Artisan Partners Asset Management (APAM) 10-K 25 Feb 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document (USD $)	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2014	Feb. 24, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	Artisan Partners Asset Management Inc.
Entity Central Index Key	1517302
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Amendment Flag	FALSE
Document Information [Line Items]
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Public Float		$1,760,665,828
Class A Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding			34,776,571
Class B Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding			21,171,551
Class C Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding			17,510,120

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Condition (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS
Cash and cash equivalents	$182,284	$211,839
Cash and cash equivalents of Launch Equity	0	19,156
Accounts receivable	69,361	64,110
Accounts receivable of Launch Equity	0	7,428
Investment securities	6,712	7,804
Investment securities of Launch Equity	0	63,364
Prepaid expenses	5,892	4,785
Property and equipment, net	16,594	8,760
Restricted cash	925	1,185
Deferred tax assets	562,396	187,907
Other	5,288	5,060
Total assets	849,452	581,398
LIABILITIES, REDEEMABLE PREFERRED UNITS AND STOCKHOLDERS' EQUITY (DEFICIT)
Accounts payable, accrued expenses, and other	21,934	18,828
Accrued incentive compensation	12,973	3,580
Deferred lease obligations	3,608	3,515
Borrowings	200,000	200,000
Class B redemptions payable	14,284	23,026
Amounts payable under tax receivable agreements	489,154	160,663
Payables of Launch Equity	0	7,485
Securities sold, not yet purchased of Launch Equity	0	31,990
Total liabilities	741,953	449,087
Commitments and Contingencies
Additional paid-in capital	93,524	6,388
Retained earnings	16,417	1,401
Accumulated other comprehensive income (loss)	206	378
Total stockholders’ equity	110,876	43,779
Noncontrolling interest - Artisan Partners Holdings	-3,377	38,060
Noncontrolling interest - Launch Equity	0	50,472
Total equity	107,499	132,311
Total liabilities and equity	849,452	581,398
Class A Common Stock
LIABILITIES, REDEEMABLE PREFERRED UNITS AND STOCKHOLDERS' EQUITY (DEFICIT)
Common stock	342	198
Class B Common Stock
LIABILITIES, REDEEMABLE PREFERRED UNITS AND STOCKHOLDERS' EQUITY (DEFICIT)
Common stock	215	253
Class C Common Stock
LIABILITIES, REDEEMABLE PREFERRED UNITS AND STOCKHOLDERS' EQUITY (DEFICIT)
Common stock	172	252
Convertible Preferred Stock [Member]
LIABILITIES, REDEEMABLE PREFERRED UNITS AND STOCKHOLDERS' EQUITY (DEFICIT)
Convertible preferred stock ($0.01 par value per share, 15,000,000 shares authorized, 0 and 1,198,128 shares outstanding at December 31, 2014 and December 31, 2013, respectively)	$0	$34,909

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Condition (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Common stock, shares outstanding	72,927,543	71,484,007	0
Preferred Stock, Shares Outstanding			0
Class A Common Stock
Common stock, par value per share	0.01	0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares outstanding	34,238,131	19,807,436
Class B Common Stock
Common stock, par value per share	0.01	0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares outstanding	21,463,033	25,271,889
Class C Common Stock
Common stock, par value per share	0.01	0.01
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares outstanding	17,226,379	25,206,554
Convertible Preferred Stock [Member]
Convertible preferred stock, par value per share	0.01	0.01
Convertible preferred stock, shares authorized	15,000,000	15,000,000
Preferred Stock, Shares Outstanding	0	1,198,128

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues
Management fees	$827,651	$683,322	$503,954
Performance fees	1,050	2,519	1,624
Total revenues	828,701	685,841	505,578
Compensation and benefits
Salaries, incentive compensation and benefits	350,302	309,163	227,258
Pre-offering related compensation - share-based awards	64,664	404,160	101,682
Pre-offering related compensation - other	0	143,035	54,153
Total compensation and benefits	414,966	856,358	383,093
Distribution and marketing	49,132	38,398	28,990
Occupancy	11,255	10,476	9,251
Communication and technology	21,002	14,426	13,240
General and administrative	25,443	27,387	23,917
Total operating expenses	521,798	947,045	458,491
Total operating income (loss)	306,903	-261,204	47,087
Non-operating income (loss)
Interest expense	-11,572	-11,869	-11,442
Net gains (losses) of Launch Equity	-3,964	10,623	8,817
Loss on debt extinguishment	0	0	-827
Net gain on the valuation of contingent value rights	0	49,570	0
Net investment income	681	5,138	740
Net Loss On The Tax Receivable Agreements	-4,187	0	0
Other non-operating income (loss)	-282	0	-751
Total non-operating income (loss)	-19,324	53,462	-3,463
Income (loss) before income taxes	287,579	-207,742	43,624
Provision for income taxes	48,829	26,390	1,047
Net income (loss) before noncontrolling interests	238,750	-234,132	42,577
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	173,085	-269,562	33,760
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	-3,964	10,623	8,817
Net income attributable to Artisan Partners Asset Management Inc.	$69,629	$24,807	$0
Earnings (loss) per share
Basic and diluted earnings (loss) per share	($0.37)
Weighted average number of common shares outstanding
Weighted Average Number of Shares Outstanding, Basic and Diluted	27,514,394
Dividends declared per class A common share	$3.83

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income (loss) before noncontrolling interests	$238,750	($234,132)	$42,577
Unrealized gain (loss) on investment securities:
Unrealized holding gain (loss) on investment securities, net of tax of ($16), $171 and $0, respectively	-241	3,655	2,335
Less: reclassification adjustment for net gains included in net income	295	4,119	497
Net unrealized gain (loss) on investment securities	-536	-464	1,838
Foreign currency translation gain (loss)	-510	197	133
Total other comprehensive income (loss)	-1,046	-267	1,971
Comprehensive income (loss)	237,704	-234,399	44,548
Comprehensive income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	172,211	-270,207	35,731
Comprehensive income (loss) attributable to noncontrolling interests - Launch Equity	-3,964	10,623	8,817
Comprehensive income attributable to Artisan Partners Asset Management Inc.	$69,457	$25,185	$0

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Tax on unrealized gains on investment securities	($16)	$171	$0

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders’ Equity (USD $)	Total	Common Stock	Convertible Preferred Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income	Noncontrolling Interest Artisan Partners Holding	Noncontrolling Interest Artisan Partners Holding	Deferred Tax Assets [Member]	Redeemable Preferred Units
In Thousands, unless otherwise specified								Noncontrolling interest-Launch Equity
Balance at beginning of period at Dec. 31, 2011	($641,092)	$0	$0	$0	$0	$0	($664,259)	$23,167
Redeemable preferred units, beginning of period at Dec. 31, 2011										357,194
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	1,971						1,971	0		0
Change in noncontrolling interest in consolidated entities, net	4,715						0	4,715		0
Net income (loss)	42,577						33,760	8,817		0
Employee net share settlement	0
Distributions	-80,886						-80,886	0		0
Redeemable preferred units, end of period at Dec. 31, 2012										357,194
Balance at end of period at Dec. 31, 2012	-672,715	0	0	0	0	0	-709,414	36,699
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	1,065						1,065
Modifications of equity award and other pre-offering related compensation	572,471						572,471
Modification of redeemable preferred units	357,194						357,194			-357,194
Initial establishment of contingent value rights liability	-55,440						-55,440
Net income (loss)	-434,342						-434,342
Capital redemption	-16						-16
Distributions	-100,514						-100,514
Redeemable preferred units, end of period at Mar. 12, 2013										0
Balance at end of period at Mar. 12, 2013	-332,297	0	0	0	0	0	-368,996	36,699
Increase (Decrease) in Stockholders' Equity [Roll Forward]
IPO proceeds	353,414						353,414
Attribution of noncontrolling interest at IPO	0	674	74,748	-58,365		662	-17,719
Net income (loss)	200,210				24,807		164,780	10,623
Other comprehensive income - foreign currency translation	524					134	390
Other comprehensive income - available for investments, net of tax	-1,543					-250	-1,293
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax	0			-50,312			50,167		-313
AOCI Adjustment to Reflect Changes in Ownership, Tax Effect						-168
Capital contribution	3,150							3,150
Capital redemption	-76,319						-76,319
Amortization of equity-based compensation	82,946			20,365			62,581
Deferred tax assets, net of amounts payable under tax receivable agreements	36,799			36,799
Issuance of Class A common stock, net of issuance costs	295,502	55		295,447
Issuance of restricted stock awards		16		-16
Purchase of equity and subsidiary equity	0	-1		1
Conversion of preferred stock and exchange of subsidiary equity	-290,885	-41	-39,839	-237,531	-8,785	0	-4,689	0
Distributions	-124,256						-124,256
Dividends	-14,621			0	-14,621
Redeemable preferred units, end of period at Dec. 31, 2013										0
Balance at end of period at Dec. 31, 2013	132,311	703	34,909	6,388	1,401	378	38,060	50,472
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income	-1,046
Net income (loss)	238,750				69,629		173,085	-3,964
Other comprehensive income - foreign currency translation	-510					-255	-255
Other comprehensive income - available for investments, net of tax	-418					-175	-243
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax	0			-10,481			10,105		-118
AOCI Adjustment to Reflect Changes in Ownership, Tax Effect						258
Capital contribution	2,980							2,980
Capital redemption	-49,488							-49,488
Amortization of equity-based compensation	88,256			36,175			52,081
Deferred tax assets, net of amounts payable under tax receivable agreements	64,520			64,520
Issuance of Class A common stock, net of issuance costs	552,289	111		552,178
Issuance of restricted stock awards		14		-14
Employee net share settlement	-302			-136			-166
Purchase of equity and subsidiary equity	-554,129	-85	-21,652	-533,204	0		812
Conversion of preferred stock and exchange of subsidiary equity	0	-14	-13,257	23,289	0	0	-10,018	0
Distributions	-266,838						-266,838
Dividends	-99,804			-45,191	-54,613
Balance at end of period at Dec. 31, 2014	$107,499	$729	$0	$93,524	$16,417	$206	($3,377)	$0

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net income (loss)	$238,750	($234,132)	$42,577
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,250	3,225	2,401
Deferred income taxes	17,569	9,384	0
Reinvested dividends	-364	-1,019	-188
Net gain on the valuation of contingent value rights	0	-49,570	0
Capital gains on the sale of investments, net	-295	-4,119	-551
Net Loss On The Tax Receivable Agreements	4,187	0	0
(Gains) losses of Launch Equity, net	3,964	-10,623	-8,817
Proceeds from sale of investments by Launch Equity	147,862	146,967	60,025
Purchase of investments by Launch Equity	-120,272	-140,664	-59,763
Loss on disposal of property and equipment	362	16	51
Loss on interest rate swap	0	0	69
Loss on debt extinguishment	0	0	827
Amortization of debt issuance costs	448	448	631
Share-based compensation	88,256	655,417	0
Excess tax benefit on share-based awards	-1,114	0	0
Change in assets and liabilities resulting in an increase (decrease) in cash:
Net change in operating assets and liabilities of Launch Equity	18,919	-9,453	-4,870
Accounts receivable	-5,599	-17,739	-6,605
Prepaid expenses and other assets	-1,607	-1,966	-1,845
Accounts payable and accrued expenses	12,638	-2,405	11,396
Class B liability awards	-8,742	-231,480	93,422
Deferred lease obligations	-136	-121	1,296
Net cash provided by operating activities	398,076	112,166	130,056
Cash flows from investing activities
Acquisition of property and equipment	-4,797	-2,359	-2,744
Leasehold improvements	-4,822	-832	-2,721
Proceeds from sale of property and equipment	4	0	0
Proceeds from sale of investment securities	11,610	16,932	4,598
Purchase of investment securities	-10,031	-5,000	0
Change in restricted cash	260	0	-145
Net cash provided by (used in) investing activities	-7,776	8,741	-1,012
Cash flows from financing activities
Partnership distributions	266,838	224,786	80,886
Dividends paid	-99,804	-14,621	0
Interest rate swap	0	0	-1,135
Change in other liabilities	-66	-63	-173
Payment of debt issuance costs	0	0	-2,573
Principle payments on note payable	0	0	-324,789
Proceeds from draw on revolving credit facility	0	0	90,000
Proceeds from issuance of notes payable	0	0	200,000
Repayment under revolving credit facility	0	-90,000	0
Payments Of Amounts Owed Under Tax Receivable Agreement	-4,645	0	0
Net proceeds from issuance of common stock	554,129	653,335	0
Payment of costs directly associated with the issuance of Class A common stock	-2,806	-4,168	0
Purchase of preferred stock and subsidiary equity	-554,129	-296,755
Purchase of Class A common units	0	-76,319	0
Taxes paid related to employee net share settlement	-302	0	0
Capital invested into Launch Equity	2,980	3,150	5,000
Capital distributed by Launch Equity	-49,488	0	-285
Excess tax benefit on share-based awards	1,114	0	0
Net cash provided by (used in) financing activities	-419,855	-50,227	-114,841
Net increase (decrease) in cash and cash equivalents	-29,555	70,680	14,203
Cash and cash equivalents
Beginning of period	211,839	141,159	126,956
End of period	182,284	211,839	141,159
Noncash activity:
Non Cash Transaction Initial Establishment of Deferred Tax Assets	386,700
Initial establishment of amounts payable under tax receivable agreements	328,700
Establishment of contingent value rights	0	55,440	0
Cash Paid For [Abstract]
Income tax paid	30,685	16,449	541
Preferred Stock
Noncash activity:
Issuance of preferred stock	0	74,748	0
Interest Rate Swap
Cash Paid For [Abstract]
Interest paid	0	0	985
Borrowings [Member]
Cash Paid For [Abstract]
Interest paid	11,108	11,423	6,593
IPO [Member]
Noncash activity:
Non Cash Transaction Initial Establishment of Deferred Tax Assets	0	73,574	0
Initial establishment of amounts payable under tax receivable agreements	0	55,358	0
Follow On Offering [Member]
Noncash activity:
Non Cash Transaction Initial Establishment of Deferred Tax Assets	392,058	123,888	0
Initial establishment of amounts payable under tax receivable agreements	$328,667	$105,305	$0

Nature_of_Business_and_Organiz

Nature of Business and Organization	12 Months Ended
	Dec. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and nature of business	Nature of Business
	Artisan Partners Asset Management, Inc. (“APAM” or “Artisan”) is an investment management firm focused on providing high-value added, active investment strategies to sophisticated clients globally. Artisan has six autonomous investment teams that oversee fourteen distinct U.S., non-U.S. and global investment strategies.
	Strategies are offered through multiple investment vehicles to accommodate a broad range of client mandates. Artisan offers its investment management services primarily to institutions and through intermediaries that operate with institutional-like decision-making processes and have long-term investment horizons.
	Organization
	On March 12, 2013, APAM completed its initial public offering (the “IPO”). APAM was formed for the purpose of becoming the general partner of Artisan Partners Holdings LP (“Artisan Partners Holdings” or “Holdings”) in connection with the IPO. Holdings is a holding company for the investment management business conducted under the name “Artisan Partners”. The partnership interests in Holdings consist of GP units, Class A, B, D and E common units. The reorganization (“IPO Reorganization”) established the necessary corporate structure to complete the IPO while at the same time preserving the ability of the firm to conduct operations through Holdings and its subsidiaries. See Note 2, “Reorganization and IPO” for more information on the reorganization and IPO.
	As the sole general partner, APAM controls the business and affairs of Holdings. As a result, APAM consolidates Holdings’ financial statements and records a noncontrolling interest for the economic interests in Holdings held by the limited partners of Holdings. At December 31, 2014, APAM’s total economic interest in Holdings approximated 47% of Holdings’ economics. APAM has been allocated a part of Holdings’ net income since March 12, 2013, when it became Holdings’ general partner.
	Holdings, together with its wholly owned subsidiary, Artisan Investments GP LLC (“AIGP”), controls a 100% interest in Artisan Partners Limited Partnership (“APLP”), a multi-product investment management firm that is the principal operating subsidiary of Artisan Partners Holdings. APLP is registered as an investment adviser with the U.S. Securities and Exchange Commission under the Investment Advisers Act of 1940. APLP provides investment advisory services to separate accounts and pooled investment vehicles, including Artisan Partners Funds, Inc. (“Artisan Funds” or the “Funds”) and Artisan Partners Global Funds PLC (“Artisan Global Funds”). Artisan Funds are a series of fourteen open-end, diversified mutual funds registered under the Investment Company Act of 1940, as amended. Artisan Global Funds is a family of Ireland-domiciled UCITS.
	Artisan Partners Distributors LLC (“APDLLC”) is a wholly-owned subsidiary of Holdings. APDLLC is a limited purpose broker/dealer registered with the Financial Industry Regulatory Authority that serves as distributor of the shares of Artisan Funds and Artisan Global Funds and does not execute trades on behalf of clients. APDLLC is subject to the net capital requirements pursuant to Rule 15c3-1 of the Securities Exchange Act of 1934. At December 31, 2014, APDLLC had a ratio of aggregate indebtedness to net capital of 32% and net capital was $132 thousand, which was $107 thousand in excess of its required net capital of $25 thousand.
	The consolidated financial statements include the accounts of APAM and all of its majority owned and controlled subsidiaries. APAM and its subsidiaries are hereafter referred to collectively as “Artisan” or the “Company”.

