v3.26.1
Share-based Compensation - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Jul. 31, 2019
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Income tax benefit recognized on shares-based compensation arrangements   $ 66.4 $ 68.5 $ 64.1
Maximum percentage of shares issued based on performance target award   2    
Aggregate intrinsic value of options exercised   $ 8.7 28.1 46.1
Aggregate fair value of options vested   $ 0.1 $ 1.6 $ 9.1
PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
RSUs outstanding (in shares)   1,000,000.0    
Service Condition RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
RSUs outstanding (in shares)   9,400,000    
rTSR PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected dividend yield   0.00% 0.00%  
Shares committed under ESPP        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected dividend yield 0.00%      
Shares reserved and available for issuance as a percentage of shares outstanding 1.00%      
Increase In the number of shares reserved and available for issuance (in shares) 3,500,000      
ESPP offering period 6 months      
Purchase period 6 months      
Shares committed under ESPP | Common Class A        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
ESPP, maximum percentage of the common stock available for purchase 85.00%      
RSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
RSUs outstanding (in shares)   10,403,000 10,024,000  
Granted (in dollars per share)   $ 53.72 $ 48.27 $ 51.60
Awards granted (in shares)   7,132,000    
Aggregate fair value of awards/units vested   $ 279.1 $ 266.7 $ 220.3
Total unrecognized compensation expense related to unvested awards/units   $ 412.2    
Weighted average period of recognition   2 years    
Restricted Stock Awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
RSUs outstanding (in shares)   61,000 95,000  
Granted (in dollars per share)   $ 49.05   $ 49.05
Awards granted (in shares)   41,000 0  
Aggregate fair value of awards/units vested   $ 3.6 $ 2.7 $ 0.2
Total unrecognized compensation expense related to unvested awards/units   $ 2.2    
Weighted average period of recognition   9 months 18 days    
Share-based Payment Arrangement, Tranche One | Financial PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   1 year    
Vesting percentage   33.00%    
Share-based Payment Arrangement, Tranche One | rTSR PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   33.00%    
Share-based Payment Arrangement, Tranche Two | Financial PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   67.00%    
Minimum | PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   3 years    
Maximum | PSUs        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   4 years    
Equity Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock reserved for future issuance (in shares) 52,000,000 63,036,517    
Annual increase in shares reserved for future issuance based off of shares outstanding 4.00%      
Equity Incentive Plan | Share-based Payment Arrangement, Tranche One        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   1 year    
Vesting percentage   33.00%    
Equity Incentive Plan | Share-based Payment Arrangement, Tranche Two        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   1 year    
Vesting percentage   25.00%    
Equity Incentive Plan | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   3 years    
Equity Incentive Plan | Minimum | Share-based Payment Arrangement, Tranche Three        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   2 years    
Equity Incentive Plan | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   4 years    
Equity Incentive Plan | Maximum | Share-based Payment Arrangement, Tranche Three        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period   3 years    
ESPP        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expected dividend yield   0.00% 0.00% 0.00%
Total unrecognized compensation expense related to unvested awards/units   $ 1.4    
ESPP | Common Class A        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock reserved for future issuance (in shares)   20,716,161    
Issuance of common stock related to employee stock purchase plan (in shares)   585,374