Stockholders' equity (Tables)

9 Months Ended

Sep. 30, 2021

Stockholders' Equity Note [Abstract]

Schedule of accumulated other comprehensive loss

The components of accumulated other comprehensive income (loss), net of related taxes, were as follows (in thousands):

	Foreign Currency Translation Adjustments		Defined Benefit Pension Plan Adjustment		Total Accumulated Other Comprehensive Income (Loss)
Balance as of December 31, 2020	$	1,951	$	(216)	$	1,735
Other comprehensive loss, net of taxes of zero	(555)		—		(555)
Balances at September 30, 2021	$	1,396	$	(216)	$	1,180