Other Deferred Items and Liabilities - Summary of Other Deferred Items and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Continuing operations:
Self-insured liability	$ 14,644	$ 12,981
Self-insured excess liability	10,463	10,463
Accrued compensation	9,402	8,514
Deferred rent	4,076	5,271
Foreign deferred tax liability	2,264	2,264
Accrued restructuring	1,903	1,858
Other	2,655	1,300
Total continuing operations	45,407	42,651
Discontinued operations:
Self-insured liability	3,011	3,748
Environmental remediation liabilities	1,716	3,091
Accrued income taxes		1,045
Other	126	199
Total discontinued operations	4,853	8,083
Total other deferred items and liabilities	$ 50,260	$ 50,734