JACK Jack in the Box Inc

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(1)	Earnings per share may not add due to rounding.

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2.	DISCONTINUED OPERATIONS

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3.	SUMMARY OF REFRANCHISINGS, FRANCHISEE DEVELOPMENT AND ACQUISITIONS

(1)	Amounts in 2016 and 2015 include additional proceeds recognized upon the extension of the underlying franchise and lease agreements related to restaurants sold in a prior year of $1.0 million and $0.1 million, respectively.

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4.	FAIR VALUE MEASUREMENTS

(1)	We maintain an unfunded defined contribution plan for key executives and other members of management. The fair value of this obligation is based on the closing market prices of the participants’ elected investments.

(2)	We entered into interest rate swaps to reduce our exposure to rising interest rates on our variable debt. The fair values of our interest rate swaps are based upon Level 2 inputs which include valuation models as reported by our counterparties. The key inputs for the valuation models are quoted market prices, interest rates and forward yield curves.

(3)	We did not have any transfers in or out of Level 1, 2 or 3.

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5.	DERIVATIVE INSTRUMENTS

6.	IMPAIRMENT AND OTHER CHARGES, NET

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(1)	Adjustments relate primarily to revisions of certain sublease and cost assumptions. The estimates we make related to our future lease obligations, primarily the sublease income we anticipate, are subject to a high degree of judgment and may differ from actual sublease income due to changes in economic conditions, desirability of the sites and other factors.

7.	INCOME TAXES

8.	RETIREMENT PLANS

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9.	SHARE-BASED COMPENSATION

10.	STOCKHOLDERS’ EQUITY

11.	AVERAGE SHARES OUTSTANDING

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12.	CONTINGENCIES AND LEGAL MATTERS

13.	SEGMENT REPORTING

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14.	SUPPLEMENTAL CONSOLIDATED CASH FLOW INFORMATION (in thousands)

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15.	SUPPLEMENTAL CONSOLIDATED BALANCE SHEET INFORMATION (in thousands)

16.	SUBSEQUENT EVENTS

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ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

•	Overview — a general description of our business and 2016 highlights.

•	Financial reporting — a discussion of changes in presentation, if any.

•	Results of operations — an analysis of our condensed consolidated statements of earnings for the periods presented in our condensed consolidated financial statements.

•	Liquidity and capital resources — an analysis of our cash flows including capital expenditures, share repurchase activity, dividends, known trends that may impact liquidity and the impact of inflation, if applicable.

•	Discussion of critical accounting estimates — a discussion of accounting policies that require critical judgments and estimates.

•	New accounting pronouncements — a discussion of new accounting pronouncements, dates of implementation and the impact on our consolidated financial position or results of operations, if any.

•	Cautionary statements regarding forward-looking statements — a discussion of the risks and uncertainties that may cause our actual results to differ materially from any forward-looking statements made by management.

•

Changes in sales at restaurants open more than one year (“same-store sales”) and average unit volumes (“AUVs”) are presented for franchised restaurants and on a system-wide basis, which includes company and franchise restaurants. Franchise sales represent sales at franchise restaurants and are revenues of our franchisees. We do not record franchise sales as revenues; however, our royalty revenues and percentage rent revenues are calculated based on a percentage of franchise sales. We believe franchise and system same-store sales and AUV information is useful to investors as a significant indicator of the overall strength of our business.

•	Company restaurant margin (“restaurant margin”) is defined as Company restaurant sales less expenses incurred directly by our restaurants in generating those sales (food and packaging costs, payroll and employee benefits, and occupancy and other costs). We also present restaurant margin as a percentage of Company restaurant sales.

•	Franchise margin is defined as total franchise revenues less franchise costs and is also presented as a percentage of franchise revenues.

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•	Same-Store Sales Growth — Same-store sales grew 0.5% at company-operated Jack in the Box restaurants primarily driven by price increases. Qdoba’s same-store sales increase of 1.5% at company-operated restaurants was driven primarily by an increase in transactions and double-digit catering growth.

•

Commodity Costs — Commodity costs decreased approximately 1.7% at our Jack in the Box restaurants, and decreased approximately 5.4% at our Qdoba restaurants in 2016 compared with a year ago. We expect our overall commodity costs in fiscal 2016 to decrease approximately 2% and 4% at our Jack in the Box and Qdoba restaurants, respectively. Beef represents the largest portion, or approximately 20%, of the Company’s overall commodity spend. We typically do not enter into fixed price contracts for our beef needs. For the full year, we currently expect beef costs to decrease approximately 15-20%.

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Restaurant Margin Expansion — Our consolidated company-operated restaurant margin increased 20 basis points in 2016 to 19.5%. Jack in the Box’s company-operated restaurant margin improved 150 basis points to 20.9% due primarily to lower costs for food and packaging and benefits of refranchising. Company-operated restaurant margins at our Qdoba restaurants decreased 270 basis points to 16.6% primarily reflecting higher staffing levels and an increase in new restaurant activity.

•	Jack in the Box Franchising Program — Year-to-date, franchisees opened a total of five restaurants. In fiscal 2016, we expect franchisees to open approximately 16 Jack in the Box restaurants. Our Jack in the Box system was 82% franchised at the end of the first quarter. We plan to increase franchise ownership of the Jack in the Box system to at least 90% within the next two years.

•	Qdoba New Unit Growth — Year-to-date, we opened nine company-operated restaurants and franchisees opened six restaurants. In fiscal 2016, we plan to open 50 to 60 Qdoba restaurants, of which approximately half are expected to be company-operated restaurants.

•	Return of Cash to Shareholders — During 2016, we returned cash to shareholders in the form of share repurchases and cash dividends. We repurchased 1.3 million shares of our common stock at an average price of $78.48 per share, totaling $100.0 million, including the costs of brokerage fees. We also declared dividends of $0.30 per share totaling $10.6 million.

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(1)	As a percentage of company restaurant sales.

(2)	As a percentage of franchise rental revenues.

(3)	As a percentage of franchise royalties and other.

(4)	As a percentage of earnings from continuing operations and before income taxes.

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(1)	Amounts in 2016 and 2015 include price increases of approximately 2.8% and 2.1%, respectively.

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(1)	Amounts in 2016 and 2015 include price increases of approximately 0.7% and 0.6%, respectively, year-to-date.

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•	working capital;

•	capital expenditures for new restaurant construction and restaurant renovations;

•	income tax payments;

•	debt service requirements; and

•	obligations related to our benefit plans.

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•

Food service businesses such as ours may be materially and adversely affected by changes in consumer preferences or dining habits, and economic, political and socioeconomic conditions. Adverse economic conditions such as unemployment and decreased discretionary spending may result in reduced restaurant traffic and sales and impose practical limits on pricing. We are also subject to geographic concentration risks, with nearly 70% of system Jack in the Box restaurants located in California and Texas.

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•	Our profitability depends in part on food and commodity costs and availability, including animal feed costs and fuel costs and other supply and distribution costs. The risks of increased commodities costs and volatility in costs could adversely affect our profitability and results of operations.

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The success of our business strategy depends on the value and relevance of our brands. Multi-unit food service businesses such as ours can be materially and adversely affected by widespread negative publicity of any type, particularly regarding food quality, food safety or public health issues. Negative publicity regarding our brands or the restaurant industry in general could cause a decline in system restaurant sales and could have a material adverse effect on our financial condition and results of operations.

•	We are reliant on third party suppliers and distributors, and any shortages or interruptions in supply could adversely affect the availability, quality and cost of ingredients.

•	Our business can be materially and adversely affected by severe weather conditions or natural disasters, which can result in lost restaurant sales, supply chain interruptions and increased costs.

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Growth and new restaurant development involve substantial risks, including risks associated with unavailability of suitable franchisees, limited financing availability, cost overruns and the inability to secure suitable sites on acceptable terms. In addition, our growth strategy includes opening restaurants in new or existing markets where we cannot assure that we will be able to successfully expand or acquire critical market presence, attract customers or otherwise operate profitably.

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There are risks associated with our franchise business model, including the demand for our franchises, the selection of appropriate franchisees and whether our franchisees and new restaurant developers will have the capabilities to be effective operators and remain aligned with us on operating, promotional and capital-intensive initiatives, in an ever-changing competitive environment. Additionally, our franchisees and operators could experience operational, financial or other challenges that could affect payments to us of rents and/or royalties, or could damage our brands and reputation.

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The restaurant and take-away food industry is highly competitive with respect to price, service, location, brand identification and menu quality and innovation. We cannot assure that we will be able to effectively respond to aggressive competitors (including competitors with significantly greater financial resources); or that our competitive strategies will increase our same-store sales and AUVs; or that our new products, service initiatives, overall strategies or execution of those strategies will be successful.

•	Should our advertising and promotions be less effective than our competitors, there could be a material adverse effect on our results of operations and financial condition.

•	The cost-saving initiatives planned or taken in recent years, including the outsourcing of our distribution business and integration of the Jack in the Box and Qdoba technology systems, are subject to risks and uncertainties, and we cannot assure that these activities, or any other activities we undertake in the future, will achieve the desired savings and efficiencies.

•	The loss of key personnel could have a material adverse effect on our business.

•	The costs of compliance with government regulations, including those resulting in increased labor costs, could negatively affect our results of operations and financial condition.

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A material failure or interruption of service or a breach in security of our information technology systems or databases could cause reduced efficiency in operations, loss or misappropriation of data or business interruptions, which in turn could affect cash flows or our operating results. In addition, the costs of information security, regulatory compliance, investment in technology and risk mitigation measures may negatively affect our margins or financial results.

•	We maintain a documented system of internal controls, which is reviewed and monitored by an Internal Controls Committee and tested by the Company’s full-time internal audit department. Any failures in the effectiveness of our internal controls could have a material adverse effect on our operating results or cause us to fail to meet our reporting obligations.

•	We are subject to risks of owning, operating and leasing property, including but not limited to environmental risks, which could result in the imposition of severe penalties or restrictions on operations by governmental agencies or courts of law, which could adversely affect operations.

•

We have a significant amount of indebtedness, which could adversely affect our business and our ability to meet our obligations. Our ability to repay expected borrowings under our credit facility and to meet our other debt or contractual obligations will depend upon our future performance and our cash flows from operations, both of which are subject to prevailing economic conditions and financial, business and other known and unknown risks and uncertainties, certain of which are beyond our control.

