v3.26.1
Employees' Stock Option Plans (ESOP) - Summary of Stock Option Grant (Details) - shares
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
2015 Stock Incentive Compensation Plan | RSU      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 2,631,950 2,255,532 5,139,370
2015 Stock Incentive Compensation Plan | Incentive Units Cash Settled      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 119,800 94,050 176,990
2015 Stock Incentive Compensation Plan | KMPs | RSU      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 377,609 380,842 494,650
2015 Stock Incentive Compensation Plan | Employees Other Than KMPs | RSU      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 2,254,341 1,874,690 4,644,720
2015 Stock Incentive Compensation Plan | Employees Other Than KMPs | Incentive Units Cash Settled      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 119,800 94,050 176,990
2015 Plan Employee Stock Options (ESOPs) | Equity Settled RSUs      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 5,650,160    
2015 Plan Employee Stock Options (ESOPs) | Cash Settled RSUs      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 108,180    
2015 Plan Employee Stock Options (ESOPs) | KMPs | Equity Settled RSUs      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 231,270    
2015 Plan Employee Stock Options (ESOPs) | Employees Other Than KMPs | Equity Settled RSUs      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 5,418,890    
2015 Plan Employee Stock Options (ESOPs) | Employees Other Than KMPs | Cash Settled RSUs      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 108,180    
Grants Under 2015 Plan      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 8,510,090 2,349,582 5,316,360
2019 Stock Ownership Program | Equity Settled Performance Based RSU      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 4,549,356 3,744,345 4,187,902
2019 Stock Ownership Program | KMPs | Equity Settled Performance Based RSU      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 124,516 117,699 139,271
2019 Stock Ownership Program | Employees Other Than KMPs | Equity Settled Performance Based RSU      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 4,424,840 3,626,646 4,048,631
Grants Under 2019 Plan      
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]      
Total grants 4,549,356 3,744,345 4,187,902