Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Long-term debt:
Finance leases and other debt	$ 1,098	$ 1,087
Unamortized debt issuance costs	0	(235)
Total long-term debt and finance leases	1,098	55,852
Less: Current maturities of long-term debt and finance leases	282	195
Long-term debt	816	55,657
Unsecured senior notes
Long-term debt:
Unsecured senior notes	0	55,000
Revolving credit facility
Short-term financing:
Revolving credit facility	130,000	$ 39,527
Long-term debt:
Unamortized debt issuance costs	$ (1,500)