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•	Changes in accounting standards, policies or related interpretations by accountants or regulatory entities may negatively impact our results.

•	We are subject to litigation which is inherently unpredictable and can result in unfavorable resolutions where the amount of ultimate loss may exceed our estimated loss contingencies, impose other costs related to defense of claims, or distract management from our operations.

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2.6	TERMINATION OF EMPLOYMENT.

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3.6	TERMINATION OF EMPLOYMENT.

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15	INTERNAL REVENUE CODE SECTION 280G EXCISE TAX PROVISION.

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1.	I have reviewed this quarterly report on Form 10-Q of Jack in the Box Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.	The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.	Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.	The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

1.	I have reviewed this quarterly report on Form 10-Q of Jack in the Box Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.	The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles

c.	Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.	Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.	The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

(1)	the Quarterly Report on Form 10-Q of the Registrant, to which this certification is attached as an exhibit (the “Report”), fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

(2)	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

(1)	the Quarterly Report on Form 10-Q of the Registrant, to which this certification is attached as an exhibit (the “Report”), fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

(2)	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

v3.3.1.900

Document And Entity Information - shares	4 Months Ended
	Jan. 17, 2016	Feb. 12, 2016
Entity Information [Line Items]
Entity Registrant Name	JACK IN THE BOX INC /NEW/
Entity Central Index Key	0000807882
Current Fiscal Year End Date	--10-02
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jan. 17, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		34,681,826

v3.3.1.900

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jan. 17, 2016	Sep. 27, 2015
Current assets:
Cash and cash equivalents	$ 7,100	$ 17,743
Accounts and other receivables, net	51,673	47,975
Inventories	7,871	7,376
Prepaid expenses	20,365	16,240
Assets held for sale	19,359	15,516
Other current assets	3,018	3,106
Total current assets	109,386	107,956
Property and equipment, at cost	1,570,364	1,563,377
Less accumulated depreciation and amortization	(852,360)	(835,114)
Property and equipment, net	718,004	728,263
Intangible assets, net	14,552	14,765
Goodwill	149,012	149,027
Other assets, net	282,053	303,968
Total assets	1,273,007	1,303,979
Current liabilities:
Current maturities of long-term debt	24,760	26,677
Accounts payable	43,995	32,137
Accrued liabilities	143,854	170,575
Total current liabilities	212,609	229,389
Long-term debt, net of current maturities	761,252	688,579
Other long-term liabilities	359,265	370,058
Stockholders’ (deficit) equity:
Preferred stock $0.01 par value, 15,000,000 shares authorized, none issued	0	0
Common stock $0.01 par value, 175,000,000 shares authorized, 81,270,513 and 81,096,156 issued, respectively	813	811
Capital in excess of par value	409,607	402,986
Retained earnings	1,338,724	1,316,119
Accumulated other comprehensive loss	(137,830)	(132,530)
Treasury stock, at cost, 46,588,687 and 45,314,529 shares, respectively	(1,671,433)	(1,571,433)
Total stockholders’ (deficit) equity	(60,119)	15,953
Total liabilities and stockholders' equity	$ 1,273,007	$ 1,303,979

v3.3.1.900

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jan. 17, 2016	Sep. 27, 2015
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	15,000,000	15,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	175,000,000	175,000,000
Common stock, shares issued	81,270,513	81,096,156
Treasury stock at cost, shares	46,588,687	45,314,529

v3.3.1.900

Condensed Consolidated Statements Of Earnings - USD ($) shares in Thousands, $ in Thousands		4 Months Ended
		Jan. 17, 2016	Jan. 18, 2015
Cash dividends declared per common share		$ 0.30	$ 0.20
Revenues:
Company restaurant sales		$ 353,221	$ 351,896
Franchise rental revenues		69,738	69,446
Franchise royalties and other		47,864	47,279
Total revenue		470,823	468,621
Company restaurant costs:
Food and packaging		108,911	113,109
Payroll and employee benefits		97,907	95,679
Occupancy and other		77,699	75,031
Total company restaurant costs		284,517	283,819
Franchise occupancy expenses		52,219	52,418
Franchise support and other costs		4,862	4,723
Selling, general and administrative expenses		65,872	63,095
Impairment and other charges, net		1,657	2,180
Gains on the sale of company-operated restaurants		(818)	(850)
Total operating costs and expenses		408,309	405,385
Earnings from operations		62,514	63,236
Interest expense, net		8,175	5,213
Earnings from continuing operations and before income taxes		54,339	58,023
Income taxes		20,442	20,925
Earnings from continuing operations		33,897	37,098
Losses from discontinued operations, net of income tax benefit		(676)	(1,263)
Net earnings		$ 33,221	$ 35,835
Net earnings per share - basic:
Earnings from continuing operations (usd per share)		$ 0.96	$ 0.96
Losses from discontinued operations (usd per share)		(0.02)	(0.03)
Net earnings per share (usd per share)	[1]	0.94	0.93
Net earnings per share - diluted:
Earnings from continuing operations (usd per share)		0.94	0.94
Losses from discontinued operations (usd per share)		(0.02)	(0.03)
Net earnings per share (usd per share)	[1]	$ 0.92	$ 0.91
Weighted-average shares outstanding:
Basic (in shares)		35,458	38,640
Diluted (in shares)		35,946	39,384
[1] (1)Earnings per share may not add due to rounding.

v3.3.1.900

Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Thousands	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Net earnings	$ 33,221	$ 35,835
Net change in fair value of derivatives	(11,437)	(6,758)
Net loss reclassified to earnings	1,444	627
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax	(9,993)	(6,131)
Tax effect	3,868	2,347
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(6,125)	(3,784)
Actuarial losses and prior service costs reclassified to earnings	1,398	3,035
Tax effect	(541)	(1,162)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	857	1,873
Foreign currency translation adjustments	(52)	6
Tax effect	20	(3)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(32)	3
Other comprehensive loss, net of tax	(5,300)	(1,908)
Comprehensive income	$ 27,921	$ 33,927

v3.3.1.900

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands		4 Months Ended
		Jan. 17, 2016	Jan. 18, 2015
Cash flows from operating activities:
Net earnings		$ 33,221	$ 35,835
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization		28,514	27,370
Deferred finance cost amortization		823	661
Excess tax benefits from share-based compensation arrangements		(2,020)	(14,533)
Deferred income taxes		(2,128)	973
Share-based compensation expense		4,088	3,885
Pension and postretirement expense		4,149	5,769
Losses (gains) on cash surrender value of company-owned life insurance		2,466	(574)
Gains on the sale of company-operated restaurants		(818)	(850)
Losses on the disposition of property and equipment		651	621
Impairment charges and other		446	766
Changes in assets and liabilities:
Accounts and other receivables		(4,204)	3,999
Inventories		(495)	(121)
Prepaid expenses and other current assets		1,205	16,683
Accounts payable		7,386	(4,623)
Accrued liabilities		(25,403)	(20,063)
Pension and postretirement contributions		(1,883)	(6,880)
Other		(1,089)	(1,571)
Cash flows provided by operating activities		44,909	47,347
Cash flows from investing activities:
Purchases of property and equipment		(31,543)	(19,885)
Purchases of assets intended for sale and leaseback		(3,274)	0
Proceeds from the sale and leaseback of assets		5,803	0
Proceeds from the sale of company-operated restaurants	[1]	1,021	1,174
Collections on notes receivable		441	5,050
Acquisitions of franchise-operated restaurants		324	0
Other		(28)	22
Cash flows used in investing activities		(27,256)	(13,639)
Cash flows from financing activities:
Borrowings on revolving credit facilities		176,000	154,000
Repayments of borrowings on revolving credit facilities		(97,000)	(98,000)
Principal repayments on debt		(8,479)	(5,279)
Dividends paid on common stock		(10,592)	(7,791)
Proceeds from issuance of common stock		492	11,302
Repurchases of common stock		(100,000)	(104,669)
Excess tax benefits from share-based compensation arrangements		2,020	14,533
Change in book overdraft		9,295	423
Cash flows used in financing activities		(28,264)	(35,481)
Effect of exchange rate changes on cash and cash equivalents		(32)	3
Net decrease in cash and cash equivalents		(10,643)	(1,770)
Cash and cash equivalents at beginning of period		17,743	10,578
Cash and cash equivalents at end of period		$ 7,100	$ 8,808
[1] Amounts in 2016 and 2015 include additional proceeds recognized upon the extension of the underlying franchise and lease agreements related to restaurants sold in a prior year of $1.0 million and $0.1 million, respectively.