Reorganization_and_IPO

Reorganization and IPO	12 Months Ended
	Dec. 31, 2014
Reorganization and Initial Public Offering Disclosures [Abstract]
Reorganization and initial public offering	Reorganization
	In connection with the IPO, APAM and Holdings entered into a series of transactions in order to reorganize their capital structures and complete the IPO. The reorganization transactions included, among others, the following:
	•	Appointment of APAM as the sole general partner of Holdings.
	•	Modification of APAM’s capital structure into three classes of common stock and a series of convertible preferred stock. Shares of Class B common stock, Class C common stock and convertible preferred stock were issued to pre-IPO partners of Holdings. A description of these shares is included in Note 10, “Stockholders’ Equity”.
	•	Merger (the “H&F Corp Merger”) into APAM of a corporation (“H&F Corp”) that at the time of the merger was a holder of preferred units and contingent value rights (“Partnership CVRs”) issued by Holdings and Class C common stock of APAM. As consideration for the merger, the shareholder of H&F Corp received shares of APAM’s convertible preferred stock, contingent value rights (“APAM CVRs”) issued by APAM, and the right to receive an amount of cash equal to H&F Corp’s share of the post-IPO distribution of Holdings pre-IPO retained profits.
	•	Entry by APAM into two tax receivable agreements (“TRAs”), one with the pre-merger shareholder of H&F Corp and the other with each limited partner of Holdings. Pursuant to the first TRA, APAM will pay to the counterparty a portion of certain tax benefits realized by APAM as a result of the H&F Corp Merger. Pursuant to the second TRA, APAM will pay to the counterparties a portion of certain tax benefits realized by APAM as a result of the purchase or exchange of Holdings limited partner units. The TRAs are further described in Note 3, “Summary of Significant Accounting Policies — Tax Receivable Agreements”.
	Because APAM and Holdings were under common control at the time of the reorganization, APAM’s acquisition of control of Holdings was accounted for as a transaction among entities under common control. The consolidated financial statements of APAM reflect the following:
	•	Statements of Financial Condition - The assets, liabilities and equity of Holdings and of APAM have been carried forward at their historical carrying values. The historical partners’ deficit of Holdings is reflected as a noncontrolling interest.
	•	Statements of Operations, Comprehensive Income and Cash Flows - The historical consolidated statements of Holdings have been consolidated with the statements of operations, comprehensive income and cash flows of APAM.
	Modification of Artisan Partners Holdings’ Units
	As part of the IPO Reorganization, the limited partner units of Holdings were modified. In addition to modification of the voting and other rights with respect to each class of units, the following modifications were made to the Class B common units and the preferred units:
	•	The Class B common units of Holdings, which are held by employee-partners, were modified to eliminate a cash redemption feature. Prior to the reorganization, the terms of the Class B unit award agreements required Holdings to redeem the units from a holder whose employment by Artisan had been terminated. As a result of the redemption feature, Artisan was required to account for the Class B units as liability awards. At the time of the IPO, the amount of the liability was increased to $552.0 million to reflect the value implied by the IPO valuation. Thereafter, as a result of the elimination of the redemption feature, Artisan reclassified the entire liability to equity. The vesting of Class B awards that were unvested at the time of the reorganization is reflected as “Pre-offering related compensation — share-based awards” over the remaining vesting period (see Note 11, “Compensation and Benefits”).
	•	The preferred units of Holdings were modified to eliminate the associated put right. In exchange for the elimination of the put right, Holdings issued Partnership CVRs to the holders of the preferred units. The CVRs were classified as liabilities and the preferred units were reclassified to permanent equity after the modification. As discussed above, in conjunction with the H&F Corp Merger, APAM received modified preferred units and partnership CVRs and issued to the shareholder of H&F Corp convertible preferred stock and APAM CVRs. For each outstanding APAM CVR, APAM held one Partnership CVR. The convertible preferred stock and APAM CVRs issued were recorded at the carryover basis of the preferred units and Partnership CVRs originally held by H&F Corp. On November 6, 2013, all of the CVRs were terminated without any payment by APAM or Holdings.
	IPO and Use of Proceeds
	The net proceeds from the IPO were $353.4 million. In connection with the IPO, Artisan used cash on hand to make cash incentive payments aggregating $56.8 million to certain of its portfolio managers. Artisan used a portion of the IPO net proceeds, combined with remaining cash on hand, for the following:
	•	to pay distributions of retained profits in the aggregate amount of $105.3 million to the pre-IPO partners of Holdings;
	•	to repay $90.0 million outstanding under Holdings’ revolving credit agreement (see Note 6, “Borrowings”); and
	•	to purchase for $76.3 million an aggregate of 2,720,823 Class A common units from certain Class A limited partners of Holdings.
	Artisan used the remaining proceeds for general corporate purposes.
	2013 Follow-On Offering
	On November 6, 2013, APAM completed a registered public offering of 5,520,000 shares of Class A common stock (the “2013 Follow-On Offering”) and utilized the entire $296.8 million of net proceeds to purchase 4,152,665 preferred units of Artisan Partners Holdings, APAM’s direct subsidiary, and 1,367,335 shares of APAM convertible preferred stock. The offering and subsequent purchase of shares and units had following impact on the consolidated financial statements:
	•	The CVRs were terminated and the associated $5.9 million liability was eliminated.
	•	APAM received 5,520,000 GP units of Holdings, which increased APAM’s ownership interest in Holdings from 24% to 29%. See Note 8, “Noncontrolling interest - Holdings” for the financial statement impact of changes in ownership.
	•	APAM’s purchase of Holdings’ preferred units with a portion of the net proceeds resulted in an increase to deferred tax assets of approximately $123.9 million and an increase in amounts payable under tax receivable agreements of approximately $105.3 million.
	•	The purchase price of the convertible preferred stock exceeded its carrying value on APAM’s consolidated balance sheet by $32.2 million, which is considered a deemed dividend and is subtracted from net income to calculate income available to common stockholders in the calculation of earnings per share. The purchase of the preferred units resulted in a similar deemed dividend, which reduced net income available to common stockholders by $19.5 million in the calculation of earnings per share.
	2014 Follow-On Offering
	On March 12, 2014, APAM completed a registered public offering of 9,284,337 shares of Class A common stock (the “2014 Follow-On Offering”) and utilized all of the net proceeds to purchase an aggregate of 6,284,337 common units and 2,256,883 preferred units of Artisan Partners Holdings and 743,117 shares of APAM’s convertible preferred stock, at a price per unit or share, as applicable, equal to $62.00 less the underwriting discount per share. The offering and subsequent purchase of shares and units had the following impact on the consolidated financial statements:
	•	APAM received 9,284,337 GP units of Holdings, and APAM’s ownership interest in Holdings increased from 29% to 41%. See Note 8, “Noncontrolling interest - Holdings” for the financial statement impact of changes in ownership.
	•	APAM’s purchase of common and preferred units of Holdings with a portion of the net proceeds resulted in an increase to deferred tax assets of approximately $287.4 million and an increase in amounts payable under tax receivable agreements of approximately $244.3 million.
	•	The purchase price of the convertible preferred stock exceeded its carrying value on APAM’s consolidated balance sheet by $22.7 million, which is considered a deemed dividend and is subtracted from net income to calculate income available to common stockholders in the calculation of earnings per share. The purchase of the preferred units of Holdings resulted in a similar deemed dividend, which also reduced net income available to common stockholders.
	Holdings Unit Exchanges
	On June 16, 2014, affiliates of Hellman & Friedman LLC (the “H&F Funds”) elected to convert 455,011 shares of convertible preferred stock into, and exchange 1,381,887 preferred units of Holdings for, a total of 1,836,898 shares of APAM’s Class A common stock (the “H&F Conversion”). The H&F Funds subsequently sold all 1,836,898 shares of Class A common stock. After the H&F Conversion, there were no longer any outstanding APAM convertible preferred shares or Holdings preferred units.
	Certain limited partners of Artisan Partners Holdings have exchanged common units (along with a corresponding number of shares of Class B or C common stock of APAM) for shares of Class A common stock on a one-for-one basis (the “Holdings Common Unit Exchanges”). The following exchanges occurred during the year ended December 31, 2014:
	•	171,125 Class A common units were exchanged for Class A common stock on June 2, 2014.
	•	1,567,968 Class A common units were exchanged for Class A common stock on August 25, 2014.
	•	10,260 Class B common units were exchanged for Class A common stock on August 25, 2014.
	•	116,571 Class A common units were exchanged for Class A common stock on December 1, 2014.
	The H&F Conversion and Holdings Common Unit Exchanges increased APAM’s ownership interest in Holdings, and resulted in a combined increase to deferred tax assets of approximately $99.3 million and an increase in amounts payable under tax receivable agreements of approximately $84.4 million.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Summary of significant accounting policies	Basis of presentation
	The accompanying consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and related rules and regulations of the SEC. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates or assumptions that affect the reported amounts and disclosures in the financial statements. Actual results could differ from these estimates or assumptions.
	Principles of consolidation
	Artisan’s policy is to consolidate all subsidiaries or other entities in which it has a controlling financial interest and variable interest entities (“VIEs”) of which Artisan is deemed to be the primary beneficiary. The primary beneficiary is deemed to be the entity that has the power to govern the financial and operating policies of the subsidiary so as to obtain benefits from its activities. The consolidated financial statements include the accounts of APAM, all subsidiaries or other entities in which APAM has a direct or indirect controlling financial interest and VIEs of which Artisan is deemed to be the primary beneficiary. All material intercompany balances have been eliminated in consolidation.
	Artisan’s wholly-owned subsidiary, Artisan Partners Alternative Investments GP LLC, was the general partner of Artisan Partners Launch Equity LP (“Launch Equity”), a private investment partnership that was considered a VIE. Launch Equity was considered an investment company and therefore accounted for under Accounting Standard Codification Topic (“ASC”) 946, “Financial Services – Investment Companies”. Artisan had retained the specialized industry accounting principles of this investment company in its consolidated financial statements. Launch Equity was liquidated and dissolved in December 2014. See Note 9, “Variable and Voting Interest Entities” for additional details.
	The Company makes initial seed investments in sponsored investment portfolios at the portfolio’s formation. If the seed investment results in a controlling financial interest, APAM consolidates the investment, and the underlying individual securities are accounted for as trading securities.
	Seed investments in which the Company does not have a controlling financial interest are classified as available-for-sale investments, as described below under “-Investment Securities”. APAM does not have a controlling financial interest in any of the funds in which it has made a seed investment.
	Tax Receivable Agreements (“TRAs”)
	In connection with the IPO, APAM entered into two tax receivable agreements. Under the first TRA, APAM generally is required to pay to a private equity fund controlled by Hellman & Friedman LLC 85% of the applicable cash savings, if any, in U.S. federal, state and local income tax that APAM actually realizes (or is deemed to realize in certain circumstances) as a result of (i) the tax attributes of the preferred units APAM acquired in the merger of a wholly-owned subsidiary of the private equity fund into APAM in March 2013, (ii) net operating losses available as a result of the merger and (iii) tax benefits related to imputed interest.
	Under the second TRA, APAM generally is required to pay to current or former limited partners of Holdings 85% of the applicable cash savings, if any, in U.S. federal, state and local income tax that APAM actually realizes (or is deemed to realize in certain circumstances) as a result of (i) certain tax attributes of their units sold to APAM or exchanged (for shares of Class A common stock or convertible preferred stock) and that are created as a result of the sales or exchanges and payments under the TRAs and (ii) tax benefits related to imputed interest. Under both agreements, APAM generally will retain the benefit of the remaining 15% of the applicable tax savings.
	For purposes of the TRAs, cash savings in tax are calculated by comparing APAM’s actual income tax liability to the amount it would have been required to pay had it not been able to utilize any of the tax benefits subject to the TRAs, unless certain assumptions apply. The TRAs will continue in effect until all such tax benefits have been utilized or expired, unless APAM exercises its right to terminate the agreements or payments under the agreements are accelerated in the event that APAM materially breaches any of its material obligations under the agreements. The actual increase in tax basis, as well as the amount and timing of any payments under these agreements, will vary depending upon a number of factors, including the timing of exchanges by the holders of limited partnership units, the price of the Class A common stock or the value of the convertible preferred stock, as the case may be, at the time of the exchange, whether such exchanges are taxable, the amount and timing of the taxable income APAM generates in the future and the tax rate then applicable and the portion of APAM’s payments under the TRAs constituting imputed interest.
	Payments under the TRAs, if any, will be made pro rata among all TRA counterparties entitled to payments on an annual basis to the extent APAM has sufficient taxable income to utilize the increased depreciation and amortization charges. Artisan expects to make payments under the TRAs, to the extent they are required, within 125 days after APAM’s federal income tax return is filed for each fiscal year. Interest on such payments will begin to accrue at a rate equal to one-year LIBOR plus 100 basis points from the due date (without extension) of such tax return.
	Operating segments
	Artisan operates in one segment, the investment management industry. Artisan provides investment management services to separate accounts and mutual funds and other pooled investment vehicles. Management assesses the financial performance of these vehicles on a combined basis.
	Cash and cash equivalents
	Artisan defines cash and cash equivalents as money market funds and other highly liquid investments with original maturities of 90 days or less. Cash and cash equivalents are stated at cost, which approximates fair value due to the short-term nature and liquidity of these financial instruments. For disclosure purposes, cash and cash equivalents are categorized as Level 1 in the fair value hierarchy. Cash and cash equivalents are subject to credit risk and were primarily maintained in demand deposit accounts with financial institutions or treasury money market funds.
	Cash and cash equivalents of Launch Equity
	Cash and cash equivalents of Launch Equity represent cash and equivalents of Launch Equity, a private investment partnership that was considered a VIE. Launch Equity defined cash and cash equivalents as highly liquid investments which had original maturities of 60 days or less. Cash and cash equivalents of Launch Equity are stated at cost, which approximates fair value. See Note 9, “Variable and Voting Interest Entities”, for additional details.
	Foreign currency translation
	Assets and liabilities of foreign operations whose functional currency is not the U.S. dollar are translated at prevailing year-end exchange rates. Revenue and expenses of such foreign operations are translated at average exchange rates during the year. The net effect of the translation adjustment for foreign operations is included in other comprehensive income (loss) in the Consolidated Statements of Comprehensive Income (Loss). The cumulative effect of translation adjustments is included in Accumulated other comprehensive income (loss) and Noncontrolling interest - Artisan Partners Holdings in the Consolidated Statements of Financial Condition, based on current ownership levels.
	Accounts receivable
	Accounts receivable are carried at invoiced amounts and consist primarily of investment management fees that have been earned, but not yet received from clients. Due to the short-term nature and liquidity of the receivables, the carrying values of these assets approximate fair value. The accounts receivable balance does not include any allowance for doubtful accounts as Artisan believes all accounts receivable balances are fully collectible. There has not been any bad debt expense recorded for the years ended December 31, 2014, 2013 and 2012.
	Accounts receivable of Launch Equity
	Accounts receivable of Launch Equity represented the value of securities sold by Launch Equity but not yet settled. See Note 9, “Variable and Voting Interest Entities”, for additional details.
	Investment securities
	Investment securities consist of investments in mutual funds for which Artisan is the investment adviser and are classified as available-for-sale. These securities include securities held in connection with an incentive compensation plan established during 2011. This incentive compensation plan provided certain portfolio managers with additional cash compensation over a three-year period based on the then-current value of the investment securities, which were shares of mutual funds managed by such portfolio managers. As of December 31, 2013, the plan ended and all related investment securities were sold. Investments provide exposure to various risks, including price risk (the risk of a potential future decline in value of the investment) and foreign currency risk. Investments in registered mutual funds are carried at fair value at their respective net asset values as of the valuation date.
	Unrealized gains (losses) on available-for-sale securities are recorded as a component of Other comprehensive income (loss). Dividend income from these investments is recognized when earned and is included in Net investment income in the Consolidated Statements of Operations. Realized gains (losses) are computed on a specific identification basis and are recorded in Net investment income in the Consolidated Statements of Operations.
	Investment securities of Launch Equity
	Investment securities of Launch Equity represented investments held by Launch Equity. The carrying value of Launch Equity’s investments was also their fair value. Long and short positions in equity securities were valued based upon closing market prices of the security on the principal exchange on which the security is traded. See Note 9, “Variable and Voting Interest Entities”, for additional details.
	Property and equipment
	Property and equipment are carried at cost, less accumulated depreciation. Depreciation is generally recognized on a straight-line basis over the estimated useful lives of the respective assets, which range from three to seven years. Depreciation for leasehold improvements is recognized over the applicable life of the asset class, typically the lesser of the economic useful life of the improvement or the remaining term of the lease. Property and equipment is tested for impairment when there is an indication that the carrying amount of an asset may not be recoverable. When an asset is determined to not be recoverable, the impairment loss is measured based on the excess, if any, of the carrying value of the asset over its fair value.
	Restricted cash
	Restricted cash represents cash that is restricted as collateral on a standby letter of credit related to a lease obligation.
	Derivative instruments
	Artisan used derivative instruments (interest rate swaps) to manage the interest rate exposure related to its $400 million variable rate term loan, which was re-financed in 2012. Artisan originally designated its interest rate swaps as a hedge of the benchmark interest rate on future interest payments to remove the exposure to variations in cash flows related to interest expense. Artisan monitored its position and the credit rating of the counterparties and did not anticipate non-performance by any party to the interest rate swaps.
	The interest rate swaps were carried at fair value. During the year ended December 31, 2011, Artisan discontinued the hedge accounting relationship related to the cash flow hedge. As such, cumulative amounts recorded in Total comprehensive income (loss) were reclassified to current earnings as Other non-operating income (loss). Changes in fair value occurring after the date of discontinuance were recorded as Other non-operating income (loss).
	During the year ended December 31, 2012, Artisan terminated the interest rate swap contract in connection with the repayment of all of the then-outstanding principal amount of the $400 million term loan. Final settlement of the swap contract was $1.1 million. See Note 7, “Derivative Instruments”, for additional details.
	Payables of Launch Equity
	Payables of Launch Equity represented payables for securities purchased by Launch Equity but not yet settled. See Note 9, “Variable and Voting Interest Entities”, for additional details.
	Securities sold, not yet purchased of Launch Equity
	Securities sold, not yet purchased of Launch Equity represented securities, at fair value, sold short by Launch Equity. See Note 9, “Variable and Voting Interest Entities”, for additional details.
	Revenue recognition
	Investment management fees are generally computed as a percentage of average daily assets under management and recognized as earned. Fees for providing investment advisory services are computed and billed in accordance with the provisions of the applicable investment management agreements, generally on a monthly or quarterly basis. The investment management agreements for a small number of accounts provide for performance-based fees. Performance-based fees, if earned, are recognized on the contractually determined measurement date. Performance-based fees generally are not subject to claw back as a result of performance declines subsequent to the most recent measurement date. Investment management fees are presented net of fees waived pursuant to contractual expense limitations.
	Unit-based compensation
	In accordance with the provisions of Artisan Partners Holdings’ partnership agreement and the terms of the corresponding grant agreements, Class B interests reclassified as Class B common units granted to the Class B limited partners of Holdings are generally entitled to pro rata allocations of profits and losses and other items and distributions of cash and other property. Class B common units vest ratably over a five-year vesting period, beginning on the date of grant. Vesting is accelerated upon the occurrence of certain events, including a change in control as defined in the grant agreements.
	Prior to the IPO Reorganization, vested Class B common units were classified as share-based liability awards. Vested Class B common units of a terminated partner were redeemed in cash, generally in annual installments over the five years following termination of employment. The Partnership redeemed the vested Class B common units at a value determined in accordance with the terms of the grant agreement pursuant to which the common units were granted, which included a premium in the case of employment terminated by reason of death, disability or retirement. The redemption value of Class B common units had been calculated assuming a holder’s termination of employment was the result of resignation or involuntary termination by Artisan and had been recorded as Class B liability award in the Consolidated Statements of Financial Condition. For individuals who had given notice of retirement in accordance with their grant agreements and such notice has been accepted by Artisan, the redemption value of the Class B common units had been calculated using the retirement valuation as of the notice date.
	On and after April 6, 2011, compensation cost was measured at the grant date based on the fair value of the common units granted. Compensation cost was recognized as expense over the requisite service period for vesting, typically five years. Compensation cost was re-measured each period with any incremental changes in value subsequent to the grant date expensed over the remaining vesting period. Changes in value that occurred after the end of the vesting period were recorded as compensation cost in the period in which the changes occur through settlement of the common units. Distributions of the Partnership’s net income associated with Class B common units were recorded to Compensation and benefits expense. During 2013, the Class B common units were modified, which eliminated the cash redemption feature and liability classification. See Note 11, “Compensation and Benefits” for details on the modification of these awards.
	Share-based compensation
	Share-based compensation expense is recognized based on grant-date fair value on a straight-line basis over the requisite service period of the awards, adjusted for estimated forfeitures. Forfeiture assumptions are evaluated on a quarterly basis and updated as necessary. The awards generally vest ratably over a five-year vesting period, beginning on the date of grant. Certain awards vest upon a combination of both (1) pro-rata annual time vesting and (2) qualifying retirement (as defined in the award agreements).
	Distribution fees
	Artisan Funds has authorized certain financial services companies, broker-dealers, banks or other intermediaries, and in some cases, other organizations designated by an authorized intermediary to accept purchase, exchange, and redemption orders for shares of Artisan Funds on the funds’ behalf. Many intermediaries charge a fee for accounting and shareholder services provided to fund shareholders on the fund’s behalf. Those services typically include recordkeeping, transaction processing for shareholders’ accounts, and other services. The fee is either based on the number of accounts to which the intermediary provides such services or a percentage of the average daily value of fund shares held in such accounts. The funds pay a portion of such fees directly to the intermediaries, which are intended to compensate the intermediary for its provision of services of the type that would be provided by the fund’s transfer agent or other service providers if the shares were registered directly on the books of the fund’s transfer agent. Artisan pays the balance of those fees which includes compensation to the intermediary for its distribution and marketing of Artisan Funds shares.
	Artisan Global Funds have distribution arrangements pursuant to which Artisan is required to pay a portion of its investment management fee for distribution and marketing of Artisan Global Funds shares. Distribution fees paid by Artisan are presented as an operating expense as Artisan is the principal in its role as the primary obligor related to distribution and marketing services.
	Distribution fees paid to intermediaries were as follows:
		For the Year Ended December 31,
		2014		2013		2012
	Total intermediary fees incurred	$	133,745	$	112,360	$	88,818
	Less: fees incurred by Artisan Funds	89,372		78,036		62,736
	Fees incurred by Artisan	44,373		34,324		26,082
	Other marketing expenses	4,759		4,074		2,908
	Total distribution and marketing	$	49,132	$	38,398	$	28,990
	Accrued fees to intermediaries were $6.6 million and $5.4 million as of December 31, 2014 and 2013, respectively, and are included in Accounts payable, accrued expenses and other liabilities in the Consolidated Statements of Financial Condition.
	Leases
	Rent under non-cancelable operating leases with scheduled rent increases and decreases is accounted for on a straight-line basis over the lease term, beginning on the date of initial possession or the effective date of the lease agreement. Allowances and other lease incentives provided by Artisan’s landlords are amortized on a straight-line basis as a reduction of rent expense. The difference between straight-line rent expense and rent paid and the unamortized deferred lease costs and build-out allowances are recorded as Deferred lease obligations in the Consolidated Statements of Financial Condition.
	Loss contingencies
Artisan considers the assessment of loss contingencies as a significant accounting policy because of the significant uncertainty relating to the outcome of any potential legal actions and other claims and the difficulty of predicting the likelihood and range of the potential liability involved, coupled with the material impact on Artisan’s results of operations that could result from legal actions or other claims and assessments.
Artisan recognizes estimated costs to defend as incurred. Potential loss contingencies are reviewed at least quarterly and are adjusted to reflect the impact and status of settlements, rulings, advice of counsel and other information pertinent to a particular matter. Significant differences could exist between the actual cost required to investigate, litigate and/or settle a claim or the ultimate outcome of a suit and management’s estimate. These differences could have a material impact on Artisan’s results of operations, financial position, or cash flows. Recoveries of losses are recognized in the Consolidated Statements of Operations when receipt is deemed probable. No loss contingencies were recorded at December 31, 2014, 2013, and 2012. There is currently no litigation in process or outstanding.
Income taxes
As a limited partnership, Artisan Partners Holdings has not made a provision for income taxes because it is not subject to Federal income tax and certain state income taxes. It is the responsibility of Artisan Partners Holdings’ partners to separately report their proportionate share of Artisan Partners Holdings’ taxable income or loss.
As a result of the IPO, APAM became subject to U.S. C-corporation federal and state income taxes on its allocable portion of the income of Artisan Partners Holdings. During the year ended December 31, 2012, APAM was not allocated any of Holdings’ income and therefore did not incur any U.S. income tax.
Artisan accounts for income taxes under the liability method, which requires the recognition of deferred tax assets and liabilities for the future tax consequences attributable to temporary differences between the financial statement carrying amounts and tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be realized or settled. Artisan recognizes a valuation allowance if it is more likely than not that some portion or all of the deferred tax assets will not be realized.
Artisan accounts for uncertain income tax positions by recognizing the impact of a tax position in its consolidated financial statements when Artisan believes it is more likely than not that the tax position would not be sustained upon examination by the appropriate tax authorities based on the technical merits of the position.
Comprehensive income (loss)
Total comprehensive income (loss) includes net income and other comprehensive income. Other comprehensive income (loss) consists of the change in unrealized gains (losses) on available-for-sale investments and foreign currency translation, net of related tax effects. The tax effects of components of other comprehensive income (loss) is calculated on the portion of comprehensive income (loss) attributable to APAM.
Partnership distributions
Artisan makes distributions to its partners (or former partners) for purposes of paying income taxes as required under the terms of Artisan Partners Holdings’ partnership agreement. Tax distributions are calculated utilizing the highest combined individual federal, state and local income tax rate among the various locations in which the partners (or former partners), as a result of owning their interests in the partnership, are subject to tax, assuming maximum applicability of the phase-out of itemized deductions contained in the Internal Revenue Code. Artisan also makes additional distributions under the terms of the partnership agreement. Distributions are recorded in the financial statements on the declaration date. Partnership distributions, excluding distributions to APAM, totaled $266.8 million, $290.5 million and $135.0 million for the years ended December 31, 2014, 2013, and 2012, respectively, and are reported either as Pre-offering related compensation-other within the Consolidated Statements of Operations or Partnership distributions within the Consolidated Statements of Changes in Stockholders’ Equity, depending on the timing of distributions.
Earnings per Share
Basic and diluted earnings per share is computed under the two-class method by dividing income available to Class A common stockholders by the weighted average number of Class A common shares outstanding during the period. Unvested restricted shares are excluded from the number of Class A common shares outstanding for the basic earnings per share calculation because the shares have not yet been earned by employees. Income available to Class A common stockholders is computed by reducing net income attributable to APAM by dividends declared or paid to convertible preferred stockholders during the period and earnings (distributed and undistributed) allocated to participating securities, according to their respective rights to participate in those earnings. All income for the periods prior to the IPO was entirely allocable to noncontrolling interests. As a result, only net income attributable to APAM from the period subsequent to the IPO is included in net income (loss) available to Class A common stockholders. Class B and Class C common shares do not share in profits of APAM and therefore are not reflected in the calculations.
Diluted earnings per share is computed by increasing the denominator by the amount of additional Class A common shares that would have been outstanding if all potential Class A common shares had been issued. The numerator is also increased for the net income allocated to the potential Class A common shares.
Potential dilutive Class A common shares consist of (1) the Class A common shares issuable upon exchange of Holdings limited partnership units for APAM Class A common stock, (2) the Class A common shares issuable upon conversion of APAM convertible preferred stock and (3) unvested restricted shares of Class A common stock. In periods of net loss available to common stockholders, all of these securities are anti-dilutive.
Recent accounting pronouncements
In March 2013, the FASB issued ASU 2013-05, Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity. The ASU clarifies the interaction between ASC 810-10, Consolidation-Overall, and ASC 830-30, Foreign Currency Matters-Translation of Financial Statements, when releasing the cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business (other than a sale of in substance real estate or conveyance of oil and gas mineral rights) within a foreign entity. The ASU was adopted prospectively on January 1, 2014 and did not have an impact on the Company’s consolidated financial statements.
In June 2013, the FASB issued ASU 2013-08, Investment Companies (Topic 946). The ASU changes the approach to the investment company assessment in Topic 946, clarifying the characteristics of an investment company and provides comprehensive guidance for assessing whether an entity is an investment company. This update would also require an investment company to measure noncontrolling ownership interests in other investment companies at fair value rather than using the equity method of accounting and to include additional disclosures. The ASU was adopted prospectively on January 1, 2014 and did not have an impact on the Company’s consolidated financial statements.
In April 2014, the FASB issued ASU 2014-08, Presentation of Financial Statements and Property, Plant, and Equipment - Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. ASU 2014-08 modified the definition of discontinued operations by limiting discontinued operations reporting to disposals of components of an entity that represent strategic shifts that have (or will have) a major effect on an entity’s operations and financial results. The ASU was adopted prospectively during the year ended December 31, 2014.
In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes existing accounting standards for revenue recognition and creates a single framework. The new guidance will be effective on January 1, 2017, and requires either a retrospective or a modified retrospective approach to adoption. Early application is prohibited. The Company is currently evaluating its transition method and the potential impact on its consolidated financial statements.
In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. The ASU will explicitly require management to assess an entity’s ability to continue as a going concern, and to provide related footnote disclosure in certain circumstances. The new guidance will be effective for the year ending December 31, 2016. Early adoption is permitted. The Company does not expect the adoption of this ASU to have an impact on its consolidated financial statements.
In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis. The ASU modifies existing consolidation guidance for determining whether certain legal entities should be consolidated. The new guidance will be effective on January 1, 2016, and requires either a retrospective or a modified retrospective approach to adoption. Early adoption is permitted. The Company is currently evaluating the potential impact on its consolidated financial statements.

