Basis of Presentation	6 Months Ended
Basis of Presentation	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”) and should be read in conjunction with the information contained in the Company's Annual Report on Form 10-K for the year ended March 31, 2023. The interim period unaudited condensed consolidated financial statements are presented as described below. Certain information and disclosures normally required for annual financial statements have been condensed or omitted pursuant to GAAP and SEC rules and regulations. In the opinion of management, all adjustments considered necessary for fair presentation of the results of the interim periods presented have been included. The Company’s fiscal year ends on March 31 and, unless otherwise noted, references to fiscal year or fiscal are for fiscal years ended March 31. The results of operations for the six months ended September 30, 2023 are not necessarily indicative of results to be expected for the full fiscal year. The condensed consolidated financial statements and notes of the Company include its subsidiaries, and other entities over which the Company has a controlling financial interest or where the Company is a primary beneficiary. Certain amounts reported in the Company's prior fiscal year condensed consolidated financial statements have been reclassified to conform to the current fiscal year presentation. Investments in Variable Interest Entities and Other Investments The Company invests in certain companies that advance or develop new technologies applicable to its business. Each investment is evaluated for consolidation under the variable interest entities model and/or the voting interest model. The results of these investments are not material to the unaudited condensed and consolidated financial statements for the periods presented. The Company uses the equity method to account for investments in entities that it does not control if it is otherwise able to exert significant influence over the entities' operating and financial policies. Equity investments in entities over which the Company does not have the ability to exercise significant influence and whose securities do not have a readily determinable fair value are accounted for under the measurement alternative. As of September 30, 2023 and March 31, 2023, respectively, the total of equity and other investments related to unconsolidated entities included in other long term assets of the Company’s condensed consolidated balance sheet were $32.9 million and $23.1 million. Accounting Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions 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 revenue and expenses during the reporting periods. Areas of the financial statements where estimates may have the most significant effect include the provision for claimed indirect costs, valuation and expected lives of tangible and intangible assets, impairment of long-lived assets, accrued liabilities, revenue recognition, including the accrual of indirect costs, bonus and other incentive compensation, stock-based compensation, reserves for uncertain tax positions and valuation allowances on deferred tax assets, provisions for income taxes, postretirement obligations, collectability of receivables, and loss accruals for litigation. Actual results experienced by the Company may differ materially from management's estimates. Recently Adopted Accounting Pronouncements In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“Topic 848”). The guidance is intended to provide relief for entities impacted by reference rate reform. Topic 848 contains provisions and optional accounting expedients designed to simplify requirements around the designation of hedging relationships, probability assessments of hedged forecasted transactions, and accounting for modifications of contracts that refer to the London Interbank Offered Rate (“LIBOR”) or other rates affected by reference rate reform. The guidance is elective and is effective on the date of issuance. Topic 848 is applied prospectively to contract modifications and as of the effective date for existing and new eligible hedging relationships. During the first quarter of fiscal 2024, the Company modified its interest rate swap agreements to transition from LIBOR-indexed to term SOFR-indexed periodic swap payments to align with interest payments in connection with its term SOFR-indexed debt. As such, the Company elected the optional expedients under Topic 848 which allows the cash flow hedge to continue being recognized under hedge accounting without de-designation upon a change in critical terms affected by the reference rate reform. The adoption of this guidance did not have a material impact on the condensed consolidated financial statements and disclosures. Recent Accounting Pronouncements Not Yet Adopted Accounting and reporting pronouncements effective after September 30, 2023 and issued through the filing date are not expected to have a material impact on the Company's condensed consolidated financial statements.