Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues
Total revenues	$ 153,382	$ 96,320	$ 288,891	$ 175,315
Consolidated variable interest entities related:
Total revenues	153,382	96,320	288,891	175,315
Expenses
Compensation and benefits	60,364	33,292	112,558	60,024
Consolidated variable interest entities related:
Total expenses	83,556	49,819	156,540	93,064
Other income (expense)
Equity in (loss) income of investees	(7,518)	27,208	(8,143)	47,257
Interest income	1,107	39	1,276	462
Non-operating income	11,738	24,854	16,081	28,457
Consolidated variable interest entities related:
Unrealized income (loss)			5,352	27,838
Total other income (expense)	3,402	52,351	8,492	73,246
Income before income taxes	73,228	98,852	140,843	155,497
Income tax expense	15,489	14,032	26,977	25,996
Net income	57,739	84,820	113,866	129,501
Net income attributable to Hamilton Lane Incorporated	34,881	52,145	68,365	80,313
Class A Common Stock
Consolidated variable interest entities related:
Net income attributable to Hamilton Lane Incorporated	$ 34,881	$ 52,145	$ 68,365	$ 80,313
Basic earnings per share of Class A common stock (in dollars per share)	$ 0.98	$ 1.41	$ 1.89	$ 2.20
Diluted earnings per share of Class A common stock (in dollars per share)	0.97	1.41	1.88	2.19
Dividends declared per share of Class A common stock (in dollars per share)	$ 0.40	$ 0.35	$ 0.80	$ 0.70
Consolidated Entity Excluding Variable Interest Entities (VIE)
Expenses
General, administrative and other	$ 22,836	$ 16,256	$ 43,350	$ 32,410
Consolidated variable interest entities related:
General, administrative and other	22,836	16,256	43,350	32,410
Other income (expense)
Interest expense	(2,114)	(1,166)	(3,609)	(2,331)
Primary Beneficiary
Expenses
General, administrative and other	356	271	632	630
Consolidated variable interest entities related:
General, administrative and other	356	271	632	630
Consolidated variable interest entities related:
Equity in (loss) income of investees	(91)	240	641	469
Unrealized income (loss)	280	1,176	2,246	(1,068)
General Partnerships
Consolidated variable interest entities related:
Less: (loss) Income attributable to non-controlling interests	43	73	351	286
Hamilton Lane Advisors, L.L.C.
Consolidated variable interest entities related:
Less: (loss) Income attributable to non-controlling interests	22,012	31,372	42,180	50,668
Hamilton Lane Alliance Holdings I, Inc.
Consolidated variable interest entities related:
Less: (loss) Income attributable to non-controlling interests	803	1,230	2,970	(1,766)
Management and advisory fees
Revenues
Total revenues	92,880	75,934	178,826	149,818
Consolidated variable interest entities related:
Total revenues	92,880	75,934	178,826	149,818
Incentive fees
Revenues
Total revenues	60,502	20,386	110,065	25,497
Consolidated variable interest entities related:
Total revenues	60,502	20,386	110,065	25,497
Incentive fees | Consolidated Entity Excluding Variable Interest Entities (VIE)
Revenues
Total revenues	59,237	21,362	108,760	23,726
Consolidated variable interest entities related:
Total revenues	59,237	21,362	108,760	23,726
Incentive fees | Primary Beneficiary
Revenues
Total revenues	1,265	(976)	1,305	1,771
Consolidated variable interest entities related:
Total revenues	$ 1,265	$ (976)	$ 1,305	$ 1,771