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. 30, 2017	$ 1,151,795	$ 27,900	$ 0	$ 1,954,344	$ (279,022)	$ (590,386)	$ 38,959
Increase (Decrease) in Shareholders' Equity
Net earnings	82,151			76,689			5,462
Other comprehensive income (loss)	(40,744)				(43,532)		2,788
Cash dividends declared	(25,204)			(25,204)
Dividends to noncontrolling interests	(5,737)						(5,737)
Addition of noncontrolling interest	40,569						40,569
Purchase of noncontrolling interest	(5,510)		0				(5,510)
Purchase of treasury shares, shares acquired	(86,919)					(86,919)
Stock plan exercises, shares acquired	(1,914)					(1,914)
Stock options exercised	6,376		(7,172)	5,900		7,648
Stock option expense	3,138		3,138
Stock awards	4,938		4,034			904
Ending balance at Sep. 29, 2018	1,133,748	27,900	0	2,022,538	(322,554)	(670,667)	76,531
Beginning balance at Jun. 30, 2018	1,149,824	27,900	0	2,023,919	(311,166)	(628,487)	37,658
Increase (Decrease) in Shareholders' Equity
Net earnings	6,991			4,448			2,543
Other comprehensive income (loss)	(11,542)				(11,388)		(154)
Cash dividends declared	(8,311)			(8,311)
Dividends to noncontrolling interests	(885)						(885)
Addition of noncontrolling interest	37,369						37,369
Purchase of treasury shares, shares acquired	(42,920)					(42,920)
Stock plan exercises, shares acquired	(145)					(145)
Stock options exercised	665		(2,713)	2,482		896
Stock option expense	987		987
Stock awards	1,715		1,726			(11)
Ending balance at Sep. 29, 2018	1,133,748	27,900	0	2,022,538	(322,554)	(670,667)	76,531
Beginning balance at Dec. 29, 2018	1,135,523	27,900	0	2,027,596	(303,185)	(692,549)	75,761
Increase (Decrease) in Shareholders' Equity
Net earnings	122,064			118,022			4,042
Other comprehensive income (loss)	(14,184)				(13,532)		(652)
Cash dividends declared	(24,424)			(24,424)
Dividends to noncontrolling interests	(6,549)						(6,549)
Purchase of noncontrolling interest	(27,845)		277				(28,122)
Purchase of treasury shares, shares acquired	(55,172)					(55,172)
Stock plan exercises, shares acquired	(1,456)					(1,456)
Stock options exercised	3,211		(7,756)	7,535		3,432
Stock option expense	2,056		2,056
Stock awards	6,833		5,423			1,410
Ending balance at Sep. 28, 2019	1,131,171	27,900	0	2,119,843	(316,717)	(744,335)	44,480
Beginning balance at Jun. 29, 2019	1,127,014	27,900	0	2,085,594	(303,072)	(728,680)	45,272
Increase (Decrease) in Shareholders' Equity
Net earnings	42,263			40,144			2,119
Other comprehensive income (loss)	(14,466)				(13,645)		(821)
Cash dividends declared	(8,085)			(8,085)
Dividends to noncontrolling interests	(2,090)						(2,090)
Purchase of treasury shares, shares acquired	(16,822)					(16,822)
Stock plan exercises, shares acquired	(629)					(629)
Stock options exercised	1,467		(2,514)	2,190		1,791
Stock option expense	600		600
Stock awards	1,919		1,914			5
Ending balance at Sep. 28, 2019	$ 1,131,171	$ 27,900	$ 0	$ 2,119,843	$ (316,717)	$ (744,335)	$ 44,480