Equity Compensation (Summary of Activity in Total Stock Available for Grant) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Equity Compensation [Abstract]
Shares available for grant, beginning balance	3,547	5,125	6,257
Shares available for grant, shares added	$ 3,300crus_SharesAvailableForGrantSharesAdded
Shares available for grant, granted	(3,181)	(1,785)	(1,600)
Shares available for grant, forfeited	230	207	468
Shares available for grant, ending balance	3,896	3,547	5,125

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant, Forfeited

No definition available.

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- Definition

Share based compensation arrangement (total) award number of shares available for grant shares added for the period

+ References

No definition available.

+ Details

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- Details

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

+ References

+ Details

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