Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2021

Payables and Accruals [Abstract]

Schedule of Accrued liabilities

Accrued liabilities consisted of the following at December 31 (in thousands):

	December 31, 2021		December 31, 2020
Accrued salaries, benefits and bonus	$	62,425	$	36,892
Accrued professional, consulting and lobbying fees		7,152		3,055
Accrued warranty expense		2,822		769
Accrued income and other taxes		3,736		3,848
Accrued inventory in transit		9,945		4,597
Other accrued expenses		17,627		10,682
Accrued liabilities	$	103,707	$	59,843