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Variable Interest Entities and Consolidated Investment Products - Assets, Liabilities and Equity of the Fund (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023
Liabilities
Redeemable noncontrolling interests	$ 298,987	$ 252,406
Artisan’s direct equity investment in CIPs	99,600
Variable Interest Entity, Primary Beneficiary
ASSETS
Cash and cash equivalents	25,851	37,459	$ 32,221
Investments	413,752	364,095
Liabilities
Investment liabilities, at fair value	8,860	9,580
Net CIP assets included in the table above	421,382	372,671
Net CIP assets/(liabilities) not included in the table above	(22,748)	(5,434)
Total Net CIP assets	398,634	367,237
Artisan’s direct equity investment in CIPs	99,647	114,831
Variable Interest Entity, Primary Beneficiary | Money market funds | Fair Value, Measurements, Recurring
ASSETS
Cash and cash equivalents	16,489	18,156
Variable Interest Entity, Primary Beneficiary | Money market funds | Fair Value, Measurements, Recurring | Level 1
ASSETS
Cash and cash equivalents	16,489	18,156
Variable Interest Entity, Primary Beneficiary | Money market funds | Fair Value, Measurements, Recurring | Level 2
ASSETS
Cash and cash equivalents	0	0
Variable Interest Entity, Primary Beneficiary | Money market funds | Fair Value, Measurements, Recurring | Level 3
ASSETS
Cash and cash equivalents	0	0
Variable Interest Entity, Primary Beneficiary | Equity securities - long position | Fair Value, Measurements, Recurring
ASSETS
Investments	69,721	42,693
Variable Interest Entity, Primary Beneficiary | Equity securities - long position | Fair Value, Measurements, Recurring | Level 1
ASSETS
Investments	67,418	40,838
Variable Interest Entity, Primary Beneficiary | Equity securities - long position | Fair Value, Measurements, Recurring | Level 2
ASSETS
Investments	2,303	1,855
Variable Interest Entity, Primary Beneficiary | Equity securities - long position | Fair Value, Measurements, Recurring | Level 3
ASSETS
Investments	0	0
Variable Interest Entity, Primary Beneficiary | Fixed income instruments - long position | Fair Value, Measurements, Recurring
ASSETS
Investments	335,881	315,183
Liabilities
Investment liabilities, at fair value	6,932	7,392
Variable Interest Entity, Primary Beneficiary | Fixed income instruments - long position | Fair Value, Measurements, Recurring | Level 1
ASSETS
Investments	0	0
Liabilities
Investment liabilities, at fair value	0	0
Variable Interest Entity, Primary Beneficiary | Fixed income instruments - long position | Fair Value, Measurements, Recurring | Level 2
ASSETS
Investments	328,256	309,110
Liabilities
Investment liabilities, at fair value	6,932	7,392
Variable Interest Entity, Primary Beneficiary | Fixed income instruments - long position | Fair Value, Measurements, Recurring | Level 3
ASSETS
Investments	7,625	6,073
Liabilities
Investment liabilities, at fair value	0	0
Variable Interest Entity, Primary Beneficiary | Derivative assets | Fair Value, Measurements, Recurring
ASSETS
Investments	1,256	1,004
Liabilities
Investment liabilities, at fair value	505	2,188
Variable Interest Entity, Primary Beneficiary | Derivative assets | Fair Value, Measurements, Recurring | Level 1
ASSETS
Investments	8	0
Liabilities
Investment liabilities, at fair value	52	843
Variable Interest Entity, Primary Beneficiary | Derivative assets | Fair Value, Measurements, Recurring | Level 2
ASSETS
Investments	1,248	1,004
Liabilities
Investment liabilities, at fair value	453	1,345
Variable Interest Entity, Primary Beneficiary | Derivative assets | Fair Value, Measurements, Recurring | Level 3
ASSETS
Investments	0	0
Liabilities
Investment liabilities, at fair value	0	0
Variable Interest Entity, Primary Beneficiary | Short term investments | Fair Value, Measurements, Recurring
ASSETS
Investments		5,215
Variable Interest Entity, Primary Beneficiary | Short term investments | Fair Value, Measurements, Recurring | Level 1
ASSETS
Investments		0
Variable Interest Entity, Primary Beneficiary | Short term investments | Fair Value, Measurements, Recurring | Level 2
ASSETS
Investments		5,215
Variable Interest Entity, Primary Beneficiary | Short term investments | Fair Value, Measurements, Recurring | Level 3
ASSETS
Investments		$ 0
Variable Interest Entity, Primary Beneficiary | Repurchase Agreements | Fair Value, Measurements, Recurring
Liabilities
Investment liabilities, at fair value	1,423
Variable Interest Entity, Primary Beneficiary | Repurchase Agreements | Fair Value, Measurements, Recurring | Level 1
Liabilities
Investment liabilities, at fair value	0
Variable Interest Entity, Primary Beneficiary | Repurchase Agreements | Fair Value, Measurements, Recurring | Level 2
Liabilities
Investment liabilities, at fair value	1,423
Variable Interest Entity, Primary Beneficiary | Repurchase Agreements | Fair Value, Measurements, Recurring | Level 3
Liabilities
Investment liabilities, at fair value	0
Variable Interest Entity, Primary Beneficiary | Private Equity Funds, US | Fair Value, Measurements, Recurring
ASSETS
Investments	6,895
Variable Interest Entity, Primary Beneficiary | Private Equity Funds, US | Fair Value, Measurements, Recurring | Level 1
ASSETS
Investments	0
Variable Interest Entity, Primary Beneficiary | Private Equity Funds, US | Fair Value, Measurements, Recurring | Level 2
ASSETS
Investments	0
Variable Interest Entity, Primary Beneficiary | Private Equity Funds, US | Fair Value, Measurements, Recurring | Level 3
ASSETS
Investments	$ 6,895

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