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Long Term Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Jan. 29, 2019
Debt Instrument [Line Items]      
Long-term Debt and Lease Obligation, Including Current Maturities $ 684,656 $ 753,636  
Current portion of long-term debt 12,249 18,415  
Financing leases 564 587  
Long-term debt 672,407 735,221  
Revolving Line of Credit [Member]      
Debt Instrument [Line Items]      
Total long-term debt 140,000 207,000  
Term Loan Facility [Member]      
Debt Instrument [Line Items]      
Total long-term debt 226,196 240,145  
Unamortized Debt Issuance Expense 1,373 1,668  
Convertible Notes Payable [Member]      
Debt Instrument [Line Items]      
Convertible Debt 317,896 305,904  
Unamortized Debt Issuance Expense 3,700 5,475  
Debt Instrument, Unamortized Discount $ 23,404 $ 33,620  
2.625 Percent Convertible Notes Due 2024 [Member] | Convertible Notes Payable [Member]      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage     2.625%