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Long Term Debt (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Long-term Debt and Lease Obligation, Including Current Maturities $ 786,201 $ 768,807
Finance Lease, Liability 734 836
Current portion of long-term debt 13,571 13,596
Long-term debt 772,630 755,211
Line of Credit [Member]    
Debt Instrument [Line Items]    
Long-term Debt 238,000 220,000
Term Loan Facility [Member]    
Debt Instrument [Line Items]    
Long-term Debt 250,322 253,535
Unamortized Debt Issuance Expense 1,428 1,528
Convertible Notes Payable [Member]    
Debt Instrument [Line Items]    
Convertible Debt 297,145 294,436
Debt Instrument, Unamortized Discount 41,048 43,312
Unamortized Debt Issuance Expense $ 6,807 $ 7,252