Earnings per Share - Diluted EPS for a Share of Class A Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Class of Stock [Line Items]
Net income attributable to Class A common stockholders - basic	$ 54,982	$ 41,994	$ 113,946	$ 72,992
Class A Common Stock
Class of Stock [Line Items]
Net income attributable to Class A common stockholders - basic	54,982	41,994	113,946	72,992
Net income attributable to Class A common stockholders	$ 74,419	$ 59,862	$ 154,092	$ 103,222
Weighted-average shares of Class A common stock outstanding - basic (in shares)	39,704,607	37,718,210	39,700,166	37,713,038
Weighted-average shares of Class A common stock outstanding (in shares)	54,180,960	53,941,082	54,127,320	53,896,757
Diluted EPS of Class A common stock (in dollars per share)	$ 1.37	$ 1.11	$ 2.85	$ 1.92
Class A Common Stock | Assumed vesting of employee awards
Class of Stock [Line Items]
Adjustments to net income:	$ 91	$ 44	$ 152	$ 53
Dilutive Shares (in shares)	254,578	133,775	205,379	94,622
Class A Common Stock | Assumed conversion of Class B and Class C units
Class of Stock [Line Items]
Adjustments to net income:	$ 19,346	$ 17,824	$ 39,994	$ 30,177
Dilutive Shares (in shares)	14,221,775	16,089,097	14,221,775	16,089,097