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Segment Information Concentration (Details) | 12 Months Ended
--- | ---
Sep. 30, 2011 | Oct. 01, 2010 | Oct. 02, 2009
Credit Concentration Risk [Member] |  |  |
Accounts Receivable From Major Customers Percentage | 53.00% | 60.00% | 34.00%
Company A [Member] | Customer One [Member] |  |  |
Revenue from major customers percentage | 27.00% |  |
Company A [Member] | Customer Two [Member] |  |  |
Revenue from major customers percentage |  | 13.00% |
Company B [Member] | Customer Two [Member] |  |  |
Revenue from major customers percentage | 13.00% |  |
Company B [Member] | Customer Three [Member] |  |  |
Revenue from major customers percentage |  | 12.00% |
Company C [Member] | Customer One [Member] |  |  |
Revenue from major customers percentage |  | 13.00% | 15.00%
Company C [Member] | Customer Three [Member] |  |  |
Revenue from major customers percentage | 11.00% |  |
Company D [Member] | Customer Two [Member] |  |  |
Revenue from major customers percentage |  |  | 12.00%
Company E [Member] | Customer Three [Member] |  |  |
Revenue from major customers percentage |  |  | 11.00%

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- Definition Accounts Receivable From Major Customers Percentage + Details
Name: | swks_AccountsReceivableFromMajorCustomersPercentage
Namespace Prefix: | swks
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Revenue From Major Customers Percentage + Details
Name: | swks_RevenueFromMajorCustomersPercentage
Namespace Prefix: | swks
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration