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Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 290,677	$ 202,836
Total receivables from contracts with customers	107,313		$ 97,671
Non-customer receivables	7,726		2,217
Accounts receivable	115,039		99,888
Contract with customer, liability	0		0
Artisan Funds
Disaggregation of Revenue [Line Items]
Total receivables from contracts with customers	9,202		5,227
Artisan Global Funds
Disaggregation of Revenue [Line Items]
Total receivables from contracts with customers	4,664		4,473
Separate Accounts
Disaggregation of Revenue [Line Items]
Total receivables from contracts with customers	93,447		$ 87,971
Management fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	283,965	199,904
Management fees | Artisan Funds
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	165,807	114,679
Management fees | Artisan Global Funds
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	10,864	8,116
Management fees | Separate Accounts
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	107,294	77,109
Performance fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	6,712	2,932
Performance fees | Separate Accounts
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer	$ 6,712	$ 2,932

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Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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