v3.3.1.900

Basis Of Presentation	4 Months Ended
	Jan. 17, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	BASIS OF PRESENTATION Nature of operations — Founded in 1951, Jack in the Box Inc. (the “Company”) operates and franchises Jack in the Box® quick-service restaurants and Qdoba Mexican Eats® (“Qdoba”) fast-casual restaurants. The following table summarizes the number of restaurants as of the end of each period:   January 17, 2016   January 18, 2015 Jack in the Box:       Company-operated 413   431 Franchise 1,840   1,822 Total system 2,253   2,253 Qdoba:       Company-operated 330   311 Franchise 344   330 Total system 674   641 References to the Company throughout these Notes to Condensed Consolidated Financial Statements are made using the first person notations of “we,” “us” and “our.” Basis of presentation — The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles and the rules and regulations of the Securities and Exchange Commission (“SEC”). During fiscal 2012, we entered into an agreement to outsource our Jack in the Box distribution business. In the third quarter of fiscal 2013, we closed 62 Qdoba restaurants (the “2013 Qdoba Closures”) as part of a comprehensive Qdoba market performance review. The results of operations for our distribution business and for the 2013 Qdoba Closures are reported as discontinued operations for all periods presented. Refer to Note 2, Discontinued Operations, for additional information. Unless otherwise noted, amounts and disclosures throughout these Notes to Condensed Consolidated Financial Statements relate to our continuing operations. In our opinion, all adjustments considered necessary for a fair presentation of financial condition and results of operations for these interim periods have been included. Operating results for one interim period are not necessarily indicative of the results for any other interim period or for the full year. These financial statements should be read in conjunction with the consolidated financial statements and related notes contained in our Annual Report on Form 10-K for the fiscal year ended September 27, 2015 (“2015 Form 10-K”). The accounting policies used in preparing these condensed consolidated financial statements are the same as those described in our 2015 Form 10-K with the exception of new accounting pronouncements adopted in fiscal 2016 which are described below. Principles of consolidation — The condensed consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries and the accounts of any variable interest entities (“VIEs”) where we are deemed the primary beneficiary. All significant intercompany accounts and transactions are eliminated. The financial results and position of our VIE are immaterial to our condensed consolidated financial statements. Reclassifications and adjustments — Certain prior year amounts in the condensed consolidated financial statements have been reclassified to conform to the fiscal 2016 presentation. In our 2015 Form 10-K, on our consolidated statements of earnings, we began to separately state our franchise revenues derived from rentals and those derived from royalties and other. To provide clarity, we additionally have separately stated the associated rental expense, and depreciation and amortization related to the rental income received from franchisees. For comparison purposes, we have reclassified prior year franchise revenue and franchise costs line items to reflect the new method of presentation in our accompanying condensed consolidated statements of earnings. Fiscal year — Our fiscal year is 52 or 53 weeks ending the Sunday closest to September 30. Fiscal year 2016 includes 53 weeks, while fiscal year 2015 includes 52 weeks. Our first quarter includes 16 weeks and all other quarters include 12 weeks, with the exception of the fourth quarter of fiscal 2016, which includes 13 weeks. All comparisons between 2016 and 2015 refer to the 16-weeks (“quarter”) ended January 17, 2016 and January 18, 2015, respectively, unless otherwise indicated. Use of estimates — In preparing the condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles, management is required to make certain assumptions and estimates that affect reported amounts of assets, liabilities, revenues, expenses and the disclosure of contingencies. In making these assumptions and estimates, management may from time to time seek advice and consider information provided by actuaries and other experts in a particular area. Actual amounts could differ materially from these estimates. Effect of new accounting pronouncements — In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue Recognition — Revenue from Contracts with Customers (Topic 606), which provides a comprehensive new revenue recognition model that requires an entity to recognize revenue in an amount that reflects the consideration to which the entity expects to receive for the transfer of promised goods or services to its customers. The standard also requires additional disclosure regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. This guidance is effective for annual and interim periods beginning after December 15, 2017. As such, we will be required to adopt the standard in the first quarter of fiscal 2018. This ASU is to be applied retrospectively or using a cumulative effect transition method, and early adoption is not permitted. We are currently evaluating which transition method to use and the effect that this pronouncement will have on our consolidated financial statements and related disclosures. In November 2015, the FASB issued ASU No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes, which simplifies the presentation of deferred income taxes. This standard requires deferred tax liabilities and assets to be classified as noncurrent in a classified statement of financial position. The standard is effective prospectively or retrospectively for all periods presented for annual and interim periods beginning after December 15, 2017, with early adoption permitted. We early adopted this standard in the first quarter of 2016 and the prior period was retrospectively adjusted, resulting in a $40.0 million reclassification of current deferred income taxes to other assets, net on our September 27, 2015 condensed consolidated balance sheet.

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Discontinued Operations	4 Months Ended
	Jan. 17, 2016
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS Distribution business — During fiscal 2012, we entered into an agreement with a third party distribution service provider pursuant to a plan approved by our board of directors to sell our Jack in the Box distribution business. During the first quarter of fiscal 2013, we completed the transition of our distribution centers. The operations and cash flows of the business have been eliminated and in accordance with the provisions of the FASB authoritative guidance on the presentation of financial statements, the results are reported as discontinued operations for all periods presented. In 2016 and 2015, results of discontinued operations were immaterial for both periods. Our liability for lease commitments related to our distribution centers is included in accrued liabilities and other long-term liabilities, and was $0.2 million as of January 17, 2016 and September 27, 2015. The lease commitment balance as of January 17, 2016 relates to one distribution center subleased at a loss. 2013 Qdoba Closures — During the third quarter of fiscal 2013, we closed 62 Qdoba restaurants. The decision to close these restaurants was based on a comprehensive analysis that took into consideration levels of return on investment and other key operating performance metrics. Since the closed locations were not predominantly located near those remaining in operation, we did not expect the majority of cash flows and sales lost from these closures to be recovered. In addition, we did not anticipate any ongoing involvement or significant direct cash flows from the closed stores. Therefore, in accordance with the provisions of the FASB authoritative guidance on the presentation of financial statements, the results of operations for these restaurants are reported as discontinued operations for all periods presented. The following is a summary of the results of operations related to the 2013 Qdoba Closures for each period (in thousands):     Sixteen Weeks Ended     January 17, 2016   January 18, 2015 Unfavorable lease commitment adjustments   $ (1,006 )   $ (1,799 ) Bad debt expense related to a subtenant   (124 )   — Ongoing facility related costs   (38 )   (61 ) Broker commissions   —   (112 ) Total operating loss before income tax benefit   $ (1,168 )   $ (1,972 ) We do not expect the remaining costs to be incurred related to these closures to be material; however, the estimates we make related to our future lease obligations, primarily the sublease income we anticipate, are subject to a high degree of judgment and may differ from actual sublease income due to changes in economic conditions, desirability of the sites and other factors. Our liability for lease commitments related to the 2013 Qdoba Closures is included in accrued liabilities and other long-term liabilities and changed as follows in 2016 (in thousands): Balance as of September 27, 2015 $ 4,256 Adjustments 1,006 Cash payments (1,179 ) Balance as of January 17, 2016 $ 4,083 Adjustments primarily relate to revisions to certain sublease and cost assumptions due to changes in market conditions.

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Summary Of Refranchisings, Franchisee Development And Acquisitions	4 Months Ended
	Jan. 17, 2016
Summary Of Refranchisings, Franchisee Development And Acquisitions [Abstract]
Summary Of Refranchisings, Franchisee Development And Acquisitions	SUMMARY OF REFRANCHISINGS, FRANCHISEE DEVELOPMENT AND ACQUISITIONS Refranchisings and franchisee development — The following is a summary of the number of restaurants sold to franchisees, number of restaurants developed by franchisees, and the related gains and fees recognized (dollars in thousands):     Sixteen Weeks Ended     January 17, 2016   January 18, 2015 Restaurants sold to Jack in the Box franchisees   1   1 New restaurants opened by franchisees:         Jack in the Box   5   6 Qdoba   6   6           Initial franchise fees   $ 385   $ 375           Proceeds from the sale of company-operated restaurants (1)   $ 1,021   $ 1,174 Net assets sold (primarily property and equipment)   (193 )   (489 ) Goodwill related to the sale of company-operated restaurants   (10 )   (16 ) Other   —   181 Gains on the sale of company-operated restaurants   $ 818   $ 850 ____________________________ (1) Amounts in 2016 and 2015 include additional proceeds recognized upon the extension of the underlying franchise and lease agreements related to restaurants sold in a prior year of $1.0 million and $0.1 million, respectively. Franchise acquisitions — In 2016, we acquired one Jack in the Box franchise restaurant, and in 2015, there was no acquisition activity. We account for the acquisition of franchised restaurants using the acquisition method of accounting for business combinations. The purchase price allocations were based on fair value estimates determined using significant unobservable inputs (Level 3). The 2016 acquisition was not material to our accompanying condensed consolidated financial statements.

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Fair Value Measurements	4 Months Ended
	Jan. 17, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Financial assets and liabilities — The following table presents the financial assets and liabilities measured at fair value on a recurring basis (in thousands):   Total         Quoted Prices in Active Markets for Identical Assets (3) (Level 1)   Significant Other Observable Inputs (3) (Level 2)   Significant Unobservable Inputs (3) (Level 3) Fair value measurements as of January 17, 2016:               Non-qualified deferred compensation plan (1) $ (34,347 )   $ (34,347 )   $ —   $ — Interest rate swaps (Note 5) (2)  (36,367 )   —   (36,367 )   — Total liabilities at fair value $ (70,714 )   $ (34,347 )   $ (36,367 )   $ — Fair value measurements as of September 27, 2015:               Non-qualified deferred compensation plan (1) $ (35,003 )   $ (35,003 )   $ —   $ — Interest rate swaps (Note 5) (2)  (26,374 )   —   (26,374 )   — Total liabilities at fair value $ (61,377 )   $ (35,003 )   $ (26,374 )   $ —   ____________________________ (1) We maintain an unfunded defined contribution plan for key executives and other members of management. The fair value of this obligation is based on the closing market prices of the participants’ elected investments. (2) We entered into interest rate swaps to reduce our exposure to rising interest rates on our variable debt. The fair values of our interest rate swaps are based upon Level 2 inputs which include valuation models as reported by our counterparties. The key inputs for the valuation models are quoted market prices, interest rates and forward yield curves. (3) We did not have any transfers in or out of Level 1, 2 or 3. The fair values of our debt instruments are based on the amount of future cash flows associated with each instrument discounted using our borrowing rate. At January 17, 2016, the carrying value of all financial instruments was not materially different from fair value, as the borrowings are prepayable without penalty. The estimated fair values of our capital lease obligations approximated their carrying values as of January 17, 2016. Non-financial assets and liabilities — Our non-financial instruments, which primarily consist of property and equipment, goodwill and intangible assets, are reported at carrying value and are not required to be measured at fair value on a recurring basis. However, on an annual basis or whenever events or changes in circumstances indicate that their carrying value may not be recoverable, non-financial instruments are assessed for impairment. If applicable, the carrying values are written down to fair value. In connection with our impairment reviews performed during 2016, no material fair value adjustments were required. Refer to Note 6, Impairment and Other Charges, Net for additional information regarding impairment charges.

