Other Liabilities - Schedule of Other Liabilities (Long-term) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Other Liabilities Disclosure [Abstract]
Lease guarantee obligation	$ 10,323
Environmental reserves	3,877	$ 3,814
Supplemental executive retirement plan liability	2,169	2,416
Pension liability	1,045	1,318
Deferred gain on sale of assets	1,270
Other long-term liabilities	580	688
Other liabilities (long-term), Total	$ 19,264	$ 8,236