Accumulated Other Comprehensive Loss (Details) (USD $) In Millions	3 Months Ended	9 Months Ended
Jul. 01, 2011	Jul. 01, 2011
Accumulated Other Comprehensive Loss
Changes in the value of auction rate securities or pension liability	$ 0	$ 0

Name:

swks_ChangesInValueOfAuctionRateSecuritiesOrPensionLiability

Namespace Prefix:

swks

Data Type:

xbrli:monetaryItemType

Balance Type:

credit

Period Type:

duration