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. 27, 2014	$ 1,250,405	$ 27,900	$ 0	$ 1,718,662	$ (134,433)	$ (410,296)	$ 48,572
Increase (Decrease) in Shareholders' Equity
Net earnings	60,946			58,612			2,334
Other comprehensive income (loss)	(38,768)				(37,075)		(1,693)
Cash dividends declared	(17,603)			(17,603)			0
Dividends to noncontrolling interests	(1,669)						(1,669)
Purchase of treasury shares	(121,020)					(121,020)
Stock plan exercises	(10,490)					(10,490)
Stock options exercised	9,454		(8,860)	2,863		15,451
Tax benefit from stock option exercises	1,394		1,394
Stock option expense	2,653		2,653
Stock awards	5,291		4,813			478
Ending balance at Jun. 27, 2015	1,140,593	27,900	0	1,762,534	(171,508)	(525,877)	47,544
Beginning balance at Dec. 26, 2015	965,211	27,900	0	1,729,679	(267,218)	(571,920)	46,770
Increase (Decrease) in Shareholders' Equity
Net earnings	77,613			74,995			2,618
Other comprehensive income (loss)	255				(1,241)		1,496
Cash dividends declared	(17,027)			(17,027)			0
Dividends to noncontrolling interests	(1,923)						(1,923)
Purchase of treasury shares	(28,621)					(28,621)
Stock plan exercises	(1,453)					(1,453)
Stock options exercised	5,975		(4,064)	2,473		7,566
Stock option expense	2,959		2,959
Stock awards	2,191		1,242			949
Ending balance at Jun. 25, 2016	$ 994,171	$ 27,900	$ 0	$ 1,790,120	$ (268,459)	$ (593,479)	$ 38,089