Investment_Securities

Investment Securities	12 Months Ended
	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Investment securities	The disclosures below include details of Artisan’s investments. Investments held by Launch Equity are described in Note 9, “Variable and Voting Interest Entities”.
		Cost		Unrealized		Unrealized			Fair Value
				Gains		Losses
	31-Dec-14
	Mutual funds	$	5,618	$	1,096	$	(2	)	$	6,712
	31-Dec-13
	Mutual funds	$	6,190	$	1,614	$	—		$	7,804
	Artisan’s investments in mutual funds consist of investments in shares of Artisan Partners Funds, Inc. and Artisan Partners Global Funds plc and are considered to be available-for-sale securities. As a result, unrealized gains (losses) are recorded to other comprehensive income (loss). Dividends, including capital gain distributions, earned on mutual fund investments totaled $0.4 million, $1.0 million, and $0.2 million for the years ended December 31, 2014, 2013 and 2012, respectively. During the year ended December 31, 2014, Artisan made an investment of $10.0 million in Artisan High Income Fund, a series of Artisan Partners Funds, Inc., and sold $11.3 million of its investments. Realized gains on the sale of investment securities totaled $0.3 million, $4.1 million and $0.5 million for the years ended December 31, 2014, 2013 and 2012, respectively.
	As of December 31, 2014, the total fair value of investments in an unrealized loss position was $38 thousand. The $2 thousand unrealized losses on available-for-sale securities are considered temporary, based on the severity and duration of the unrealized
	losses. No impairment losses were recorded on these available-for-sale securities.
	As of December 31, 2013, Artisan held no available-for-sale securities in an unrealized loss position.

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair Value Measurements	The table below presents information about Artisan’s assets and liabilities that are measured at fair value and the valuation techniques Artisan utilized to determine such fair value. The fair value of financial instruments held by Launch Equity is presented in Note 9, “Variable and Voting Interest Entities”. In accordance with ASC 820, fair value is defined as the price that Artisan would receive upon selling an investment in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. The following three-tier fair value hierarchy prioritizes the inputs used in measuring fair value:
	•	Level 1 – Observable inputs such as quoted (unadjusted) market prices in active markets for identical securities.
	•	Level 2 – Other significant observable inputs (including but not limited to quoted prices for similar instruments, interest rates, prepayment speeds, credit risk, etc.).
	•	Level 3—Significant unobservable inputs (including Artisan’s own assumptions in determining fair value).
	The following provides the hierarchy of inputs used to derive fair value of Artisan’s assets and liabilities that are financial instruments as of December 31, 2014 and 2013:
		Assets and Liabilities at Fair Value
		Total			Level 1		Level 2		Level 3
	31-Dec-14
	Assets
	Cash equivalents	$	44,004		$	44,004	$	—	$	—
	Mutual funds	6,712			6,712		—		—
	31-Dec-13
	Assets
	Cash equivalents	$	105,001		$	105,001	$	—	$	—
	Mutual funds	7,804			7,804		—		—
	Fair values determined based on Level 1 inputs utilize quoted market prices for identical assets. Level 1 assets generally consist of money market funds, marketable open-end mutual funds and UCITS. There were no Level 2 or Level 3 assets or liabilities recorded at fair value as of December 31, 2014 and 2013.
	Artisan’s policy is to recognize transfers in and transfers out of the valuation levels as of the beginning of the reporting period. There were no transfers between Level 1, Level 2 or Level 3 securities during the years ended December 31, 2014 and 2013.
	Contingent Value Rights (“CVRs”)
	As part of the IPO Reorganization, Holdings issued Partnership CVRs and APAM issued APAM CVRs to the holders of Holdings’ preferred units and APAM’s convertible preferred stock, respectively. APAM held one Partnership CVR for each APAM CVR outstanding. On November 6, 2013, the CVRs were terminated with no amounts paid or payable by Artisan.
	The CVRs were considered derivative instruments under ASC 815, Derivatives and Hedging, and accordingly were recorded as a liability at fair value on the balance sheet until they were terminated on November 6, 2013. Changes in the fair value of these derivative instruments have been recorded in earnings as a net gain (loss) on the valuation of contingent value rights in the period of change.
	Because the CVRs did not have a market price, the fair value of the CVR liability was determined using a Monte Carlo pricing model. Monte Carlo simulation values complex derivative instruments by simulating various path-dependent conditions. The observable and unobservable assumptions used in the pricing model to estimate future stock prices at the termination date are included in the table below. Artisan’s nonperformance or credit risk was embodied within the Monte Carlo pricing model through the discount rate assumption. As of November 6, 2013, there were no changes in credit risk that would have had an adverse impact on the CVR valuation. The development and determination of the unobservable inputs for Level 3 fair value measurements and fair value calculations are the responsibility of Artisan’s management.
	Significant unobservable inputs include expected volatility, dividend yield rate, and discount rate. Significant increases in the discount rate and expected volatility would result in a significantly lower fair value measurement. Significant increases in the dividend yield rate would result in a significantly higher fair value measurement.
		6-Nov-13
	Observable assumptions:
	Price per share of Class A common stock	$	61.25
	Remaining term of CVRs	2.68 years
	Unobservable assumptions:
	Expected price volatility of Class A common stock	32		%
	Dividend yield rate	4.4		%
	Discount rate	5		%
	The unobservable assumptions were derived as follows:
	•	Expected price volatility of Class A common stock - based on the average historical 2.68-year volatility of a peer group of public companies selected by management.
	•	Dividend yield rate - based on management’s assumptions of future dividends on Class A common stock and the price per share of Class A common stock.
	•	Discount rate - based on the average of Artisan’s borrowing rate and similar rates observed among a peer group of public companies selected by management.
	As of November 6, 2013, the fair value of the CVRs was $5.9 million based on the assumptions above. For the year ended December 31, 2013, gains of $49.6 million were recorded in other non-operating gains (losses) to reflect a decrease in the estimated fair value of the CVRs. On November 6, 2013, the CVRs were terminated and the liability was eliminated.
	The following table is a reconciliation of the beginning and ending balance of the liability measured at fair value using significant unobservable inputs (Level 3) as of December 31, 2013:
	Balance at December 31, 2012	$	—
	Issuance of contingent value rights	55,440
	(Gains) losses included in earnings	(49,570		)
	Liability extinguished upon termination	5,870
	Balance at December 31, 2013	$	—

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Borrowings	Artisan’s borrowings consist of the following as of December 31, 2014 and 2013:
		Maturity		Outstanding Balance		Interest Rate Per Annum
	Revolving credit agreement	Aug-17		—		NA
	Senior notes
	Series A	Aug-17		60,000		4.98	%
	Series B	Aug-19		50,000		5.32	%
	Series C	Aug-22		90,000		5.82	%
	Total borrowings			$	200,000
	The fair value of borrowings was approximately $204.4 million as of December 31, 2014. Fair value was determined based on future cash flows, discounted to present value using current market interest rates. The inputs are categorized as Level 2 in the fair value hierarchy, as defined in Note 5, “Fair Value Measurements”.
	Senior notes - On August 16, 2012, Holdings issued $200.0 million in senior unsecured notes and entered into a $100.0 million five-year revolving credit agreement. The proceeds were used to repay the entire outstanding principal of an existing term loan. The fixed interest rate on each series of unsecured notes is subject to a one percentage point increase in the event Holdings receives a below-investment grade rating and any such increase will continue to apply until an investment grade rating is received. The unsecured notes and the revolving credit agreement contain certain restrictive financial covenants including a limitation on the leverage ratio of Holdings and a minimum interest coverage ratio.
	Revolving credit agreement - Any loans outstanding under the revolving credit agreement bear interest at a rate equal to, at the Company’s election, (i) LIBOR adjusted by a statutory reserve percentage plus an applicable margin ranging from 1.50% to 3.00%, depending on Holdings’ leverage ratio (as defined in the revolving credit agreement) or (ii) an alternate base rate equal to the highest of (a) prime rate plus 0.50%, (b) the federal funds effective rate plus 0.50%, and (c) the daily one-month LIBOR adjusted by a statutory reserve percentage plus 1.00%, plus, in each case, an applicable margin ranging from 0.50% to 2.00%, depending on Holdings’ leverage ratio. Unused commitments under the revolving credit agreement bear interest at a rate that ranges from 0.175% to 0.625%, depending on Holdings’ leverage ratio.
	In connection with the closing of the IPO, Artisan paid all of the then-outstanding principal amount of loans under the revolving credit agreement. As of December 31, 2014, there were no borrowings outstanding under the revolving credit agreement and the interest rate on the unused commitment was 0.175%.
	Interest expense incurred on the term loan, unsecured notes and revolving credit agreement was $11.1 million, $11.4 million and $10.1 million for the years ended December 31, 2014, 2013 and 2012, respectively.
	As of December 31, 2014, the aggregate maturities of debt obligations, based on their contractual terms, are as follows:
	2015	$	—
	2016	—
	2017	60,000
	2018	—
	2019	50,000
	Thereafter	90,000
		$	200,000

Derivative_Instruments

Derivative Instruments	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Prior to August 16, 2012, Holdings was a party to a forward starting interest rate swap that had a total notional value of $200 million upon issuance, a start date of July 1, 2011, and a final maturity date of July 1, 2013. The counter-party under this forward starting interest rate swap contract paid Holdings variable interest at the three-month LIBOR rate, and Holdings paid the counterparty a fixed interest rate of 1.04%. This forward starting interest rate swap effectively converted the amended term loan into fixed rate debt to the extent of the notional value of the swap contract, in order to manage interest rate risk on the amended term loan. On December 14, 2011, Holdings discontinued the hedge accounting treatment of the swap because the hedged forecasted transaction was no longer probable of occurring. All prospective fair value changes of the derivative were recognized in earnings. On August 16, 2012, Holdings terminated the swap in connection with the repayment of the entire then-outstanding principal amount of the term loan and made a required final swap settlement payment of $1.1 million. Net interest expense incurred on the interest rate swap was $0.7 million for the year ended December 31, 2012.
	See Note 5, “Fair Value Measurements” for information regarding the contingent value rights.
	The following table presents gains (losses) recognized on derivative instruments for the years ended December 31, 2014, 2013 and 2012:
			For the Year Ended December 31,
			2014				2013				2012
		Income Statement Classification	Gains		Losses		Gains		Losses		Gains		Losses
	Contingent value rights	Net gain on the valuation of contingent value rights	$	—	$	—	$	49,570	$	—	$	—	$	—
	Interest rate swap	Other non-operating income (loss)	—		—		—		—		—		$	(69	)
	Total		$	—	$	—	$	49,570	$	—	$	—	$	(69	)

Noncontrolling_Interest_Holdin

Noncontrolling Interest - Holdings	12 Months Ended
	Dec. 31, 2014
Noncontrolling Interest [Abstract]
Noncontrolling interest - Artisan Partners Holdings	Holdings is the predecessor of APAM for accounting purposes, and its consolidated financial statements are Artisan’s historical financial statements for periods prior to March 12, 2013, the date on which APAM became the general partner of Holdings. As of December 31, 2014, APAM held approximately 47% of the economic interests in Holdings.
	Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings in the Consolidated Statements of Operations represents the portion of earnings or loss attributable to the economic interests in Holdings held by the limited partners of Holdings. All income for the periods prior to March 12, 2013, is entirely attributable to noncontrolling interests.
	During the year ended December 31, 2014, APAM’s ownership interest in Holdings increased from 29% to 47%, due to the following transactions:
	•	The issuance of 1,444,688 Holdings GP units corresponding to 1,444,688 restricted shares of Class A common stock issued by APAM during the period.
	•	The issuance of 9,284,337 Holdings GP units corresponding to the 9,284,337 shares of Class A common stock issued in the 2014 Follow-On Offering.
	•	APAM’s purchase and cancellation of 6,284,337 common units and 3,000,000 preferred units of Holdings in connection with the 2014 Follow-On Offering.
	•	The issuance of 1,381,887 Holdings GP units and cancellation of 1,381,887 Holdings preferred units, corresponding to the 1,381,887 shares of Class A common stock issued in connection with the H&F Conversion.
	•	The issuance of 1,865,924 Holdings GP units and cancellation of 1,865,924 Holdings common units, in connection with the Holdings Common Unit Exchanges.
	During the year ended December 31, 2013, APAM’s ownership interest in Holdings increased from 24% to 29%, due to the following transactions:
	•	The issuance of 1,575,157 Holdings’ GP units corresponding to 1,575,157 restricted shares of Class A common stock issued by APAM during the period.
	•	The issuance of 5,520,000 Holdings’ GP units corresponding to the 5,520,000 shares of Class A common stock issued in the 2013 Follow-On Offering.
	•	APAM’s purchase and cancellation of 4,152,665 common units and 1,367,335 common preferred units of Holdings in connection with the 2013 Follow-On Offering.
	•	The forfeiture of 82,655 common units of Holdings as a result of the termination of employment of employee-partners.
	Since APAM continues to have a controlling interest in Holdings, changes in ownership of Holdings are accounted for as equity transactions. Additional paid-in capital and Noncontrolling interest - Artisan Partners Holdings in the Consolidated Statements of Financial Condition are adjusted to reallocate Holdings’ historical deficit to reflect the change in APAM’s ownership of Holdings.
	The changes in ownership had the following impact on the Consolidated Statements of Financial Condition:
	Statement of Financial Condition	For the Year Ended December 31,
		2014			2013
	Additional paid-in capital	$	(10,481	)	$	(50,312	)
	Noncontrolling interest - Artisan Partners Holdings	10,105			50,167
	Accumulated other comprehensive income	258			(168		)
	Deferred tax assets	118			313
	Net balance sheet impact	—			—

Variable_and_Voting_Interest_E

Variable and Voting Interest Entities	12 Months Ended
	Dec. 31, 2014
Variable Interest Entity, Measure of Activity [Abstract]
Variable and voting interest entities	Artisan Funds and Artisan Global Funds
	Artisan serves as the investment adviser for Artisan Partners Funds, Inc. (“Artisan Funds”), a family of mutual funds registered with the SEC under the Investment Company Act of 1940, and Artisan Partners Global Funds plc (“Artisan Global Funds”), a family of Ireland-based UCITS. Artisan Funds and Artisan Global Funds are corporate entities the business and affairs of which are managed by their respective boards of directors. The shareholders of the funds retain all voting rights, including the right to elect and reelect members of their respective boards of directors. As a result, each of these entities is a voting interest entity (“VOE”). While Artisan holds, in limited cases, direct investments in a fund (which are made on the same terms as are available to other investors and do not represent a majority voting interest in any fund), Artisan does not have a controlling financial interest or a majority voting interest and, as such, does not consolidate these entities.
	Artisan Partners Launch Equity LP
	APLP had an agreement to serve as the investment manager of Artisan Partners Launch Equity Fund LP (“Launch Equity”), which was a private investment partnership in which the investors were certain employees or former employees (or entities beneficially owned by such persons) of Artisan Partners Holdings. Artisan Partners Alternative Investments GP LLC (“Artisan Alternatives”), a wholly-owned subsidiary of Holdings, was the general partner of Launch Equity.
	In December 2014, Launch Equity was liquidated and the net assets were distributed as a return of capital to all limited partners of the fund, including Artisan Partners Alternative Investments GP LLC, which received proceeds of $1 thousand. The fair value of the consideration distributed was equal to the carrying amount of Launch Equity’s net assets on the date of liquidation. As a result, no gain or loss was recorded in connection with the transaction.
	Prior to the dissolution, Launch Equity was determined to be a variable interest entity (“VIE”) which required consolidation within Artisan’s consolidated financial statements.
	Prior to the dissolution, Artisan served as the investment adviser for Launch Equity, a private investment partnership which sought to achieve returns primarily through capital appreciation, while also mitigating market risk through the use of hedging strategies. Artisan had the right to receive management fees as compensation for services provided as the investment adviser. Artisan also maintained, through Artisan Partners Alternative Investments GP LLC, a direct equity investment in the fund and had the right to receive an allocation of profits based upon Launch Equity’s net capital appreciation during a fiscal year. Each of these represented a variable interest in the fund.
	The limited partners of Launch Equity were certain Artisan employees and former employees and were considered related parties. Artisan determined that Launch Equity was a VIE as (a) the voting rights of the limited partners were not proportional to their obligations to absorb expected losses and rights to receive expected residual returns and (b) substantially all of Launch Equity’s activities either involved or were conducted on behalf of the limited partners (the investors that had disproportionately few voting rights) and their related parties (including Artisan).
	As an investment company, Launch Equity qualified for deferral of the current consolidation guidance for VIEs. The guidance applicable to investment companies required an analysis of which party, through holding interests directly or indirectly in the entity or contractually through other variable interests, such as management fees and incentive allocations, would absorb a majority of the expected variability of the entity. In determining whether Artisan was the primary beneficiary of Launch Equity, both qualitative and quantitative factors such as voting rights of the equity holders, economic participation of all parties, including how fees were earned, related party ownership and the level of involvement Artisan had in the design of the VIE, were considered. It was concluded that Artisan was the primary beneficiary as the related party group absorbed a majority of the variability associated with Launch Equity and Artisan was the member within the related party group that was most closely associated with the VIE. Although Artisan had only a minimal equity investment in Launch Equity, as the general partner, it controlled Launch Equity’s management and affairs. As a result, it was concluded that Artisan was the primary beneficiary of Launch Equity and its results are included in Artisan’s consolidated financial statements.
	Artisan’s maximum exposure to investment loss from its involvement with Launch Equity was limited to its equity investment of $1 thousand while the potential benefit was limited to the management and incentive fees received as investment adviser. Therefore, the gains or losses of Launch Equity did not have a significant impact on Artisan’s results of operations, liquidity or capital resources. Artisan had no right to the benefits from, nor did it bear the risks associated with, Launch Equity’s investments, beyond Artisan’s minimal direct investment in Launch Equity.
	The following tables reflect the impact of consolidating Launch Equity’s assets and liabilities into the Consolidated Statement of Financial Condition as of December 31, 2013 and results into the Consolidated Statement of Operations for the years ended December 31, 2014, 2013 and 2012:
	Condensed Consolidating Statements of Financial Condition
		December 31, 2013
		Before			Launch Equity			Eliminations			As Reported
		Consolidation
	Cash and cash equivalents	$	211,839		$	—		$	—		$	211,839
	Cash and cash equivalents of Launch Equity	—			19,156			—			19,156
	Accounts receivable	64,110			—			—			64,110
	Accounts receivable of Launch Equity	—			7,428			—			7,428
	Investment securities of Launch Equity	1			63,364			(1		)	63,364
	Other assets	215,501			—			—			215,501
	Total assets	$	491,451		$	89,948		$	(1	)	$	581,398
	Payables of Launch Equity	$	—		$	7,485		$	—		$	7,485
	Securities sold, not yet purchased of Launch Equity	—			31,990			—			31,990
	Other liabilities	409,612			—			—			409,612
	Total liabilities	409,612			39,475			—			449,087
	Total stockholders’ equity	43,779			—			—			43,779
	Noncontrolling interest - Artisan Partners Holdings	38,060			1			(1		)	38,060
	Noncontrolling interest - Launch Equity	—			50,472			—			50,472
	Total equity	81,839			50,473			(1		)	132,311
	Total liabilities and equity	$	491,451		$	89,948		$	(1	)	$	581,398
	Condensed Consolidating Statement of Operations
		For the Year Ended
		December 31, 2014
		Before			Launch Equity			Eliminations			As Reported
		Consolidation
	Total revenues	$	829,155		$	—		$	(454	)	$	828,701
	Total operating expenses	522,252			—			(454		)	521,798
	Operating income (loss)	306,903			—			—			306,903
	Non-operating income (loss)	(15,360		)	—			—			(15,360		)
	Net gains of Launch Equity	—			(3,964		)	—			(3,964		)
	Total non-operating income (loss)	(15,360		)	(3,964		)	—			(19,324		)
	Income (loss) before income taxes	291,543			(3,964		)	—			287,579
	Provision for income taxes	48,829			—			—			48,829
	Net income (loss)	242,714			(3,964		)	—			238,750
	Less: Net income attributable to noncontrolling interests - Artisan Partners Holdings	173,085			—			—			173,085
	Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	—			(3,964		)	—			(3,964		)
	Net income attributable to Artisan Partners Asset Management Inc.	$	69,629		$	—		$	—		$	69,629
	Condensed Consolidating Statement of Operations
		For the Year Ended
		December 31, 2013
		Before			Launch Equity			Eliminations			As Reported
		Consolidation
	Total revenues	$	688,333		$	—		$	(2,492	)	$	685,841
	Total operating expenses	949,537			—			(2,492		)	947,045
	Operating income (loss)	(261,204		)	—			—			(261,204		)
	Non-operating income (loss)	42,839			—			—			42,839
	Net gains of Launch Equity	—			10,623			—			10,623
	Total non-operating income (loss)	42,839			10,623			—			53,462
	Income (loss) before income taxes	(218,365		)	10,623			—			(207,742		)
	Provision for income taxes	26,390			—			—			26,390
	Net income (loss)	(244,755		)	10,623			—			(234,132		)
	Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	(269,562		)	—			—			(269,562		)
	Less: Net income attributable to noncontrolling interests - Launch Equity	—			10,623			—			10,623
Net income attributable to Artisan Partners Asset Management Inc.	$	24,807		$	—		$	—		$	24,807
Condensed Consolidating Statement of Operations
	For the Year Ended
	December 31, 2012
	Before			Launch Equity			Eliminations			As Reported
	Consolidation
Total revenues	$	506,982		$	—		$	(1,404	)	$	505,578
Total operating expenses	459,895			—			(1,404		)	458,491
Operating income (loss)	47,087			—			—			47,087
Non-operating income (loss)	(12,280		)	—			—			(12,280		)
Net gains of Launch Equity	—			8,817			—			8,817
Total non-operating income (loss)	(12,280		)	8,817			—			(3,463		)
Income (loss) before income taxes	34,807			8,817			—			43,624
Provision for income taxes	1,047			—			—			1,047
Net income (loss)	33,760			8,817			—			42,577
Less: Net income attributable to noncontrolling interests - Artisan Partners Holdings	33,760						—			33,760
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	—			8,817			—			8,817
Net income attributable to Artisan Partners Asset Management Inc.	$	—		$	—		$	—		$	—
The carrying value of Launch Equity’s consolidated investments was also their fair value. Short and long positions on investment securities were valued based upon closing market prices of the security on the principal exchange on which they were traded. Investments in investment companies were valued at their respective net asset values on the valuation date. Short-term investments, other than repurchase agreements, maturing within sixty days from the valuation date were valued at amortized cost, which approximated market value.
The following table presents the fair value hierarchy levels of investments and liabilities held by Launch Equity which were measured at fair value as of December 31, 2013:
	Assets and Liabilities at Fair Value:
	Total			Level 1			Level 2			Level 3
31-Dec-13
Assets
Investment securities – long position	$	63,364		$	63,364		$	—		$	—
Liabilities
Investment securities – short position	$	31,990		$	31,990		$	—		$	—

