Sale of TPack A/S (Details) (TPack [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
Apr. 22, 2013
TPack [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price of subsidiary	$ 33.5

Divestiture of Interest in Consolidated Subsidiaries, Sales Price

No definition available.

Name:	amcc_DivestitureofInterestinConsolidatedSubsidiariesSalesPrice
Namespace Prefix:	amcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration