Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (4,173)	$ 12,843
Other comprehensive income, before tax:
Change in unrealized gains and losses on derivatives	403	23
Change in unrealized gains and losses on available-for-sale investments	0	15
Other comprehensive income, before tax	403	38
Tax provision related to derivatives	(53)	(6)
Tax provision related to available-for-sale investments	0	(3)
Other comprehensive income, net of tax	350	29
Comprehensive income (loss)	$ (3,823)	$ 12,872