Stockholders_Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2014
Stockholders' Equity Note [Abstract]
Shareholder's equity	As of December 31, 2014, APAM had the following authorized and outstanding equity:
					Outstanding
		Authorized			31-Dec-14			31-Dec-13			Voting Rights (1)	Economic Rights
	Common shares
	Class A, par value $0.01 per share	500,000,000			34,238,131			19,807,436			1 vote per share	Proportionate
	Class B, par value $0.01 per share	200,000,000			21,463,033			25,271,889			5 votes per share	None
	Class C, par value $0.01 per share	400,000,000			17,226,379			25,206,554			1 vote per share	None
	Preferred shares
	Convertible preferred, par value $0.01 per share	15,000,000			—			1,198,128			1 vote per share	Proportionate
	(1) The Company’s employees to whom Artisan has granted equity have entered into a stockholders agreement with respect to all shares of APAM common stock they have acquired from the Company and any shares they may acquire from the Company in the future, pursuant to which they granted an irrevocable voting proxy to a Stockholders Committee. As of December 31, 2014, Artisan’s employees held 2,700,634 shares of Class A common stock subject to the agreement and all 21,463,033 outstanding shares of Class B common stock.
	APAM is dependent on cash generated by Holdings to fund any dividends. Generally, Holdings will make distributions to all of its partners, including APAM, based on the proportionate ownership each holds in Holdings. APAM will fund dividends to its stockholders from its proportionate share of those distributions after provision for its taxes and other obligations. APAM declared and paid dividends of $3.83 and $0.86 per share of outstanding Class A common stock during the years ended December 31, 2014 and 2013, respectively. During the year ended December 31, 2014, APAM paid dividends of $3.81 per share of outstanding convertible preferred stock.
	APAM issued (cancelled) the following shares during the years ended December 31, 2014 and 2013:
		Total Stock		Class A Common Stock		Class B Common Stock		Class C Common Stock		Convertible Preferred Stock
	Balance at January 1, 2013	—		—		—		—		—
	Initial Public Offering	69,991,505		12,712,279		26,271,120		28,442,643		2,565,463
	2013 Follow-On Offering	—		5,520,000		—		(4,152,665	)	(1,367,335	)
	Restricted Share Award Grants	1,575,157		1,575,157		—		—		—
	Employee-Partner Terminations	(82,655	)	—		(999,231	)	916,576		—
	Balance at December 31, 2013	71,484,007		19,807,436		25,271,889		25,206,554		1,198,128
	2014 Follow-On Offering	—		9,284,337		(3,705,453	)	(4,835,767	)	(743,117	)
	H&F Conversion	—		1,836,898		—		(1,381,887	)	(455,011	)
	Holdings Common Unit Exchanges	—		1,865,924		(10,260	)	(1,855,664	)	—
	Restricted Share Award Grants	1,444,688		1,444,688		—		—		—
	Restricted Share Award Net Share Settlement	(5,880	)	(5,880	)	—		—		—
	Restricted Stock Unit Settlement (1)	4,728		4,728		—		—		—
	Employee-Partner Terminations	—		—		(93,143	)	93,143		—
	Balance at December 31, 2014	72,927,543		34,238,131		21,463,033		17,226,379		—
	(1) There were 20,612 and 16,670 restricted stock units outstanding at December 31, 2014 and 2013, respectively.
	Each Class A, Class B, Class D and Class E common unit of Holdings (together with the corresponding share of Class B or Class C common stock) is exchangeable for one share of Class A common stock. The preferred units of Holdings (together with the corresponding shares of Class C common stock) were also exchangeable for Class A common stock generally on a one-for-one basis. APAM’s convertible preferred stock was convertible into Class A common stock generally on a one-for-one basis.
	Upon termination of employment with Artisan, an employee-partner’s vested Class B common units are automatically exchanged for Class E common units; unvested Class B common units are forfeited. The employee-partner’s shares of Class B common stock are canceled and APAM issues the former employee-partner a number of shares of Class C common stock equal to the former employee-partner’s number of Class E common units. The former employee-partner’s Class E common units are exchangeable for Class A common stock subject to the same restrictions and limitations on exchange applicable to the other common units of Holdings.
	Artisan Partners Holdings - Partners’ Equity
	Prior to the IPO, Holdings was a private company. Holdings has several outstanding classes of partnership units held by investors.
	Holdings makes cash distributions to the holders of its partnership units under the terms of the partnership agreement. The distributions are recorded in the financial statements on the declaration date, or on the payment date in lieu of a declaration date.
	Holdings’ partnership distributions totaled $427.2 million, $332.0 million and $135.0 million for the years ended December 31, 2014, 2013 and 2012, respectively. The portion of these distributions made prior to the IPO to the holders of Class B common units (which were classified as liability awards prior to the IPO) are reflected as compensation and benefits expense within the Consolidated Statements of Operations, and totaled $65.7 million and $54.2 million for the years ended December 31, 2013 and 2012, respectively. The portion of these distributions made prior to the IPO to the other partners of Holdings and, after the IPO, to all partners are recorded as a reduction to consolidated stockholders’ equity, with the exception of the portion of distributions made to APAM, which is eliminated upon consolidation. Holdings distributions to APAM totaled $160.4 million and $41.5 million for the years ended December 31, 2014 and 2013.

Compensation_and_Benefits

Compensation and Benefits	12 Months Ended
	Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Compensation and benefits	Total compensation and benefits consists of the following:
		For the Year Ended December 31,
		2014		2013		2012
	Salaries, incentive compensation and benefits (1)	$	327,154	$	301,621	$	227,258
	Restricted share compensation expense	23,148		7,542		—
	Total salaries, incentive compensation and benefits	350,302		309,163		227,258
	Pre-offering related compensation - share-based awards	64,664		404,160		101,682
	Pre-offering related compensation - other	—		143,035		54,153
	Total compensation and benefits	$	414,966	$	856,358	$	383,093
	(1) Excluding restricted share compensation expense
	Incentive compensation
	Cash incentive compensation paid to members of Artisan’s portfolio management teams and members of its marketing and client service teams is based on formulas that are tied directly to revenues. These payments are made in the quarter following the quarter in which the incentive was earned with the exception of fourth quarter payments which are paid in the fourth quarter of the year. Cash incentive compensation paid to most other employees is discretionary and subjectively determined based on individual performance and Artisan’s overall results during the applicable year and has historically been paid in the fourth quarter of the year. The cash incentive compensation earned by certain named executive officers for the year ended December 31, 2014, was paid in 2015.
	Restricted shares
	Artisan has registered 14,000,000 shares of Class A common stock for issuance under the 2013 Omnibus Incentive Compensation Plan (the “Plan”). Pursuant to the Plan, APAM issued restricted shares of Class A common stock to employees during the years ended December 31, 2014 and 2013. The shares generally vest on a pro rata basis over 5 years. Certain shares will vest upon a combination of both (1) pro-rata annual time vesting and (2) qualifying retirement (as defined in the award agreements). Unvested shares are subject to forfeiture upon termination of employment. Grantees receiving the awards are entitled to dividends on unvested and vested shares. As of December 31, 2014, 10,979,885 shares of Class A common stock were reserved and available for issuance under the Plan.
	Compensation expense related to the restricted shares is recognized based on the estimated grant date fair value, for only those awards expected to vest, on a straight-line basis over the requisite service period of the award. The Company estimates the number of awards expected to vest based, in part, on historical forfeiture rates and also based on management’s expectations of employee turnover. Forfeitures are estimated at the time of grant and revised in subsequent periods, if necessary, based on actual forfeiture activity.
	The following table summarizes the restricted share activity for the years ended December 31, 2014 and 2013:
		Weighted-Average Grant Date Fair Value		Number of Awards
	Unvested at January 1, 2013	$	—	—
	Granted	$	52.36	1,575,157
	Forfeited	—		—
	Vested	—		—
	Unvested at January 1, 2014	$	52.36	1,575,157
	Granted	$	52.85	1,444,688
	Forfeited	—		—
	Vested	$	52.61	(319,211	)
	Unvested at December 31, 2014	$	52.59	2,700,634
	Compensation expense recognized related to the restricted shares was $23.1 million and $7.6 million for the years ended December 31, 2014 and 2013, respectively. The aggregate vesting date fair value of awards that vested during the year ended December 31, 2014 was approximately $16.4 million. The unrecognized compensation expense for the unvested restricted shares as of December 31, 2014 was $126.2 million with a weighted average recognition period of 4.2 years remaining.
	During the year ended December 31, 2014, the Company withheld a total of 5,880 restricted shares as a result of net share settlements to satisfy employee tax withholding obligations. The Company paid $0.3 million in employee tax withholding obligations related to employee share transactions. These net share settlements had the effect of shares repurchased and retired by the Company, as they reduced the number of shares outstanding.
	Pre-offering related compensation consists of the following:
		For the Year Ended December 31,
		2014		2013		2012
	Change in value of Class B liability awards	$	—	$	41,942	$	101,682
	Class B award modification expense	—		287,292		—
	Amortization expense on pre-offering Class B awards	64,664		74,926		—
	Pre-offering related compensation - share-based awards	64,664		404,160		101,682
	Pre-offering related cash incentive compensation	—		56,788		—
	Pre-offering related bonus make-whole compensation	—		20,520		—
	Distributions on Class B liability awards	—		65,727		54,153
	Pre-offering related compensation - other	—		143,035		54,153
	Total pre-offering related compensation	$	64,664	$	547,195	$	155,835
	Pre-offering related compensation - share-based awards
	Historical Class B share-based awards
	Holdings historically granted Class B share-based awards to certain employees. These awards vested over a period of five years. Prior to the IPO, all vested Class B awards were subject to mandatory redemption on termination of employment for any reason and were reflected as liabilities measured at fair value; unvested Class B awards were forfeited on termination of employment. The vested Class B liability awards of a terminated employee were historically redeemed in cash in annual installments, generally over the five years following termination of employment. The change in value of Class B liability awards and distributions to Class B limited partners were treated as compensation expense.
	Historical redemption of Class B awards
	Holdings historically redeemed the Class B awards of partners whose employment was terminated. The redemption value of the awards was determined in accordance with the terms of the grant agreement pursuant to which the award was granted. Prior to July 15, 2012, the redemption value of a Class B award was based on the partner’s equity balance which was determined for this purpose using a formula based on then-current EBITDA (excluding share-based compensation charges) multiplied by a stated multiple, adjusted to take into account working capital, debt and noncurrent liabilities associated with Class B partner redemptions. From July 15, 2012 through completion of the IPO-related reorganization, the redemption value of a Class B common unit held by a terminated employee-partner was based on the fair market value of the firm by reference to the value of asset management firms with publicly-traded equity securities. Artisan estimated the aggregate fair value of all outstanding Class B awards in connection with preparation of its financial statements by first determining the value of the business based on the probability weighted expected return method. This approach considered the value of the business, calculated using a discounted cash flow analysis and a market approach using earnings multiples of comparable entities, under various scenarios. Significant inputs included historical revenues and expenses, future revenue and expense projections, discount rates and market prices of comparable entities. The value of the business as determined was then adjusted to take into account working capital, debt and noncurrent liabilities associated with Class B partner redemptions and allocated to individual partnership interests based on their respective terms.
	Prior to the IPO Reorganization and IPO, the redemption value of Class B awards held by an employee-partner whose employment was terminated included a premium in the case of employment terminated by reason of death, disability or retirement. A qualifying retirement required the employee to have had 10 years or more of service as of the date of retirement and to have given Artisan written notice of the intention to retire at least three years prior to the date of retirement, subject to Artisan’s right, at its discretion, to accept a period of notice that was shorter, but not less than one year. Acceptance of an individual’s retirement notification obligated Holdings to pay the premium.
	However, in the event the employee was terminated for any reason during the additional period of employment, the retirement premium was no longer applicable. Artisan considered termination of employment by reason of death or disability to be not probable and therefore, unless Holdings had accepted a partner’s retirement notification, the premium was not included in calculating the redemption value of that partner’s individual Class B award. Unless a retirement notification had been accepted, the redemption value of Class B awards was calculated assuming a holder’s termination of employment was the result of resignation or involuntary termination by Artisan and had been recorded as Class B liability award on the Consolidated Statements of Financial Condition.
	As of December 31, 2012, Holdings had accepted three notices of retirement and the redemption value of the related Class B interests was increased to reflect the premium associated with the anticipated redemptions by reason of retirement. Since this premium would apply only upon retirement in accordance with the terms of the grant agreement and notice, the increase in redemption value was treated as a modification of a liability award as of the date Artisan accepted the notice of retirement in 2012 and effectively became obligated to pay the premium on redemption. The premium for those partners giving notice of retirement resulted in a $7.9 million cumulative increase in the award liability as of December 31, 2012. The Class B interests were carried at fair value, reflecting the retirement premium, from the date of Artisan’s acceptance of the retirement notification through the date of the individual’s retirement and the payment obligation was fixed.
	The Class B awards of partners whose services to Holdings terminated prior to the IPO will be redeemed for payments totaling $14.3 million and $23.0 million as of December 31, 2014 and 2013, respectively. Payments of $8.7 million and $8.8 million were made for the years ended December 31, 2014 and 2013, respectively. Additionally, the partner redemption liability was increased $2.5 million during 2013 for a partner whose employment terminated in the first quarter prior to the IPO.
	Modification of Class B share-based awards
	As a part of the IPO Reorganization, the Class B grant agreements were amended to eliminate the cash redemption feature. The amendment is considered a modification under ASC 718 and the Class B awards have been classified as equity awards since such modification. As a result of the modification, Artisan recognized a non-recurring expense of $287.3 million based on the elimination of the redemption feature associated with the Class B awards recorded as the difference between the fair value and carrying value of the liability associated with the vested Class B common units immediately prior to the IPO. For any unvested Class B awards, Artisan will recognize recurring non-cash compensation charges over the remaining vesting period.
	The following table summarizes the activity related to unvested Class B awards for the years ended December 31, 2014 and 2013:
		Weighted-Average Grant Date Fair Value		Number of Class B Awards
	Unvested Class B awards at March 12, 2013	$	30	9,911,720
	Granted	—		—
	Forfeited	30		(82,655	)
	Vested	30		(2,579,223	)
	Unvested Class B awards at January 1, 2014	$	30	7,249,842
	Granted	—		—
	Forfeited	—		—
	Vested	30		(3,204,826	)
	Unvested at December 31, 2014	$	30	4,045,016
	The unrecognized compensation expense for the unvested Class B awards as of December 31, 2014 was $87.0 million with a weighted average recognition period of 2.3 years remaining.
	Pre-offering related compensation - other
During the year ended December 31, 2013, Artisan also incurred pre-offering related compensation charges of $56.8 million to pay cash incentive compensation to certain portfolio managers and $20.5 million representing profits after the IPO otherwise allocable and distributable, in the aggregate, to Holdings’ pre-IPO non-employee partners that instead was allocated and distributed to certain employee-partners. For the period between January 1, 2013 and the IPO, profits distributions totaling $65.7 million were made to Class B partners.

Income_Taxes_and_Related_Payme

Income Taxes and Related Payments	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income taxes and related payments	APAM is subject to U.S. federal and state income taxation on APAM’s allocable portion of the income of Holdings. APAM’s effective income tax rate was lower than the U.S. Federal statutory rate of 35% primarily due to a rate benefit attributable to the fact that approximately 60% of Holdings’ earnings were not subject to corporate level taxes. This favorable impact is partially offset by the impact of certain permanent items, primarily attributable to certain compensation related expenses that are not deductible for tax purposes. Prior to the IPO Reorganization, none of Holdings’ earnings were subject to U.S. corporate-level taxes. The provision for income taxes in 2012 represents foreign income taxes of certain foreign corporate subsidiaries.
	The H&F Corp Merger described in Note 2, “Reorganization and IPO” resulted in an increase in amortizable basis which the Company expects will reduce future U.S. federal, state and local income taxes and require payments under the TRA between APAM and the shareholder of H&F Corp. The purchase by APAM of common and preferred units and the exchange of units subsequent to the IPO also resulted in an increase in amortizable basis which the Company expects will reduce future U.S. federal, state and local income taxes and require payments under the TRA between APAM and the limited partners of Holdings. The TRAs require APAM to pay to the relevant counterparty an amount equal to 85% of the cash tax savings (if any) resulting from the increased tax benefits from the transaction giving rise to the tax benefit. See Note 3, “Summary of Significant Accounting Policies” for further information.
	The 2014 Follow-On Offering, H&F Conversion and the Holdings Common Unit Exchanges resulted in an increase to deferred tax assets and amounts payable under tax receivable agreements of $386.7 million and $328.7 million, respectively, for the year ended December 31, 2014.
	Amounts payable under tax receivable agreements is an estimate which is impacted by factors, including but not limited to,
	expected tax rates, projected taxable income, and projected ownership levels. The payable increased by $4.2 million during the year ended December 31, 2014, due to changes in estimated future payments. The change in estimate is recorded in non-operating income in the Consolidated Statements of Operations. The change in estimate also resulted in a discrete tax item, which reduced the provision for income taxes by $4.1 million for the year ended December 31, 2014.
	During the year ended December 31, 2014, payments of $4.6 million were made under the TRAs.
	Components of the provision for income taxes consist of the following:
		For the Year Ended December 31,
		2014				2013		2012
	Current:
	Federal	$	27,094			$	13,816	$	—
	State and local	3,982				2,719		—
	Foreign	184				471		1,047
	Total	31,260				17,006		1,047
	Deferred:
	Federal	21,402				9,089		—
	State and local	(3,833		)		295		—
	Total	17,569				9,384		—
	Income tax expense	$	48,829			$	26,390	$	1,047
	The provision for income taxes from operations differs from the amount of income tax computed by applying the applicable U.S. statutory federal income tax rate to income before provision for income taxes as follows:
		For the Period from January 1, 2014 through December 31, 2014			For the Period from March 12, 2013 through December 31, 2013
	U.S. Federal Statutory Rate	35	%		35	%
	Non-deductible share-based compensation	3.1			2.6
	Rate benefit from the flow through entity	(20.8	)		(27.4	)
	Other	(0.3	)		1.4
	Effective Tax Rate	17	%		11.6	%
	The effective tax rate includes a rate benefit attributable to the fact that, approximately 60% and 78% of Artisan Partners Holdings’ taxable earnings were attributable to other partners and not taxable to Artisan for the years ended December 31, 2014 and 2013, respectively. This favorable impact is partially offset by the impact of certain permanent items, primarily attributable to certain compensation-related expenses that are not deductible for tax purposes.
	Net deferred tax assets comprise the following:
		As of December 31, 2014				As of December 31, 2013
	Deferred tax assets:
	Amortizable basis (1)	$	551,952			$	183,858
	Other (2)	10,444				4,049
	Total deferred tax assets	562,396				187,907
	Less: valuation allowance (3)	—				—
	Net deferred tax assets	$	562,396			$	187,907
	(1) Represents the unamortized step-up of tax basis from the merger described above, the purchase of common and preferred units by APAM, and the exchange of common and preferred units for Class A common shares of APAM.
	(2) Represents the net deferred tax assets associated with the merger described above and other miscellaneous deferred tax assets.
	(3) Artisan assessed whether the deferred tax assets would be realizable and determined based on its history of taxable income that the benefits would more likely than not be realized. Accordingly, no valuation allowance is required.
	Accounting standards establish a minimum threshold for recognizing, and a system for measuring, the benefits of income tax return positions in financial statements. There were no uncertain tax positions recorded as of December 31, 2014 and December 31, 2013.
	In the normal course of business, Artisan is subject to examination by federal and certain state, local and foreign tax regulators. As of December 31, 2014, U.S. federal income tax returns for the years 2011 through 2013 are open and therefore subject to examination. State and local tax returns are generally subject to audit from 2009 to 2013. Foreign tax returns are generally subject to audit from 2010 to 2013.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss) (Notes)	12 Months Ended
	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Accumulated Other Comprehensive Income (Loss), net of tax, in the accompanying Consolidated Statements of Financial Condition represents the portion of accumulated other comprehensive income attributable to APAM, and consists of the following:
		As of December 31, 2014			As of December 31, 2013
	Unrealized gain on investments	$	326		$	303
	Foreign currency translation	(120		)	75
	Accumulated Other Comprehensive Income (Loss)	$	206		$	378
	Comprehensive income (loss) attributable to noncontrolling interests - Artisan Partners Holdings in the Consolidated Statements of Comprehensive Income (Loss) represents the portion of comprehensive income (loss) attributable to the economic interests in Holdings held by the limited partners of Holdings. For periods prior to the IPO, all comprehensive income (loss) is entirely attributable to noncontrolling interests.

Earnings_loss_Per_Share_Notes

Earnings (loss) Per Share (Notes)	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Earnings (Loss) Per Share	The computation of basic and diluted earnings per share under the two-class method for the periods ended December 31, 2014 and 2013 were as follows:
	Basic and Diluted Earnings Per Share	For the period from January 1, 2014 through December 31, 2014				For the period from March 12, 2013 through December 31, 2013
	Numerator:
	Net income (loss) attributable to APAM	$	69,629			$	24,807
	Less: Convertible preferred stock deemed dividends	22,694				32,215
	Less: Subsidiary preferred equity deemed dividends	27,619				19,457
	Less: Allocation to participating securities	29,616				1,300
	Net income (loss) available to common stockholders	$	(10,300	)		$	(28,165	)
	Denominator:
	Weighted average shares outstanding	27,514,394				13,780,378
	Earnings (loss) per share	$	(0.37	)		$	(2.04	)
	As described in Note 2. Reorganization and IPO, the consideration Artisan paid to purchase shares of its convertible preferred stock in connection with the 2014 Follow-On Offering and 2013 Follow-On Offering exceeded the carrying amount of the shares of convertible preferred stock on Artisan’s consolidated balance sheet by $22.7 million and $32.2 million, respectively, which is subtracted from net income as a deemed dividend to arrive at income available to common stockholders in the earnings per share calculation. The purchase of subsidiary preferred equity in connection with the 2014 Follow-On Offering and 2013 Follow-On Offering resulted in a similar deemed dividend, which also reduced net income available to common stockholders.
	For periods with a net loss available to common stockholders, all potential common shares are considered anti-dilutive.
	The following table summarizes the weighted-average shares outstanding that are excluded from the calculation of diluted earnings per share because their effect would have been anti-dilutive:
	Anti-Dilutive Weighted Average Shares Outstanding	For the period from January 1, 2014 through December 31, 2014			For the period from March 12, 2013 through December 31, 2013
	Holdings limited partnership units	42,194,109			53,867,514
	Convertible preferred stock	355,228			2,305,018
	Unvested restricted shares	2,131,068			894,732
	Total	44,680,405			57,067,264

Benefit_Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Benefit plans	Artisan has a 401(k) plan and similar foreign arrangements for its employees, under which it provides a matching contribution on employees’ pre-tax contributions. Expenses related to Artisan’s benefits plans for the years ended December 31, 2014, 2013, and 2012 were $4.9 million, $4.4 million and $3.8 million, respectively, and are included in Compensation and benefits in the Consolidated Statements of Operations.
	Artisan has an Equity Incentive Plan, which enables eligible employees to participate in Artisan’s financial growth and success. Designated employees receive an annual award of units that vest on the third anniversary of the award date. The appreciation of the units, if any, is based upon a stated formula and paid to vested participants after vesting. Expenses related to this plan for the years ended December 31, 2014, 2013, and 2012 were $1.2 million, $1.5 million and $0.6 million, respectively, and are included in Compensation and benefits in the Consolidated Statements of Operations. The liability at December 31, 2014 and 2013 for this plan was $2.0 million and $1.8 million, respectively.

Indemnifications

Indemnifications	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Indemnifications	In the normal course of business, APAM enters into agreements that include indemnities in favor of third parties. Holdings has also agreed to indemnify APAM as its general partner, Artisan Investment Corporation (“AIC”) as its former general partner, the directors and officers of APAM, the directors and officers of AIC as its former general partner, the members of its former Advisory Committee, and its partners, directors, officers, employees and agents. Holdings’ subsidiaries may also have similar agreements to indemnify their respective general partner(s), directors, officers, directors and officers of their general partner(s), partners, members, employees, and agents. The Company’s maximum exposure under these arrangements is unknown, as this would involve future claims that may be made against us that have not yet occurred. APAM maintains insurance policies that may provide coverage against certain claims under these indemnities.

