v3.26.1
Taxes on Income (Loss) - Effective Income Tax Rate Reconciliation (After ASU Adoption) (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Amount      
U.S. federal statutory income tax rate $ 9,196    
State and local income taxes, net of federal income tax effect 4,562    
Effects of changes in tax laws or rates enacted in the period 0    
Effect of cross-border tax laws (93)    
Research and development tax credits (8,727)    
Investment energy tax credits (2,647)    
Other tax credits (224)    
Goodwill impairment 7,350    
Compensation with Sec 162(m) limitation 2,999    
Meals and Entertainment 597    
Other nondeductible items (398)    
Changes in unrecognized tax benefits 1,877    
Income tax provision (benefit) $ 8,468 $ 96,481 $ 25,294
Percent      
U.S. federal statutory income tax rate 21.00% 21.00% 21.00%
State and local income taxes, net of federal income tax effect 10.40% 111.30% (6.10%)
Valuation allowance   734.80% (25.00%)
Other adjustments   13.60% (1.30%)
Other foreign jurisdictions   (2.60%) 0.70%
Effects of changes in tax laws or rates enacted in the period 0.00%    
Effect of cross-border tax laws (0.20%)    
Research and development tax credits (19.90%) 4.50% 1.60%
Investment energy tax credits (6.00%)    
Other tax credits (0.50%)    
Goodwill impairment 16.80% 0.00% (5.10%)
Compensation with Sec 162(m) limitation 6.80%    
Meals and Entertainment 1.40%    
Other nondeductible items (1.10%)    
Changes in unrecognized tax benefits 4.30% 5.60% (1.50%)
Effective income tax rate 19.30% 906.60% (15.10%)
United Kingdom      
Amount      
Withholding taxes $ 1,020    
Valuation allowance 1,515    
Other adjustments $ 122    
Percent      
Withholding taxes 2.30%    
Valuation allowance 3.50%    
Other adjustments 0.30%    
Australia      
Amount      
Valuation allowance $ (2,352)    
Other adjustments $ 52    
Percent      
Valuation allowance (5.40%)    
Other adjustments 0.10%    
Singapore      
Amount      
Other adjustments $ 387    
Non-taxable interest income $ (1,023)    
Percent      
Other adjustments 0.90%    
Non-taxable interest income (2.30%)    
Mexico      
Amount      
Valuation allowance $ (615)    
Other adjustments $ 424    
Percent      
Valuation allowance (1.40%)    
Other adjustments 1.00%    
Other      
Amount      
Withholding taxes $ 947    
Other foreign jurisdictions $ (125)    
Percent      
Withholding taxes 2.20%    
Other foreign jurisdictions (0.30%)    
United States      
Amount      
Valuation allowance $ (5,551)    
Other adjustments $ (825)    
Percent      
Valuation allowance (12.70%)    
Other adjustments (1.90%)