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Derivative Instruments	4 Months Ended
	Jan. 17, 2016
Derivative Instruments and Hedges, Assets [Abstract]
Derivative Instruments	DERIVATIVE INSTRUMENTS Objectives and strategies — We are exposed to interest rate volatility with regard to our variable rate debt. To reduce our exposure to rising interest rates, in April 2014, we entered into nine forward-starting interest rate swap agreements that effectively convert $300.0 million of our variable rate borrowings to a fixed rate basis from October 2014 through October 2018. In June 2015, we entered into 11 forward-starting interest rate swap agreements that effectively convert an additional $200.0 million of our variable rate borrowings, and future expected variable rate borrowings to a fixed rate from October 2015 through October 2018, and $500.0 million from October 2018 through October 2022. These agreements have been designated as cash flow hedges in accordance with the provisions of the FASB authoritative guidance for derivatives and hedging. To the extent that they are effective in offsetting the variability of the hedged cash flows, changes in the fair values of the derivatives are not included in earnings, but are included in other comprehensive income (“OCI”). These changes in fair value are subsequently reclassified into net earnings as a component of interest expense as the hedged interest payments are made on our term loan debt. Financial position — The following derivative instruments were outstanding as of the end of each period (in thousands):   Balance Sheet Location   January 17, 2016   September 27, 2015     Fair Value   Fair Value Derivatives designated as hedging instruments:           Interest rate swaps (Note 4) Accrued liabilities   $ (3,231 )   $ (3,379 ) Interest rate swaps (Note 4) Other long-term liabilities   (33,136 )   (22,995 ) Total derivatives     $ (36,367 )   $ (26,374 ) Financial performance — The following is a summary of the OCI activity related to our interest rate swap derivative instruments (in thousands):   Location of Loss in Income   Sixteen Weeks Ended     January 17, 2016   January 18, 2015 Loss recognized in OCI N/A   $ (11,437 )   $ (6,758 ) Loss reclassified from accumulated OCI into net earnings Interest expense, net   $ 1,444   $ 627 Amounts reclassified from accumulated OCI into interest expense represent payments made to the counterparties for the effective portions of the interest rate swaps. During the periods presented, our interest rate swaps had no hedge ineffectiveness.

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Impairment, Disposition Of Property And Equipment, Restaurant Closing Costs And Restructuring	4 Months Ended
	Jan. 17, 2016
Restructuring and Related Activities [Abstract]
Schedule of Impairment and Other Charges Net [Text Block]	Impairment and other charges, net in the accompanying condensed consolidated statements of earnings is comprised of the following (in thousands):   Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Losses on the disposition of property and equipment, net $ 651   $ 621 Costs of closed restaurants (primarily lease obligations) and other 560   786 Accelerated depreciation 446   752 Restaurant impairment charges —   14 Restructuring costs —   7   $ 1,657   $ 2,180

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Income Taxes	4 Months Ended
	Jan. 17, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The income tax provisions reflect tax rates of 37.6% in 2016, and 36.1% in 2015. The major components of the year-over-year change in tax rates were a decrease in operating earnings before income taxes, an increase in the Company’s state tax rate, and a decrease in the market performance of insurance products used to fund certain non-qualified retirement plans which are excluded from taxable income. The Company recognized a benefit from the retroactive reenactment of the Work Opportunity Tax Credit for calendar year 2015 during the first quarter of 2016. Similarly, a retroactive reenactment occurred for calendar year 2014 during the first quarter of 2015. The final annual tax rate cannot be determined until the end of the fiscal year; therefore, the actual 2016 rate could differ from our current estimates. We file income tax returns in the United States and all state and local jurisdictions in which we operate that impose an income tax. The federal statute of limitations has not expired for fiscal years 2012 and forward. The statutes of limitations for California and Texas, which constitute the Company’s major state tax jurisdictions, have not expired for fiscal years 2011 and forward.

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Retirement Plans	4 Months Ended
	Jan. 17, 2016
Pension and Other Postretirement Benefit Expense [Abstract]
Retirement Plans	RETIREMENT PLANS Defined benefit pension plans — We sponsor two defined benefit pension plans: a qualified plan covering substantially all full-time Jack in the Box employees hired prior to January 1, 2011, and an unfunded supplemental executive plan which provides certain employees additional pension benefits and was closed to new participants effective January 1, 2007. In fiscal 2011, the Board of Directors approved the sunset of our qualified plan whereby participants no longer accrue benefits effective December 31, 2015. Benefits under both plans are based on the employees’ years of service and compensation over defined periods of employment. Postretirement healthcare plans — We also sponsor two healthcare plans, closed to new participants, that provide postretirement medical benefits to certain employees who have met minimum age and service requirements. The plans are contributory, with retiree contributions adjusted annually, and contain other cost-sharing features such as deductibles and coinsurance. Net periodic benefit cost — The components of net periodic benefit cost in each period were as follows (in thousands):     Sixteen Weeks Ended    January 17, 2016   January 18, 2015 Defined benefit pension plans:       Service cost $ 1,616   $ 2,544 Interest cost 7,440   6,983 Expected return on plan assets (6,694 )   (7,161 ) Actuarial loss (1) 1,257   2,896 Amortization of unrecognized prior service costs (1) 74   83 Net periodic benefit cost $ 3,693   $ 5,345 Postretirement healthcare plans:       Interest cost $ 389   $ 368 Actuarial loss (1) 67   56 Net periodic benefit cost $ 456   $ 424 ___________________________ (1)    Amounts were reclassified from accumulated OCI into net earnings as a component of selling, general and administrative expenses. Future cash flows — Our policy is to fund our plans at or above the minimum required by law. As of January 1, 2015, the date of our last actuarial funding valuation, there was no minimum contribution funding requirement. Details regarding 2016 contributions are as follows (in thousands):   Defined Benefit Pension Plans   Postretirement Healthcare Plans Net year-to-date contributions $ 1,496   $ 387 Remaining estimated net contributions during fiscal 2016 $ 23,000   $ 900 We will continue to evaluate contributions to our qualified defined benefit pension plan based on changes in pension assets as a result of asset performance in the current market and economic environment.

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Share-Based Compensation	4 Months Ended
	Jan. 17, 2016
Share-based Compensation [Abstract]
Share-Based Compensation	SHARE-BASED COMPENSATION We offer share-based compensation plans to attract, retain and motivate key officers, employees and non-employee directors to work toward the financial success of the Company. In 2016, we granted the following shares related to our share-based compensation awards: Stock options 99,923 Performance share awards 32,970 Nonvested stock units 130,952 The components of share-based compensation expense recognized in each period are as follows (in thousands):   Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Stock options $ 975   $ 999 Performance share awards 1,271   1,081 Nonvested stock awards 27   61 Nonvested stock units 1,815   1,744 Total share-based compensation expense $ 4,088   $ 3,885

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Stockholders' Equity	4 Months Ended
	Jan. 17, 2016
Stockholders' Equity Note [Abstract]
Stockholders' Equity	STOCKHOLDERS’ EQUITY Repurchases of common stock — During 2016, we repurchased 1.3 million shares at an aggregate cost of $100.0 million. As of January 17, 2016, there was $100.0 million remaining under a stock-buyback program which expires in November 2017. Dividends — In 2016, the Board of Directors declared a cash dividend of $0.30 per share which was paid on December 22, 2015 to shareholders of record as of the close of business on December 9, 2015, and totaled $10.6 million. Future dividends are subject to approval by our Board of Directors.

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Average Shares Outstanding	4 Months Ended
	Jan. 17, 2016
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Average Shares Outstanding	AVERAGE SHARES OUTSTANDING Our basic earnings per share calculation is computed based on the weighted-average number of common shares outstanding. Our diluted earnings per share calculation is computed based on the weighted-average number of common shares outstanding adjusted by the number of additional shares that would have been outstanding had the potentially dilutive common shares been issued. Potentially dilutive common shares include stock options, nonvested stock awards and units and non-management director stock equivalents. Performance share awards are included in the average diluted shares outstanding each period if the performance criteria have been met at the end of the respective periods. The following table reconciles basic weighted-average shares outstanding to diluted weighted-average shares outstanding (in thousands):   Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Weighted-average shares outstanding – basic 35,458   38,640 Effect of potentially dilutive securities:       Stock options 176   397 Nonvested stock awards and units 187   198 Performance share awards 125   149 Weighted-average shares outstanding – diluted 35,946   39,384 Excluded from diluted weighted-average shares outstanding:       Antidilutive 149   60 Performance conditions not satisfied at the end of the period —   20

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Contingencies and Legal Matters	4 Months Ended
	Jan. 17, 2016
Legal Matters and Contingencies [Abstract]
Legal Matters and Contingencies [Text Block]	CONTINGENCIES AND LEGAL MATTERS  Legal matters — The Company assesses contingencies, including litigation contingencies, to determine the degree of probability and range of possible loss for potential accrual in its financial statements. An estimated loss contingency is accrued in the financial statements if it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Because litigation is inherently unpredictable, assessing contingencies is highly subjective and requires judgments about future events. When evaluating litigation contingencies, we may be unable to provide a meaningful estimate due to a number of factors, including the procedural status of the matter in question, the availability of appellate remedies, insurance coverage related to the claim or claims in question, the presence of complex or novel legal theories, and/or the ongoing discovery and development of information important to the matter. In addition, damage amounts claimed in litigation against us may be unsupported, exaggerated or unrelated to possible outcomes, and as such are not meaningful indicators of our potential liability or financial exposure. We regularly review contingencies to determine the adequacy of the accruals and related disclosures. The ultimate amount of loss may differ from these estimates.  Gessele v. Jack in the Box Inc. — In August 2010, five former employees instituted litigation in federal court in Oregon alleging claims under the federal Fair Labor Standards Act and Oregon wage and hour laws. The plaintiffs alleged that the Company failed to pay non-exempt employees for certain meal breaks and improperly made payroll deductions for shoe purchases and for workers’ compensation expenses, and later added additional claims relating to timing of final pay and related wage and hour claims involving employees of a franchisee. The most recent complaint seeks damages of $45.0 million but does not provide a basis for that amount. In fiscal 2012, we accrued for a single claim for which we believe a loss is both probable and estimable; this accrued loss contingency did not have a material effect on our results of operations. We have not established a loss contingency accrual for those claims as to which we believe liability is not probable or estimable, and we plan to vigorously defend against this lawsuit. Nonetheless, an unfavorable resolution of this matter in excess of our current accrued loss contingencies could have a material adverse effect on our business, results of operations, liquidity or financial condition. Other legal matters — In addition to the matter described above, we are subject to normal and routine litigation brought by former, current or prospective employees, customers, franchisees, vendors, landlords, shareholders or others. We intend to defend ourselves in any such matters. Some of these matters may be covered, at least in part, by insurance. Our insurance liability (undiscounted) and reserves are established in part by using independent actuarial estimates of expected losses for reported claims and for estimating claims incurred but not reported. Our estimated liability for general liability and workers’ compensation claims exceeded our self-insurance retention limits by $25.8 million as of September 27, 2015, and was reduced by $21.7 million in 2016 due to a judgment paid by our insurance providers. We expect to be fully covered for the remaining amounts that exceed our self-insurance retention limits by our insurance providers. Although we currently believe that the ultimate determination of liability in connection with legal claims pending against us, if any, in excess of amounts already provided for such matters in the condensed consolidated financial statements, will not have a material adverse effect on our business, our annual results of operations, liquidity or financial position, it is possible that our results of operations, liquidity, or financial position could be materially affected in a particular future reporting period by the unfavorable resolution of one or more matters or contingencies during such period.