Property_and_Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property and equipment	The composition of property and equipment at December 31, 2014 and 2013 are as follows:
		As of December 31,
		2014			2013
	Computers and equipment	$	5,910		$	6,259
	Computer software	4,021			5,356
	Furniture and fixtures	6,654			4,166
	Leasehold improvements	17,049			11,416
	Total Cost	33,634			27,197
	Less: Accumulated depreciation	(17,040		)	(18,437		)
	Property and equipment, net of accumulated depreciation	$	16,594		$	8,760
	Depreciation expense for the years ended December 31, 2014, 2013 and 2012 totaled $3.2 million, $3.2 million and $2.4 million, respectively.

Lease_Commitments

Lease Commitments	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Lease commitments	Artisan has lease commitments for office space, furniture, and equipment, which are accounted for as operating leases. Certain lease agreements provide for scheduled rent increases over the lease term. Artisan records rent expense for operating leases with scheduled rent increases on a straight-line basis over the term of the respective agreement. In addition, Artisan has received certain lease incentives, which are amortized on a straight-line basis over the term of the lease agreement. Rental expense for the years ended December 31, 2014, 2013 and 2012 was $9.4 million, $8.4 million and $7.8 million, respectively.
	At December 31, 2014, the aggregate future minimum payments for leases for each of the following five years and thereafter are as follows:
	2015	9,642
	2016	9,432
	2017	8,650
	2018	8,722
	2019	7,180
	Thereafter	33,633
	Total	$	77,259

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2014
Related Party Transactions [Abstract]
Related party transactions	Artisan engages in transactions with its affiliates in the ordinary course of business.
	Affiliate transactions—Artisan Funds
	Artisan has agreements to serve as the investment manager of Artisan Funds, with which certain of Artisan employees are affiliated. Under the terms of these agreements, which are generally reviewed and continued by the board of directors of Artisan Funds annually, a fee is paid to Artisan based on an annual percentage of the average daily net assets of each Artisan Fund ranging from 0.63% to 1.25%.
	Artisan generally collects revenues related to these services on the last business day of each month and records them in Management fees in the Consolidated Statement of Operations. Artisan has contractually agreed to waive its management fees or reimburse for expenses incurred to the extent necessary to limit annualized ordinary operating expenses incurred by certain of the Artisan Funds to not more than 1.50% of average daily net assets, and 1.25% of the fund’s average daily net assets for Artisan High Income Fund. In addition, Artisan may voluntarily waive fees or reimburse any of the Artisan Funds for other expenses. The officers and a director of Artisan Funds who are affiliated with Artisan receive no compensation from the funds.
	Fees for managing the Funds and amounts waived or reimbursed by Artisan for fees and expenses (including management fees) are as follows:
		For the Year Ended December 31,
		2014		2013		2012
	Investment management fees:
	Artisan Funds	$	561,202	$	455,047	$	333,218
	Fee waiver / expense reimbursement:
	Artisan Funds	$	63	$	291	$	171
	Affiliate transactions—Artisan Global Funds
	Artisan has agreements to serve as the investment manager and promoter of Artisan Global Funds, with which certain of Artisan employees are affiliated. Under the terms of these agreements, a fee is paid based on an annual percentage of the average daily net assets of each fund ranging from 0.75% to 1.80%. Artisan reimburses each sub-fund of Artisan Global Funds to the extent that sub-fund’s expenses, not including Artisan’s fee, exceed certain levels, which range from 0.10% to 0.20%. In addition, Artisan may voluntarily waive fees or reimburse any of the Artisan Global Funds for other expenses. The directors of Artisan Global Funds who are affiliated with Artisan receive no compensation from the funds. At December 31, 2014 and December 31, 2013, respectively, accounts receivable included $1.3 million and $2.2 million due from Artisan Global Funds.
	Fees for managing Artisan Global Funds and amounts reimbursed to Artisan Global Funds by Artisan are as follows:
		For the Year Ended December 31,
		2014		2013		2012
	Investment management fees:
	Artisan Global Funds	$	14,172	$	9,291	$	3,020
	Fee waiver / expense reimbursement:
	Artisan Global Funds	$	493	$	752	$	653
	Affiliate transactions—Launch Equity
	Prior to the dissolution described in Note 9, Artisan had an agreement to serve as the investment manager of Launch Equity. Under the terms of Artisan’s agreement with Launch Equity, Artisan earned a quarterly fee based on the value of the closing capital account of each limited partner for the quarter, at the rate of 1.00% (annualized). At Artisan’s discretion, the fee was waived and certain expenses reimbursed to the extent they exceeded a certain level. Artisan waived 100% of the quarterly fee and reimbursed Launch Equity for all operating expenses, and Artisan also waived other expenses as well. Artisan was also entitled to receive an allocation of profits equal to 20% of Launch Equity’s net capital appreciation as determined at the conclusion of its fiscal year. That amount, which Artisan also waived, was calculated at the end of the Launch Equity’s fiscal year. Artisan waived its incentive allocation for the years ended December 31, 2013 and 2012. No incentive fees were paid in 2014. Expense reimbursements totaled $163 thousand, $172 thousand and $141 thousand for the years ended December 31, 2014, 2013 and 2012, respectively.
	Affiliate transactions—AIC
	Artisan had cost sharing arrangements with entities controlled by Andrew A. Ziegler (APAM’s Chairman of the Board and former Artisan employee) and Carlene M. Ziegler (also a former Artisan employee), pursuant to which the Ziegler entities reimbursed Artisan for the costs associated with three employees using Artisan’s office space while they transitioned to new facilities.
	This transition was completed during June 2014. In addition, Artisan has obtained and paid for insurance policies covering potential liability AIC may incur as the prior general partner of Holdings. At December 31, 2014, no amounts were due from the Ziegler entities related to these transactions.

Concentration_of_Credit_Risk_a

Concentration of Credit Risk and Significant Relationships	12 Months Ended
	Dec. 31, 2014
Risks and Uncertainties [Abstract]
Concentration of credit risk and significant relationships	Services provided to the following Artisan Funds generated over ten percent of total revenues for the periods presented. Fees for managing the Funds and the percentage of total revenues are as follows:
		For the Year Ended December 31,
	Artisan Fund	2014			2013			2012
	U.S. Mid-Cap Growth	$	90,683		$	76,327		$	59,841
	Percent of total revenues	10.9		%	11.1		%	11.8		%
	U.S. Mid-Cap Value	$	106,463		$	93,774		$	73,720
	Percent of total revenues	12.9		%	13.7		%	14.6		%
	Non-U.S. Growth	$	156,537		$	116,173		$	86,367
	Percent of total revenues	18.9		%	16.9		%	17.1		%
	Non-U.S. Value	$	108,837		$	88,342		$	54,851
	Percent of total revenues	13.1		%	12.9		%	10.9		%
	Artisan generates a portion of its revenues from clients domiciled in various countries outside the United States. For the years ended December 31, 2014, 2013 and 2012, approximately 9%, 9% and 7% of Artisan’s investment management fees,
	respectively, were earned from clients located outside of the United States.

Litigation_Matters

Litigation Matters	12 Months Ended
	Dec. 31, 2014
Litigation Matters [Abstract]
Litigation Matters	In the normal course of business, Artisan may be subject to various legal and administrative proceedings. Currently, there are no legal or administrative proceedings that management believes may have a material effect on Artisan’s consolidated financial position, cash flows or results of operations.

Selected_Quarterly_Financial_D

Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Information (Unaudited)	The following table presents unaudited quarterly results of operations for 2014 and 2013. These quarterly results reflect all normal recurring adjustments that are, in the opinion of management, necessary for a fair statement of the results. Revenues and net income can vary significantly from quarter to quarter due to the nature of Artisan’s business activities.
		For the Quarter Ended
		March 31, 2014			June 30, 2014		Sept. 30, 2014		Dec. 31, 2014
	Total revenues	$	201,792		$	208,487	$	212,406	$	206,016
	Operating income (loss)	$	67,152		$	80,825	$	81,016	$	77,910
	Net income (loss) attributable to noncontrolling interests-Artisan Partners Holdings	$	44,149		$	45,547	$	43,243	$	40,146
	Net income attributable to Artisan Partners Asset Management Inc.	$	8,636		$	19,260	$	20,439	$	21,294
	Earnings per Share:
	Basic and diluted	$	(2.29	)	$	0.42	$	0.57	$	0.58
		For the Quarter Ended
		March 31, 2013			June 30, 2013		Sept. 30, 2013		Dec. 31, 2013
	Total revenues	$	148,223		$	161,933	$	178,092	$	197,593
	Operating income (loss)	$	(421,314	)	$	48,384	$	53,360	$	58,366
	Net income (loss) attributable to noncontrolling interests-Artisan Partners Holdings	$	(407,123	)	$	42,442	$	44,614	$	50,505
	Net income attributable to Artisan Partners Asset Management Inc.	$	2,950		$	5,798	$	5,977	$	10,082
	Earnings per Share:
	Basic	$	0.19		$	0.38	$	0.42	$	(3.04	)
	Diluted	$	0.19		$	0.38	$	0.35	$	(3.04	)
	The summation of quarterly earnings per share does not equal annual earnings per share because the calculations are performed independently.

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent events	Note 23. Subsequent Events
	Restricted Share Awards
	On January 30, 2015, the board of directors of APAM approved the grant of 621,000 restricted shares of Class A common stock to employees pursuant to the Company’s 2013 Omnibus Incentive Compensation Plan. A portion of these shares will vest pro rata in the first fiscal quarter of each of the next 5 years. The remaining shares will generally vest upon a combination of both (1) pro-rata annual time vesting and (2) qualifying retirement (as defined in the award agreements). Compensation expense associated with these awards is expected to be approximately $29.5 million, which will be recognized on a straight-line basis over the requisite service period.
	Distributions and dividends
	On February 2, 2015, the board of directors of APAM declared a distribution by Artisan Partners Holdings of $79.4 million to holders of Artisan Partners Holdings partnership units, including APAM. On the same date, the board declared a quarterly dividend of $0.60 per share of Class A common stock and a special annual dividend of $0.95 per share of Class A common stock. Both common stock dividends, a total of $1.55 per share, are payable on February 27, 2015 to shareholders of record as of February 13, 2015.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Basis of presentation	The accompanying consolidated financial statements were prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and related rules and regulations of the SEC. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates or assumptions that affect the reported amounts and disclosures in the financial statements. Actual results could differ from these estimates or assumptions.
Principles of consolidation	Artisan’s policy is to consolidate all subsidiaries or other entities in which it has a controlling financial interest and variable interest entities (“VIEs”) of which Artisan is deemed to be the primary beneficiary. The primary beneficiary is deemed to be the entity that has the power to govern the financial and operating policies of the subsidiary so as to obtain benefits from its activities. The consolidated financial statements include the accounts of APAM, all subsidiaries or other entities in which APAM has a direct or indirect controlling financial interest and VIEs of which Artisan is deemed to be the primary beneficiary. All material intercompany balances have been eliminated in consolidation.
	Artisan’s wholly-owned subsidiary, Artisan Partners Alternative Investments GP LLC, was the general partner of Artisan Partners Launch Equity LP (“Launch Equity”), a private investment partnership that was considered a VIE. Launch Equity was considered an investment company and therefore accounted for under Accounting Standard Codification Topic (“ASC”) 946, “Financial Services – Investment Companies”. Artisan had retained the specialized industry accounting principles of this investment company in its consolidated financial statements. Launch Equity was liquidated and dissolved in December 2014. See Note 9, “Variable and Voting Interest Entities” for additional details.
	The Company makes initial seed investments in sponsored investment portfolios at the portfolio’s formation. If the seed investment results in a controlling financial interest, APAM consolidates the investment, and the underlying individual securities are accounted for as trading securities.
	Seed investments in which the Company does not have a controlling financial interest are classified as available-for-sale investments, as described below under “-Investment Securities”. APAM does not have a controlling financial interest in any of the funds in which it has made a seed investment.
Tax receivable agreements (TRAs)	In connection with the IPO, APAM entered into two tax receivable agreements. Under the first TRA, APAM generally is required to pay to a private equity fund controlled by Hellman & Friedman LLC 85% of the applicable cash savings, if any, in U.S. federal, state and local income tax that APAM actually realizes (or is deemed to realize in certain circumstances) as a result of (i) the tax attributes of the preferred units APAM acquired in the merger of a wholly-owned subsidiary of the private equity fund into APAM in March 2013, (ii) net operating losses available as a result of the merger and (iii) tax benefits related to imputed interest.
	Under the second TRA, APAM generally is required to pay to current or former limited partners of Holdings 85% of the applicable cash savings, if any, in U.S. federal, state and local income tax that APAM actually realizes (or is deemed to realize in certain circumstances) as a result of (i) certain tax attributes of their units sold to APAM or exchanged (for shares of Class A common stock or convertible preferred stock) and that are created as a result of the sales or exchanges and payments under the TRAs and (ii) tax benefits related to imputed interest. Under both agreements, APAM generally will retain the benefit of the remaining 15% of the applicable tax savings.
	For purposes of the TRAs, cash savings in tax are calculated by comparing APAM’s actual income tax liability to the amount it would have been required to pay had it not been able to utilize any of the tax benefits subject to the TRAs, unless certain assumptions apply. The TRAs will continue in effect until all such tax benefits have been utilized or expired, unless APAM exercises its right to terminate the agreements or payments under the agreements are accelerated in the event that APAM materially breaches any of its material obligations under the agreements. The actual increase in tax basis, as well as the amount and timing of any payments under these agreements, will vary depending upon a number of factors, including the timing of exchanges by the holders of limited partnership units, the price of the Class A common stock or the value of the convertible preferred stock, as the case may be, at the time of the exchange, whether such exchanges are taxable, the amount and timing of the taxable income APAM generates in the future and the tax rate then applicable and the portion of APAM’s payments under the TRAs constituting imputed interest.
	Payments under the TRAs, if any, will be made pro rata among all TRA counterparties entitled to payments on an annual basis to the extent APAM has sufficient taxable income to utilize the increased depreciation and amortization charges. Artisan expects to make payments under the TRAs, to the extent they are required, within 125 days after APAM’s federal income tax return is filed for each fiscal year. Interest on such payments will begin to accrue at a rate equal to one-year LIBOR plus 100 basis points from the due date (without extension) of such tax return.
Operating segments	Artisan operates in one segment, the investment management industry. Artisan provides investment management services to separate accounts and mutual funds and other pooled investment vehicles. Management assesses the financial performance of these vehicles on a combined basis.
Cash and cash equivalents	Cash and cash equivalents
	Artisan defines cash and cash equivalents as money market funds and other highly liquid investments with original maturities of 90 days or less. Cash and cash equivalents are stated at cost, which approximates fair value due to the short-term nature and liquidity of these financial instruments. For disclosure purposes, cash and cash equivalents are categorized as Level 1 in the fair value hierarchy. Cash and cash equivalents are subject to credit risk and were primarily maintained in demand deposit accounts with financial institutions or treasury money market funds.
	Cash and cash equivalents of Launch Equity
	Cash and cash equivalents of Launch Equity represent cash and equivalents of Launch Equity, a private investment partnership that was considered a VIE. Launch Equity defined cash and cash equivalents as highly liquid investments which had original maturities of 60 days or less. Cash and cash equivalents of Launch Equity are stated at cost, which approximates fair value.
Foreign currency translation	Assets and liabilities of foreign operations whose functional currency is not the U.S. dollar are translated at prevailing year-end exchange rates. Revenue and expenses of such foreign operations are translated at average exchange rates during the year. The net effect of the translation adjustment for foreign operations is included in other comprehensive income (loss) in the Consolidated Statements of Comprehensive Income (Loss). The cumulative effect of translation adjustments is included in Accumulated other comprehensive income (loss) and Noncontrolling interest - Artisan Partners Holdings in the Consolidated Statements of Financial Condition, based on current ownership levels.
Accounts receivable	Accounts receivable
	Accounts receivable are carried at invoiced amounts and consist primarily of investment management fees that have been earned, but not yet received from clients. Due to the short-term nature and liquidity of the receivables, the carrying values of these assets approximate fair value. The accounts receivable balance does not include any allowance for doubtful accounts as Artisan believes all accounts receivable balances are fully collectible. There has not been any bad debt expense recorded for the years ended December 31, 2014, 2013 and 2012.
	Accounts receivable of Launch Equity
	Accounts receivable of Launch Equity represented the value of securities sold by Launch Equity but not yet settled. See Note 9, “Variable and Voting Interest Entities”, for additional details.
Investment securities	Investment securities
	Investment securities consist of investments in mutual funds for which Artisan is the investment adviser and are classified as available-for-sale. These securities include securities held in connection with an incentive compensation plan established during 2011. This incentive compensation plan provided certain portfolio managers with additional cash compensation over a three-year period based on the then-current value of the investment securities, which were shares of mutual funds managed by such portfolio managers. As of December 31, 2013, the plan ended and all related investment securities were sold. Investments provide exposure to various risks, including price risk (the risk of a potential future decline in value of the investment) and foreign currency risk. Investments in registered mutual funds are carried at fair value at their respective net asset values as of the valuation date.
	Unrealized gains (losses) on available-for-sale securities are recorded as a component of Other comprehensive income (loss). Dividend income from these investments is recognized when earned and is included in Net investment income in the Consolidated Statements of Operations. Realized gains (losses) are computed on a specific identification basis and are recorded in Net investment income in the Consolidated Statements of Operations.
	Investment securities of Launch Equity
	Investment securities of Launch Equity represented investments held by Launch Equity. The carrying value of Launch Equity’s investments was also their fair value. Long and short positions in equity securities were valued based upon closing market prices of the security on the principal exchange on which the security is traded. See Note 9, “Variable and Voting Interest Entities”, for additional details.
Property and equipment	Property and equipment are carried at cost, less accumulated depreciation. Depreciation is generally recognized on a straight-line basis over the estimated useful lives of the respective assets, which range from three to seven years. Depreciation for leasehold improvements is recognized over the applicable life of the asset class, typically the lesser of the economic useful life of the improvement or the remaining term of the lease. Property and equipment is tested for impairment when there is an indication that the carrying amount of an asset may not be recoverable. When an asset is determined to not be recoverable, the impairment loss is measured based on the excess, if any, of the carrying value of the asset over its fair value.
Restricted cash	Restricted cash represents cash that is restricted as collateral on a standby letter of credit related to a lease obligation.
Derivative instruments	Artisan used derivative instruments (interest rate swaps) to manage the interest rate exposure related to its $400 million variable rate term loan, which was re-financed in 2012. Artisan originally designated its interest rate swaps as a hedge of the benchmark interest rate on future interest payments to remove the exposure to variations in cash flows related to interest expense. Artisan monitored its position and the credit rating of the counterparties and did not anticipate non-performance by any party to the interest rate swaps.
	The interest rate swaps were carried at fair value. During the year ended December 31, 2011, Artisan discontinued the hedge accounting relationship related to the cash flow hedge. As such, cumulative amounts recorded in Total comprehensive income (loss) were reclassified to current earnings as Other non-operating income (loss). Changes in fair value occurring after the date of discontinuance were recorded as Other non-operating income (loss).
	During the year ended December 31, 2012, Artisan terminated the interest rate swap contract in connection with the repayment of all of the then-outstanding principal amount of the $400 million term loan. Final settlement of the swap contract was $1.1 million. See Note 7, “Derivative Instruments”, for additional details.
Payables of Launch Equity	Payables of Launch Equity represented payables for securities purchased by Launch Equity but not yet settled.
Securities sold, not yet purchased of Launch Equity	Securities sold, not yet purchased of Launch Equity represented securities, at fair value, sold short by Launch Equity.
Revenue recognition	Investment management fees are generally computed as a percentage of average daily assets under management and recognized as earned. Fees for providing investment advisory services are computed and billed in accordance with the provisions of the applicable investment management agreements, generally on a monthly or quarterly basis. The investment management agreements for a small number of accounts provide for performance-based fees. Performance-based fees, if earned, are recognized on the contractually determined measurement date. Performance-based fees generally are not subject to claw back as a result of performance declines subsequent to the most recent measurement date.
Unit and share-based compensation	Unit-based compensation
	In accordance with the provisions of Artisan Partners Holdings’ partnership agreement and the terms of the corresponding grant agreements, Class B interests reclassified as Class B common units granted to the Class B limited partners of Holdings are generally entitled to pro rata allocations of profits and losses and other items and distributions of cash and other property. Class B common units vest ratably over a five-year vesting period, beginning on the date of grant. Vesting is accelerated upon the occurrence of certain events, including a change in control as defined in the grant agreements.
	Prior to the IPO Reorganization, vested Class B common units were classified as share-based liability awards. Vested Class B common units of a terminated partner were redeemed in cash, generally in annual installments over the five years following termination of employment. The Partnership redeemed the vested Class B common units at a value determined in accordance with the terms of the grant agreement pursuant to which the common units were granted, which included a premium in the case of employment terminated by reason of death, disability or retirement. The redemption value of Class B common units had been calculated assuming a holder’s termination of employment was the result of resignation or involuntary termination by Artisan and had been recorded as Class B liability award in the Consolidated Statements of Financial Condition. For individuals who had given notice of retirement in accordance with their grant agreements and such notice has been accepted by Artisan, the redemption value of the Class B common units had been calculated using the retirement valuation as of the notice date.
	On and after April 6, 2011, compensation cost was measured at the grant date based on the fair value of the common units granted. Compensation cost was recognized as expense over the requisite service period for vesting, typically five years. Compensation cost was re-measured each period with any incremental changes in value subsequent to the grant date expensed over the remaining vesting period. Changes in value that occurred after the end of the vesting period were recorded as compensation cost in the period in which the changes occur through settlement of the common units. Distributions of the Partnership’s net income associated with Class B common units were recorded to Compensation and benefits expense. During 2013, the Class B common units were modified, which eliminated the cash redemption feature and liability classification. See Note 11, “Compensation and Benefits” for details on the modification of these awards.
	Share-based compensation
	Share-based compensation expense is recognized based on grant-date fair value on a straight-line basis over the requisite service period of the awards, adjusted for estimated forfeitures. Forfeiture assumptions are evaluated on a quarterly basis and updated as necessary. The awards generally vest ratably over a five-year vesting period, beginning on the date of grant. Certain awards vest upon a combination of both (1) pro-rata annual time vesting and (2) qualifying retirement (as defined in the award agreements).
Distribution fees	Artisan Funds has authorized certain financial services companies, broker-dealers, banks or other intermediaries, and in some cases, other organizations designated by an authorized intermediary to accept purchase, exchange, and redemption orders for shares of Artisan Funds on the funds’ behalf. Many intermediaries charge a fee for accounting and shareholder services provided to fund shareholders on the fund’s behalf. Those services typically include recordkeeping, transaction processing for shareholders’ accounts, and other services. The fee is either based on the number of accounts to which the intermediary provides such services or a percentage of the average daily value of fund shares held in such accounts. The funds pay a portion of such fees directly to the intermediaries, which are intended to compensate the intermediary for its provision of services of the type that would be provided by the fund’s transfer agent or other service providers if the shares were registered directly on the books of the fund’s transfer agent. Artisan pays the balance of those fees which includes compensation to the intermediary for its distribution and marketing of Artisan Funds shares.
	Artisan Global Funds have distribution arrangements pursuant to which Artisan is required to pay a portion of its investment management fee for distribution and marketing of Artisan Global Funds shares. Distribution fees paid by Artisan are presented as an operating expense as Artisan is the principal in its role as the primary obligor related to distribution and marketing services.
	Distribution fees paid to intermediaries were as follows:
		For the Year Ended December 31,
		2014		2013		2012
	Total intermediary fees incurred	$	133,745	$	112,360	$	88,818
	Less: fees incurred by Artisan Funds	89,372		78,036		62,736
	Fees incurred by Artisan	44,373		34,324		26,082
	Other marketing expenses	4,759		4,074		2,908
	Total distribution and marketing	$	49,132	$	38,398	$	28,990
	Accrued fees to intermediaries were $6.6 million and $5.4 million as of December 31, 2014 and 2013, respectively, and are included in Accounts payable, accrued expenses and other liabilities in the Consolidated Statements of Financial Condition.
Leases	Rent under non-cancelable operating leases with scheduled rent increases and decreases is accounted for on a straight-line basis over the lease term, beginning on the date of initial possession or the effective date of the lease agreement. Allowances and other lease incentives provided by Artisan’s landlords are amortized on a straight-line basis as a reduction of rent expense. The difference between straight-line rent expense and rent paid and the unamortized deferred lease costs and build-out allowances are recorded as Deferred lease obligations in the Consolidated Statements of Financial Condition.
Loss contingencies	Artisan considers the assessment of loss contingencies as a significant accounting policy because of the significant uncertainty relating to the outcome of any potential legal actions and other claims and the difficulty of predicting the likelihood and range of the potential liability involved, coupled with the material impact on Artisan’s results of operations that could result from legal actions or other claims and assessments.
	Artisan recognizes estimated costs to defend as incurred. Potential loss contingencies are reviewed at least quarterly and are adjusted to reflect the impact and status of settlements, rulings, advice of counsel and other information pertinent to a particular matter. Significant differences could exist between the actual cost required to investigate, litigate and/or settle a claim or the ultimate outcome of a suit and management’s estimate. These differences could have a material impact on Artisan’s results of operations, financial position, or cash flows. Recoveries of losses are recognized in the Consolidated Statements of Operations when receipt is deemed probable. No loss contingencies were recorded at December 31, 2014, 2013, and 2012. There is currently no litigation in process or outstanding.
Income taxes	As a limited partnership, Artisan Partners Holdings has not made a provision for income taxes because it is not subject to Federal income tax and certain state income taxes. It is the responsibility of Artisan Partners Holdings’ partners to separately report their proportionate share of Artisan Partners Holdings’ taxable income or loss.
	As a result of the IPO, APAM became subject to U.S. C-corporation federal and state income taxes on its allocable portion of the income of Artisan Partners Holdings. During the year ended December 31, 2012, APAM was not allocated any of Holdings’ income and therefore did not incur any U.S. income tax.
	Artisan accounts for income taxes under the liability method, which requires the recognition of deferred tax assets and liabilities for the future tax consequences attributable to temporary differences between the financial statement carrying amounts and tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be realized or settled. Artisan recognizes a valuation allowance if it is more likely than not that some portion or all of the deferred tax assets will not be realized.
	Artisan accounts for uncertain income tax positions by recognizing the impact of a tax position in its consolidated financial statements when Artisan believes it is more likely than not that the tax position would not be sustained upon examination by the appropriate tax authorities based on the technical merits of the position.
Comprehensive income (loss)	Total comprehensive income (loss) includes net income and other comprehensive income. Other comprehensive income (loss) consists of the change in unrealized gains (losses) on available-for-sale investments and foreign currency translation, net of related tax effects. The tax effects of components of other comprehensive income (loss) is calculated on the portion of comprehensive income (loss) attributable to APAM.
Partnership distributions	Artisan makes distributions to its partners (or former partners) for purposes of paying income taxes as required under the terms of Artisan Partners Holdings’ partnership agreement. Tax distributions are calculated utilizing the highest combined individual federal, state and local income tax rate among the various locations in which the partners (or former partners), as a result of owning their interests in the partnership, are subject to tax, assuming maximum applicability of the phase-out of itemized deductions contained in the Internal Revenue Code. Artisan also makes additional distributions under the terms of the partnership agreement. Distributions are recorded in the financial statements on the declaration date. Partnership distributions, excluding distributions to APAM, totaled $266.8 million, $290.5 million and $135.0 million for the years ended December 31, 2014, 2013, and 2012, respectively, and are reported either as Pre-offering related compensation-other within the Consolidated Statements of Operations or Partnership distributions within the Consolidated Statements of Changes in Stockholders’ Equity, depending on the timing of distributions.
Earnings per share	Basic and diluted earnings per share is computed under the two-class method by dividing income available to Class A common stockholders by the weighted average number of Class A common shares outstanding during the period. Unvested restricted shares are excluded from the number of Class A common shares outstanding for the basic earnings per share calculation because the shares have not yet been earned by employees. Income available to Class A common stockholders is computed by reducing net income attributable to APAM by dividends declared or paid to convertible preferred stockholders during the period and earnings (distributed and undistributed) allocated to participating securities, according to their respective rights to participate in those earnings. All income for the periods prior to the IPO was entirely allocable to noncontrolling interests. As a result, only net income attributable to APAM from the period subsequent to the IPO is included in net income (loss) available to Class A common stockholders. Class B and Class C common shares do not share in profits of APAM and therefore are not reflected in the calculations.
	Diluted earnings per share is computed by increasing the denominator by the amount of additional Class A common shares that would have been outstanding if all potential Class A common shares had been issued. The numerator is also increased for the net income allocated to the potential Class A common shares.
	Potential dilutive Class A common shares consist of (1) the Class A common shares issuable upon exchange of Holdings limited partnership units for APAM Class A common stock, (2) the Class A common shares issuable upon conversion of APAM convertible preferred stock and (3) unvested restricted shares of Class A common stock. In periods of net loss available to common stockholders, all of these securities are anti-dilutive.
Recent accounting pronouncements	In March 2013, the FASB issued ASU 2013-05, Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity. The ASU clarifies the interaction between ASC 810-10, Consolidation-Overall, and ASC 830-30, Foreign Currency Matters-Translation of Financial Statements, when releasing the cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business (other than a sale of in substance real estate or conveyance of oil and gas mineral rights) within a foreign entity. The ASU was adopted prospectively on January 1, 2014 and did not have an impact on the Company’s consolidated financial statements.
	In June 2013, the FASB issued ASU 2013-08, Investment Companies (Topic 946). The ASU changes the approach to the investment company assessment in Topic 946, clarifying the characteristics of an investment company and provides comprehensive guidance for assessing whether an entity is an investment company. This update would also require an investment company to measure noncontrolling ownership interests in other investment companies at fair value rather than using the equity method of accounting and to include additional disclosures. The ASU was adopted prospectively on January 1, 2014 and did not have an impact on the Company’s consolidated financial statements.
	In April 2014, the FASB issued ASU 2014-08, Presentation of Financial Statements and Property, Plant, and Equipment - Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity. ASU 2014-08 modified the definition of discontinued operations by limiting discontinued operations reporting to disposals of components of an entity that represent strategic shifts that have (or will have) a major effect on an entity’s operations and financial results. The ASU was adopted prospectively during the year ended December 31, 2014.
	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes existing accounting standards for revenue recognition and creates a single framework. The new guidance will be effective on January 1, 2017, and requires either a retrospective or a modified retrospective approach to adoption. Early application is prohibited. The Company is currently evaluating its transition method and the potential impact on its consolidated financial statements.
	In August 2014, the FASB issued ASU 2014-15, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. The ASU will explicitly require management to assess an entity’s ability to continue as a going concern, and to provide related footnote disclosure in certain circumstances. The new guidance will be effective for the year ending December 31, 2016. Early adoption is permitted. The Company does not expect the adoption of this ASU to have an impact on its consolidated financial statements.
	In February 2015, the FASB issued ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis. The ASU modifies existing consolidation guidance for determining whether certain legal entities should be consolidated. The new guidance will be effective on January 1, 2016, and requires either a retrospective or a modified retrospective approach to adoption. Early adoption is permitted. The Company is currently evaluating the potential impact on its consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Distribution And Marketing Fees [Table Text Block]
		For the Year Ended December 31,
		2014		2013		2012
	Total intermediary fees incurred	$	133,745	$	112,360	$	88,818
	Less: fees incurred by Artisan Funds	89,372		78,036		62,736
	Fees incurred by Artisan	44,373		34,324		26,082
	Other marketing expenses	4,759		4,074		2,908
	Total distribution and marketing	$	49,132	$	38,398	$	28,990

