sold as of September 30, 2019, which is included in cash provided by investing activities in our Condensed Consolidated Statements of Cash Flows.
Our financial condition remains strong with working capital of $130.6 million and a current ratio of 1.2 to 1 at March 31, 2020. We expect that for our current operations, cash on hand, cash flows from operations and our unused lines of credit will be adequate to meet our liquidity requirements for the foreseeable future. Our cash is invested primarily in highly liquid bank deposits and government instruments in the U.S., the U.K., New Zealand and Australia.
Future repatriations of foreign earnings will generally be exempt from U.S. tax. We will continue to monitor our intentions to repatriate foreign earnings and provide applicable deferred taxes and withholding taxes that would be due upon repatriation of the undistributed foreign earnings.
Recent Accounting Pronouncements
See “Recent Accounting Pronouncements” in Note 1 of the Condensed Consolidated Financial Statements in Part I, Item 1 of this Quarterly Report on Form 10-Q, which is incorporated herein by reference.
Critical Accounting Policies, Estimates and Judgments
Our financial statements are prepared in accordance with GAAP. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. We continually evaluate our estimates and judgments, the most critical of which are those related to revenue recognition, income taxes, valuation of goodwill, purchased intangibles, accounting for business combinations and pension costs. We base our estimates and judgments on historical experience and other factors that we believe to be reasonable under the circumstances. Materially different results can occur as circumstances change and additional information becomes known.
Besides the estimates identified above that are considered critical, we make many other accounting estimates in preparing our financial statements and related disclosures. All estimates, whether or not deemed critical, affect reported amounts of assets, liabilities, revenues and expenses, as well as disclosures of contingent assets and liabilities. These estimates and judgments are also based on historical experience and other factors that are believed to be reasonable under the circumstances. Materially different results can occur as circumstances change and additional information becomes known, even for estimates and judgments that are not deemed critical.
There have been no significant changes to the critical accounting policies disclosed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 of our Annual Report on Form 10-K for fiscal 2019.
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS
Statements contained in this Quarterly Report on Form 10-Q that are not statements of historical fact should be considered forward-looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Any statements about our expectations, beliefs, plans, objectives, assumptions, future events or our future financial or operating performance, including those concerning new programs and growth in the markets in which we do business, increases in demand for our products and for fully integrated systems, retention of existing contracts and receipt of new contracts, the development of new products, systems and services, expansion of our automated payment and fare collection systems and services, maintenance of long-term relationships with our existing customers, expansion of our service offerings and customer base for services, maintenance of a diversified business mix, expansion of our international footprint, strategic acquisitions, the uncertainty regarding the scope and impact of COVID-19, U.S. and foreign government funding, supplies of raw materials and purchased parts, cash needs, financial condition, liquidity, prospects, and the trends that may affect us or the industries in which we operate, are not historical and may be forward-looking.
These statements are often, but not always, made through the use of words or phrases such as “may,” “will,” “anticipate,” “estimate,” “plan,” “project,” “continuing,” “ongoing,” “expect,” “believe,” “intend,” “predict,” “potential,” “opportunity” and similar words or phrases or the negatives of these words or phrases. These forward-