CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interest in consolidated subsidiaries	Total
Beginning balance at Dec. 28, 2019	$ 27,900	$ 0	$ 2,173,802	$ (313,422)	$ (743,942)	$ 45,407	$ 1,189,745
Increase (Decrease) in Shareholders' Equity
Net earnings			140,693			1,456	142,149
Other comprehensive income (loss)				3,636		1,972	5,608
Cash dividends declared			(38,393)				(38,393)
Dividends to noncontrolling interests						(5,642)	(5,642)
Addition of noncontrolling interest						5,125	5,125
Purchase of noncontrolling interest			(31,067)			(22,544)	(53,611)
Purchase of treasury shares					(56,491)		(56,491)
Stock plan exercises					(14,489)		(14,489)
Stock options exercised		(6,335)			25,296		18,961
Stock option expense		2,628					2,628
Stock awards		4,042			8,204		12,246
Ending balance at Dec. 26, 2020	27,900	335	2,245,035	(309,786)	(781,422)	25,774	1,207,836
Increase (Decrease) in Shareholders' Equity
Net earnings			195,630			2,095	197,725
Other comprehensive income (loss)				46,659		(1,119)	45,540
Cash dividends declared			(42,472)				(42,472)
Purchase of treasury shares					(26,100)		(26,100)
Stock plan exercises					(21,547)		(21,547)
Stock options exercised		(15,357)	(3,886)		43,138		23,895
Stock option expense		2,538					2,538
Stock awards		13,963			12,219		26,182
Ending balance at Dec. 25, 2021	27,900	1,479	2,394,307	(263,127)	(773,712)	26,750	1,413,597
Increase (Decrease) in Shareholders' Equity
Net earnings			250,863			3,388	254,251
Other comprehensive income (loss)				(11,782)		(1,315)	(13,097)
Cash dividends declared			(46,939)				(46,939)
Dividends to noncontrolling interests						(714)	(714)
Addition of noncontrolling interest						41,693	41,693
Purchase of treasury shares					(40,474)		(40,474)
Reduction of noncontrolling interest		1,599				(8,937)	(7,338)
Stock plan exercises					(17,966)		(17,966)
Stock options exercised		(17,754)	(5,192)		39,795		16,849
Stock option expense		3,120					3,120
Stock awards		$ 11,556			27,174		38,730
Ending balance at Dec. 31, 2022	$ 27,900		$ 2,593,039	$ (274,909)	$ (765,183)	$ 60,865	$ 1,641,712