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Stockholder's Equity (Details) (USD $) | 12 Months Ended | 0 Months Ended | 30 Months Ended
--- | --- | --- | ---
Mar. 28, 2015 | Mar. 29, 2014 | Mar. 30, 2013 | Nov. 20, 2012 | Mar. 28, 2015
Repurchase and retirement of common stock, value | $ 10,534,000 us-gaap_StockRepurchasedAndRetiredDuringPeriodValue | $ 52,138,000 us-gaap_StockRepurchasedAndRetiredDuringPeriodValue | $ 86,059,000 us-gaap_StockRepurchasedAndRetiredDuringPeriodValue |  |
Remaining amount available for share repurchases under stock repurchase program | 51,700,000 us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount |  |  |  |
Preferred stock, shares authorized | 5,000,000 us-gaap_PreferredStockSharesAuthorized | 5,000,000 us-gaap_PreferredStockSharesAuthorized |  |  | 5,000,000 us-gaap_PreferredStockSharesAuthorized
November 2012 Repurchase Program [Member] |  |  |  |  |
Share repurchase program, amount approved |  |  |  | 200,000,000 us-gaap_StockRepurchaseProgramAuthorizedAmount / us-gaap_ShareRepurchaseProgramAxis = crus_NovemberTwoThousandTwelveRepurchaseProgramMember |
Repurchase and retirement of common stock, shares | 600,000 us-gaap_StockRepurchasedAndRetiredDuringPeriodShares / us-gaap_ShareRepurchaseProgramAxis = crus_NovemberTwoThousandTwelveRepurchaseProgramMember |  |  |  | 6,200,000 us-gaap_StockRepurchasedAndRetiredDuringPeriodShares / us-gaap_ShareRepurchaseProgramAxis = crus_NovemberTwoThousandTwelveRepurchaseProgramMember
Repurchase and retirement of common stock, value |  |  |  |  | 148,300,000 us-gaap_StockRepurchasedAndRetiredDuringPeriodValue / us-gaap_ShareRepurchaseProgramAxis = crus_NovemberTwoThousandTwelveRepurchaseProgramMember
Average cost per share repurchased | $ 18.17 crus_AverageCostPerShareRepurchased / us-gaap_ShareRepurchaseProgramAxis = crus_NovemberTwoThousandTwelveRepurchaseProgramMember |  |  |  | $ 23.87 crus_AverageCostPerShareRepurchased / us-gaap_ShareRepurchaseProgramAxis = crus_NovemberTwoThousandTwelveRepurchaseProgramMember
Series A Participating Preferred Stock [Member] |  |  |  |  |
Preferred stock, shares authorized | 5,000,000 us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |  |  |  | 5,000,000 us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Preferred Stock, shares issued | 0 us-gaap_PreferredStockSharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember |  |  |  | 0 us-gaap_PreferredStockSharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember

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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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- Definition Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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