v3.26.1
Variable Interest Entities and Consolidated Investment Products - Assets, Liabilities and Equity of the Fund (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Liabilities      
Redeemable noncontrolling interests $ 86,071 $ 304,263  
Variable Interest Entity, Primary Beneficiary      
ASSETS      
Cash and cash equivalents 16,097 41,060 $ 66,675
Investments 183,240 410,236  
Liabilities      
Investment liabilities, at fair value 6,929 813  
Net CIP assets included in the table above 180,346 434,705  
Net CIP assets (liabilities) not included in the table above 15,293 12,515  
Total Net CIP assets 195,639 447,220  
Artisan’s direct equity investment in CIPs 109,568 142,957  
Variable Interest Entity, Primary Beneficiary | Money market funds | Fair Value, Measurements, Recurring      
ASSETS      
Cash and cash equivalents 4,035 25,282  
Variable Interest Entity, Primary Beneficiary | Money market funds | Fair Value, Measurements, Recurring | Level 1      
ASSETS      
Cash and cash equivalents 4,035 25,282  
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 55,491 151,994  
Liabilities      
Investment liabilities, at fair value 4,556    
Variable Interest Entity, Primary Beneficiary | Equity securities - long position | Fair Value, Measurements, Recurring | Level 1      
ASSETS      
Investments 55,402 151,994  
Liabilities      
Investment liabilities, at fair value 4,556    
Variable Interest Entity, Primary Beneficiary | Equity securities - long position | Fair Value, Measurements, Recurring | Level 2      
ASSETS      
Investments 89 0  
Liabilities      
Investment liabilities, at fair value 0    
Variable Interest Entity, Primary Beneficiary | Equity securities - long position | Fair Value, Measurements, Recurring | Level 3      
ASSETS      
Investments 0 0  
Liabilities      
Investment liabilities, at fair value 0    
Variable Interest Entity, Primary Beneficiary | Fixed income instruments - long position | Fair Value, Measurements, Recurring      
ASSETS      
Investments 125,452 255,610  
Variable Interest Entity, Primary Beneficiary | Fixed income instruments - long position | Fair Value, Measurements, Recurring | Level 1      
ASSETS      
Investments 0 0  
Variable Interest Entity, Primary Beneficiary | Fixed income instruments - long position | Fair Value, Measurements, Recurring | Level 2      
ASSETS      
Investments 121,509 245,974  
Variable Interest Entity, Primary Beneficiary | Fixed income instruments - long position | Fair Value, Measurements, Recurring | Level 3      
ASSETS      
Investments 3,943 9,636  
Variable Interest Entity, Primary Beneficiary | Derivative assets | Fair Value, Measurements, Recurring      
ASSETS      
Investments 2,297 2,632  
Liabilities      
Investment liabilities, at fair value 2,373 813  
Variable Interest Entity, Primary Beneficiary | Derivative assets | Fair Value, Measurements, Recurring | Level 1      
ASSETS      
Investments 1 203  
Liabilities      
Investment liabilities, at fair value 44 2  
Variable Interest Entity, Primary Beneficiary | Derivative assets | Fair Value, Measurements, Recurring | Level 2      
ASSETS      
Investments 2,296 2,429  
Liabilities      
Investment liabilities, at fair value 2,329 811  
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