Condensed Consolidated Statements of Stockholders’ Equity (Unaudited) - USD ($) $ in Thousands	Total	Additional Paid in Capital	Retained Earnings	Noncontrolling Interests General Partnerships	Noncontrolling Interests Hamilton Lane Advisors, L.L.C.	Noncontrolling Interests Consolidated Funds	Class A Common Stock Common Stock	Class B Common Stock Common Stock
Beginning balance at Mar. 31, 2023	$ 574,192	$ 171,567	$ 243,823	$ 3,877	$ 135,702	$ 19,169	$ 39	$ 15
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	115,850		72,992	88	37,790	4,980
Equity-based compensation	5,963	4,180			1,783
Purchase and retirement of Class A stock for tax withholding	(108)	(76)			(32)
Dividends declared	(33,564)		(33,564)
Capital contributions from non-controlling interests, net	143,367			443		142,924
Member distributions	(25,214)				(25,214)
Employee Share Purchase Plan share issuance	1,082	758			324
Equity reallocation between controlling and non-controlling interests	0	2,786			(2,786)
Ending balance at Sep. 30, 2023	781,568	179,215	283,251	4,408	147,567	167,073	39	15
Beginning balance at Jun. 30, 2023	641,700	176,673	258,041	4,004	138,853	64,075	39	15
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	64,503		41,994	87	18,654	3,768
Equity-based compensation	3,118	2,185			933
Dividends declared	(16,784)		(16,784)
Capital contributions from non-controlling interests, net	99,547			317		99,230
Member distributions	(11,048)				(11,048)
Employee Share Purchase Plan share issuance	532	373			159
Equity reallocation between controlling and non-controlling interests	0	(16)			16
Ending balance at Sep. 30, 2023	781,568	179,215	283,251	4,408	147,567	167,073	39	15
Beginning balance at Mar. 31, 2024	675,958	208,402	316,696	5,043	145,762	0	41	14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	163,008		113,946	733	47,495	834
Equity-based compensation	7,896	5,812			2,084
Purchase and retirement of Class A stock for tax withholding	(918)	(676)			(242)
Dividends declared	(38,905)		(38,905)
Capital contributions from non-controlling interests, net	10,099			99		10,000
Member distributions	(16,485)				(16,485)
Employee Share Purchase Plan share issuance	1,269	934			335
Equity reallocation between controlling and non-controlling interests	0	316			(316)
Ending balance at Sep. 30, 2024	801,922	214,788	391,737	5,875	178,633	10,834	41	14
Beginning balance at Jun. 30, 2024	736,828	210,099	356,209	5,388	160,445	4,632	41	14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	75,922		54,982	388	19,850	702
Equity-based compensation	4,673	3,439			1,234
Purchase and retirement of Class A stock for tax withholding	(390)	(287)			(103)
Dividends declared	(19,454)		(19,454)
Capital contributions from non-controlling interests, net	5,599			99		5,500
Member distributions	(1,876)				(1,876)
Employee Share Purchase Plan share issuance	620	456			164
Equity reallocation between controlling and non-controlling interests	0	1,081			(1,081)
Ending balance at Sep. 30, 2024	$ 801,922	$ 214,788	$ 391,737	$ 5,875	$ 178,633	$ 10,834	$ 41	$ 14