Other Deferred Items and Liabilities - Summary of Other Deferred Items and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Continuing operations:
Foreign deferred tax liability	$ 25,127	$ 32,570
Multi-employer pension plan withdrawal liability	15,970	15,693
Self-insured excess liability	9,982	9,982
Self-insured liability	8,046	8,682
Accrued compensation	4,806	7,485
Accrued restructuring	2,447	2,383
Contract liabilities	623	125
Other	3,487	2,423
Total continuing operations	70,488	79,343
Discontinued operations:
Environmental remediation liabilities	2,186	1,964
Self-insured liability	1,824	2,018
Other	676	382
Total discontinued operations	4,686	4,364
Total other deferred items and liabilities	$ 75,174	$ 83,707