Commitments and Contingencies (Details) (USD $) In Millions	Jul. 01, 2011
Commitments and Contingencies (Details) [Abstract]
Total US government contract-related reserves balance	$ 6.7

The carrying amount as of the balance sheet date of the combined total of loss contingency reserves.

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

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