CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Retained earnings		Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interest in consolidated subsidiaries
Beginning balance at Dec. 29, 2018	$ 1,175,738	$ 27,900	$ 0	$ 2,067,811	[1]	$ (303,185)	$ (692,549)	$ 75,761
Increase (Decrease) in Shareholders' Equity
Net earnings	37,078			36,104				974
Other comprehensive income (loss)	4,580					4,445		135
Cash dividends declared	(8,213)			(8,213)
Dividends to noncontrolling interests	(838)							(838)
Purchase of noncontrolling interest	(23,082)							(23,082)
Purchase of treasury shares, shares acquired	(9,421)						(9,421)
Stock plan exercises, shares acquired	(747)						(747)
Stock options exercised	1,174		(2,667)	2,460			1,381
Stock option expense	728		728
Stock awards	2,942		1,939				1,003
Ending balance at Mar. 30, 2019	1,171,053	27,900	0	2,089,276	[1]	(298,740)	(700,333)	52,950
Beginning balance at Dec. 28, 2019	1,189,745	27,900	0	2,173,802	[1]	(313,422)	(743,942)	45,407
Increase (Decrease) in Shareholders' Equity
Net earnings	42,721			42,929				(208)
Other comprehensive income (loss)	(33,941)					(34,446)		505
Cash dividends declared	(9,625)			(9,625)
Dividends to noncontrolling interests	(5,342)							(5,342)
Addition of noncontrolling interest	1,600							1,600
Purchase of noncontrolling interest	(57,929)		0	38,686				(19,243)
Purchase of treasury shares, shares acquired	(20,481)						(20,481)
Stock plan exercises, shares acquired	(3)						(3)
Stock options exercised	60		(3,011)	2,909			162
Stock option expense	611		611
Stock awards	2,714		2,400				314
Ending balance at Mar. 28, 2020	$ 1,110,130	$ 27,900	$ 0	$ 2,171,329		$ (347,868)	$ (763,950)	$ 22,719

[1] The retained earnings balance has been revised from the amounts previously reported as a result of the change in inventory valuation method from     LIFO to FIFO. Refer to Note 1 for additional information.