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Long Term Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Long-term Debt and Lease Obligation, Including Current Maturities $ 745,396 $ 753,636
Finance Lease, Liability 566 587
Current portion of long-term debt 20,076 18,415
Long-term debt 725,320 735,221
Line of Credit [Member]    
Debt Instrument [Line Items]    
Long-term Debt 199,000 207,000
Term Loan Facility [Member]    
Debt Instrument [Line Items]    
Long-term Debt 236,980 240,145
Unamortized Debt Issuance Expense 1,520 1,668
Convertible Notes Payable [Member]    
Debt Instrument [Line Items]    
Convertible Debt 308,850 305,904
Debt Instrument, Unamortized Discount 31,117 33,620
Unamortized Debt Issuance Expense $ 5,031 $ 5,475