v3.26.1
INCOME TAX - Effective Income Tax Expense Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Amount      
Income tax at federal statutory rate $ 20,593 $ 4,797 $ 7,216
State and local income taxes, net of federal tax effect (24,006) 3,017 2,032
Effect of cross-border tax laws 89 538 (283)
Research & development tax credit (4,190) (6,030) (3,530)
Changes in valuation allowance (53,836) 13,220 13,346
Nontaxable and nondeductible items      
Stock-based compensation 6,691 4,056 2,013
Nondeductible meals & entertainment 714 588 791
Nondeductible goodwill 0 0 991
Other nondeductible items 700 584 359
Changes in unrecognized tax benefits 6,123 5,483 2,097
Income tax expense (benefit) $ (46,712) $ 25,342 $ 24,270
Percent      
Income tax at federal statutory rate 21.00% 21.00% 21.00%
State and local income taxes, net of federal tax effect (24.50%) 13.20% 5.90%
Effect of cross-border tax laws 0.10% 2.40% (0.80%)
Research & development tax credit (4.30%) (26.40%) (10.30%)
Changes in valuation allowance (54.90%) 57.90% 38.80%
Nontaxable and nondeductible items      
Stock-based compensation 6.80% 17.80% 5.90%
Nondeductible meals & entertainment 0.70% 2.60% 2.30%
Nondeductible goodwill 0 0 0.029
Other nondeductible items 0.80% 2.50% 1.00%
Changes in unrecognized tax benefits 6.30% 24.00% 6.10%
Effective income tax rate reconciliation, percent (47.60%) 111.00% 70.60%
United Kingdom      
Amount      
Foreign tax effects $ 65 $ (530) $ (360)
Percent      
Foreign tax effects 0.10% (2.30%) (1.00%)
China      
Amount      
Foreign tax effects $ (146) $ (203) $ (383)
Percent      
Foreign tax effects (0.20%) (0.90%) (1.10%)
Other      
Amount      
Foreign tax effects $ 491 $ (178) $ (19)
Percent      
Foreign tax effects 0.50% (0.80%) (0.10%)