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Employee Stock-Based Compensation (Additional Information For Share Based Compensation) (Details)
$ / shares in Units, shares in Thousands, $ in Millions
 12 Months Ended
Jun. 29, 2022
shares
Mar. 31, 2023
USD ($)
installment
shares
Mar. 31, 2022
USD ($)
$ / shares
shares
Mar. 31, 2021
USD ($)
shares
Mar. 31, 2020
shares
Employee Benefit Plan          
Share-based compensation expenses capitalized as inventory | $   $ 5.6 $ 5.2 $ 4.3  
Future stock-based compensation cost | $   $ 125.2      
Recognized weighted cost (in years)   2 years 4 months 24 days      
Tax benefit realized for the tax deduction from options exercised | $   $ 0.1 $ 1.2 $ 0.6  
1996 ESPP and 2006 ESPP          
Employee Benefit Plan          
Purchase price of shares expressed as percentage of the fair market value (as a percent)   85.00%      
Offering period of ESPP Plan (in months)   6 months      
Number of shares reserved for issuance (in shares)   29,000      
Number of shares available for issuance (in shares)   3,600      
2006 Plan          
Employee Benefit Plan          
Number of shares reserved for issuance (in shares)   33,800      
Number of shares available for issuance (in shares)   8,400      
Additional issuance shares (in shares) 3,300        
Stock Options          
Employee Benefit Plan          
Weighted average grant date fair value per share (in dollars per share) | $ / shares     $ 25.88    
Stock Options | 2006 Plan          
Employee Benefit Plan          
Expiration period (in years)   10 years      
Service-Based RSU | 2006 Plan | Maximum          
Employee Benefit Plan          
Vesting installment | installment   4      
Granted—PSUs          
Employee Benefit Plan          
RSUs outstanding (in shares)   800      
Percent of granted and vested of target number (as a percent)   100.00%      
Granted—PSUs | 2006 Plan          
Employee Benefit Plan          
Performance period (in years)   3 years      
Restricted Stock Units (RSUs)          
Employee Benefit Plan          
RSUs outstanding (in shares)   3,456 3,046 3,643 3,951
Tax benefit realized for the tax deduction from RSUs vested during period | $   $ 11.1 $ 25.2 $ 16.3