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INCOME TAXES (Tables)
 12 Months Ended
Mar. 31, 2024
Income Tax Disclosure [Abstract]  
Schedule of (Loss) Income from Continuing Operations Before Income Taxes Components of (Loss) income before income taxes are as follows:
 Fiscal Year Ended March 31,
202420232022
Domestic$(2,081.8)$(937.0)$357.5 
Foreign(1,621.0)(401.1)107.9 
(Loss) income before income taxes$(3,702.8)$(1,338.1)$465.4 
Schedule of Provision for Current and Deferred Income Taxes
Provision for (benefit from) current and deferred income taxes consists of the following:
 Fiscal Year Ended March 31,
202420232022
Current:   
U.S. federal$23.0 $70.2 $12.0 
U.S. state and local12.4 3.3 (0.6)
Foreign107.5 98.0 24.1 
Total current income taxes142.9 171.5 35.5 
Deferred:   
U.S. federal24.6 (175.4)34.8 
U.S. state and local(22.6)(31.4)2.9 
Foreign(103.5)(178.1)(25.8)
Total deferred income taxes(101.5)(384.9)11.9 
Provision for (benefit from) income taxes$41.4 $(213.4)$47.4 
Schedule of Reconciliation of Effective Tax Rate to the U.S. Statutory Federal Income Tax Rate A reconciliation of our effective tax rate to the U.S. statutory federal income tax rate is as follows:
 Fiscal Year Ended March 31,
202420232022
U.S. federal statutory rate21.0 %21.0 %21.0 %
State and local taxes, net of U.S. federal benefit0.6 %2.0 %1.2 %
Foreign tax rate differential(1)
0.2 %(0.3)%(1.8)%
Foreign earnings(2)
(1.5)%(1.3)%(2.3)%
Tax credits(3)
1.7 %5.7 %(6.6)%
Excess tax benefits from stock-based compensation(0.1)%(0.5)%(3.1)%
Earn-out adjustments0.1 %(0.4)%2.2 %
Valuation allowance—domestic(4)
(9.1)%(6.3)%(0.1)%
Valuation allowance—foreign(4)
(1.1)%(0.1)%0.4 %
Nondeductible compensation(0.1)%(0.9)%0.4 %
Global intangible low-taxed income(1.0)%(3.1)%0.1 %
Foreign-derived intangible income0.5 %1.8 %(0.9)%
Change in reserves0.9 %(0.1)%(0.9)%
Goodwill impairment(12.8)%— %— %
Other(5)
(0.4)%(1.6)%0.6 %
Effective tax rate(1.1)%15.9 %10.2 %
(1) The foreign rate differentials in relation to foreign earnings, for all periods presented, are primarily driven by changes in the mix of our foreign earnings and the difference between the foreign and U.S. income tax rates.
(2) Fiscal year ended March 31, 2024 include tax expense of $29.2 from a decrease in the deferred tax assets related to Switzerland's Federal Act on Tax Reform and AVH Financing ("TRAF") enacted on January 1, 2020. Fiscal years ended March 31, 2023, and March 31, 2022, include tax benefit of $5.6 and $11.6, respectively, from the effects of an increase in the deferred tax asset.
(3) Tax benefits were recorded for fiscal years ended March 31, 2024, 2023, and 2022 attributable to certain tax credits related to software development activities.
(4) The change in domestic and foreign valuation allowance includes an increase in our valuation allowance on deferred tax assets as a result of a determination in the fiscal year ended March 31, 2024 that it was more likely than not that such deferred tax assets would not be realized.
(5) For the fiscal year ended March 31, 2023, includes nondeductible expense of $8.2 relating to loss on the redemption of convertible debt
Schedule of Effects of Temporary Differences that Gave Rise to Deferred Tax Assets and Liabilities The effects of temporary differences that gave rise to our deferred tax assets and liabilities were as follows:
 March 31,
20242023
Deferred tax assets:  
Capitalized development costs, software and depreciation$365.1 $157.8 
Tax credit carryforward174.4 159.5 
Equity-based compensation143.0 109.8 
Tax basis step up related to TRAF131.1 79.1 
Operating lease liabilities 101.9 90.6 
Accrued compensation expense72.6 96.6 
Net operating loss carryforward63.2 50.3 
Other2.7 26.0 
Total deferred tax assets1,054.0 769.7 
Less: Valuation allowance(799.1)(338.2)
Net deferred tax assets$254.9 $431.5 
Deferred tax liabilities: 
Intangible amortization$(513.2)$(841.0)
Right-of-use assets(75.7)(64.7)
Deferred revenue(5.0)(15.0)
Total deferred tax liabilities(593.9)(920.7)
Net deferred tax liability(1)
$(339.0)$(489.2)
(1) As of March 31, 2024, $1.9 is included in Deferred tax assets and $340.9 is included in Deferred tax liabilities, net. As of March 31, 2023, $44.8 is included in Deferred tax assets and $534.0 is included in Deferred tax liabilities, net.
Schedule of Aggregate Changes to the Liability for Gross Uncertain Tax Positions, Excluding Interest and Penalties The aggregate changes to the liability for gross uncertain tax positions, excluding interest and penalties, were as follows:
 Fiscal Year Ended March 31,
202420232022
Balance, beginning of period$274.7 $164.8 $158.3 
Additions:   
Current year tax positions41.4 26.5 10.3 
Prior year tax positions(1)
2.3 109.7 4.2 
Reduction of prior year tax positions— (26.3)— 
Lapse of statute of limitations(76.2)— (8.0)
Other0.6 — — 
Balance, end of period$242.8 $274.7 $164.8 
(1) For the fiscal year ended March 31, 2023, the increase in prior year tax positions of $109.7 related to purchase accounting for the Zynga acquisition.