CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Locker [Member] Noncontrolling interest in consolidated subsidiaries	Locker [Member]	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interest in consolidated subsidiaries	Total
Balance at Dec. 28, 2013			$ 27,900		$ 1,562,670	$ (47,685)	$ (20,860)	$ 22,821	$ 1,544,846
Increase (Decrease) in Shareholders' Equity
Net earnings					119,956			2,459	122,415
Other comprehensive income (loss)						25,481		(755)	24,726
Cash dividends declared					(16,651)				(16,651)
Dividends to noncontrolling interests								(1,340)	(1,340)
Acquisition of DS SM	$ 9,232	$ 9,232
Addition of noncontrolling interest								404	404
Purchase of treasury shares; 989,821 and 490,172 shares acquired for the period ended June 2015 and 2014, respectively							(77,084)		(77,084)
Stock plan exercises; 82,989 and 78,217 shares acquired for the period ended June 2015 and 2014, respectively							(11,984)		(11,984)
Stock options exercised; 119,687 and 158,317 shares issued for the period ended June 2015 and 2014, respectively				$ (7,262)	6,312		12,946		11,996
Tax benefit from stock option exercises				3,576					3,576
Stock option expense				2,525					2,525
Stock awards; 4,846 and 8,822 shares issued for the period ended June 2015 and 2014, respectively				1,161			1,268		2,429
Balance at Jun. 28, 2014			27,900		1,672,287	(22,204)	(95,714)	32,821	1,615,090
Balance at Dec. 27, 2014			27,900		1,718,662	(134,433)	(410,296)	48,572	1,250,405
Increase (Decrease) in Shareholders' Equity
Net earnings					58,612			2,334	60,946
Other comprehensive income (loss)						(37,075)		(1,693)	(38,768)
Cash dividends declared					(17,603)				(17,603)
Dividends to noncontrolling interests								(1,669)	(1,669)
Purchase of treasury shares; 989,821 and 490,172 shares acquired for the period ended June 2015 and 2014, respectively							(121,020)		(121,020)
Stock plan exercises; 82,989 and 78,217 shares acquired for the period ended June 2015 and 2014, respectively							(10,490)		(10,490)
Stock options exercised; 119,687 and 158,317 shares issued for the period ended June 2015 and 2014, respectively				(8,860)	2,863		15,451		9,454
Tax benefit from stock option exercises				1,394					1,394
Stock option expense				2,653					2,653
Stock awards; 4,846 and 8,822 shares issued for the period ended June 2015 and 2014, respectively				$ 4,813			478		5,291
Balance at Jun. 27, 2015			$ 27,900		$ 1,762,534	$ (171,508)	$ (525,877)	$ 47,544	$ 1,140,593