Subsequent Events (Details) (Subsequent Event [Member], USD $) In Millions, unless otherwise specified	0 Months Ended
Jan. 22, 2014
Subsequent Event [Member]
Subsequent Event [Line Items]
Property held-for-sale, sale price	$ 40.8
Proceeds from nonrefundable cash deposit	$ 7.0

Proceeds from Sale of Property Held-for-sale, Nonrefundable Cash Deposit

No definition available.

Name:	amcc_ProceedsfromSaleofPropertyHeldforsaleNonrefundableCashDeposit
Namespace Prefix:	amcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration