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Debt (Details) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 01, 2023
Dec. 31, 2024
Dec. 31, 2024
Mar. 31, 2024
Line of Credit Facility [Line Items]        
Accounts receivable balance   $ 157,038,000 $ 157,038,000 $ 171,186,000
Current portion of long-term debt and finance lease obligations   50,000,000 50,000,000  
Outstanding balance on finance lease obligation   12,442,000 12,442,000 12,937,000
Current portion of long-term debt and finance lease obligation   722,000 722,000 670,000
Unsecured Lines of Credit        
Line of Credit Facility [Line Items]        
Line of credit facility, maximum borrowing capacity   2,278,000 2,278,000  
Outstanding borrowings   $ 0 $ 0  
Hartland, WI        
Line of Credit Facility [Line Items]        
Finance lease term   23 years 23 years  
Amended and Restated Revolving Credit Facility        
Line of Credit Facility [Line Items]        
Line of credit facility increase in borrowing capacity       75,000,000
Line of credit facility, maximum borrowing capacity       175,000,000
Outstanding borrowings   $ 0 $ 0  
Outstanding letters of credit   15,440,000 15,440,000  
Deferred financing costs gross   4,828,000 4,828,000 4,828,000
Accumulated amortization of deferred financing costs   3,464,000 3,464,000 2,655,000
Amended and Restated Revolving Credit Facility | Standby Letters of Credit        
Line of Credit Facility [Line Items]        
Outstanding letters of credit   15,440,000 15,440,000  
Term Loan B        
Line of Credit Facility [Line Items]        
Debt instrument increase in face amount $ 75,000,000      
Repayments of long-term debt     35,000,000  
Outstanding borrowings   442,560,000 442,560,000  
Periodic payment required     3,732,000  
Current portion of long-term debt and finance lease obligations   4,976,000 4,976,000  
Deferred financing costs gross   7,845,000 7,845,000 7,845,000
Accumulated amortization of deferred financing costs   3,894,000 3,894,000 2,971,000
AR Securitization        
Line of Credit Facility [Line Items]        
Long-term debt   35,000,000 35,000,000 45,000,000
Repayments of long-term debt   10,000,000    
Deferred financing costs gross   536,000 536,000 536,000
Accumulated amortization of deferred financing costs   283,000 283,000 $ 149,000
AR Securitization | UNITED STATES        
Line of Credit Facility [Line Items]        
Accounts receivable balance   73,473,000 73,473,000  
Bank Guarantees | Unsecured Lines of Credit        
Line of Credit Facility [Line Items]        
Line of credit facility, maximum borrowing capacity   12,898,000 12,898,000  
Outstanding borrowings   $ 8,243,000 $ 8,243,000