CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	DS SM	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interest in consolidated subsidiaries	Noncontrolling interest in consolidated subsidiaries DS SM
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	45,333				40,117			5,216
Other comprehensive income (loss)	(137,169)					(132,785)		(4,384)
Cash dividends declared	34,816				34,816
Dividends to noncontrolling interests	(2,634)							(2,634)
Purchase of treasury shares	(168,983)						(168,983)
Stock plan exercises	(13,854)						(13,854)
Stock options exercised	13,075			(12,895)	5,716		20,254
Tax benefit from stock option exercises	1,699			1,699
Stock option expense	5,137			5,137
Stock awards	7,018			6,059			959
Ending 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	178,391				173,232			5,159
Other comprehensive income (loss)	(78,156)					(79,141)		985
Cash dividends declared	33,921				33,921
Dividends to noncontrolling interests	(2,938)							(2,938)
Acquisition		$ (11,009)		(137)					$ (10,872)
Purchase of treasury shares	(53,800)						(53,800)
Stock plan exercises	(2,305)						(2,305)
Stock options exercised	11,153			(7,614)	5,732		13,035
Tax benefit from stock option exercises	0			0
Stock option expense	5,782			5,782
Stock awards	4,178			1,969			2,209
Ending balance at Dec. 31, 2016	982,586		27,900	0	1,874,722	(346,359)	(612,781)	39,104
Increase (Decrease) in Shareholders' Equity
Net earnings	122,319				116,240			6,079
Other comprehensive income (loss)	66,787					67,337		(550)
Cash dividends declared	33,927				33,927
Dividends to noncontrolling interests	(5,674)							(5,674)
Stock plan exercises	(26,161)						(26,161)
Stock options exercised	35,159			(4,666)	(2,691)		42,516
Stock option expense	5,137			5,137
Stock awards	5,569			(471)			6,040
Ending balance at Dec. 30, 2017	$ 1,151,795		$ 27,900	$ 0	$ 1,954,344	$ (279,022)	$ (590,386)	$ 38,959