Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2020

Payables And Accruals [Abstract]

Summary of Accrued Expenses

Accrued expenses consisted of the following at December 31, 2020 and 2019 (in thousands):

	2020		2019
Salaries, wages, payroll taxes and benefits	$	37,627	$	57,615
Workers’ compensation liability		70,847		81,112
Property, sales, use and other taxes		10,666		22,404
Insurance, other than workers’ compensation		8,462		9,218
Accrued interest payable		11,325		12,021
Accrued restructuring expenses		14,310		—
Other		21,767		37,480
Accrued liabilities	$	175,004	$	219,850