Debt - Schedule of Long-Term Debt (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019	Oct. 31, 2013
Debt Instrument [Line Items]
Total debt	$ 445,957,000	$ 399,579,000
Unamortized debt premium	650,000	770,000
Debt issuance cost	(1,697,000)	(3,232,000)
Less: current maturities	(1,021,000)	(717,000)
Long-term debt	444,936,000	398,862,000
6.25% Senior Notes due October 2021
Debt Instrument [Line Items]
Total debt	$ 389,150,000	400,000,000
Debt stated interest rate	6.25%		6.25%
Other debt
Debt Instrument [Line Items]
Total debt	$ 2,854,000	2,041,000
2017 Credit Facility | Senior secured revolving credit facility
Debt Instrument [Line Items]
Total debt	$ 55,000,000	$ 0