Other Current Liabilities - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Continuing operations:
Accrued sales and use taxes	$ 6,479	$ 1,547
Self-insured liability	5,066	5,715
Accrued employee benefit costs	4,523	2,363
Commissions payable	4,051	903
Accrued interest payable	3,995	3,042
Accrued restructuring	2,076	2,479
Current portion of pension and postretirement liabilities	1,618	1,805
Accrued professional fees	1,516	1,691
Other taxes	2,187	1,872
Other	4,898	5,123
Total continuing operations	36,409	26,540
Discontinued operations:
Self-insured liability	296	347
Environmental remediation liabilities	62	61
Other	94	91
Total discontinued operations	452	499
Total other current liabilities	$ 36,861	$ 27,039