Investment_Securities_Tables

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Schedule of available-for-sale securities	The disclosures below include details of Artisan’s investments. Investments held by Launch Equity are described in Note 9, “Variable and Voting Interest Entities”.
		Cost		Unrealized		Unrealized			Fair Value
				Gains		Losses
	31-Dec-14
	Mutual funds	$	5,618	$	1,096	$	(2	)	$	6,712
	31-Dec-13
	Mutual funds	$	6,190	$	1,614	$	—		$	7,804

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair value hierarchy of assets and liabilities	The following provides the hierarchy of inputs used to derive fair value of Artisan’s assets and liabilities that are financial instruments as of December 31, 2014 and 2013:
		Assets and Liabilities at Fair Value
		Total			Level 1		Level 2		Level 3
	31-Dec-14
	Assets
	Cash equivalents	$	44,004		$	44,004	$	—	$	—
	Mutual funds	6,712			6,712		—		—
	31-Dec-13
	Assets
	Cash equivalents	$	105,001		$	105,001	$	—	$	—
	Mutual funds	7,804			7,804		—		—
Inputs used to derive fair value
		6-Nov-13
	Observable assumptions:
	Price per share of Class A common stock	$	61.25
	Remaining term of CVRs	2.68 years
	Unobservable assumptions:
	Expected price volatility of Class A common stock	32		%
	Dividend yield rate	4.4		%
	Discount rate	5		%
Level 3 liabilities rollforward	The following table is a reconciliation of the beginning and ending balance of the liability measured at fair value using significant unobservable inputs (Level 3) as of December 31, 2013:
	Balance at December 31, 2012	$	—
	Issuance of contingent value rights	55,440
	(Gains) losses included in earnings	(49,570		)
	Liability extinguished upon termination	5,870
	Balance at December 31, 2013	$	—

Borrowings_Tables

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Schedule of borrowings	:
		Maturity		Outstanding Balance		Interest Rate Per Annum
	Revolving credit agreement	Aug-17		—		NA
	Senior notes
	Series A	Aug-17		60,000		4.98	%
	Series B	Aug-19		50,000		5.32	%
	Series C	Aug-22		90,000		5.82	%
	Total borrowings			$	200,000
Aggregate maturities of debt obligations	As of December 31, 2014, the aggregate maturities of debt obligations, based on their contractual terms, are as follows:
	2015	$	—
	2016	—
	2017	60,000
	2018	—
	2019	50,000
	Thereafter	90,000
		$	200,000

Derivative_Instruments_Tables

Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gains (losses) recognized on derivative instruments	The following table presents gains (losses) recognized on derivative instruments for the years ended December 31, 2014, 2013 and 2012:
			For the Year Ended December 31,
			2014				2013				2012
		Income Statement Classification	Gains		Losses		Gains		Losses		Gains		Losses
	Contingent value rights	Net gain on the valuation of contingent value rights	$	—	$	—	$	49,570	$	—	$	—	$	—
	Interest rate swap	Other non-operating income (loss)	—		—		—		—		—		$	(69	)
	Total		$	—	$	—	$	49,570	$	—	$	—	$	(69	)

Noncontrolling_Interest_Holdin1

Noncontrolling Interest - Holdings Change in Ownership Impact (Tables)	12 Months Ended
	Dec. 31, 2014
Change in Ownership Impact on Equity [Abstract]
Change in ownership [Table Text Block]
	Statement of Financial Condition	For the Year Ended December 31,
		2014			2013
	Additional paid-in capital	$	(10,481	)	$	(50,312	)
	Noncontrolling interest - Artisan Partners Holdings	10,105			50,167
	Accumulated other comprehensive income	258			(168		)
	Deferred tax assets	118			313
	Net balance sheet impact	—			—

Variable_and_Voting_Interest_E1

Variable and Voting Interest Entities (Tables)	12 Months Ended
	Dec. 31, 2014
Variable Interest Entity, Measure of Activity [Abstract]
Condensed Consolidating Statements of Financial Condition	Condensed Consolidating Statements of Financial Condition
		December 31, 2013
		Before			Launch Equity			Eliminations			As Reported
		Consolidation
	Cash and cash equivalents	$	211,839		$	—		$	—		$	211,839
	Cash and cash equivalents of Launch Equity	—			19,156			—			19,156
	Accounts receivable	64,110			—			—			64,110
	Accounts receivable of Launch Equity	—			7,428			—			7,428
	Investment securities of Launch Equity	1			63,364			(1		)	63,364
	Other assets	215,501			—			—			215,501
	Total assets	$	491,451		$	89,948		$	(1	)	$	581,398
	Payables of Launch Equity	$	—		$	7,485		$	—		$	7,485
	Securities sold, not yet purchased of Launch Equity	—			31,990			—			31,990
	Other liabilities	409,612			—			—			409,612
	Total liabilities	409,612			39,475			—			449,087
	Total stockholders’ equity	43,779			—			—			43,779
	Noncontrolling interest - Artisan Partners Holdings	38,060			1			(1		)	38,060
	Noncontrolling interest - Launch Equity	—			50,472			—			50,472
	Total equity	81,839			50,473			(1		)	132,311
	Total liabilities and equity	$	491,451		$	89,948		$	(1	)	$	581,398
Condensed Consolidating Statements of Operations	Condensed Consolidating Statement of Operations
		For the Year Ended
		December 31, 2014
		Before			Launch Equity			Eliminations			As Reported
		Consolidation
	Total revenues	$	829,155		$	—		$	(454	)	$	828,701
	Total operating expenses	522,252			—			(454		)	521,798
	Operating income (loss)	306,903			—			—			306,903
	Non-operating income (loss)	(15,360		)	—			—			(15,360		)
	Net gains of Launch Equity	—			(3,964		)	—			(3,964		)
	Total non-operating income (loss)	(15,360		)	(3,964		)	—			(19,324		)
	Income (loss) before income taxes	291,543			(3,964		)	—			287,579
	Provision for income taxes	48,829			—			—			48,829
	Net income (loss)	242,714			(3,964		)	—			238,750
	Less: Net income attributable to noncontrolling interests - Artisan Partners Holdings	173,085			—			—			173,085
	Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	—			(3,964		)	—			(3,964		)
	Net income attributable to Artisan Partners Asset Management Inc.	$	69,629		$	—		$	—		$	69,629
	Condensed Consolidating Statement of Operations
		For the Year Ended
		December 31, 2013
		Before			Launch Equity			Eliminations			As Reported
		Consolidation
	Total revenues	$	688,333		$	—		$	(2,492	)	$	685,841
	Total operating expenses	949,537			—			(2,492		)	947,045
	Operating income (loss)	(261,204		)	—			—			(261,204		)
	Non-operating income (loss)	42,839			—			—			42,839
	Net gains of Launch Equity	—			10,623			—			10,623
	Total non-operating income (loss)	42,839			10,623			—			53,462
	Income (loss) before income taxes	(218,365		)	10,623			—			(207,742		)
	Provision for income taxes	26,390			—			—			26,390
	Net income (loss)	(244,755		)	10,623			—			(234,132		)
	Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	(269,562		)	—			—			(269,562		)
	Less: Net income attributable to noncontrolling interests - Launch Equity	—			10,623			—			10,623
	Net income attributable to Artisan Partners Asset Management Inc.	$	24,807		$	—		$	—		$	24,807
	Condensed Consolidating Statement of Operations
		For the Year Ended
		December 31, 2012
		Before			Launch Equity			Eliminations			As Reported
		Consolidation
	Total revenues	$	506,982		$	—		$	(1,404	)	$	505,578
	Total operating expenses	459,895			—			(1,404		)	458,491
	Operating income (loss)	47,087			—			—			47,087
	Non-operating income (loss)	(12,280		)	—			—			(12,280		)
	Net gains of Launch Equity	—			8,817			—			8,817
	Total non-operating income (loss)	(12,280		)	8,817			—			(3,463		)
	Income (loss) before income taxes	34,807			8,817			—			43,624
	Provision for income taxes	1,047			—			—			1,047
	Net income (loss)	33,760			8,817			—			42,577
	Less: Net income attributable to noncontrolling interests - Artisan Partners Holdings	33,760						—			33,760
	Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	—			8,817			—			8,817
	Net income attributable to Artisan Partners Asset Management Inc.	$	—		$	—		$	—		$	—
Launch Equity
Variable Interest Entity [Line Items]
Fair value hierarchy of assets and liabilities	The following table presents the fair value hierarchy levels of investments and liabilities held by Launch Equity which were measured at fair value as of December 31, 2013:
		Assets and Liabilities at Fair Value:
		Total			Level 1			Level 2			Level 3
	31-Dec-13
	Assets
	Investment securities – long position	$	63,364		$	63,364		$	—		$	—
	Liabilities
	Investment securities – short position	$	31,990		$	31,990		$	—		$	—

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2014
Stockholders' Equity Note [Abstract]
Authorized and outstanding equity	As of December 31, 2014, APAM had the following authorized and outstanding equity:
					Outstanding
		Authorized			31-Dec-14			31-Dec-13			Voting Rights (1)	Economic Rights
	Common shares
	Class A, par value $0.01 per share	500,000,000			34,238,131			19,807,436			1 vote per share	Proportionate
	Class B, par value $0.01 per share	200,000,000			21,463,033			25,271,889			5 votes per share	None
	Class C, par value $0.01 per share	400,000,000			17,226,379			25,206,554			1 vote per share	None
	Preferred shares
	Convertible preferred, par value $0.01 per share	15,000,000			—			1,198,128			1 vote per share	Proportionate
	(1) The Company’s employees to whom Artisan has granted equity have entered into a stockholders agreement with respect to all shares of APAM common stock they have acquired from the Company and any shares they may acquire from the Company in the future, pursuant to which they granted an irrevocable voting proxy to a Stockholders Committee. As of December 31, 2014, Artisan’s employees held 2,700,634 shares of Class A common stock subject to the agreement and all 21,463,033 outstanding shares of Class B common stock.
Issuance (Cancellation) of Stock [Table Text Block]
		Total Stock		Class A Common Stock		Class B Common Stock		Class C Common Stock		Convertible Preferred Stock
	Balance at January 1, 2013	—		—		—		—		—
	Initial Public Offering	69,991,505		12,712,279		26,271,120		28,442,643		2,565,463
	2013 Follow-On Offering	—		5,520,000		—		(4,152,665	)	(1,367,335	)
	Restricted Share Award Grants	1,575,157		1,575,157		—		—		—
	Employee-Partner Terminations	(82,655	)	—		(999,231	)	916,576		—
	Balance at December 31, 2013	71,484,007		19,807,436		25,271,889		25,206,554		1,198,128
	2014 Follow-On Offering	—		9,284,337		(3,705,453	)	(4,835,767	)	(743,117	)
	H&F Conversion	—		1,836,898		—		(1,381,887	)	(455,011	)
	Holdings Common Unit Exchanges	—		1,865,924		(10,260	)	(1,855,664	)	—
	Restricted Share Award Grants	1,444,688		1,444,688		—		—		—
	Restricted Share Award Net Share Settlement	(5,880	)	(5,880	)	—		—		—
	Restricted Stock Unit Settlement (1)	4,728		4,728		—		—		—
	Employee-Partner Terminations	—		—		(93,143	)	93,143		—
	Balance at December 31, 2014	72,927,543		34,238,131		21,463,033		17,226,379		—
	(1) There were 20,612 and 16,670 restricted stock units outstanding at December 31, 2014 and 2013, respectively.

Compensation_and_Benefits_Tabl

Compensation and Benefits (Tables)	12 Months Ended
	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Components of Compensation Expense [Table Text Block]
		For the Year Ended December 31,
		2014		2013		2012
	Salaries, incentive compensation and benefits (1)	$	327,154	$	301,621	$	227,258
	Restricted share compensation expense	23,148		7,542		—
	Total salaries, incentive compensation and benefits	350,302		309,163		227,258
	Pre-offering related compensation - share-based awards	64,664		404,160		101,682
	Pre-offering related compensation - other	—		143,035		54,153
	Total compensation and benefits	$	414,966	$	856,358	$	383,093
	(1) Excluding restricted share compensation expense
Restricted Share Activity [Table Text Block]	The following table summarizes the restricted share activity for the years ended December 31, 2014 and 2013:
		Weighted-Average Grant Date Fair Value		Number of Awards
	Unvested at January 1, 2013	$	—	—
	Granted	$	52.36	1,575,157
	Forfeited	—		—
	Vested	—		—
	Unvested at January 1, 2014	$	52.36	1,575,157
	Granted	$	52.85	1,444,688
	Forfeited	—		—
	Vested	$	52.61	(319,211	)
	Unvested at December 31, 2014	$	52.59	2,700,634
Pre-offering Related Compensation [Table Text Block]	Pre-offering related compensation consists of the following:
		For the Year Ended December 31,
		2014		2013		2012
	Change in value of Class B liability awards	$	—	$	41,942	$	101,682
	Class B award modification expense	—		287,292		—
	Amortization expense on pre-offering Class B awards	64,664		74,926		—
	Pre-offering related compensation - share-based awards	64,664		404,160		101,682
	Pre-offering related cash incentive compensation	—		56,788		—
	Pre-offering related bonus make-whole compensation	—		20,520		—
	Distributions on Class B liability awards	—		65,727		54,153
	Pre-offering related compensation - other	—		143,035		54,153
	Total pre-offering related compensation	$	64,664	$	547,195	$	155,835
Class B Award Activity [Table Text Block]	he following table summarizes the activity related to unvested Class B awards for the years ended December 31, 2014 and 2013:
		Weighted-Average Grant Date Fair Value		Number of Class B Awards
	Unvested Class B awards at March 12, 2013	$	30	9,911,720
	Granted	—		—
	Forfeited	30		(82,655	)
	Vested	30		(2,579,223	)
	Unvested Class B awards at January 1, 2014	$	30	7,249,842
	Granted	—		—
	Forfeited	—		—
	Vested	30		(3,204,826	)
	Unvested at December 31, 2014	$	30	4,045,016

Income_Taxes_and_Related_Payme1

Income Taxes and Related Payments (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Components of the provision for income taxes	Components of the provision for income taxes consist of the following:
		For the Year Ended December 31,
		2014				2013		2012
	Current:
	Federal	$	27,094			$	13,816	$	—
	State and local	3,982				2,719		—
	Foreign	184				471		1,047
	Total	31,260				17,006		1,047
	Deferred:
	Federal	21,402				9,089		—
	State and local	(3,833		)		295		—
	Total	17,569				9,384		—
	Income tax expense	$	48,829			$	26,390	$	1,047
Reconciliation of effective tax rate	The provision for income taxes from operations differs from the amount of income tax computed by applying the applicable U.S. statutory federal income tax rate to income before provision for income taxes as follows:
		For the Period from January 1, 2014 through December 31, 2014			For the Period from March 12, 2013 through December 31, 2013
	U.S. Federal Statutory Rate	35	%		35	%
	Non-deductible share-based compensation	3.1			2.6
	Rate benefit from the flow through entity	(20.8	)		(27.4	)
	Other	(0.3	)		1.4
	Effective Tax Rate	17	%		11.6	%
Components of deferred tax assets	Net deferred tax assets comprise the following:
		As of December 31, 2014				As of December 31, 2013
	Deferred tax assets:
	Amortizable basis (1)	$	551,952			$	183,858
	Other (2)	10,444				4,049
	Total deferred tax assets	562,396				187,907
	Less: valuation allowance (3)	—				—
	Net deferred tax assets	$	562,396			$	187,907
	(1) Represents the unamortized step-up of tax basis from the merger described above, the purchase of common and preferred units by APAM, and the exchange of common and preferred units for Class A common shares of APAM.
	(2) Represents the net deferred tax assets associated with the merger described above and other miscellaneous deferred tax assets.
	(3) Artisan assessed whether the deferred tax assets would be realizable and determined based on its history of taxable income that the benefits would more likely than not be realized. Accordingly, no valuation allowance is required.

