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Description Of Business and Basis Of Presentation (Details) | 6 Months Ended
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Apr. 03, 2015 | Mar. 28, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Fiscal Period Number of Weeks In Fiscal Year | 1 year | 1 year 7 days
Fiscal Period Number of Weeks in Fiscal Quarter | 3 months | 3 months

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- Definition Fiscal Period Length of Fiscal Quarter + References No definition available. + Details
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- Definition Fiscal Period Length of Fiscal Year + References No definition available. + Details
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Namespace Prefix: | swks_
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Balance Type: | na
Period Type: | duration

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- Details
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