Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2022		31,430,632
Beginning balance at Dec. 31, 2022	$ 1,042,631	$ 314	$ 88,750	$ 956,870	$ (3,303)
Increase (Decrease) in Stockholders' Equity
Exercise of stock options (in shares)		17,489
Exercise of stock options	1,167		1,167
Compensation expense under incentive stock plans	8,336		8,336
Purchase and cancellation of common stock (in shares)		(11,850)
Purchase and cancellation of common stock	(1,008)		(21)	(987)
Issuance of common stock under incentive stock plans, net of cancellations (in shares)		76,747
Issuance of common stock under incentive stock plans, net of cancellations	1,004	$ 1	1,003
Other stock-related activity (in shares)		(25,524)
Other stock-related activity	(2,483)		(1,893)	(590)
Change in foreign currency translation adjustment	(529)				(529)
Net income	78,975			78,975
Ending balance (in shares) at Sep. 30, 2023		31,487,494
Ending balance at Sep. 30, 2023	1,128,093	$ 315	97,342	1,034,268	(3,832)
Beginning balance (in shares) at Jul. 01, 2023		31,488,164
Beginning balance at Jul. 01, 2023	1,086,072	$ 315	94,452	993,923	(2,618)
Increase (Decrease) in Stockholders' Equity
Exercise of stock options (in shares)		460
Exercise of stock options	37		37
Compensation expense under incentive stock plans	2,901		2,901
Purchase and cancellation of common stock (in shares)		(2,010)
Purchase and cancellation of common stock	(180)		(3)	(177)
Issuance of common stock under incentive stock plans, net of cancellations (in shares)		1,419
Other stock-related activity (in shares)		(539)
Other stock-related activity	(45)		(45)	0
Change in foreign currency translation adjustment	(1,214)				(1,214)
Net income	40,522			40,522
Ending balance (in shares) at Sep. 30, 2023		31,487,494
Ending balance at Sep. 30, 2023	$ 1,128,093	$ 315	97,342	1,034,268	(3,832)
Beginning balance (in shares) at Dec. 31, 2023	31,299,770	31,299,770
Beginning balance at Dec. 31, 2023	$ 1,168,203	$ 313	101,045	1,069,435	(2,590)
Increase (Decrease) in Stockholders' Equity
Exercise of stock options (in shares)		24,358
Exercise of stock options	1,766		1,766
Compensation expense under incentive stock plans	10,547		10,547
Purchase and cancellation of common stock (in shares)		(867,385)
Purchase and cancellation of common stock	(79,139)	$ (9)	(1,561)	(77,569)
Issuance of common stock under incentive stock plans, net of cancellations (in shares)		83,055
Issuance of common stock under incentive stock plans, net of cancellations	961	$ 1	960
Other stock-related activity (in shares)		(23,039)
Other stock-related activity	(2,260)		(2,162)	(98)
Change in foreign currency translation adjustment	(967)				(967)
Net income	$ 135,491			135,491
Ending balance (in shares) at Sep. 28, 2024	30,516,759	30,516,759
Ending balance at Sep. 28, 2024	$ 1,234,602	$ 305	110,595	1,127,259	(3,557)
Beginning balance (in shares) at Jun. 29, 2024		30,765,672
Beginning balance at Jun. 29, 2024	1,201,320	$ 308	106,714	1,098,506	(4,208)
Increase (Decrease) in Stockholders' Equity
Exercise of stock options (in shares)		15,269
Exercise of stock options	1,207		1,207
Compensation expense under incentive stock plans	3,767		3,767
Purchase and cancellation of common stock (in shares)		(276,063)
Purchase and cancellation of common stock	(26,999)	$ (3)	(497)	(26,499)
Issuance of common stock under incentive stock plans, net of cancellations (in shares)		17,177
Other stock-related activity (in shares)		(5,296)
Other stock-related activity	(597)		(596)	(1)
Change in foreign currency translation adjustment	651				651
Net income	$ 55,253			55,253
Ending balance (in shares) at Sep. 28, 2024	30,516,759	30,516,759
Ending balance at Sep. 28, 2024	$ 1,234,602	$ 305	$ 110,595	$ 1,127,259	$ (3,557)