Employees' Stock Option Plans (ESOP) - Summary of Stock Option Grant (Details) - shares	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Total grants	6,093,927	9,504,262	6,159,511
2015 Stock Incentive Compensation Plan \| RSU
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Total grants	3,744,345	4,187,902	3,914,657
2015 Stock Incentive Compensation Plan \| Incentive Units Cash Settled
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Total grants	2,255,532	5,139,370	2,152,454
2015 Stock Incentive Compensation Plan \| KMPs \| RSU
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Total grants	380,842	494,650	367,479
2015 Stock Incentive Compensation Plan \| Employees Other Than KMPs \| RSU
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Total grants	1,874,690	4,644,720	1,784,975
2015 Stock Incentive Compensation Plan \| Other Employees \| Incentive Units Cash Settled
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Total grants	94,050	176,990	92,400
2019 Stock Ownership Program \| Equity Settled Performance Based RSU
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Total grants	94,050	176,990	92,400
2019 Stock Ownership Program \| KMPs \| Equity Settled Performance Based RSU
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]
Total grants	117,699	139,271	207,893
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	3,626,646	4,048,631	3,706,764