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Minimum Annual Payments (Detail) (USD $) In Thousands	Oct. 02, 2011
Long-term Purchase Commitment [Line Items]
Total	$ 32,266
2011	27,397
2012	4,869
Thereafter

X

- Definition

Contractual Commitments Future Minimum Payments Due

+ Details

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Namespace Prefix:	mscc
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Contractual Commitments Future Minimum Payments Due Current

+ Details

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Namespace Prefix:	mscc
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Contractual Commitments Future Minimum Payments Due In Two Years

+ Details

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Namespace Prefix:	mscc
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Contractual Commitments Future Minimum Payments Due Thereafter

+ Details

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Namespace Prefix:	mscc
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Namespace Prefix:	us-gaap
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Balance Type:	na
Period Type:	duration