Other Liabilities - Schedule of Other Liabilities (Long-term) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Other Liabilities Disclosure [Abstract]
Lease guarantee contingency		$ 10,724
Environmental reserves	$ 6,760	6,658
Supplemental executive retirement plan liability	1,542	1,776
Pension liability	875	956
Other long-term liabilities	3,756	2,468
Other liabilities (long-term), Total	$ 12,933	$ 22,582