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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, 2022
Mar. 31, 2021
Mar. 31, 2020
Provision Benefit For Income Taxes [Line Items]      
Tax benefit (provision) at federal statutory rate $ 3,455 $ (5,457) $ (300)
State tax provision, net of federal benefit (653) (5,067) (1,093)
Tax credits, net of valuation allowance 27,052 24,272 25,153
Non-deductible compensation (5,771) (5,728) (7,150)
Non-deductible transaction costs (1,361)    
Non-deductible meals and entertainment (337) (386) (1,075)
Stock-based compensation (7,569) (9,901) 780
Foreign effective tax rate differential, net of valuation allowance (6,201) (3,046) (5,707)
Unremitted subsidiary gains (1,565) (1,682) (2,742)
Change to indefinite reinvestment assertion (EBI) 8,071    
Other (1,423) (86) (504)
Total benefit from (provision for) income taxes 14,237 (9,441) 7,915
United States [Member]      
Provision Benefit For Income Taxes [Line Items]      
Change in effective tax rate     567
State [Member]      
Provision Benefit For Income Taxes [Line Items]      
Change in effective tax rate $ 539 $ (2,360) $ (14)