Financial Statement Revision And Summary Of Significant Accounting Policies (Consolidated Statements Of Equity) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 25, 2011	Dec. 26, 2010	Dec. 27, 2009
Balance	$ 581,554	$ 555,558	$ 510,407
Net earnings (loss)	(66,626)	27,614	23,665
Exercise of stock-based compensation and awards released	2,210	6,022	845
Tax benefit (shortfall) on stock-based compensation	77	133	(481)
Stock-based compensation expense	7,408	8,751	7,135
Deferred compensation plan	1,173	2,112	1,415
Repurchase of non-controlling interests		(692)
Amortization of pension plan actuarial losses, net of tax	137	103	84
Change in realized and unrealized gains on derivative hedges, net of tax	1,165	679	(1,182)
Recognized gain on pension, net of tax	(2,571)	(3,405)	1,934
Foreign currency translation adjustment	3,542	(15,321)	11,736
Balance	529,340	581,554	555,558
Retained Earnings [Member]
Balance	230,837	203,107	178,995
Net earnings (loss)	(66,569)	27,730	24,112
Balance	164,268	230,837	203,107
Accumulated Other Comprehensive Income [Member]
Balance	10,470	28,451	16,236
Amortization of pension plan actuarial losses, net of tax	137	103	84
Change in realized and unrealized gains on derivative hedges, net of tax	1,165	679	(1,182)
Recognized gain on pension, net of tax	(2,571)	(3,405)	1,934
Foreign currency translation adjustment	3,540	(15,358)	11,379
Balance	12,741	10,470	28,451
As Previously Reported [Member]
Balance		558,554	511,135
Net earnings (loss)		27,255	25,695
Exercise of stock-based compensation and awards released		6,022	845
Tax benefit (shortfall) on stock-based compensation		133	(481)
Stock-based compensation expense		8,751	7,135
Deferred compensation plan		2,112	1,415
Repurchase of non-controlling interests		(692)
Amortization of pension plan actuarial losses, net of tax		103	84
Change in realized and unrealized gains on derivative hedges, net of tax		679	(1,182)
Recognized gain on pension, net of tax		(3,405)	1,934
Foreign currency translation adjustment		(15,221)	11,974
Balance		584,291	558,554
As Previously Reported [Member] | Retained Earnings [Member]
Balance		205,951	179,809
Net earnings (loss)		27,371	26,142
Balance		233,322	205,951
As Previously Reported [Member] | Accumulated Other Comprehensive Income [Member]
Balance		28,603	16,150
Amortization of pension plan actuarial losses, net of tax		103	84
Change in realized and unrealized gains on derivative hedges, net of tax		679	(1,182)
Recognized gain on pension, net of tax		(3,405)	1,934
Foreign currency translation adjustment		(15,258)	11,617
Balance		$ 10,722	$ 28,603