Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	12 Months Ended
Sep. 30, 2011	Oct. 01, 2010
Derivative Instruments And Hedging Activities [Abstract]
Minimum remaining maturity of foreign currency derivatives, in months	1
Maximum remaining maturity of foreign currency derivatives, in months	12
Net unrealized loss on derivative instruments, before tax, included in "Accumulated other comprehensive loss, and is expected to be reclassified to net earnings over the twelve months that follow	$ 11,000	$ 502,000
Aggregate fair value of outstanding derivative instruments with credit-risk-related contingent features, net liability position	not significant	not significant

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6887037&loc=d3e80748-113994

Name:	us-gaap_ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant