CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interest in consolidated subsidiaries
Balance at Dec. 25, 2010	$ 1,010,127	$ 27,900		$ 850,269	$ 63,645	$ (25,922)	$ 94,235
Increase (Decrease) in Shareholders' Equity
Net earnings	26,873			25,609			1,264
Other comprehensive income	23,482				21,504		1,978
Cash dividends declared	(4,358)			(4,358)
Purchase of 53,847 treasury shares	(4,802)					(4,802)
Stock plan exercises; 69,376 and 165,735 shares acquired for the period ended March 31, 2012 and March 26, 2011, respectively	(18,153)					(18,153)
Stock options exercised; 133,510 and 253,133 shares issued for the period ended 2012 and 2011, respectively	15,993		(3,971)	(3,124)		23,088
Tax benefit from stock option exercises	2,659		2,659
Stock option expense	1,252		1,252
Stock awards; 402 and 2,992 shares issued for the period ended 2012 and 2011	384		60			324
Balance at Mar. 26, 2011	1,053,457	27,900		868,396	85,149	(25,465)	97,477
Balance at Dec. 31, 2011	1,197,911	27,900		1,079,698	64,052	(24,688)	50,949
Increase (Decrease) in Shareholders' Equity
Net earnings	52,588			52,325			263
Other comprehensive income	31,533				26,782		4,751
Cash dividends declared	(4,778)			(4,778)
Dividends to noncontrolling interests	(431)						(431)
Stock plan exercises; 69,376 and 165,735 shares acquired for the period ended March 31, 2012 and March 26, 2011, respectively	(7,747)					(7,747)
Stock options exercised; 133,510 and 253,133 shares issued for the period ended 2012 and 2011, respectively	8,230		(3,605)	3,410		8,425
Tax benefit from stock option exercises	2,134		2,134
Stock option expense	1,245		1,245
Stock awards; 402 and 2,992 shares issued for the period ended 2012 and 2011	318		226			92
Balance at Mar. 31, 2012	$ 1,281,003	$ 27,900	$ 0	$ 1,130,655	$ 90,834	$ (23,918)	$ 55,532