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Accounts Receivable, Net (Narrative) (Details)	Sep. 24, 2011	Mar. 26, 2011
Accounts Receivable, Net [Abstract]
Average days sales outstanding, net	39	38

X

- Definition

Average Days Sales Outstanding, Net

+ Details

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Namespace Prefix:	crus
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	instant

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- Details

Name:	us-gaap_AccountsReceivableNetAbstract
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration