Condensed Consolidated Statements Of Shareholders' Equity (USD $) In Thousands		Total	Common Stock	Additional Paid-In Capital	Retained Earnings (Deficit)	Pension & Other Post retirement Benefits	Cumulative Translation Adjustment	Unrealized Gains (Losses) on Hedges	Equity Attributable to Noncontrolling Interests
Beginning Balance at Dec. 31, 2011		$ 818,421	$ 89	$ 786,355	$ 109,442	$ (94,708)	$ 30,346	$ (39,020)	$ 25,917
Beginning Balance (in shares) at Dec. 31, 2011			88,952
Net income (loss)		17,144			16,367				777
Share-based compensation		2,849		2,849
Dividends paid		(180)							(180)
Change/Disposal in noncontrolling interest		(150)							(150)
Net foreign currency translation adjustment		4,953					4,950		3
Unrealized hedging gains (losses), net of income tax expense (benefit) of $289 and $1636 for the period ended March 23, 2013 and March 24, 2012 respectively		52,772						52,772
Reclassification of realized losses to net income, net of income tax expense (benefit) of $(664) and ($199) for the period ended March 23, 2013 and March 24, 2012 respectively		2,617						2,617
Ending Balance at Mar. 24, 2012		898,426	89	789,204	125,809	(94,708)	35,296	16,369	26,367
Ending Balance (in shares) at Mar. 24, 2012			88,952
Beginning Balance at Dec. 29, 2012		712,526	89	800,517	(35,021)	(112,122)	34,371	(1,699)	26,391
Beginning Balance (in shares) at Dec. 29, 2012		89,189	89,189
Net income (loss)		(65,597)			(66,728)				1,131
Share-based compensation		10,965		10,965
Issuance of restricted stock	[1]		211
Dividends paid		(430)							(430)
Change/Disposal in noncontrolling interest		811							811
Net foreign currency translation adjustment		(15,841)					(15,842)		1
Unrealized hedging gains (losses), net of income tax expense (benefit) of $289 and $1636 for the period ended March 23, 2013 and March 24, 2012 respectively		1,719						1,719
Reclassification of realized losses to net income, net of income tax expense (benefit) of $(664) and ($199) for the period ended March 23, 2013 and March 24, 2012 respectively		143						143
Ending Balance at Mar. 23, 2013		$ 644,296	$ 89	$ 811,482	$ (101,749)	$ (112,122)	$ 18,529	$ 163	$ 27,904
Ending Balance (in shares) at Mar. 23, 2013		89,400	89,400

[1] 211,350 restricted shares were issued in February 2013. The transfer agent formally recorded this issuance after March 23, 2013.