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Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Credit Agreements    
Total debt $ 669,197 $ 665,660
Unamortized debt issuance costs (3,935) (4,198)
Total debt, net 665,262 661,462
Current portion of long-term debt (65,972) (67,230)
Long-term debt, net of current portion 599,290 594,232
Term Loan    
Credit Agreements    
Total debt 512,875 520,281
Commercial equipment notes    
Credit Agreements    
Total debt 123,254 107,934
Mortgages    
Credit Agreements    
Total debt $ 33,068 $ 37,445