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Stock-Based Compensation - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Mar. 31, 2013
Apr. 01, 2012
Apr. 03, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Discount rate on purchase of common stock under ESPP 15.00%    
Number of shares issued under the ESPP 740,000 556,000 449,000
Shares available for future grant under the 2005 plan 9,500,000    
Tax benefits, stock-based compensation expense $ 7.9 $ 7.7 $ 7.1
Unrecognized compensation costs related to outstanding stock-based awards 50.9    
Expected weighted-average period of recognition 2 years 4 months 24 days    
Grant date fair value of options vested 12.1 16.5 18.5
Intrinsic value of options exercised 0.2 3.8 8.4
Minimum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Contributions of compensation to purchase shares of common stock 1.00%    
Maximum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Contributions of compensation to purchase shares of common stock 10.00%    
Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Term of stock options granted 10 years    
Vesting period 4 years    
Restricted stock units (RSUs) [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 4 years    
Common stock issued with the vesting of restricted stock units 638,000 546,000 581,000
Restricted stock unit granted, Number of Shares 1,753,000 1,656,000 965,000
Weighted-average grant date fair value $ 13.52 $ 15.63 $ 17.79
Fair value of restricted stock units vested $ 14.6 $ 14.4 $ 17.1
Restricted Stock Units with Service Conditions and either a Performance or Market Condition [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 4 years    
Restricted stock unit granted, Number of Shares 200,000    
Weighted-average grant date fair value $ 14.10    
Non-employee directors [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of the target fair value in the initial grant allocated to non-qualified stock options 50.00%    
Percentage of the target fair value in the initial grant allocated to restricted stock units 50.00%    
Percentage of the target fair value in the annual grant allocated to non-qualified stock options 30.00%    
Percentage of the target fair value in the annual grant allocated to restricted stock units 70.00%    
Non-employee directors [Member] | Minimum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 1 year    
Non-employee directors [Member] | Maximum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Restricted Stock Units with Performance and Service Conditions [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period   4 years  
Restricted stock unit granted, Number of Shares   200,000  
Restricted stock units earned based on performance 100,000    
Weighted-average fair value of restricted stock units earned based on performance $ 13.85