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Segment Reporting	4 Months Ended
	Jan. 17, 2016
Segment Reporting [Abstract]
Segment Reporting	SEGMENT REPORTING Our principal business consists of developing, operating and franchising our Jack in the Box and Qdoba restaurant concepts, each of which we consider reportable operating segments. This segment reporting structure reflects our current management structure, internal reporting method and financial information used in deciding how to allocate our resources. Based upon certain quantitative thresholds, each operating segment is considered a reportable segment. We measure and evaluate our segments based on segment revenues and earnings from operations. The reportable segments do not include an allocation of the costs related to shared service functions, such as accounting/finance, human resources, audit services, legal, tax and treasury; nor do they include unallocated costs such as pension expense and share-based compensation. These costs are reflected in the caption “Shared services and unallocated costs,” and therefore, the measure of segment profit or loss is before such items. The following table provides information related to our operating segments in each period (in thousands):   Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Revenues by segment:       Jack in the Box restaurant operations $ 347,583   $ 351,951 Qdoba restaurant operations 123,240   116,670 Consolidated revenues $ 470,823   $ 468,621 Earnings from operations by segment:       Jack in the Box restaurant operations $ 85,690   $ 80,857 Qdoba restaurant operations 8,737   14,676 Shared services and unallocated costs (32,731 )   (33,147 ) Gains on the sale of company-operated restaurants 818   850 Consolidated earnings from operations 62,514   63,236 Interest expense, net 8,175   5,213 Consolidated earnings from continuing operations and before income taxes $ 54,339   $ 58,023 Total depreciation expense by segment:       Jack in the Box restaurant operations $ 20,473   $ 19,615 Qdoba restaurant operations 5,588   5,280 Shared services and unallocated costs 2,225   2,260 Consolidated depreciation expense $ 28,286   $ 27,155 We do not evaluate, manage or measure performance of segments using asset, interest income and expense, or income tax information; accordingly, this information by segment is not prepared or disclosed. The following table provides detail of the change in the balance of goodwill for each of our reportable segments (in thousands):   Jack in the Box   Qdoba   Total Balance at September 27, 2015 $ 48,430   $ 100,597   $ 149,027 Disposals (15 )   —   (15 ) Balance at January 17, 2016 $ 48,415   $ 100,597   $ 149,012 Refer to Note 3, Summary of Refranchisings, Franchisee Development and Acquisitions, for information regarding the transactions resulting in the changes in goodwill.

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Supplemental Consolidated Cash Flow Information	4 Months Ended
	Jan. 17, 2016
Supplemental Cash Flow Information [Abstract]
Supplemental Consolidated Cash Flow Information	SUPPLEMENTAL CONSOLIDATED CASH FLOW INFORMATION (in thousands)   Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Cash paid during the year for:       Interest, net of amounts capitalized $ 8,378   $ 5,115 Income tax payments $ 16,012   $ 152 Non-cash transactions:       Equipment capital lease obligations incurred $ 271   $ — Decrease in accrued treasury stock repurchases $ —   $ 3,112 Increase in dividends accrued or converted to common stock equivalents $ 53   $ 35 Decrease in obligations for purchases of property and equipment $ 6,025   $ 7,829

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Supplemental Consolidated Balance Sheet Information	4 Months Ended
	Jan. 17, 2016
Balance Sheet Related Disclosures [Abstract]
Supplemental Consolidated Balance Sheet Information	SUPPLEMENTAL CONSOLIDATED BALANCE SHEET INFORMATION (in thousands)   January 17, 2016   September 27, 2015 Accounts and other receivables, net:       Trade $ 35,386   $ 36,990 Notes receivable 3,610   1,726 Other 14,726   10,814 Allowance for doubtful accounts (2,049 )   (1,555 )   $ 51,673   $ 47,975 Prepaid expenses:       Prepaid income taxes $ 6,653   $ 7,645 Prepaid rent 5,552   318 Other 8,160   8,277   $ 20,365   $ 16,240 Other assets, net:       Deferred tax assets $ 120,749   $ 118,184 Company-owned life insurance policies 97,047   99,513 Deferred rent receivable 46,194   45,330 Other 18,063   40,941   $ 282,053   $ 303,968 Accrued liabilities:       Payroll and related taxes $ 41,403   $ 56,223 Insurance 35,326   35,370 Advertising 14,600   20,692 Sales and property taxes 8,275   11,574 Deferred franchise fees 1,187   1,198 Gift card liability 5,835   4,608 Other 37,228   40,910   $ 143,854   $ 170,575 Other long-term liabilities:       Pension plans $ 181,342   $ 180,476 Straight-line rent accrual 46,863   46,807 Other 131,060   142,775   $ 359,265   $ 370,058

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Subsequent Events	4 Months Ended
	Jan. 17, 2016
Subsequent Events [Abstract]
Subsequent Events [Text Block]	SUBSEQUENT EVENTS On February 12, 2016, the Board of Directors declared a cash dividend of $0.30 per share, to be paid on March 14, 2016 to shareholders of record as of the close of business on March 1, 2016. On February 12, 2016, the Board of Directors approved an additional $100.0 million stock buy-back program that expires in November 2017.

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Basis Of Presentation (Policy)	4 Months Ended
	Jan. 17, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
New Accounting Pronouncement, Early Adoption [Table Text Block]	Effect of new accounting pronouncements — In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue Recognition — Revenue from Contracts with Customers (Topic 606), which provides a comprehensive new revenue recognition model that requires an entity to recognize revenue in an amount that reflects the consideration to which the entity expects to receive for the transfer of promised goods or services to its customers. The standard also requires additional disclosure regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. This guidance is effective for annual and interim periods beginning after December 15, 2017. As such, we will be required to adopt the standard in the first quarter of fiscal 2018. This ASU is to be applied retrospectively or using a cumulative effect transition method, and early adoption is not permitted. We are currently evaluating which transition method to use and the effect that this pronouncement will have on our consolidated financial statements and related disclosures. In November 2015, the FASB issued ASU No. 2015-17, Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes, which simplifies the presentation of deferred income taxes. This standard requires deferred tax liabilities and assets to be classified as noncurrent in a classified statement of financial position. The standard is effective prospectively or retrospectively for all periods presented for annual and interim periods beginning after December 15, 2017, with early adoption permitted. We early adopted this standard in the first quarter of 2016 and the prior period was retrospectively adjusted, resulting in a $40.0 million reclassification of current deferred income taxes to other assets, net on our September 27, 2015 condensed consolidated balance sheet.
Basis of presentation	Basis of presentation — The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles and the rules and regulations of the Securities and Exchange Commission (“SEC”). During fiscal 2012, we entered into an agreement to outsource our Jack in the Box distribution business. In the third quarter of fiscal 2013, we closed 62 Qdoba restaurants (the “2013 Qdoba Closures”) as part of a comprehensive Qdoba market performance review. The results of operations for our distribution business and for the 2013 Qdoba Closures are reported as discontinued operations for all periods presented. Refer to Note 2, Discontinued Operations, for additional information. Unless otherwise noted, amounts and disclosures throughout these Notes to Condensed Consolidated Financial Statements relate to our continuing operations. In our opinion, all adjustments considered necessary for a fair presentation of financial condition and results of operations for these interim periods have been included. Operating results for one interim period are not necessarily indicative of the results for any other interim period or for the full year. These financial statements should be read in conjunction with the consolidated financial statements and related notes contained in our Annual Report on Form 10-K for the fiscal year ended September 27, 2015 (“2015 Form 10-K”). The accounting policies used in preparing these condensed consolidated financial statements are the same as those described in our 2015 Form 10-K with the exception of new accounting pronouncements adopted in fiscal 2016 which are described below.
Principles of consolidation	Principles of consolidation — The condensed consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries and the accounts of any variable interest entities (“VIEs”) where we are deemed the primary beneficiary. All significant intercompany accounts and transactions are eliminated. The financial results and position of our VIE are immaterial to our condensed consolidated financial statements.
Reclassification, Policy [Policy Text Block]	Reclassifications and adjustments — Certain prior year amounts in the condensed consolidated financial statements have been reclassified to conform to the fiscal 2016 presentation. In our 2015 Form 10-K, on our consolidated statements of earnings, we began to separately state our franchise revenues derived from rentals and those derived from royalties and other. To provide clarity, we additionally have separately stated the associated rental expense, and depreciation and amortization related to the rental income received from franchisees. For comparison purposes, we have reclassified prior year franchise revenue and franchise costs line items to reflect the new method of presentation in our accompanying condensed consolidated statements of earnings.
Fiscal year	Fiscal year — Our fiscal year is 52 or 53 weeks ending the Sunday closest to September 30. Fiscal year 2016 includes 53 weeks, while fiscal year 2015 includes 52 weeks. Our first quarter includes 16 weeks and all other quarters include 12 weeks, with the exception of the fourth quarter of fiscal 2016, which includes 13 weeks. All comparisons between 2016 and 2015 refer to the 16-weeks (“quarter”) ended January 17, 2016 and January 18, 2015, respectively, unless otherwise indicated.
Use of estimates	Use of estimates — In preparing the condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles, management is required to make certain assumptions and estimates that affect reported amounts of assets, liabilities, revenues, expenses and the disclosure of contingencies. In making these assumptions and estimates, management may from time to time seek advice and consider information provided by actuaries and other experts in a particular area. Actual amounts could differ materially from these estimates.

