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Income Taxes - Reconciliation of Benefit from (Provision for) Income Taxes to Amount Computed by Applying Statutory Federal Income Tax Rate to (Loss) Income before Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Provision Benefit For Income Taxes [Line Items]      
Tax (provision) benefit at federal statutory rate $ 250,728 $ 34,047 $ 28,964
State tax provision, net of federal benefit 28,621 202 1,330
Tax credits 28,574 23,925 25,994
Non-deductible compensation (5,240) (3,096) (5,771)
Non-deductible transaction costs (18,911) (167) (1,361)
Non-deductible meals and entertainment (1,077) (693) (311)
Stock-based compensation (12,182) (12,032) (7,402)
Base Erosion and Anti-Abuse Tax (BEAT)   (8,610)  
Foreign effective tax rate differential, net of valuation allowance 6,199 (5,769) (6,201)
Unremitted subsidiary gains (1,586) (887) (1,565)
Change to indefinite reinvestment assertion (EBI)     8,071
Other (2,725) (3,196) (1,423)
Total (provision for) benefit from income taxes 139,474 (49,418) 36,517
United States [Member]      
Provision Benefit For Income Taxes [Line Items]      
Change in valuation allowances (105,968)    
State [Member]      
Provision Benefit For Income Taxes [Line Items]      
Change in valuation allowances (27,251) (73,600) (4,347)
Change in effective tax rate $ 292 $ 458 $ 539