v2.4.0.6

Accounts Receivable, Net (Narrative) (Details)	Dec. 31, 2011 days	Mar. 26, 2011 days
Accounts Receivable, Net [Abstract]
Average days sales outstanding, net	37	38

X

- Definition

Average Days Sales Outstanding, Net

+ References

No definition available.

+ Details

Name:	crus_AverageDaysSalesOutstandingNet
Namespace Prefix:	crus_
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	instant

X

- Details

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