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Basis Of Presentation (Tables)	4 Months Ended
	Jan. 17, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary Of Number Of Restaurants	The following table summarizes the number of restaurants as of the end of each period:   January 17, 2016   January 18, 2015 Jack in the Box:       Company-operated 413   431 Franchise 1,840   1,822 Total system 2,253   2,253 Qdoba:       Company-operated 330   311 Franchise 344   330 Total system 674   641 The following is a summary of the number of restaurants sold to franchisees, number of restaurants developed by franchisees, and the related gains and fees recognized (dollars in thousands):     Sixteen Weeks Ended     January 17, 2016   January 18, 2015 Restaurants sold to Jack in the Box franchisees   1   1 New restaurants opened by franchisees:         Jack in the Box   5   6 Qdoba   6   6           Initial franchise fees   $ 385   $ 375           Proceeds from the sale of company-operated restaurants (1)   $ 1,021   $ 1,174 Net assets sold (primarily property and equipment)   (193 )   (489 ) Goodwill related to the sale of company-operated restaurants   (10 )   (16 ) Other   —   181 Gains on the sale of company-operated restaurants   $ 818   $ 850

v3.3.1.900

Discontinued Operations (Tables)	4 Months Ended
	Jan. 17, 2016
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring and Related Costs	The following is a summary of the results of operations related to the 2013 Qdoba Closures for each period (in thousands):     Sixteen Weeks Ended     January 17, 2016   January 18, 2015 Unfavorable lease commitment adjustments   $ (1,006 )   $ (1,799 ) Bad debt expense related to a subtenant   (124 )   — Ongoing facility related costs   (38 )   (61 ) Broker commissions   —   (112 ) Total operating loss before income tax benefit   $ (1,168 )   $ (1,972 )
Restructuring and Related Costs [Table Text Block]	Our liability for lease commitments related to the 2013 Qdoba Closures is included in accrued liabilities and other long-term liabilities and changed as follows in 2016 (in thousands): Balance as of September 27, 2015 $ 4,256 Adjustments 1,006 Cash payments (1,179 ) Balance as of January 17, 2016 $ 4,083 Adjustments primarily relate to revisions to certain sublease and cost assumptions due to changes in market conditions.

v3.3.1.900

Summary Of Refranchisings, Franchisee Development And Acquisitions (Tables)	4 Months Ended
	Jan. 17, 2016
Summary Of Refranchisings, Franchisee Development And Acquisitions [Abstract]
Number Of Restaurants Sold And Developed By Franchisees And Related Gains And Fees Recognized	The following table summarizes the number of restaurants as of the end of each period:   January 17, 2016   January 18, 2015 Jack in the Box:       Company-operated 413   431 Franchise 1,840   1,822 Total system 2,253   2,253 Qdoba:       Company-operated 330   311 Franchise 344   330 Total system 674   641 The following is a summary of the number of restaurants sold to franchisees, number of restaurants developed by franchisees, and the related gains and fees recognized (dollars in thousands):     Sixteen Weeks Ended     January 17, 2016   January 18, 2015 Restaurants sold to Jack in the Box franchisees   1   1 New restaurants opened by franchisees:         Jack in the Box   5   6 Qdoba   6   6           Initial franchise fees   $ 385   $ 375           Proceeds from the sale of company-operated restaurants (1)   $ 1,021   $ 1,174 Net assets sold (primarily property and equipment)   (193 )   (489 ) Goodwill related to the sale of company-operated restaurants   (10 )   (16 ) Other   —   181 Gains on the sale of company-operated restaurants   $ 818   $ 850

v3.3.1.900

Fair Value Measurements (Tables)	4 Months Ended
	Jan. 17, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Assets And Liabilities Measured At Fair Value On Recurring Basis	The following table presents the financial assets and liabilities measured at fair value on a recurring basis (in thousands):   Total         Quoted Prices in Active Markets for Identical Assets (3) (Level 1)   Significant Other Observable Inputs (3) (Level 2)   Significant Unobservable Inputs (3) (Level 3) Fair value measurements as of January 17, 2016:               Non-qualified deferred compensation plan (1) $ (34,347 )   $ (34,347 )   $ —   $ — Interest rate swaps (Note 5) (2)  (36,367 )   —   (36,367 )   — Total liabilities at fair value $ (70,714 )   $ (34,347 )   $ (36,367 )   $ — Fair value measurements as of September 27, 2015:               Non-qualified deferred compensation plan (1) $ (35,003 )   $ (35,003 )   $ —   $ — Interest rate swaps (Note 5) (2)  (26,374 )   —   (26,374 )   — Total liabilities at fair value $ (61,377 )   $ (35,003 )   $ (26,374 )   $ —   ____________________________ (1) We maintain an unfunded defined contribution plan for key executives and other members of management. The fair value of this obligation is based on the closing market prices of the participants’ elected investments. (2) We entered into interest rate swaps to reduce our exposure to rising interest rates on our variable debt. The fair values of our interest rate swaps are based upon Level 2 inputs which include valuation models as reported by our counterparties. The key inputs for the valuation models are quoted market prices, interest rates and forward yield curves. (3) We did not have any transfers in or out of Level 1, 2 or 3.

v3.3.1.900

Derivative Instruments (Tables)	4 Months Ended
	Jan. 17, 2016
Derivative Instruments and Hedges, Assets [Abstract]
Derivative Instruments Outstanding	The following derivative instruments were outstanding as of the end of each period (in thousands):   Balance Sheet Location   January 17, 2016   September 27, 2015     Fair Value   Fair Value Derivatives designated as hedging instruments:           Interest rate swaps (Note 4) Accrued liabilities   $ (3,231 )   $ (3,379 ) Interest rate swaps (Note 4) Other long-term liabilities   (33,136 )   (22,995 ) Total derivatives     $ (36,367 )   $ (26,374 )
Gains Or Losses Recognized On Interest Rate Swap Derivative Instruments	The following is a summary of the OCI activity related to our interest rate swap derivative instruments (in thousands):   Location of Loss in Income   Sixteen Weeks Ended     January 17, 2016   January 18, 2015 Loss recognized in OCI N/A   $ (11,437 )   $ (6,758 ) Loss reclassified from accumulated OCI into net earnings Interest expense, net   $ 1,444   $ 627 Amounts reclassified from accumulated OCI into interest expense represent payments made to the counterparties for the effective portions of the interest rate swaps. During the periods presented, our interest rate swaps had no hedge ineffectiveness.

v3.3.1.900

Impairment, Disposition Of Property And Equipment, Restaurant Closing Costs And Restructuring (Tables)	4 Months Ended
	Jan. 17, 2016
Restructuring and Related Activities [Abstract]
Impairment Disposition Of Property And Equipment, Restaurant Closing Costs And Resturcturing	IMPAIRMENT AND OTHER CHARGES, NET Impairment and other charges, net in the accompanying condensed consolidated statements of earnings is comprised of the following (in thousands):   Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Losses on the disposition of property and equipment, net $ 651   $ 621 Costs of closed restaurants (primarily lease obligations) and other 560   786 Accelerated depreciation 446   752 Restaurant impairment charges —   14 Restructuring costs —   7   $ 1,657   $ 2,180 Restaurant closing costs — Costs of closed restaurants primarily consist of future lease commitments and expected ancillary costs, net of anticipated sublease rentals. Accrued restaurant closing costs, included in accrued liabilities and other long-term liabilities, changed as follows in 2016 (in thousands): Balance as of September 27, 2015   $ 9,707 Additions   208 Adjustments (1)   677 Cash payments   (1,688 ) Balance as of January 17, 2016   $ 8,904 ___________________________ (1) Adjustments relate primarily to revisions of certain sublease and cost assumptions. The estimates we make related to our future lease obligations, primarily the sublease income we anticipate, are subject to a high degree of judgment and may differ from actual sublease income due to changes in economic conditions, desirability of the sites and other factors. Accelerated depreciation — When a long-lived asset will be replaced or otherwise disposed of prior to the end of its estimated useful life, the useful life of the asset is adjusted based on the estimated disposal date and accelerated depreciation is recognized. In 2016, accelerated depreciation primarily relates to expenses at our Jack in the Box company restaurants for exterior facility enhancements as well as the replacement of technology equipment, and in 2015, charges primarily relate to the replacement of technology equipment and costs associated with Jack in the Box restaurant closures. Restaurant impairment charges — When events and circumstances indicate that our long-lived assets might be impaired and their carrying amount is greater than the undiscounted cash flows we expect to generate from such assets, we recognize an impairment loss as the amount by which the carrying value exceeds the fair value of the assets. Impairment charges in 2015 were not material.
Restructuring Cost and Reserve [Line Items]
Schedule of Impairment and Disposal Costs Included in Impairment and Other Charges	Impairment and other charges, net in the accompanying condensed consolidated statements of earnings is comprised of the following (in thousands):   Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Losses on the disposition of property and equipment, net $ 651   $ 621 Costs of closed restaurants (primarily lease obligations) and other 560   786 Accelerated depreciation 446   752 Restaurant impairment charges —   14 Restructuring costs —   7   $ 1,657   $ 2,180
Restructuring and Related Costs [Table Text Block]	Our liability for lease commitments related to the 2013 Qdoba Closures is included in accrued liabilities and other long-term liabilities and changed as follows in 2016 (in thousands): Balance as of September 27, 2015 $ 4,256 Adjustments 1,006 Cash payments (1,179 ) Balance as of January 17, 2016 $ 4,083 Adjustments primarily relate to revisions to certain sublease and cost assumptions due to changes in market conditions.
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restaurant Closing Costs	Accrued restaurant closing costs, included in accrued liabilities and other long-term liabilities, changed as follows in 2016 (in thousands): Balance as of September 27, 2015   $ 9,707 Additions   208 Adjustments (1)   677 Cash payments   (1,688 ) Balance as of January 17, 2016   $ 8,904

v3.3.1.900

Retirement Plans (Tables)	4 Months Ended
	Jan. 17, 2016
Pension and Other Postretirement Benefit Expense [Abstract]
Components Of Net Periodic Benefit Cost	The components of net periodic benefit cost in each period were as follows (in thousands):     Sixteen Weeks Ended    January 17, 2016   January 18, 2015 Defined benefit pension plans:       Service cost $ 1,616   $ 2,544 Interest cost 7,440   6,983 Expected return on plan assets (6,694 )   (7,161 ) Actuarial loss (1) 1,257   2,896 Amortization of unrecognized prior service costs (1) 74   83 Net periodic benefit cost $ 3,693   $ 5,345 Postretirement healthcare plans:       Interest cost $ 389   $ 368 Actuarial loss (1) 67   56 Net periodic benefit cost $ 456   $ 424
Schedule Of Defined Benefit Plan Contribution	Future cash flows — Our policy is to fund our plans at or above the minimum required by law. As of January 1, 2015, the date of our last actuarial funding valuation, there was no minimum contribution funding requirement. Details regarding 2016 contributions are as follows (in thousands):   Defined Benefit Pension Plans   Postretirement Healthcare Plans Net year-to-date contributions $ 1,496   $ 387 Remaining estimated net contributions during fiscal 2016 $ 23,000   $ 900

v3.3.1.900

Share-Based Compensation (Tables)	4 Months Ended
	Jan. 17, 2016
Share-based Compensation [Abstract]
Schedule Of Share-Based Awards Granted	In 2016, we granted the following shares related to our share-based compensation awards: Stock options 99,923 Performance share awards 32,970 Nonvested stock units 130,952
Components Of Share-Based Compensation Expense	The components of share-based compensation expense recognized in each period are as follows (in thousands):   Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Stock options $ 975   $ 999 Performance share awards 1,271   1,081 Nonvested stock awards 27   61 Nonvested stock units 1,815   1,744 Total share-based compensation expense $ 4,088   $ 3,885

v3.3.1.900

Average Shares Outstanding (Tables)	4 Months Ended
	Jan. 17, 2016
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Reconciliation Of Basic Weighted-Average Shares Outstanding To Diluted Weighted-Average Shares Outstanding	The following table reconciles basic weighted-average shares outstanding to diluted weighted-average shares outstanding (in thousands):   Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Weighted-average shares outstanding – basic 35,458   38,640 Effect of potentially dilutive securities:       Stock options 176   397 Nonvested stock awards and units 187   198 Performance share awards 125   149 Weighted-average shares outstanding – diluted 35,946   39,384 Excluded from diluted weighted-average shares outstanding:       Antidilutive 149   60 Performance conditions not satisfied at the end of the period —   20

v3.3.1.900

Segment Reporting (Tables)	4 Months Ended
	Jan. 17, 2016
Segment Reporting [Abstract]
Summarized Financial Information Of Reportable Segments	Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Revenues by segment:       Jack in the Box restaurant operations $ 347,583   $ 351,951 Qdoba restaurant operations 123,240   116,670 Consolidated revenues $ 470,823   $ 468,621 Earnings from operations by segment:       Jack in the Box restaurant operations $ 85,690   $ 80,857 Qdoba restaurant operations 8,737   14,676 Shared services and unallocated costs (32,731 )   (33,147 ) Gains on the sale of company-operated restaurants 818   850 Consolidated earnings from operations 62,514   63,236 Interest expense, net 8,175   5,213 Consolidated earnings from continuing operations and before income taxes $ 54,339   $ 58,023 Total depreciation expense by segment:       Jack in the Box restaurant operations $ 20,473   $ 19,615 Qdoba restaurant operations 5,588   5,280 Shared services and unallocated costs 2,225   2,260 Consolidated depreciation expense $ 28,286   $ 27,155
Schedule of Goodwill	The following table provides detail of the change in the balance of goodwill for each of our reportable segments (in thousands):   Jack in the Box   Qdoba   Total Balance at September 27, 2015 $ 48,430   $ 100,597   $ 149,027 Disposals (15 )   —   (15 ) Balance at January 17, 2016 $ 48,415   $ 100,597   $ 149,012

v3.3.1.900

Supplemental Consolidated Cash Flow Information (Tables)	4 Months Ended
	Jan. 17, 2016
Supplemental Cash Flow Information [Abstract]
Additional Information Related To Cash Flows	Sixteen Weeks Ended   January 17, 2016   January 18, 2015 Cash paid during the year for:       Interest, net of amounts capitalized $ 8,378   $ 5,115 Income tax payments $ 16,012   $ 152 Non-cash transactions:       Equipment capital lease obligations incurred $ 271   $ — Decrease in accrued treasury stock repurchases $ —   $ 3,112 Increase in dividends accrued or converted to common stock equivalents $ 53   $ 35 Decrease in obligations for purchases of property and equipment $ 6,025   $ 7,829

v3.3.1.900

Supplemental Consolidated Balance Sheet Information (Tables)	4 Months Ended
	Jan. 17, 2016
Supplemental Balance Sheet Disclosures [Line Items]
Schedule Of Supplemental Consolidated Balance Sheet Information	January 17, 2016   September 27, 2015 Accounts and other receivables, net:       Trade $ 35,386   $ 36,990 Notes receivable 3,610   1,726 Other 14,726   10,814 Allowance for doubtful accounts (2,049 )   (1,555 )   $ 51,673   $ 47,975 Prepaid expenses:       Prepaid income taxes $ 6,653   $ 7,645 Prepaid rent 5,552   318 Other 8,160   8,277   $ 20,365   $ 16,240 Other assets, net:       Deferred tax assets $ 120,749   $ 118,184 Company-owned life insurance policies 97,047   99,513 Deferred rent receivable 46,194   45,330 Other 18,063   40,941   $ 282,053   $ 303,968 Accrued liabilities:       Payroll and related taxes $ 41,403   $ 56,223 Insurance 35,326   35,370 Advertising 14,600   20,692 Sales and property taxes 8,275   11,574 Deferred franchise fees 1,187   1,198 Gift card liability 5,835   4,608 Other 37,228   40,910   $ 143,854   $ 170,575 Other long-term liabilities:       Pension plans $ 181,342   $ 180,476 Straight-line rent accrual 46,863   46,807 Other 131,060   142,775   $ 359,265   $ 370,058

v3.3.1.900

Basis Of Presentation (Details) $ in Millions	4 Months Ended
	Jan. 17, 2016 restaurant	Sep. 27, 2015 USD ($)	Jan. 18, 2015 restaurant
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Current Deferred Tax Assets Reclassified to Noncurrent | $		$ 40.0
Document Period End Date	Jan. 17, 2016
Document Fiscal Year Focus	2016
Jack in the box brand restaurant operations [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of restaurants	2,253		2,253
Qdoba brand restaurant operations [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of restaurants	674		641
Entity Operated Units [Member] | Jack in the box brand restaurant operations [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of restaurants	413		431
Entity Operated Units [Member] | Qdoba brand restaurant operations [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of restaurants	330		311
Franchised Units [Member] | Jack in the box brand restaurant operations [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of restaurants	1,840		1,822
Franchised Units [Member] | Qdoba brand restaurant operations [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of restaurants	344		330
2013 Qdoba Closures [Member]
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items]
Number of restaurants	62

v3.3.1.900

Basis Of Presentation Presentation Details (Details)	Jan. 17, 2016 restaurant
2013 Qdoba Closures [Member]
Number of restaurants closed [Line Items]
Number of Restaurants	62

v3.3.1.900

Discontinued Operations (Details) $ in Thousands	4 Months Ended
	Jan. 17, 2016 USD ($) center	Jan. 18, 2015 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Document Fiscal Year Focus	2016
Document Period End Date	Jan. 17, 2016
2013 Qdoba Closures [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Unfavorable lease commitment adjustments	$ (1,006)	$ (1,799)
Bad debt expense related to a subtenant	(124)	0
Ongoing facility related costs	(38)	(61)
Broker commissions	0	(112)
Operating loss before income tax benefit	(1,168)	$ (1,972)
Restructuring Reserve [Roll Forward]
Balance at beginning of period	4,256
Adjustments	1,006
Cash payments	(1,179)
Balance at end of period	$ 4,083
Discontinued Operation - Distribution Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Distribution Centers | center	1
Restructuring Reserve [Roll Forward]
Balance at beginning of period	$ 200
Balance at end of period	$ 200

v3.3.1.900

Summary Of Refranchisings, Franchisee Development And Acquisitions (Number Of Restaurants Sold And Developed By Franchisees And Related Gains And Fees Recognized) (Details) $ in Thousands		4 Months Ended
		Jan. 17, 2016 USD ($) restaurant	Jan. 18, 2015 USD ($) restaurant
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Initial franchise fees		$ 385	$ 375
Proceeds from Divestiture of Businesses	[1]	1,021	1,174
Net assets sold (primarily property and equipment)		(193)	(489)
Goodwill related to the sale of company-operated restaurants		(10)	(16)
Disposal Group Not Discontinued Operation Other Gain Loss On Disposal		0	181
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal		818	850
Proceeds From Extension Of Franchise And Lease Agreements		$ 1,000	$ 100
Significant Changes, Franchises Purchased During Period | restaurant			0
Jack in the box brand restaurant operations [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
New restaurants opened by franchisees | restaurant		5	6
Significant Changes, Franchises Sold | restaurant		1	1
Significant Changes, Franchises Purchased During Period | restaurant		1
Qdoba brand restaurant operations [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
New restaurants opened by franchisees | restaurant		6	6
[1] Amounts in 2016 and 2015 include additional proceeds recognized upon the extension of the underlying franchise and lease agreements related to restaurants sold in a prior year of $1.0 million and $0.1 million, respectively.

v3.3.1.900

Summary Of Refranchisings, Franchisee Development And Acquisitions (Purchase Price Allocations On Franchise Acquisitions) (Details) - restaurant	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Significant Changes, Franchises Purchased During Period		0
Jack in the box brand restaurant operations [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Significant Changes, Franchises Purchased During Period	1

v3.3.1.900

Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) - USD ($) $ in Thousands		Jan. 17, 2016	Sep. 27, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value		$ (70,714)	$ (61,377)
Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[1]	(36,367)	(26,374)
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[2]	(34,347)	(35,003)
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[1],[2]	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[2]	(36,367)	(26,374)
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[1],[2]	(36,367)	(26,374)
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[2]	0	0
Fair Value, Inputs, Level 3 [Member] | Interest Rate Swaps [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[1],[2]	0	0
Non Qualified Deferred Compensation Plan [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[3]	(34,347)	(35,003)
Non Qualified Deferred Compensation Plan [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[2],[3]	(34,347)	(35,003)
Non Qualified Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[2],[3]	0	0
Non Qualified Deferred Compensation Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	[2],[3]	$ 0	$ 0
[1] We entered into interest rate swaps to reduce our exposure to rising interest rates on our variable debt. The fair values of our interest rate swaps are based upon Level 2 inputs which include valuation models as reported by our counterparties. The key inputs for the valuation models are quoted market prices, interest rates and forward yield curves. [2] We did not have any transfers in or out of Level 1, 2 or 3. [3] We maintain an unfunded defined contribution plan for key executives and other members of management. The fair value of this obligation is based on the closing market prices of the participants’ elected investments.

