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Debt - Summary of Balances for Long-term Debt and Finance Lease Obligations (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Disclosure [Abstract]    
Revolving credit facility $ 519,000 $ 498,000
Finance lease obligations 22,630 24,927
Total debt and finance lease obligations 541,630 522,927
Current portion 2,471 2,296
Noncurrent portion 539,159 520,631
Deferred financing costs, net 4,300 1,355
Noncurrent portion, net of deferred financing costs $ 534,859 $ 519,276