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
		As of December 31, 2014			As of December 31, 2013
	Unrealized gain on investments	$	326		$	303
	Foreign currency translation	(120		)	75
	Accumulated Other Comprehensive Income (Loss)	$	206		$	378

Earnings_loss_Per_Share_Tables

Earnings (loss) Per Share (Tables)	12 Months Ended
	Dec. 31, 2014
Earnings Per Share [Abstract]
Computation of basic and diluted net income (loss) per share
	Basic and Diluted Earnings Per Share	For the period from January 1, 2014 through December 31, 2014				For the period from March 12, 2013 through December 31, 2013
	Numerator:
	Net income (loss) attributable to APAM	$	69,629			$	24,807
	Less: Convertible preferred stock deemed dividends	22,694				32,215
	Less: Subsidiary preferred equity deemed dividends	27,619				19,457
	Less: Allocation to participating securities	29,616				1,300
	Net income (loss) available to common stockholders	$	(10,300	)		$	(28,165	)
	Denominator:
	Weighted average shares outstanding	27,514,394				13,780,378
	Earnings (loss) per share	$	(0.37	)		$	(2.04	)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
	Anti-Dilutive Weighted Average Shares Outstanding	For the period from January 1, 2014 through December 31, 2014			For the period from March 12, 2013 through December 31, 2013
	Holdings limited partnership units	42,194,109			53,867,514
	Convertible preferred stock	355,228			2,305,018
	Unvested restricted shares	2,131,068			894,732
	Total	44,680,405			57,067,264

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment [Table Text Block]	The composition of property and equipment at December 31, 2014 and 2013 are as follows:
		As of December 31,
		2014			2013
	Computers and equipment	$	5,910		$	6,259
	Computer software	4,021			5,356
	Furniture and fixtures	6,654			4,166
	Leasehold improvements	17,049			11,416
	Total Cost	33,634			27,197
	Less: Accumulated depreciation	(17,040		)	(18,437		)
	Property and equipment, net of accumulated depreciation	$	16,594		$	8,760

Lease_Commitments_Tables

Lease Commitments (Tables)	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	At December 31, 2014, the aggregate future minimum payments for leases for each of the following five years and thereafter are as follows:
	2015	9,642
	2016	9,432
	2017	8,650
	2018	8,722
	2019	7,180
	Thereafter	33,633
	Total	$	77,259

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2014
Artisan Funds
Related Party Transaction [Line Items]
Schedule of related party transactions	Fees for managing the Funds and amounts waived or reimbursed by Artisan for fees and expenses (including management fees) are as follows:
		For the Year Ended December 31,
		2014		2013		2012
	Investment management fees:
	Artisan Funds	$	561,202	$	455,047	$	333,218
	Fee waiver / expense reimbursement:
	Artisan Funds	$	63	$	291	$	171
Artisan Global Funds
Related Party Transaction [Line Items]
Schedule of related party transactions	Fees for managing Artisan Global Funds and amounts reimbursed to Artisan Global Funds by Artisan are as follows:
		For the Year Ended December 31,
		2014		2013		2012
	Investment management fees:
	Artisan Global Funds	$	14,172	$	9,291	$	3,020
	Fee waiver / expense reimbursement:
	Artisan Global Funds	$	493	$	752	$	653

Concentration_of_Credit_Risk_a1

Concentration of Credit Risk and Significant Relationships (Tables)	12 Months Ended
	Dec. 31, 2014
Risks and Uncertainties [Abstract]
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]	Services provided to the following Artisan Funds generated over ten percent of total revenues for the periods presented. Fees for managing the Funds and the percentage of total revenues are as follows:
		For the Year Ended December 31,
	Artisan Fund	2014			2013			2012
	U.S. Mid-Cap Growth	$	90,683		$	76,327		$	59,841
	Percent of total revenues	10.9		%	11.1		%	11.8		%
	U.S. Mid-Cap Value	$	106,463		$	93,774		$	73,720
	Percent of total revenues	12.9		%	13.7		%	14.6		%
	Non-U.S. Growth	$	156,537		$	116,173		$	86,367
	Percent of total revenues	18.9		%	16.9		%	17.1		%
	Non-U.S. Value	$	108,837		$	88,342		$	54,851
	Percent of total revenues	13.1		%	12.9		%	10.9		%
	Artisan generates a portion of its revenues from clients domiciled in various countries outside the United States. For the years ended December 31, 2014, 2013 and 2012, approximately 9%, 9% and 7% of Artisan’s investment management fees,
	respectively, were earned from clients located outside of the United States.

Selected_Quarterly_Financial_D1

Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information [Table Text Block]	The following table presents unaudited quarterly results of operations for 2014 and 2013. These quarterly results reflect all normal recurring adjustments that are, in the opinion of management, necessary for a fair statement of the results. Revenues and net income can vary significantly from quarter to quarter due to the nature of Artisan’s business activities.
		For the Quarter Ended
		March 31, 2014			June 30, 2014		Sept. 30, 2014		Dec. 31, 2014
	Total revenues	$	201,792		$	208,487	$	212,406	$	206,016
	Operating income (loss)	$	67,152		$	80,825	$	81,016	$	77,910
	Net income (loss) attributable to noncontrolling interests-Artisan Partners Holdings	$	44,149		$	45,547	$	43,243	$	40,146
	Net income attributable to Artisan Partners Asset Management Inc.	$	8,636		$	19,260	$	20,439	$	21,294
	Earnings per Share:
	Basic and diluted	$	(2.29	)	$	0.42	$	0.57	$	0.58
		For the Quarter Ended
		March 31, 2013			June 30, 2013		Sept. 30, 2013		Dec. 31, 2013
	Total revenues	$	148,223		$	161,933	$	178,092	$	197,593
	Operating income (loss)	$	(421,314	)	$	48,384	$	53,360	$	58,366
	Net income (loss) attributable to noncontrolling interests-Artisan Partners Holdings	$	(407,123	)	$	42,442	$	44,614	$	50,505
	Net income attributable to Artisan Partners Asset Management Inc.	$	2,950		$	5,798	$	5,977	$	10,082
	Earnings per Share:
	Basic	$	0.19		$	0.38	$	0.42	$	(3.04	)
	Diluted	$	0.19		$	0.38	$	0.35	$	(3.04	)

Nature_of_Business_and_Organiz1

Nature of Business and Organization (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 12, 2013
	Investment_strategies
	investment_teams
Class of Stock [Line Items]
Number Of Autonomous Investment Teams	6
APAM economic interest in Artisan Partners Holdings LP (as a percent)	47.00%	41.00%	29.00%	24.00%
Number of investment strategies	14
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest	100.00%
Ratio of Indebtedness to Net Capital	0.32
Net Capital	$132
Alternative Excess Net Capital	107
Capital	$25

Reorganization_and_IPO_Details

Reorganization and IPO (Details) (USD $)	0 Months Ended			1 Months Ended	9 Months Ended	10 Months Ended	12 Months Ended			0 Months Ended
	Mar. 12, 2014	Nov. 06, 2013	Mar. 12, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 16, 2014	Mar. 12, 2014	Dec. 01, 2014	Aug. 25, 2014	Jun. 02, 2014	Mar. 31, 2014
Reorganization and Inital Public Offering [Line Items]
Shares issued during the period (shares)			69,991,505
Sale of Stock, Price Per Share			$62
Liability of Contingent Value Rights		$5,900,000
Retained profits distributions to pre-IPO partners				105,300,000
Repayments of Lines of Credit				90,000,000			0	90,000,000	0
Purchase of 2,720,823 Class A common units from certain investors				76,319,000			0	76,319,000	0
Class B liability awards			552,000,000
Proceeds from Issuance Initial Public Offering				353,400,000		-353,414,000
Pre-offering related compensation - other							0	143,035,000	54,153,000
APAM economic interest in Artisan Partners Holdings LP (as a percent)			24.00%		47.00%	29.00%	47.00%	29.00%							41.00%
Initial establishment of deferred tax assets	287,400,000	123,900,000			99,300,000		386,700,000
Initial establishment of amounts payable under tax receivable agreements	244,300,000				84,400,000		328,700,000
Preferred Stock Dividends and Other Adjustments		19,457,000				32,215,000	22,694,000	32,215,000
Cash incentive compensation
Reorganization and Inital Public Offering [Line Items]
Pre-offering related compensation - other							0	56,788,000	0
General Partnership Units [Member]
Reorganization and Inital Public Offering [Line Items]
Shares issued during the period (shares)		5,520,000					1,865,924			1,381,887	9,284,337
Class A Common Stock
Reorganization and Inital Public Offering [Line Items]
Shares issued during the period (shares)		5,520,000								1,836,898	9,284,337
Proceeds from Issuance of Common Stock		296,800,000
Shares repurchased and retired during the period (shares)							5,880
Shares repurchased during the period				2,720,823
Conversion of Stock, Shares Converted										1,381,887
Convertible Preferred Stock [Member]
Reorganization and Inital Public Offering [Line Items]
Shares repurchased and retired during the period (shares)	743,117
Conversion of Stock, Shares Converted										455,011
Capital Units [Member]
Reorganization and Inital Public Offering [Line Items]
Shares repurchased and retired during the period (shares)		4,152,665						82,655			6,284,337
Conversion of Stock, Shares Converted							1,865,924
Subsidiary Preferred Stock [Member]
Reorganization and Inital Public Offering [Line Items]
Shares repurchased and retired during the period (shares)											2,256,883
Preferred Stock Dividends and Other Adjustments						19,457,000	27,619,000
Conversion of Stock, Shares Converted										1,381,887
Capital Unit, Class A [Member]
Reorganization and Inital Public Offering [Line Items]
Conversion of Stock, Shares Converted												116,571	1,567,968	171,125
Capital Unit, Class B [Member]
Reorganization and Inital Public Offering [Line Items]
Conversion of Stock, Shares Converted													10,260
Follow On Offering [Member]
Reorganization and Inital Public Offering [Line Items]
Initial establishment of deferred tax assets							392,058,000	123,888,000	0
Initial establishment of amounts payable under tax receivable agreements		105,300,000					328,667,000	105,305,000	0
Convertible Preferred Stock [Member]
Reorganization and Inital Public Offering [Line Items]
Preferred Stock Dividends and Other Adjustments		$32,215,000

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Tax Receivable Agreements (Details) (USD $)	12 Months Ended
	Dec. 31, 2014
	TRA
Accounting Policies [Abstract]
Number of Tax Receivable Agreements	2
Tax Receivable Agreements Basis Spread On Variable Rate	10000.00%
TRA percent of savings to be paid to shareholders	85.00%
TRA percent of savings to be retained by entity	15.00%
TRA, payment period from filing	125 days
Loss Contingency Accrual	$0

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Distribution Fees (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Abstract]
Noninterest Expense Transfer Agent and Custodian Fees	$133,745	$112,360	$88,818
Fees Allocated To Other Funds	89,372	78,036	62,736
Authorized Agent Fees Net	44,373	34,324	26,082
Other Selling and Marketing Expense	4,759	4,074	2,908
Distribution and marketing	$49,132	$38,398	$28,990

Summary_of_Significant_Account5

Summary of Significant Accounting Policies - Additional Information (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 16, 2012
	segment
Significant Accounting Policies [Line Items]
Partnership distributions	$427,200,000	$332,000,000	$135,000,000
Accrued fees to authorized agents	6,600,000	5,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Payments to settle derivative	0	0	1,135,000
Portfolio Manager Performance Period	3 years
Number of Operating Segments	1
Term Loan
Significant Accounting Policies [Line Items]
Debt principal amount			400,000,000
Interest Rate Swap
Significant Accounting Policies [Line Items]
Payments to settle derivative				1,100,000
Class B Liability Awards
Significant Accounting Policies [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Excluding APAM
Significant Accounting Policies [Line Items]
Partnership distributions	$266,800,000	$290,500,000

Investment_Securities_Details

Investment Securities (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	$38
Cost	5,618	6,190
Unrealized gains	1,096	1,614
Unrealized losses	-2	0
Fair Value	$6,712	$7,804

Investment_Securities_Narrativ

Investment Securities - Narrative (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	positions	positions
Schedule of Available-for-sale Securities [Line Items]
Investment Income, Dividend	$365	$1,019	$243
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	0	0
Payments to Acquire Investments	10,031	5,000	0
Payments for (Proceeds from) Investments	-11,262
Gain (Loss) on Investments	$294	$4,119	$497

Fair_Value_Measurements_Fair_v

Fair Value Measurements - Fair value hierarchy of assets and liabilities (Details) (Recurring, USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Total Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$44,004	$105,001
Mutual funds	6,712	7,804
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	44,004	105,001
Mutual funds	6,712	7,804
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Mutual funds	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Mutual funds	$0	$0

Fair_Value_Measurements_Valuat

Fair Value Measurements - Valuation techniques and fair value assumptions (Details) (USD $)	12 Months Ended			0 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 06, 2013
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Net gain on the valuation of contingent value rights	$0	($49,570)	$0
Recurring | Level 3 | Contingent Value Rights
Observable assumptions:
Price per share of Class A common stock				$61.25
Remaining term of CVRs				2 years 8 months 4 days
Unobservable assumptions:
Expected price volatility of Class A common stock (percent)				32.00%
Dividend yield rate (percent)				4.40%
Discount rate (percent)				5.00%

Fair_Value_Measurements_Rollfo

Fair Value Measurements - Rollforward of Level 3 liabilities (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 06, 2013
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Contingent value rights				$5,900,000
Net gain on the valuation of contingent value rights	0	-49,570,000	0
Recurring | Level 3 | Contingent Value Rights
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance at beginning of period		0
Issuance of contingent value rights		55,440,000
Liability extinguished upon termination		5,870,000
Balance at end of period		$0

Borrowings_Components_of_Borro

Borrowings - Components of Borrowings (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Total outstanding balance	$200,000	$200,000
Senior notes | Series A
Debt Instrument [Line Items]
Total outstanding balance	60,000	60,000
Interest rate per annum	4.98%	4.98%
Senior notes | Series B
Debt Instrument [Line Items]
Total outstanding balance	50,000	50,000
Interest rate per annum	5.32%	5.32%
Senior notes | Series C
Debt Instrument [Line Items]
Total outstanding balance	90,000	90,000
Interest rate per annum	5.82%	5.82%
Revolving credit agreement
Debt Instrument [Line Items]
Total outstanding balance	$0	$0

Borrowings_Aggregate_Maturitie

Borrowings - Aggregate Maturities of Debt Obligations (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]
2015	$0
2016	0
2017	60,000
2018	0
2019	50,000
Thereafter	90,000
Borrowings	$200,000	$200,000

Borrowings_Additional_Informat

Borrowings - Additional Information (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 16, 2012
Debt Instrument [Line Items]
Proceeds from issuance of notes payable	$0	$0	$200,000,000
Proceeds from draw on revolving credit facility	0	0	90,000,000
Interest expense incurred on debt and credit facilities	11,100,000	11,400,000	10,100,000
Revolving credit agreement
Debt Instrument [Line Items]
Debt Instrument, Term				5 years
Proceeds from draw on revolving credit facility				100,000,000
Commitment fee percentage	0.18%
Revolving credit agreement | Minimum
Debt Instrument [Line Items]
Commitment fee percentage	0.18%
Revolving credit agreement | Maximum
Debt Instrument [Line Items]
Commitment fee percentage	0.63%
Revolving credit agreement | LIBOR adjusted by a statutory reserve percentage | Minimum
Debt Instrument [Line Items]
Spread on variable rate	1.50%
Revolving credit agreement | LIBOR adjusted by a statutory reserve percentage | Maximum
Debt Instrument [Line Items]
Spread on variable rate	3.00%
Revolving credit agreement | Prime rate
Debt Instrument [Line Items]
Spread on variable rate	0.50%
Revolving credit agreement | Federal funds effective rate
Debt Instrument [Line Items]
Spread on variable rate	0.50%
Revolving credit agreement | One-month LIBOR adjusted by a statutory reserve percentage
Debt Instrument [Line Items]
Spread on variable rate	1.00%
Revolving credit agreement | Margin based on leverage ratio | Minimum
Debt Instrument [Line Items]
Spread on variable rate	0.50%
Revolving credit agreement | Margin based on leverage ratio | Maximum
Debt Instrument [Line Items]
Spread on variable rate	2.00%
Term Loan
Debt Instrument [Line Items]
Debt principal amount			400,000,000
Senior notes
Debt Instrument [Line Items]
Proceeds from issuance of notes payable				200,000,000
Level 2 | Recurring
Debt Instrument [Line Items]
Borrowings	$204,400,000

Derivative_Instruments_Income_

Derivative Instruments - Income statement disclosures (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Interest Expense	$11,572	$11,869	$11,442
Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Interest Expense			700
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain on Derivative	0	49,570	0
Derivative, Loss on Derivative	0	0	-69
Not Designated as Hedging Instrument | Contingent Value Rights | Net gain on the valuation of contingent value rights
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain on Derivative	0	49,570	0
Derivative, Loss on Derivative	0	0	0
Not Designated as Hedging Instrument | Interest Rate Swap | Loss on interest rate swap
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain on Derivative	0	0	0
Derivative, Loss on Derivative	$0	$0	($69)

Derivative_Instruments_Additio

Derivative Instruments - Additional information (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 16, 2012	Nov. 22, 2010
Derivative [Line Items]
Debt Instrument, Description of Variable Rate Basis	3
Payments to settle derivative	$0	$0	$1,135,000
Interest Expense	11,572,000	11,869,000	11,442,000
Interest Rate Swap
Derivative [Line Items]
Notional amount of derivatives					200,000,000
Derivative, fixed interest rate					1.04%
Payments to settle derivative				1,100,000
Interest Expense			$700,000

Noncontrolling_Interest_Holdin2

Noncontrolling Interest - Holdings (Details) (USD $)	0 Months Ended	10 Months Ended	12 Months Ended	0 Months Ended		12 Months Ended	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 12, 2013	Dec. 31, 2013	Dec. 31, 2014	Mar. 12, 2014	Nov. 06, 2013	Dec. 31, 2013	Jun. 16, 2014	Mar. 31, 2014
APAM economic interest in Artisan Partners Holdings LP (as a percent)	24.00%	29.00%	47.00%			29.00%		41.00%
Shares issued during the period (shares)	69,991,505
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax		$0	$0
Capital Units [Member]
Conversion of Stock, Shares Converted			1,865,924
Shares repurchased and retired during the period (shares)				6,284,337	4,152,665	82,655
Preferred Stock
Shares repurchased and retired during the period (shares)				3,000,000	1,367,335
General Partnership Units [Member]
Shares issued during the period (shares)			1,865,924	9,284,337	5,520,000		1,381,887
Subsidiary Preferred Stock [Member]
Conversion of Stock, Shares Converted							1,381,887
Shares repurchased and retired during the period (shares)				2,256,883
Class A Common Stock
Shares issued during the period (shares)				9,284,337	5,520,000		1,836,898
Conversion of Stock, Shares Converted							1,381,887
Shares repurchased and retired during the period (shares)			5,880
Additional Paid-in Capital
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax		50,312	10,481
Deferred Tax Assets [Member]
Cumulative impact of changes in ownership of Artisan Partners Holdings LP, net of tax		$313	$118
Restricted Stock [Member] | General Partnership Units [Member]
Shares issued during the period (shares)			1,444,688			1,575,157
Restricted Stock [Member] | Class A Common Stock
Shares issued during the period (shares)			1,444,688			1,575,157

Variable_and_Voting_Interest_E2

Variable and Voting Interest Entities - Condensed Consolidating Statements of Financial Condition (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Mar. 12, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Cash and cash equivalents	$182,284	$211,839		$141,159	$126,956
Cash and cash equivalents of Launch Equity	0	19,156
Accounts receivable	69,361	64,110
Accounts receivable of Launch Equity	0	7,428
Investment securities of Launch Equity	0	63,364
Other assets		215,501
Total assets	849,452	581,398
Payables of Launch Equity	0	7,485
Securities sold, not yet purchased of Launch Equity	0	31,990
Other liabilities		409,612
Total liabilities	741,953	449,087
Total stockholders’ equity	110,876	43,779
Noncontrolling interest - Artisan Partners Holdings	-3,377	38,060
Noncontrolling interest - Launch Equity	0	50,472
Total equity (deficit)	107,499	132,311	-332,297	-672,715	-641,092
Total liabilities, redeemable preferred units and equity (deficit)	849,452	581,398
Eliminations
Cash and cash equivalents		0
Cash and cash equivalents of Launch Equity		0
Accounts receivable		0
Accounts receivable of Launch Equity		0
Investment securities of Launch Equity		-1
Other assets		0
Total assets		-1
Payables of Launch Equity		0
Securities sold, not yet purchased of Launch Equity		0
Other liabilities		0
Total liabilities		0
Total stockholders’ equity		0
Noncontrolling interest - Artisan Partners Holdings		-1
Noncontrolling interest - Launch Equity		0
Total equity (deficit)		-1
Total liabilities, redeemable preferred units and equity (deficit)		-1
Before Consolidation
Parent Investment in Consolidated Variable Interest Entity	1
Cash and cash equivalents		211,839
Cash and cash equivalents of Launch Equity		0
Accounts receivable		64,110
Accounts receivable of Launch Equity		0
Investment securities of Launch Equity		1
Other assets		215,501
Total assets		491,451
Payables of Launch Equity		0
Securities sold, not yet purchased of Launch Equity		0
Other liabilities		409,612
Total liabilities		409,612
Noncontrolling interest - Artisan Partners Holdings		38,060
Noncontrolling interest - Launch Equity		0
Total equity (deficit)		81,839
Total liabilities, redeemable preferred units and equity (deficit)		491,451
Launch Equity
Cash and cash equivalents		0
Cash and cash equivalents of Launch Equity		19,156
Accounts receivable		0
Accounts receivable of Launch Equity		7,428
Investment securities of Launch Equity		63,364
Other assets		0
Total assets		89,948
Payables of Launch Equity		7,485
Securities sold, not yet purchased of Launch Equity		31,990
Other liabilities		0
Total liabilities		39,475
Total stockholders’ equity		0
Noncontrolling interest - Artisan Partners Holdings		1
Noncontrolling interest - Launch Equity		50,472
Total equity (deficit)		50,473
Total liabilities, redeemable preferred units and equity (deficit)		$89,948