v3.3.1.900

Derivative Instruments (Narrative) (Details)	4 Months Ended
	Jan. 17, 2016 USD ($)	Jan. 18, 2015 USD ($)	Jun. 15, 2015 USD ($) agreements	Apr. 14, 2014 USD ($) agreements
Derivative [Line Items]
Interest rate derivatives held | agreements			11	9
Interest rate swaps hedge ineffectiveness		$ 0
Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative, Notional Amount				$ 300,000,000
Interest rate swaps hedge ineffectiveness	$ 0
October 2015 through October 2018 | Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative, Notional Amount			$ 200,000,000
October 2018 through October 2022 | Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative, Notional Amount			$ 500,000,000

v3.3.1.900

Derivative Instruments (Derivative Instruments Outstanding) (Details) - Designated as Hedging Instrument [Member] - Interest Rate Swaps [Member] - USD ($) $ in Thousands	Jan. 17, 2016	Sep. 27, 2015
Derivatives, Fair Value [Line Items]
Total liabilities at fair value	$ (36,367)	$ (26,374)
Accrued Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liabilities at fair value	(3,231)	(3,379)
Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Total liabilities at fair value	$ (33,136)	$ (22,995)

v3.3.1.900

Derivative Instruments (Gains Or Losses Recognized On Interest Rate Swap Derivative Instruments) (Details) - USD ($) $ in Thousands	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI	$ (11,437)	$ (6,758)
Loss reclassified from accumulated OCI into income	1,444	627
Interest Rate Swaps [Member] | Derivatives Designated As Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI	(11,437)	(6,758)
Interest Rate Swaps [Member] | Interest Expense, Net [Member] | Derivatives Designated As Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss reclassified from accumulated OCI into income	$ 1,444	$ 627

v3.3.1.900

Impairment, Disposition Of Property And Equipment, Restaurant Closing Costs And Restructuring (Details) - USD ($) $ in Thousands		4 Months Ended
		Jan. 17, 2016	Jan. 18, 2015
Restructuring Cost and Reserve [Line Items]
Document Period End Date		Jan. 17, 2016
accelerated depreciation		$ 446	$ 752
Asset Impairment Charges		0	14
Losses (gains) on the disposition of property and equipment, net		651	621
Business Exit Costs		560	786
Restructuring Costs		0	7
Impairment and other charges, net		1,657	$ 2,180
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		208
Restructuring Reserve [Roll Forward]
Balance at beginning of period		9,707
Cash payments		(1,688)
Restructuring costs	[1]	677
Balance at end of period		$ 8,904
[1] Adjustments relate primarily to revisions of certain sublease and cost assumptions. The estimates we make related to our future lease obligations, primarily the sublease income we anticipate, are subject to a high degree of judgment and may differ from actual sublease income due to changes in economic conditions, desirability of the sites and other factors.

v3.3.1.900

Income Taxes (Details) - USD ($)	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Operating Loss Carryforwards [Line Items]
Gain (Loss) on Interest Rate Cash Flow Hedge Ineffectiveness		$ 0
Effective tax rates	37.60%	36.10%

v3.3.1.900

Retirement Plans (Components Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands		4 Months Ended
		Jan. 17, 2016	Jan. 18, 2015
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 1,616	$ 2,544
Interest cost		7,440	6,983
Expected return on plan assets		(6,694)	(7,161)
Actuarial loss	[1]	1,257	2,896
Amortization of unrecognized prior service cost	[1]	74	83
Net periodic benefit cost		3,693	5,345
Postretirement Healthcare Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost		389	368
Actuarial loss	[1]	67	56
Net periodic benefit cost		$ 456	$ 424
[1] (1) Amounts were reclassified from accumulated OCI into net earnings as a component of selling, general and administrative expenses.

v3.3.1.900

Retirement Plans (Schedule Of Future Cash Flows) (Details) - USD ($) $ in Thousands	4 Months Ended	9 Months Ended
	Jan. 17, 2016	Oct. 02, 2016	Jan. 01, 2015
Defined Benefit Plan Disclosure [Line Items]
Minimum required contribution for retirement plans			$ 0
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net year-to-date contributions	$ 1,496
Postretirement Healthcare Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net year-to-date contributions	$ 387
Scenario, Forecast [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year		$ 23,000
Scenario, Forecast [Member] | Postretirement Healthcare Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year		$ 900

v3.3.1.900

Share-Based Compensation (Schedule Of Share-Based Awards Granted) (Details) - USD ($) $ in Thousands	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation	$ 4,088	$ 3,885
Allocated Share-based Compensation Expense	4,088	3,885
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 975	999
Shares	99,923
Performance-Vested Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 1,271	1,081
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	32,970
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 27	61
Nonvested Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 1,815	$ 1,744
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	130,952

v3.3.1.900

Share-Based Compensation (Components Of Share-Based Compensation Expense) (Details) - USD ($) $ in Thousands	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 4,088	$ 3,885
Allocated Share-based Compensation Expense	4,088	3,885
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	975	999
Performance-Vested Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	1,271	1,081
Nonvested Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	27	61
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 1,815	$ 1,744

v3.3.1.900

Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Equity, Class of Treasury Stock [Line Items]
Treasury Stock, Shares, Acquired	1.3
Repurchases of common stock	$ 100,000	$ 104,669
Common Stock, Dividends, Per Share, Declared	$ 0.30	$ 0.20
Dividends, Common Stock	$ 10,600
Expiration: November 2017 [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock, remaining authorized amount	100,000
Treasury Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Treasury Stock, Value, Acquired, Cost Method	$ 100,000

v3.3.1.900

Average Shares Outstanding (Reconciliation Of Basic Weighted-Average Shares Outstanding To Diluted Weighted-Average Shares Outstanding) (Details) - shares shares in Thousands	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Average Shares Outstanding [Line Items]
Weighted-average shares outstanding - basic	35,458	38,640
Weighted-average shares outstanding - diluted	35,946	39,384
Excluded from diluted weighted-average shares outstanding, Antidilutive	149	60
Excluded from diluted weighted-average shares outstanding, Performance conditions not satisfied at the end of the period	0	20
Stock Options [Member]
Average Shares Outstanding [Line Items]
Effect of potentially dilutive securities	176	397
Nonvested Stock Awards [Member]
Average Shares Outstanding [Line Items]
Effect of potentially dilutive securities	187	198
Performance-Vested Stock Awards [Member]
Average Shares Outstanding [Line Items]
Effect of potentially dilutive securities	125	149

v3.3.1.900

Contingencies and Legal Matters (Details) $ in Millions	4 Months Ended
	Jan. 17, 2016 USD ($)
Legal Matters and Contingencies [Abstract]
Loss Contingency, Damages Sought, Value	$ 45.0
General liability and workers' comp estimated claims to be paid by insurance providers	25.8
Legal Judgment Paid by our Insurance Providers	$ 21.7

v3.3.1.900

Segment Reporting (Summarized Financial Information Of Reportable Segments) (Details) - USD ($) $ in Thousands	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015	Sep. 27, 2015
Segment Reporting Information [Line Items]
Consolidated revenues	$ 470,823	$ 468,621
Consolidated earnings from operations	62,514	63,236
Interest Income (Expense), Net	8,175	5,213
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	54,339	58,023
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	818	850
Consolidated depreciation expense	28,286	27,155
Consolidated goodwill	149,012		$ 149,027
Total goodwill disposals	(15)
Qdoba brand restaurant operations [Member]
Segment Reporting Information [Line Items]
Consolidated revenues	123,240	116,670
Consolidated earnings from operations	8,737	14,676
Consolidated depreciation expense	5,588	5,280
Consolidated goodwill	100,597		100,597
Total goodwill disposals	0
Jack in the box brand restaurant operations [Member]
Segment Reporting Information [Line Items]
Consolidated revenues	347,583	351,951
Consolidated earnings from operations	85,690	80,857
Consolidated depreciation expense	20,473	19,615
Consolidated goodwill	48,415		$ 48,430
Total goodwill disposals	(15)
Shared services and unallocated costs [Member]
Segment Reporting Information [Line Items]
Consolidated earnings from operations	(32,731)	(33,147)
Consolidated depreciation expense	$ 2,225	$ 2,260

v3.3.1.900

Supplemental Consolidated Cash Flow Information (Additional Information Related To Cash Flows) (Details) - USD ($) $ in Thousands	4 Months Ended
	Jan. 17, 2016	Jan. 18, 2015
Supplemental Cash Flow Information [Abstract]
Interest, net of amounts capitalized	$ 8,378	$ 5,115
Income tax payments	16,012	152
Equipment capital lease obligations incurred	271	0
Decrease in accrued treasury stock repurchases	0	3,112
Increase in dividends accrued or converted to common stock equivalents	53	35
Decrease in obligations for purchases of property and equipment	$ 6,025	$ 7,829

v3.3.1.900

Supplemental Consolidated Balance Sheet Information (Details) - USD ($) $ in Thousands	Jan. 17, 2016	Sep. 27, 2015
Supplemental Balance Sheet Disclosures [Line Items]
Accounts Receivable, Gross, Current	$ 35,386	$ 36,990
Notes, Loans and Financing Receivable, Gross, Current	3,610	1,726
Other Receivables, Gross, Current	14,726	10,814
Allowance for Doubtful Accounts Receivable, Current	2,049	1,555
Receivables, Net, Current	51,673	47,975
Prepaid Taxes	6,653	7,645
Prepaid Rent	5,552	318
Other Prepaid Expense, Current	8,160	8,277
Prepaid Expense, Current	20,365	16,240
Company-owned life insurance policies	97,047	99,513
Deferred Rent Receivables, Net	46,194	45,330
Deferred tax asset	120,749	118,184
Other	18,063	40,941
Other assets, net	282,053	303,968
Payroll and related taxes	41,403	56,223
Accrued Advertising, Current	14,600	20,692
Gift Card Liability, Current	5,835	4,608
Sales and Excise Tax Payable, Current	8,275	11,574
Deferred franchise fees, Accrued liabilities	1,187	1,198
Insurance	35,326	35,370
Other	37,228	40,910
Accrued liabilities	143,854	170,575
Pension plans	181,342	180,476
Deferred Rent Credit, Noncurrent	46,863	46,807
Other	131,060	142,775
Other Liabilities, Noncurrent	$ 359,265	$ 370,058

v3.3.1.900

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	4 Months Ended
	Apr. 10, 2016	Jan. 17, 2016	Jan. 18, 2015	Feb. 12, 2016
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Declared		$ 0.30	$ 0.20
Subsequent Event [Member]
Subsequent Event [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.30
Stock Repurchase Program, Authorized Amount				$ 100.0