Other Liabilities - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Customer deposits and accrued rebates	$ 3,714	$ 2,907
Dividends payable	5,323	5,251
Accrued litigation, claims and professional fees	443	306
Current portion of environmental reserves	1,428	1,433
Other accrued expenses	7,239	8,039
Other current liabilities, Total	$ 18,147	$ 17,936