Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Summary of Significant Accounting Policies

Schedule of estimated useful lives of the related assets

Asset Classification	Estimated Useful Life
Land, buildings and equipment (under lease)		Lesser of the lease term or estimated useful life of the asset
Machinery and equipment		3 to 10 years

Schedule of components of net income per share

	Year ended December 31,
	2020		2019		2018
	(in thousands, except per share data)
Net income available to common stockholders	$	49,982	$	17,034	$	45,885
Weighted average common shares outstanding used in computing basic income per share		33,257		32,559		32,286
Incremental options and RSUs		871		1,269		1,716
Weighted average common shares used in computing diluted net income per share		34,128		33,828		34,002
Net income per share
Basic	$	1.50	$	0.52	$	1.42
Diluted	$	1.46	$	0.50	$	1.35

Schedule of changes in accumulated other comprehensive loss, net of tax

	Foreign		Defined benefit
	currency		pension plan		Total
	(in thousands)
Balance at December 31, 2019	$	518	$	(776)	$	(258)
Other comprehensive income and pension reclassification		3,427		266		3,693
Balance at December 31, 2020	$	3,945	$	(510)	$	3,435