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Stockholders’ Equity and Redeemable Non-Controlling Interests - Narrative (Details) $ / shares in Units, $ in Thousands					1 Months Ended				12 Months Ended
	Mar. 09, 2026 USD ($) shares	May 30, 2025 USD ($) shares	May 31, 2024 USD ($) $ / shares shares	Apr. 01, 2024 USD ($)	Dec. 31, 2025 shares	Sep. 30, 2025 shares	Jun. 30, 2025 shares	Mar. 31, 2025 USD ($) $ / shares shares	Mar. 31, 2026 USD ($) classOfStock $ / shares shares	Mar. 31, 2024 USD ($)	Feb. 07, 2024 exchange shares
Subsidiary, Sale of Stock [Line Items]
Number of classes of common stock outstanding \| classOfStock									2
Preferred stock, authorized (in shares)									25,000,000
Preferred stock, par value (in dollars per share) \| $ / shares									$ 0.001
Preferred stock, issued (in shares)									0
Preferred stock, outstanding (in shares)									0
Number of annual exchanges \| exchange											10
Number of additional annual exchanges \| exchange											15
Shares available for issuance as consideration (in shares)											75,000,000
Annual percentage of equity interests to be exchanged		5.00%	5.00%								5.00%
Transaction agreement, notification period									10 days
Payments to acquire additional interests \| $		$ 10,000	$ 13,000	$ 5,400
Transaction agreement, exchange ratio			1
Class D exchange agreement, period			1 year
Class D exchange agreement, acceleration exchange, period			2 years
Non-Controlling Interests in Subsidiaries
Subsidiary, Sale of Stock [Line Items]
Redeemable non-controlling interests in Consolidated Funds \| $								$ 6,327	$ 8,777	$ 115,920
SRA
Subsidiary, Sale of Stock [Line Items]
Noncontrolling interest, ownership by parent		60.00%	54.00%
SRE
Subsidiary, Sale of Stock [Line Items]
Noncontrolling interest, ownership by parent		60.00%	56.00%
SPD
Subsidiary, Sale of Stock [Line Items]
Noncontrolling interest, ownership by parent		59.00%	54.00%
Limited Partners
Subsidiary, Sale of Stock [Line Items]
Share exchange ratio								1
Class C common stock
Subsidiary, Sale of Stock [Line Items]
Conversion of stock, conversion basis (in shares)									1
Class C common stock \| Limited Partners \| Exchange Two
Subsidiary, Sale of Stock [Line Items]
Shares exchanged (in shares)						16,658	18,000
Class A Common Stock
Subsidiary, Sale of Stock [Line Items]
Conversion of stock, conversion basis (in shares)	1
Share repurchase program, authorized, amount \| $	$ 100,000
Share repurchase program, remaining authorized, amount \| $									$ 91,300
Class A common stock issued for purchase of asset class non-controlling interests (in shares)		756,105	513,394						756,105
Common stock, par value (in dollars per share) \| $ / shares			$ 0.001					$ 0.001	$ 0.001
Class A Common Stock \| Limited Partners \| Exchange One
Subsidiary, Sale of Stock [Line Items]
Shares issued (in shares)					116,000	370,470	152,768	379,955
Class A Common Stock \| Limited Partners \| Exchange Two
Subsidiary, Sale of Stock [Line Items]
Shares issued (in shares)					892,169	16,658	18,000
Class A Common Stock \| Limited Partners \| Exchange Three
Subsidiary, Sale of Stock [Line Items]
Shares issued (in shares)						135,697	864,640
Class B Common Stock
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in dollars per share) \| $ / shares								$ 0.001	$ 0.001
Class B Common Stock \| Limited Partners \| Exchange One
Subsidiary, Sale of Stock [Line Items]
Shares exchanged (in shares)					116,000	370,470	152,768	379,955
Common Class D \| Limited Partners \| Exchange Two
Subsidiary, Sale of Stock [Line Items]
Shares exchanged (in shares)					892,169
Class D Partnership Units
Subsidiary, Sale of Stock [Line Items]
Class A common stock issued for purchase of asset class non-controlling interests (in shares)		2,438,403	2,239,185
Class D Partnership Units \| Limited Partners \| Exchange Three
Subsidiary, Sale of Stock [Line Items]
Shares exchanged (in shares)						135,697	864,640