For unclassified balance sheet, amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business.

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Amount due from parties in nontrade transactions, classified as other.

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Revenue from Contracts with Customers (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Customer assets and liabilities	$ 0		$ 0		$ 0
Disaggregation of Revenue [Line Items]
Contract with Customer, Liability	0		0		0
Revenue from Contract with Customer, Excluding Assessed Tax	200,727,000	$ 212,296,000	387,689,000	$ 424,304,000
Total receivables from contracts with customers	80,533,000		80,533,000		65,622,000
Non-customer receivables	6,675,000		6,675,000		2,069,000
Accounts receivable	87,208,000		87,208,000		67,691,000
Artisan Funds
Disaggregation of Revenue [Line Items]
Total receivables from contracts with customers	6,620,000		6,620,000		5,418,000
Artisan Global Funds
Disaggregation of Revenue [Line Items]
Total receivables from contracts with customers	3,132,000		3,132,000		417,000
Total receivables from contracts with customers
Disaggregation of Revenue [Line Items]
Total receivables from contracts with customers	70,781,000		70,781,000		$ 59,787,000
Management fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	196,400,000	210,029,000	383,264,000	421,995,000
Management fees \| Artisan Funds
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	112,025,000	125,085,000	218,205,000	250,338,000
Management fees \| Artisan Global Funds
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	8,037,000	8,942,000	16,172,000	17,464,000
Management fees \| Total receivables from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	76,338,000	76,002,000	148,887,000	154,193,000
Performance fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	4,327,000	2,267,000	4,425,000	2,309,000
Performance fees \| Total receivables from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 4,327,000	$ 2,267,000	$ 4,425,000	$ 2,309,000