Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (Unaudited)

	Quarter Ended
	March 29, 2020		June 28, 2020		September 27, 2020		December 31, 2020
	(In thousands, except per share amounts)
Revenue	$	167,235	$	169,097	$	251,073	$	223,615
Gross margin	126,035		118,777		191,332		168,455
Restructuring charges	—		14,798		251		875
Intangible asset impairment charges	—		19,571		—		—
Operating income (loss)	20,951		(6,142)		96,635		59,085
Net income (loss)	$	20,477	$	(1,142)	$	87,506	$	69,345
Basic net income (loss) per share	$	0.12	$	(0.01)	$	0.50	$	0.40
Diluted net income (loss) per share	$	0.12	$	(0.01)	$	0.49	$	0.39

	Quarter Ended
	March 31, 2019		June 30, 2019		September 29, 2019		December 31, 2019
	(In thousands, except per share amounts)
Revenue	$	173,484	$	199,047	$	183,325	$	169,769
Gross margin	127,200		148,080		135,693		124,898
Operating income	30,147		51,756		43,092		17,607
Net income	$	33,104	$	48,749	$	41,685	$	80,327
Basic net income per share	$	0.19	$	0.28	$	0.24	$	0.47
Diluted net income per share	$	0.19	$	0.28	$	0.24	$	0.46