v3.26.1
Employee Benefit Plans - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Defined Benefit Plan Disclosure [Line Items]      
Accumulated benefit obligation $ 262,600 $ 227,700  
Company's expected contribution to defined benefit pension plans in next fiscal year 8,400    
Expense for defined contribution plans 15,700 13,700 $ 14,400
Fair value of marketable securities 30,500 29,000  
Obligation for deferred compensation plan $ 30,495 $ 29,006  
Deferred Compensation Plan      
Defined Benefit Plan Disclosure [Line Items]      
Percentage of vested salary and incentive compensation deferrals permitted to eligible employees (as a percent) 100.00%    
Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations (as a percent) 33.00%    
Debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations (as a percent) 28.00%    
Real estate funds      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations (as a percent) 28.00%    
Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Target plan asset allocations (as a percent) 4.00%