Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid In Capital [Member]	(Accumulated Deficit) Retained Earnings [Member]	(Accumulated Deficit) Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 30, 2018	$ 589,196		$ 124	$ 657,140	$ (69,202)		$ 1,134
Beginning Balance, Shares at Dec. 30, 2018			124,581,190
Net income	91,735				91,735
Other comprehensive loss	(5,713)						(5,713)
Issuance of shares under stock plans	4,124		$ 1	4,123
Issuance of shares under stock plans, Shares			743,959
Repurchase and retirement of common stock	$ (163,310)		$ (7)		(163,303)
Repurchase and retirement of common stock, Shares	(7,302,878)		(7,302,878)
Share-based compensation	$ 4,191			4,191
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Ending Balance at Jun. 30, 2019	$ 531,649	$ 11,426	$ 118	665,454	(129,344)	$ 11,426	(4,579)
Ending Balance, Shares at Jun. 30, 2019			118,022,271
Beginning Balance at Mar. 31, 2019	556,521	(9,893)	$ 120	661,254	(103,371)	(9,893)	(1,482)
Beginning Balance, Shares at Mar. 31, 2019			120,239,636
Net income	35,343				35,343
Other comprehensive loss	(3,097)						(3,097)
Issuance of shares under stock plans	2,459			2,459
Issuance of shares under stock plans, Shares			194,747
Repurchase and retirement of common stock	$ (51,425)		$ (2)		(51,423)
Repurchase and retirement of common stock, Shares	(2,412,112)		(2,412,112)
Share-based compensation	$ 1,741			1,741
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Ending Balance at Jun. 30, 2019	$ 531,649	$ 11,426	$ 118	665,454	(129,344)	$ 11,426	(4,579)
Ending Balance, Shares at Jun. 30, 2019			118,022,271
Beginning Balance at Dec. 29, 2019	581,952		$ 117	670,966	(84,449)		(4,682)
Beginning Balance, Shares at Dec. 29, 2019			117,452,918
Net income	158,812				158,812
Other comprehensive loss	(5,557)						(5,557)
Issuance of shares under stock plans	1,343			1,343
Issuance of shares under stock plans, Shares			491,532
Share-based compensation	6,727			6,727
Ending Balance at Jun. 28, 2020	743,277		$ 117	679,036	74,363		(10,239)
Ending Balance, Shares at Jun. 28, 2020			117,944,450
Beginning Balance at Mar. 29, 2020	670,722		$ 117	673,366	7,361		(10,122)
Beginning Balance, Shares at Mar. 29, 2020			117,786,608
Net income	67,002				67,002
Other comprehensive loss	(117)						(117)
Issuance of shares under stock plans	1,343			1,343
Issuance of shares under stock plans, Shares			157,842
Share-based compensation	4,327			4,327
Ending Balance at Jun. 28, 2020	$ 743,277		$ 117	$ 679,036	$ 74,363		$ (10,239)
Ending Balance, Shares at Jun. 28, 2020			117,944,450