Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Total
Balance, at Dec. 26, 2020	$ 9,949	$ 1,283,737	$ 3,286	$ (150,857)	$ 1,146,115
Balance, shares at Dec. 26, 2020	33,047,807
Balance, treasury shares at Dec. 26, 2020				6,149,364
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		86,234			86,234
Other comprehensive income (loss), net of tax			(683)		(683)
Dividends paid		(25,016)			(25,016)
Balance, at Sep. 25, 2021	$ 9,949	1,344,956	2,603	$ (150,857)	1,206,651
Balance, shares at Sep. 25, 2021	33,047,807
Balance, treasury shares at Sep. 25, 2021				6,149,364
Balance, at Jun. 26, 2021	$ 9,949	1,324,787	2,706	$ (150,857)	1,186,585
Balance, shares at Jun. 26, 2021	33,047,807
Balance, treasury shares at Jun. 26, 2021				6,149,364
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		28,507			28,507
Other comprehensive income (loss), net of tax			(103)		(103)
Dividends paid		(8,339)			(8,339)
Balance, at Sep. 25, 2021	$ 9,949	1,344,956	2,603	$ (150,857)	1,206,651
Balance, shares at Sep. 25, 2021	33,047,807
Balance, treasury shares at Sep. 25, 2021				6,149,364
Balance, at Dec. 25, 2021	$ 9,949	1,358,963	1,687	$ (150,857)	$ 1,219,742
Balance, shares at Dec. 25, 2021	33,047,807				26,898,443
Balance, treasury shares at Dec. 25, 2021				6,149,364
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		96,313			$ 96,313
Other comprehensive income (loss), net of tax			(9,143)		(9,143)
Dividends paid		(25,823)			(25,823)
Balance, at Sep. 24, 2022	$ 9,949	1,429,453	(7,456)	$ (150,857)	$ 1,281,089
Balance, shares at Sep. 24, 2022	33,047,807				26,898,443
Balance, treasury shares at Sep. 24, 2022				6,149,364	6,149,364
Balance, at Jun. 25, 2022	$ 9,949	1,409,403	(5,433)	$ (150,857)	$ 1,263,062
Balance, shares at Jun. 25, 2022	33,047,807
Balance, treasury shares at Jun. 25, 2022				6,149,364
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		28,658			28,658
Other comprehensive income (loss), net of tax			(2,023)		(2,023)
Dividends paid		(8,608)			(8,608)
Balance, at Sep. 24, 2022	$ 9,949	$ 1,429,453	$ (7,456)	$ (150,857)	$ 1,281,089
Balance, shares at Sep. 24, 2022	33,047,807				26,898,443
Balance, treasury shares at Sep. 24, 2022				6,149,364	6,149,364