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Business Combinations Business Combinations (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 02, 2015 | Oct. 03, 2014 | Aug. 01, 2014
Business Combinations [Abstract] |  |  |
Date of acquisition agreement |  | Aug. 01, 2014 |
Cash paid to acquire entity | $ 240.1 swks_BusinessAcquisitionEstimatedCashtobePaid |  |
Voting rights acquired |  |  | 66.00%swks_BusinessAcquisitionPercentofVotingRightstobeAcquired
Noncontrolling interest in joint ventures |  |  | 34.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Percent to be consolidated | 100.00%swks_BusinessAcquisitionPercenttobeConsolidated |  |
Property, plant, and equipment acquired | 7.2 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment |  |
Consideration transferred | 6.9 us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentConsiderationTransferred |  |
Accrued working capital adjustment | $ 17.8 swks_Businesscombinationaccruedworkingcapitaladjustment |  |

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- Definition Business Acquisition, Estimated Cash to be Paid + References No definition available. + Details
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- Definition Business Acquisition, Percent of Voting Rights to be Acquired + References No definition available. + Details
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Data Type: | num:percentItemType
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- Definition Business Acquisition Percent to be Consolidated + References No definition available. + Details
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- Definition Business combination accrued working capital adjustment + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e845-128460 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Acquisition Date -URI http://asc.fasb.org/extlink&oid=6919109 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e848-128460 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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Balance Type: | na
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- Definition This element represents the amount of any measurement period adjustment (as defined) realized during the reporting period to items of consideration transferred in connection with a business combination for which the initial accounting was incomplete. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1500-128463 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
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- Details
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- Definition The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. + References No definition available. + Details
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