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Stock-Based Compensation (Narrative) (Details) (USD $)
3 Months Ended 12 Months Ended
Mar. 29, 2014
ShareBasedCompensationPlan
Mar. 30, 2013
Dec. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of stock-based compensation programs 2    
Share repurchase plan, authorized amount     $ 275,000,000
Proceeds from issuance of stock-based awards 9,300,000 14,800,000  
Total intrinsic value of stock options 1,200,000 1,700,000  
Total unrecognized compensation costs 5,700,000    
Shares issued during period under ESPP 1,027,266    
Weighted average price per share under ESPP $ 5.50    
Stock available for further issuance during the period under ESPP 5,269,669   6,296,935
Total intrinsic value of ESPP shares issued 1,300,000    
Total forfeitures recorded 800,000 700,000  
RSU Activity [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period (years) 4 years    
Total intrinsic value of stock options 800,000    
Total unrecognized compensation costs 26,700,000    
Unrecognized compensation expected to be recognized, average period 2 years 7 months 6 days    
Fair value of grants 2,500,000    
Employee Stock Purchase Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total unrecognized compensation costs 1,200,000    
Stock price as a percentage of fair value 85.00%    
Maximum annual increase in shares that can be issued under ESPP 2,000,000    
Maximum annual increase in shares that can be issued under ESPP, percentage of outstanding shares 1.00%    
Weighted average grant-date fair value per ESPP award $ 1.67    
1994 Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Additional shares reserved for issuance 0    
2001 Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Additional shares reserved for issuance 2,001    
2008 Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Option expiration term (years) 10 years    
Award vesting period (years) 4 years    
Common shares reserved for issuance 21,100,000    
Shares per award, ratio 1.6    
RSUs or stock awards awarded when those shares are issued for cash consideration per share or unit, percent, less than fair market value of common stock 100.00%    
Maximum number of unexercised options that may become eligible for reissuance under the plan 15,000,000    
2011 Employee Stock Purchase Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common shares reserved for issuance 12,000,000    
Stock price as a percentage of fair value 85.00%    
Maximum percentage of compensation an employee can use to purchase stock 10.00%    
2012 Annual Plan Of Record [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period (years) 3 years    
Maximum [Member] | Employee Stock Purchase Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Maximum duration of offering period of common stock under ESPP (months) 24 months    
Maximum [Member] | 2011 Employee Stock Purchase Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Maximum shares of stock an employee can purchase 7,500    
Maximum amount granted to each employee to purchase common stock under ESPP $ 25,000    
Pre-Vesting [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation expected to be recognized, average period 2 years 1 month 6 days    
August 25, 2015 [Member] | RSU Activity [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting percentage 50.00%    
August 25, 2016 [Member] | RSU Activity [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting percentage 50.00%