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	31,507			30,739			768
Other comprehensive income (loss)	(57,866)				(55,771)		(2,095)
Cash dividends declared	(8,889)			(8,889)			0
Dividends to noncontrolling interests	(1,290)						(1,290)
Purchase of treasury shares	(72,900)					(72,900)
Stock plan exercises	(2,156)					(2,156)
Stock options exercised	1,760		(2,106)	740		3,126
Tax benefit from stock option exercises	345		345
Stock option expense	1,350		1,350
Stock awards	1,598		411			1,187
Ending balance at Mar. 28, 2015	1,143,864	27,900	0	1,741,252	(190,204)	(481,039)	45,955
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	34,171			32,969			1,202
Other comprehensive income (loss)	2,532				1,407		1,125
Cash dividends declared	(8,527)			(8,527)			0
Purchase of treasury shares	(16,939)					(16,939)
Stock plan exercises	(219)					(219)
Stock options exercised	1,289		(1,983)	1,961		1,311
Tax benefit from stock option exercises	(66)		(66)
Stock option expense	1,491		1,491
Stock awards	1,208		558			650
Ending balance at Mar. 26, 2016	$ 980,151	$ 27,900	$ 0	$ 1,756,082	$ (265,811)	$ (587,117)	$ 49,097