Variable_and_Voting_Interest_E3

Variable and Voting Interest Entities - Condensed Consolidating Statements of Operations (Details) (USD $)	3 Months Ended									10 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 12, 2013	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Total revenues		$206,016	$212,406	$208,487	$201,792	$197,593	$178,092	$161,933	$148,223		$828,701	$685,841	$505,578
Total operating expenses											521,798	947,045	458,491
Operating income		77,910	81,016	80,825	67,152	58,366	53,360	48,384	-421,314		306,903	-261,204	47,087
Non-operating Income Loss Before Net Gains of Launch Equity											-15,360	42,839	-12,280
Net gains of Launch Equity											-3,964	10,623	8,817
Total non-operating income (loss)											-19,324	53,462	-3,463
Income (loss) before income taxes											287,579	-207,742	43,624
Provision for income taxes											48,829	26,390	1,047
Net income (loss) before noncontrolling interests	-434,342									200,210	238,750	-234,132	42,577
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings		40,146	43,243	45,547	44,149	50,505	44,614	42,442	-407,123		173,085	-269,562	33,760
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity											-3,964	10,623	8,817
Net income attributable to Artisan Partners Asset Management Inc.		21,294	20,439	19,260	8,636	10,082	5,977	5,798	2,950	24,807	69,629	24,807	0
Eliminations
Total revenues											-454	-2,492	-1,404
Total operating expenses											-454	-2,492	-1,404
Operating income											0	0	0
Non-operating Income Loss Before Net Gains of Launch Equity											0	0	0
Net gains of Launch Equity											0	0	0
Total non-operating income (loss)											0	0	0
Income (loss) before income taxes											0	0	0
Provision for income taxes											0	0	0
Net income (loss) before noncontrolling interests											0	0	0
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings											0	0	0
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity											0	0	0
Net income attributable to Artisan Partners Asset Management Inc.											0	0	0
Before Consolidation
Total revenues											829,155	688,333	506,982
Total operating expenses											522,252	949,537	459,895
Operating income											306,903	-261,204	47,087
Non-operating Income Loss Before Net Gains of Launch Equity											-15,360	42,839	-12,280
Net gains of Launch Equity											0	0	0
Total non-operating income (loss)											-15,360	42,839	-12,280
Income (loss) before income taxes											291,543	-218,365	34,807
Provision for income taxes											48,829	26,390	1,047
Net income (loss) before noncontrolling interests											242,714	-244,755	33,760
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings											173,085	-269,562	33,760
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity											0	0	0
Net income attributable to Artisan Partners Asset Management Inc.											69,629	24,807	0
Launch Equity
Total revenues											0	0	0
Total operating expenses											0	0	0
Operating income											0	0	0
Non-operating Income Loss Before Net Gains of Launch Equity											0	0	0
Net gains of Launch Equity											-3,964	10,623	8,817
Total non-operating income (loss)											-3,964	10,623	8,817
Income (loss) before income taxes											-3,964	10,623	8,817
Provision for income taxes											0	0	0
Net income (loss) before noncontrolling interests											-3,964	10,623	8,817
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings											0	0
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity											-3,964	10,623	8,817
Net income attributable to Artisan Partners Asset Management Inc.											$0	$0	$0

Variable_and_Voting_Interest_E4

Variable and Voting Interest Entities - Fair Value Hierarchy of Assets and Liabilities of Launch Equity (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities of Launch Equity	$0	$63,364
Securities sold, not yet purchased of Launch Equity	0	31,990
Launch Equity
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities of Launch Equity		63,364
Securities sold, not yet purchased of Launch Equity		31,990
Launch Equity | Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities of Launch Equity		63,364
Securities sold, not yet purchased of Launch Equity		31,990
Launch Equity | Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities of Launch Equity		0
Securities sold, not yet purchased of Launch Equity		0
Launch Equity | Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities of Launch Equity		0
Securities sold, not yet purchased of Launch Equity		$0

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	10 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012	Mar. 12, 2013
Class of Stock [Line Items]
Common stock, shares outstanding	71,484,007	72,927,543		71,484,007	0
Preferred Stock, Shares Outstanding					0
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number	16,670	20,612		16,670
Common Stock, Dividends, Per Share, Cash Paid	$0.86	$3.83
Preferred Stock, Dividends, Per Share, Cash Paid		$3.81
Partnership distributions		$427,200,000		$332,000,000	$135,000,000
Class B Liability Awards
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	7,249,842	4,045,016		7,249,842		9,911,720
Unvested restricted shares
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	1,575,157	2,700,634		1,575,157	0
Class A Common Stock
Class of Stock [Line Items]
Common stock, shares authorized	500,000,000	500,000,000		500,000,000
Common stock, shares outstanding	19,807,436	34,238,131		19,807,436
Common stock, par value per share	$0.01	$0.01		$0.01
Common stock votes per share		1
Class B Common Stock
Class of Stock [Line Items]
Common stock, shares authorized	200,000,000	200,000,000		200,000,000
Common stock, shares outstanding	25,271,889	21,463,033		25,271,889
Common stock, par value per share	$0.01	$0.01		$0.01
Common stock votes per share		5	[1]
Class C Common Stock
Class of Stock [Line Items]
Common stock, shares authorized	400,000,000	400,000,000		400,000,000
Common stock, shares outstanding	25,206,554	17,226,379		25,206,554
Common stock, par value per share	$0.01	$0.01		$0.01
Common stock votes per share		1	[1]
Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Convertible preferred stock, shares authorized	15,000,000	15,000,000		15,000,000
Preferred Stock, Shares Outstanding	1,198,128	0		1,198,128
Convertible preferred stock, par value per share	$0.01	$0.01		$0.01
Preferred stock votes per share		1
Distributions on liability awards | Class B Liability Awards
Class of Stock [Line Items]
Partnership distributions		0		65,727,000	54,153,000
Artisan Partners Asset Management [Member]
Class of Stock [Line Items]
Distributions to limited partner		$160,400,000		$41,500,000
[1]	Artisan Investment Corporation and each of the Company’s employees to whom Artisan has granted equity have entered into a stockholders agreement with respect to all shares of APAM common stock they have acquired from the Company and any shares they may acquire from the Company in the future, pursuant to which they granted an irrevocable voting proxy to a Stockholders Committee. As of December 31, 2014, Artisan’s employees held 2,700,634 shares of Class A common stock subject to the agreement and all 21,463,033 outstanding shares of Class B common stock.

Stockholders_Equity_Share_Acti

Stockholders' Equity Share Activity by Class (Details)	0 Months Ended				12 Months Ended	0 Months Ended	12 Months Ended
	Mar. 12, 2013	Jun. 16, 2014	Mar. 12, 2014	Nov. 06, 2013	Dec. 31, 2014	Mar. 12, 2014	Dec. 31, 2013	Dec. 31, 2012
Common stock, shares outstanding					72,927,543		71,484,007	0
Stock Issued During Period, Shares, New Issues	-69,991,505
Class A Common Stock
Common stock, shares outstanding					34,238,131		19,807,436
Stock Issued During Period, Shares, New Issues		-1,836,898	-9,284,337	-5,520,000
Shares repurchased and retired during the period (shares)					-5,880
Common Class B [Member]
Common stock, shares outstanding					21,463,033		25,271,889
Shares repurchased and retired during the period (shares)					0
Common Class C [Member]
Common stock, shares outstanding					17,226,379		25,206,554
Shares repurchased and retired during the period (shares)					0
Convertible Preferred Stock [Member]
Shares repurchased and retired during the period (shares)						-743,117
Common Stock
Shares repurchased and retired during the period (shares)							82,655
Common Stock | Class A Common Stock
Stock Issued During Period, Shares, New Issues					0		0
Common Stock | Common Class B [Member]
Shares repurchased and retired during the period (shares)					93,143		999,231
Common Stock | Common Class C [Member]
Stock Issued During Period, Shares, New Issues					-93,143		-916,576
Common Stock | Convertible Preferred Stock [Member]
Shares repurchased and retired during the period (shares)						0	0
Common Stock | Class A Common Stock
Stock Issued During Period, Shares, New Issues	-12,712,279				-9,284,337		-5,520,000
Common Stock | Common Class B [Member]
Stock Issued During Period, Shares, New Issues	-26,271,120
Shares repurchased and retired during the period (shares)					3,705,453		0
Common Stock | Common Class C [Member]
Stock Issued During Period, Shares, New Issues	-28,442,643
Shares repurchased and retired during the period (shares)					4,835,767		4,152,665
Common Stock | Convertible Preferred Stock [Member]
Stock Issued During Period, Shares, New Issues	-2,565,463
Shares repurchased and retired during the period (shares)						743,117	1,367,335
Common Stock | Class A Common Stock
Stock Issued During Period, Shares, New Issues					-1,865,924
Common Stock | Common Class B [Member]
Shares repurchased and retired during the period (shares)					10,260
Common Stock | Common Class C [Member]
Shares repurchased and retired during the period (shares)					1,855,664
Common Stock | Convertible Preferred Stock [Member]
Shares repurchased and retired during the period (shares)						0
Restricted Stock [Member] | Class A Common Stock
Stock Issued During Period, Shares, New Issues					-1,444,688		-1,575,157
Restricted Stock [Member] | Common Class B [Member]
Shares repurchased and retired during the period (shares)					0		0
Restricted Stock [Member] | Common Class C [Member]
Shares repurchased and retired during the period (shares)					0		0
Restricted Stock [Member] | Convertible Preferred Stock [Member]
Shares repurchased and retired during the period (shares)						0	0
Restricted Stock Units (RSUs) [Member] | Class A Common Stock
Stock Issued During Period, Shares, New Issues					-4,728
Restricted Stock Units (RSUs) [Member] | Common Class B [Member]
Shares repurchased and retired during the period (shares)					0
Restricted Stock Units (RSUs) [Member] | Common Class C [Member]
Shares repurchased and retired during the period (shares)					0
Restricted Stock Units (RSUs) [Member] | Convertible Preferred Stock [Member]
Shares repurchased and retired during the period (shares)						0
Common Stock | Class A Common Stock
Stock Issued During Period, Shares, New Issues					-1,836,898
Common Stock | Common Class B [Member]
Shares repurchased and retired during the period (shares)					0
Common Stock | Common Class C [Member]
Shares repurchased and retired during the period (shares)					1,381,887
Common Stock | Convertible Preferred Stock [Member]
Shares repurchased and retired during the period (shares)						455,011

Compensation_and_Benefits_Comp

Compensation and Benefits - Components of expense (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Salaries, incentive compensation and benefits	$327,154	$301,621	$227,258
Restricted share compensation expense	88,256	655,417	0
Total salaries, incentive compensation and benefits	350,302	309,163	227,258
Pre-offering related compensation - share-based awards	64,664	404,160	101,682
Pre-offering related compensation - other	0	143,035	54,153
Total compensation and benefits	414,966	856,358	383,093
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share compensation expense	$23,148	$7,542	$0

Compensation_and_Benefits_Rest

Compensation and Benefits - Restricted Share Activity (Details) (Restricted Stock [Member], USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested - Weighted Average Grant Date Fair Value	$52.59	$52.36	$0
Unvested - Number of Awards	2,700,634	1,575,157	0
Granted - Weighted Average Grant Date Fair Value	$52.85
Granted - Number of Awards	1,444,688	1,575,157
Forfeited - Weighted Average Grant Date Fair Value	$0	$0
Forfeited - Number of Awards	0	0
Vested - Weighted Average Grant Date Fair Value	$52.61	$0
Vested - Number of Awards	-319,211	0

Compensation_and_Benefits_PreO

Compensation and Benefits - Pre-Offering Related Compensation (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Change in value of Class B liability awards	$0	$41,942	$101,682
Class B award modification expense	0	287,292	0
Amortization expense on pre-offering Class B awards	64,664	74,926	0
Pre-offering related compensation - share-based awards	64,664	404,160	101,682
Pre-offering related compensation - other	0	143,035	54,153
Distributions on Class B liability awards	427,200	332,000	135,000
Total pre-offering related compensation	64,664	547,195	155,835
Pre-offering related cash incentive compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-offering related compensation - other	0	56,788	0
Pre-offering related bonus make-whole compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-offering related compensation - other	0	20,520	0
Distributions on liability awards | Distributions on Class B liability awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Distributions on Class B liability awards	$0	$65,727	$54,153

Compensation_and_Benefits_Clas

Compensation and Benefits - Class B Awards Activity (Details) (Class B Liability Awards, USD $)	10 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Mar. 12, 2013
Class B Liability Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested - Weighted Average Grant Date Fair Value	$30	$30	$30
Unvested - Number of Awards	7,249,842	4,045,016	9,911,720
Granted - Weighted Average Grant Date Fair Value	$0	$0
Granted - Number of Awards	0	0
Forfeited - Weighted Average Grant Date Fair Value	($30)	$0
Forfeited - Number of Awards	-82,655	0
Vested - Weighted Average Grant Date Fair Value	($30)	($30)
Vested - Number of Awards	-2,579,223	-3,204,826

Compensation_and_Benefits_Addi

Compensation and Benefits - Additional information (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
		notification
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	14,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	10,979,885
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$16,400,000
Share-based compensation	88,256,000	655,417,000	0
Payments Related to Tax Withholding for Share-based Compensation	302,000	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Other Share Increase (Decrease)	5,880
Number of Retirement Notifications Received		3
Stock Based Awards Redemption Amount	14,284,000	23,026,000
StockBasedAwardPayment	8,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost	0	287,292,000	0
Other Labor-related Expenses	0	143,035,000	54,153,000
Distributions on Class B liability awards	427,200,000	332,000,000	135,000,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	126,200,000
Share-based compensation	23,148,000	7,542,000	0
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	4 years 1 month 27 days
Class B Liability Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	87,000,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 3 months 2 days
Redemption period for terminated employees	5 years
Retirement Qualifying Period	10 years
Notification Period Required Intent To Retire	3 years
Cumulative increase in award liability	2,500,000	7,900,000
Cash incentive compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other Labor-related Expenses	0	56,788,000	0
Pre-offering related bonus make-whole compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Other Labor-related Expenses	0	20,520,000	0
Minimum | Class B Liability Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Notification Period Required Intent To Retire	1 year
Distributions on liability awards | Class B Liability Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Distributions on Class B liability awards	$0	$65,727,000	$54,153,000

Income_Taxes_and_Related_Payme2

Income Taxes and Related Payments - Components of provision for income taxes (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	$27,094	$13,816	$0
State and local	3,982	2,719	0
Foreign	184	471	1,047
Total	31,260	17,006	1,047
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal	21,402	9,089	0
State and local	-3,833	295	0
Total	17,569	9,384	0
Income tax expense	$48,829	$26,390	$1,047

Income_Taxes_and_Related_Payme3

Income Taxes and Related Payments - Reconciliation of effective tax rate (Details)	10 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014
Income Tax Disclosure [Abstract]
U.S. Federal Statutory Rate	35.00%	35.00%
Non-deductible share-based compensation	2.60%	3.10%
Rate benefit from the flow through entity	-27.40%	-20.80%
Other	1.40%	-0.30%
Effective Tax Rate	11.60%	17.00%

Income_Taxes_and_Related_Payme4

Income Taxes and Related Payments - Components of deferred tax assets (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Deferred tax assets:
Step-up of tax basis	$551,952	[1]	$183,858
Other	10,444	[2]	4,049
Total deferred tax assets	562,396		187,907
Less: valuation allowance	0	[3]	0
Net deferred tax assets	$562,396		$187,907
[1]	Represents the unamortized step-up of tax basis from the merger described above, the purchase of common and preferred units by APAM, and the exchange of common and preferred units for Class A common shares of APAM.
[2]	Represents the net deferred tax assets associated with the merger described above and other miscellaneous deferred tax assets.
[3]	Artisan assessed whether the deferred tax assets would be realizable and determined based on its history of taxable income that the benefits would more likely than not be realized. Accordingly, no valuation allowance is required.

Income_Taxes_and_Related_Payme5

Income Taxes and Related Payments - Additional information (Details) (USD $)	0 Months Ended		9 Months Ended		12 Months Ended
	Mar. 12, 2014	Nov. 06, 2013	Dec. 31, 2014		Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Tax Disclosures [Line Items]
Deferred tax assets			$551,952,000	[1]	$551,952,000	[1]	$183,858,000
Other Tax Expense (Benefit)					-4,100,000
Net Loss On The Tax Receivable Agreements					4,187,000		0	0
Non Cash Transaction Initial Establishment of Deferred Tax Assets	287,400,000	123,900,000	99,300,000		386,700,000
Initial establishment of amounts payable under tax receivable agreements	244,300,000		84,400,000		328,700,000
Payments Of Tax Receivable Agreement					4,645,000		0	0
Approximate percentage of earnings not subject to income taxes					60.00%		78.00%
TRA percent of savings to be paid to shareholders					85.00%
IPO [Member]
Tax Disclosures [Line Items]
Non Cash Transaction Initial Establishment of Deferred Tax Assets					0		73,574,000	0
Initial establishment of amounts payable under tax receivable agreements					0		55,358,000	0
Follow On Offering [Member]
Tax Disclosures [Line Items]
Non Cash Transaction Initial Establishment of Deferred Tax Assets					392,058,000		123,888,000	0
Initial establishment of amounts payable under tax receivable agreements		$105,300,000			$328,667,000		$105,305,000	$0
[1]	Represents the unamortized step-up of tax basis from the merger described above, the purchase of common and preferred units by APAM, and the exchange of common and preferred units for Class A common shares of APAM.

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Accumulated Other Comprehensive Income (Loss) [Abstract]
Unrealized gain on investments	$326	$303
Foreign currency translation	-120	75
Accumulated Other Comprehensive Income (Loss)	$206	$378

Earnings_loss_Per_Share_Comput

Earnings (loss) Per Share - Computation of basic and diluted net income (loss) per share (Details) (USD $)	0 Months Ended	3 Months Ended								10 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Nov. 06, 2013	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Subsidiary preferred stock dividends [Line Items]
Net income (loss) attributable to APAM		$21,294	$20,439	$19,260	$8,636	$10,082	$5,977	$5,798	$2,950	$24,807	$69,629	$24,807	$0
Less: Convertible preferred stock and subsidiary equity deemed dividends	19,457									32,215	22,694	32,215
Less allocation to participating securities										1,300	29,616
Net income (loss) allocated to common shareholders										-28,165	-10,300
Weighted average shares outstanding										13,780,378	27,514,394
Earnings (loss) per share										($2.04)	($0.37)
Convertible Preferred Stock [Member]
Subsidiary preferred stock dividends [Line Items]
Less: Convertible preferred stock and subsidiary equity deemed dividends	32,215
Subsidiary Preferred Stock [Member]
Subsidiary preferred stock dividends [Line Items]
Less: Convertible preferred stock and subsidiary equity deemed dividends										$19,457	$27,619

Earnings_loss_Per_Share_Antidi

Earnings (loss) Per Share - Antidilutive securities excluded from the computation of net income per share (Details)	10 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	57,067,264	44,680,405
Holdings limited partnership units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	53,867,514	42,194,109
Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,305,018	355,228
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	894,732	2,131,068

Benefit_Plans_Details

Benefit Plans (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]
Defined Benefit Plan, Contributions by Employer	$4.90	$4.40	$3.80
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	1.2	1.5	0.6
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Liability, Current and Noncurrent	$2	$1.80

Property_and_Equipment_Details

Property and Equipment (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Total cost	$33,634,000	$27,197,000
Less: Accumulated depreciation	-17,040,000	-18,437,000
Property and equipment, net of accumulated depreciation	16,594,000	8,760,000
Depreciation expense	3,200,000	3,200,000	2,400,000
Computers and equipment
Property, Plant and Equipment [Line Items]
Total cost	5,910,000	6,259,000
Computer software
Property, Plant and Equipment [Line Items]
Total cost	4,021,000	5,356,000
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total cost	6,654,000	4,166,000
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total cost	$17,049,000	$11,416,000

Lease_Commitments_Details

Lease Commitments (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense, Net	$9,400,000	$8,400,000	$7,800,000
2015	9,642,000
2016	9,432,000
2017	8,650,000
2018	8,722,000
2019	7,180,000
Thereafter	33,633,000
Total	$77,259,000

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Artisan Funds
Related Party Transaction [Line Items]
Investment management fees	$561,202,000	$455,047,000	$333,218,000
Fee waiver / expense reimbursement	63,000	291,000	171,000
Annualized operating expenses maximum percentage of average daily net assets	1.50%
Artisan Funds | Minimum
Related Party Transaction [Line Items]
Management fee percentage of average daily net assets	0.63%
Artisan Funds | Maximum
Related Party Transaction [Line Items]
Management fee percentage of average daily net assets	1.25%
Artisan Partners High Income Fund [Member]
Related Party Transaction [Line Items]
Annualized operating expenses maximum percentage of average daily net assets	1.25%
Artisan Global Funds
Related Party Transaction [Line Items]
Due from related parties	1,300,000	2,200,000
Investment management fees	14,172,000	9,291,000	3,020,000
Fee waiver / expense reimbursement	493,000	752,000	653,000
Artisan Global Funds | Minimum
Related Party Transaction [Line Items]
Management fee percentage of average daily net assets	0.75%
Management fee threshold for reimbursement, percentage average daily net assets	0.10%
Artisan Global Funds | Maximum
Related Party Transaction [Line Items]
Management fee percentage of average daily net assets	1.80%
Management fee threshold for reimbursement, percentage average daily net assets	0.20%
Launch Equity
Related Party Transaction [Line Items]
Fee waiver / expense reimbursement	$163,000	$172,000	$141,000
Management fee as a percentage of closing capital account	1.00%
Percentage of fee expected to be waived in current period	100.00%
Percentage profit allocation	20.00%

Concentration_of_Credit_Risk_a2

Concentration of Credit Risk and Significant Relationships (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Concentration Risk [Line Items]
Total revenues	$206,016	$212,406	$208,487	$201,792	$197,593	$178,092	$161,933	$148,223	$828,701	$685,841	$505,578
Total Revenue [Member] | Geographic Concentration Risk [Member]
Concentration Risk [Line Items]
Percentage of total revenue									9.00%	9.00%	7.00%
US Mid-Cap Growth [Member]
Concentration Risk [Line Items]
Total revenues									90,683	76,327	59,841
US Mid-Cap Growth [Member] | Total Revenue [Member] | Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Percentage of total revenue									10.90%	11.10%	11.80%
US Mid-Cap Value [Member]
Concentration Risk [Line Items]
Total revenues									106,463	93,774	73,720
US Mid-Cap Value [Member] | Total Revenue [Member] | Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Percentage of total revenue									12.90%	13.70%	14.60%
Non-US Growth [Member]
Concentration Risk [Line Items]
Total revenues									156,537	116,173	86,367
Non-US Growth [Member] | Total Revenue [Member] | Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Percentage of total revenue									18.90%	16.90%	17.10%
Non-US Value [Member]
Concentration Risk [Line Items]
Total revenues									$108,837	$88,342	$54,851
Non-US Value [Member] | Total Revenue [Member] | Credit Concentration Risk [Member]
Concentration Risk [Line Items]
Percentage of total revenue									13.10%	12.90%	10.90%

Selected_Quarterly_Financial_D2

Selected Quarterly Financial Data (Unaudited) (Details) (USD $)	3 Months Ended								10 Months Ended	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Total revenues	$206,016	$212,406	$208,487	$201,792	$197,593	$178,092	$161,933	$148,223		$828,701	$685,841	$505,578
Operating income	77,910	81,016	80,825	67,152	58,366	53,360	48,384	-421,314		306,903	-261,204	47,087
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	40,146	43,243	45,547	44,149	50,505	44,614	42,442	-407,123		173,085	-269,562	33,760
Net income attributable to Artisan Partners Asset Management Inc.	$21,294	$20,439	$19,260	$8,636	$10,082	$5,977	$5,798	$2,950	$24,807	$69,629	$24,807	$0
Earnings Per Share, Basic	$0.58	$0.57	$0.42	($2.29)	($3.04)	$0.42	$0.38	$0.19
Earnings Per Share, Diluted					($3.04)	$0.35	$0.38	$0.19

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	12 Months Ended	0 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Feb. 02, 2015	Jan. 30, 2015
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Subsequent event
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted			621,000
Distribution Made to Limited Partner, Cash Distributions Declared		$79.40
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			5 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized			$29.50
Class A Common Stock | Subsequent event
Subsequent Event [Line Items]
Dividends declared per share		$1.55
Quarterly cash dividend | Class A Common Stock | Subsequent event
Subsequent Event [Line Items]
Dividends declared per share		$0.60
Special annual dividend | Class A Common Stock | Subsequent event
Subsequent Event [Line Items]
Dividends declared per share		$0.95