Other Liabilities - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Other Liabilities Disclosure [Abstract]
Customer deposits and accrued rebates	$ 2,138	$ 3,365
Dividends payable	5,179	5,260
Accrued litigation, claims and professional fees	768	460
Current portion of environmental reserves	1,435	1,229
Other accrued expenses	5,119	6,387
Other current liabilities, Total	$ 14,639	$ 16,701