Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2019

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued liabilities consisted of the following at September 30, 2019 and December 31, 2018 (in thousands):

	September 30, 2019		December 31, 2018
Accrued salaries, benefits and bonus	$	17,058	$	19,063
Accrued professional, consulting and lobbying fees	5,002		4,894
Accrued warranty expense	1,071		898
Accrued income and other taxes	5,143		4,167
Other accrued liabilities	7,471		12,070
Accrued liabilities	$	35,745	$	41,092