Accrued Liabilities

6 Months Ended

Jun. 30, 2021

Payables And Accruals [Abstract]

Accrued Liabilities

7. Accrued Liabilities

Accrued liabilities consisted of the following at June 30, 2021 and December 31, 2020 (in thousands):

	June 30, 2021		December 31, 2020
Salaries, wages, payroll taxes and benefits	$	35,316	$	37,627
Workers' compensation liability		62,179		70,847
Property, sales, use and other taxes		18,559		10,666
Insurance, other than workers' compensation		7,427		8,462
Accrued interest payable		10,636		11,325
Accrued restructuring expenses		8,314		14,310
Other		23,864		21,767
Accrued liabilities	$	166,295	$	175,004