Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Earnings Per Share
Net income (loss)		$ (82,157)	$ 10,956	$ (138,683)	$ 24,923
Shares used in computing basic earnings per share (in shares)		32,124	31,614	32,018	31,786
Effect of dilutive securities:
Convertible debt and stock-based awards (in shares)		0	1,312	0	1,553
Shares used in computing diluted earnings per share (in shares)		32,124	32,926	32,018	33,339
Earnings (loss) per share:
Basic (in dollars per share)		$ (2.56)	$ 0.35	$ (4.33)	$ 0.78
Diluted (in dollars per share)		$ (2.56)	$ 0.33	$ (4.33)	$ 0.75
Shares attributable to dilutive effect of conversion of debt securities		300	900	300	1,100
Convertible notes 2025
Earnings (loss) per share:
Repayment of convertible senior notes	$ 535,000
Number of shares of common stock issued in connection with redemption of convertible senior notes (in shares)	900