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Long-Term Debt - Schedule of Net Debt Issuance Costs (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]    
Amortizable debt issuance costs $ 8,751 $ 6,921
Accumulated amortization (6,184) (5,738)
Net debt issuance costs $ 2,567 $ 1,183