Consolidated Statements Of Equity (USD $) In Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]	Total
Beginning Balance at Dec. 27, 2008	$ 323	$ 356,231	$ (19,419)	$ 631,281	$ (142,429)	$ 11,654	$ 837,641
Net Income				95,048		3,631	98,679
Dividends Declared				(22,564)			(22,564)
Issuance of shares of Common Stock for Acquisition	43	150,327					150,370
Stock Options Exercised including income tax benefit and share cancellations	3	5,817					5,820
Share-based Compensation		4,752					4,752
Issuance of Treasury and Common Stock for conversion premium on Convertible Debt redemption	5	(19,424)	19,419
Reversal of unrecognized tax benefits		3,600					3,600
Reversal of tax benefits related to Convertible Debt		10,979					10,979
Distribution to Noncontrolling Interests						(4,468)	(4,468)
Other Comprehensive Income (Loss) (see detail Comprehensive Income Statement)					93,832	1,427	95,259
Ending Balance at Jan. 02, 2010	374	512,282		703,765	(48,597)	12,244	1,180,068
Net Income				149,379		5,305	154,684
Dividends Declared				(25,677)			(25,677)
Issuance of shares of Common Stock for Acquisition	1	6,106					6,107
Stock Options Exercised including income tax benefit and share cancellations	2	4,127					4,129
Share-based Compensation		6,747					6,747
Issuance of Treasury and Common Stock for conversion premium on Convertible Debt redemption	9	(9)
Reversal of tax benefits related to Convertible Debt		6,554					6,554
Additions to Noncontrolling Interests from Acquisitions						16,560	16,560
Other Comprehensive Income (Loss) (see detail Comprehensive Income Statement)					46,897	1,093	47,990
Ending Balance at Jan. 01, 2011	386	535,807		827,467	(1,700)	35,202	1,397,162
Net Income				152,290		5,730	158,020
Dividends Declared				(28,477)			(28,477)
Issuance of shares of Common Stock for Acquisition	28	140,851					140,879
Stock Options Exercised including income tax benefit and share cancellations	2	(1,486)					(1,484)
Share-based Compensation		14,284					14,284
Other Comprehensive Income (Loss) (see detail Comprehensive Income Statement)					(103,521)	(464)	(103,985)
Ending Balance at Dec. 31, 2011	$ 416	$ 689,456		$ 951,280	$ (105,221)	$ 40,468	$ 1,576,399