Contingencies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 30, 2012 LegalMatter	Dec. 31, 2011
Contingencies (Textual) [Abstract]
Annual deductible to cover defense and indemnity costs incurred	$ 1.0
Number of CBD cases pending	0
Undiscounted reserve balance	$ 5.4	$ 5.3
Number of claims filed	0

The total amount of pending claims pertaining to a loss contingency accrual as of the balance sheet date.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_LossContingencyPendingClaimsNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant