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STOCK-BASED COMPENSATION - Schedule of Restricted Shares and Performance Stock Units (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
6 Months Ended
Mar. 30, 2014
Mar. 29, 2015
Sep. 28, 2014
Restricted shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Quantity   1,238us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
1,433us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
Weighted average fair value per award (USD per award)   $ 29.04us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
$ 24.64us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
Performance stock units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Quantity   403us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
332us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
Weighted average fair value per award (USD per award)   $ 27.54us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
$ 26.27us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
Symmetricom | Stock options assumed from acquisition      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Quantity options assumed from acquisition 578mscc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInPeriod
/ us-gaap_AwardTypeAxis
= mscc_RestrictedStockAwardsAndUnitsMember
/ us-gaap_BusinessAcquisitionAxis
= mscc_SymmetricomMember
   
Weighted average fair value options assumed from acquisition (USD per option) $ 7.01mscc_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAssumedInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= mscc_RestrictedStockAwardsAndUnitsMember
/ us-gaap_BusinessAcquisitionAxis
= mscc_SymmetricomMember