v2.4.0.6
Document And Entity Information
9 Months Ended
Dec. 31, 2011
Jan. 23, 2012
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Entity Registrant Name CIRRUS LOGIC INC  
Entity Central Index Key 0000772406  
Entity Filer Category Large Accelerated Filer  
Document Period End Date Dec. 31, 2011  
Document Fiscal Year Focus 2012  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --03-31  
Entity Common Stock, Shares Outstanding   64,096,001