Business Combinations (Details) $ in Millions	Jan. 01, 2016 USD ($)
Business Combination Termination Fee Per Definitive Agreement	$ 88.5

Business Combination Termination Fee Per Definitive Agreement

No definition available.

Name:	swks_BusinessCombinationTerminationFeePerDefinitiveAgreement
Namespace Prefix:	swks_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant