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Segment Information (Schedule of Segment Revenue from Product Lines) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 28, 2015 | Dec. 27, 2014 | Sep. 27, 2014 | Jun. 28, 2014 | Mar. 29, 2014 | Dec. 28, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 28, 2015 | Mar. 29, 2014 | Mar. 30, 2013
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 255,183 us-gaap_SalesRevenueNet | $ 298,606 us-gaap_SalesRevenueNet | $ 210,214 us-gaap_SalesRevenueNet | $ 152,565 us-gaap_SalesRevenueNet | $ 149,659 us-gaap_SalesRevenueNet | $ 218,883 us-gaap_SalesRevenueNet | $ 190,671 us-gaap_SalesRevenueNet | $ 155,125 us-gaap_SalesRevenueNet | $ 916,568 us-gaap_SalesRevenueNet | $ 714,338 us-gaap_SalesRevenueNet | $ 809,786 us-gaap_SalesRevenueNet
Portable Audio Products [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 740,301 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = crus_AudioProductsSegmentMember | 562,718 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = crus_AudioProductsSegmentMember | 651,974 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = crus_AudioProductsSegmentMember
Non-Portable Audio and Other Products [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | $ 176,267 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = crus_EnergyProductsSegmentMember | $ 151,620 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = crus_EnergyProductsSegmentMember | $ 157,812 us-gaap_SalesRevenueNet / us-gaap_StatementBusinessSegmentsAxis = crus_EnergyProductsSegmentMember

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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