Accrued liabilities (Tables)

6 Months Ended

Jun. 30, 2020

Payables and Accruals [Abstract]

Schedule of accrued liabilities

Accrued liabilities consist of the following (in thousands):

	June 30,		December 31,
	2020		2019
Accrued payroll and employee benefits	$	33,981	$	32,815
Short-term finance leases	16,545		16,542
Short-term operating leases	8,479		8,784
Accrued taxes	12,009		5,354
Warranty	7,419		5,536
Accrued rebates	8,382		9,895
Short-term derivative liability	331		—
Environmental obligation	83		718
Other miscellaneous accrued liabilities	10,205		9,195
Total accrued liabilities	$	97,434	$	88,839