Income Taxes (Income Before Income Tax, Domestic And Foreign) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
Income Tax Examination [Line Items]
Pre-tax income (loss)	$ 57,637	$ 115,736	$ (30,333)
Domestic Country [Member]
Income Tax Examination [Line Items]
Pre-tax income (loss)	21,202	53,444	(69,386)
Foreign Country [Member]
Income Tax Examination [Line Items]
Pre-tax income (loss)	$ 36,435	$ 62,292	$ 39,053

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 4

-Section 08

-Paragraph h

-Subparagraph 1(i)

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Name:	us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration