Fair Value Measurement (Reconciliation Of Changes In Financial Liabilities) (Details) (USD $) In Thousands	Jun. 26, 2011	Dec. 31, 2010
Fair Value Measurement
Beginning Balance	$ 9,530
Initial estimate of contingent consideration	15,400
Payment	(6,000)
Revaluations	130
Ending Balance	$ 9,530

This element represents a liability measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant