Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 26, 2020	$ 853,559	$ 322	$ 64,085	$ 789,152
Beginning Balance, Shares at Dec. 26, 2020		32,168,740
Exercise of stock options	316		316
Exercise of stock options, shares		11,614
Compensation expense under Incentive Stock Plan	2,111		2,111
Purchase and cancellation of common stock	(3,974)	$ (1)	(69)	(3,904)
Purchase and cancellation of common stock, Shares		(38,160)
Cancellation of non-vested stock, net of issuances, shares		(17,599)
Other stock-related activity, net of tax	(931)		1,153	(2,084)
Other stock related activity, net of tax, Shares		(9,067)
Net income	32,730			32,730
Ending Balance at Mar. 27, 2021	883,811	$ 321	67,596	815,894
Ending Balance, Shares at Mar. 27, 2021		32,115,528
Beginning Balance at Dec. 25, 2021	$ 932,736	$ 316	77,451	856,409	$ (1,440)
Beginning Balance, Shares at Dec. 25, 2021	31,607,509	31,607,509
Exercise of stock options, shares		2,478
Compensation expense under Incentive Stock Plan	$ 2,152		2,152
Purchase and cancellation of common stock	(10,917)	$ (1)	(200)	(10,716)
Purchase and cancellation of common stock, Shares		(111,114)
Cancellation of non-vested stock, net of issuances	377		377
Cancellation of non-vested stock, net of issuances, shares		(2,511)
Other stock-related activity, net of tax	(1,851)		(874)	(977)
Other stock related activity, net of tax, Shares		(16,446)
Other comprehensive income	1,696				1,696
Net income	35,207			35,207
Ending Balance at Mar. 26, 2022	$ 959,400	$ 315	$ 78,906	$ 879,923	$ 256
Ending Balance, Shares at Mar. 26, 2022	31,479,916	31,479,916