Artisan Partners Asset Management (APAM) 10-Q3 Nov 142014 Q3 Quarterly reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information Document	9 Months Ended
	Sep. 30, 2014	Oct. 31, 2014	Oct. 31, 2014	Oct. 31, 2014
	Sep. 30, 2014	Class A Common Stock	Class B Common Stock	Class C Common Stock
Document Information [Line Items]	'	'	'	'
Entity Common Stock, Shares Outstanding	'	34,121,560	21,463,033	17,342,950
Entity Registrant Name	'Artisan Partners Asset Management Inc.	'	'	'
Entity Central Index Key	'0001517302	'	'	'
Current Fiscal Year End Date	'--12-31	'	'	'
Entity Filer Category	'Non-accelerated Filer	'	'	'
Document Type	'10-Q	'	'	'
Document Period End Date	30-Sep-14	'	'	'
Document Fiscal Year Focus	'2014	'	'	'
Document Fiscal Period Focus	'Q3	'	'	'
Amendment Flag	'false	'	'	'

Unaudited_Consolidated_Stateme

Unaudited Consolidated Statements of Financial Condition (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
ASSETS	'	'
Cash and cash equivalents	$227,975	$211,839
Cash and cash equivalents of Launch Equity	38,600	19,156
Accounts receivable	67,546	64,110
Accounts receivable of Launch Equity	703	7,428
Investment securities	11,782	7,804
Investment securities of Launch Equity	47,428	63,364
Property and equipment, net	14,001	8,760
Deferred tax assets	563,368	187,907
Prepaid expenses and other assets	12,562	11,030
Total assets	983,965	581,398
LIABILITIES AND STOCKHOLDERS' EQUITY	'	'
Accounts payable, accrued expenses, and other	37,812	45,369
Accrued incentive compensation	77,930	3,580
Borrowings	200,000	200,000
Amounts payable under tax receivable agreements	486,535	160,663
Accounts payable of Launch Equity	2,044	7,485
Securities sold, not yet purchased of Launch Equity	33,273	31,990
Total liabilities	837,594	449,087
Commitments and Contingencies	'	'
Additional paid-in capital	78,897	6,388
Retained earnings (deficit)	13,878	1,401
Accumulated other comprehensive income (loss)	360	378
Total stockholdersb equity	93,864	43,779
Noncontrolling interest - Artisan Partners Holdings	1,094	38,060
Noncontrolling interest - Launch Equity	51,413	50,472
Total equity	146,371	132,311
Total liabilities and equity	983,965	581,398
Class A Common Stock	'	'
LIABILITIES AND STOCKHOLDERS' EQUITY	'	'
Common stock	341	198
Class B Common Stock	'	'
LIABILITIES AND STOCKHOLDERS' EQUITY	'	'
Common stock	215	253
Class C Common Stock	'	'
LIABILITIES AND STOCKHOLDERS' EQUITY	'	'
Common stock	173	252
Convertible preferred stock	'	'
LIABILITIES AND STOCKHOLDERS' EQUITY	'	'
Convertible preferred stock	$0	$34,909

Unaudited_Consolidated_Stateme1

Unaudited Consolidated Statements of Financial Condition (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
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	34,121,560	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	17,342,950	25,206,554
Convertible preferred stock	'	'
Convertible preferred stock, par value per share	$0.01	$0.01
Convertible preferred stock, shares authorized	15,000,000	15,000,000
Convertible preferred stock, shares outstanding	0	1,198,128

Unaudited_Consolidated_Stateme2

Unaudited Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues	'	'	'	'
Management Fees	$212,225	$178,092	$622,350	$488,222
Performance fees	181	0	335	26
Total revenues	212,406	178,092	622,685	488,248
Compensation and benefits	'	'	'	'
Salaries, incentive compensation and benefits	90,743	79,470	261,893	221,401
Pre-offering related compensation - share-based awards	12,431	23,441	52,234	380,523
Pre-offering related compensation - other	0	0	0	143,035
Total compensation and benefits	103,174	102,911	314,127	744,959
Distribution and marketing	13,281	10,093	36,348	27,116
Occupancy	2,811	2,609	8,265	7,781
Communication and technology	5,735	3,464	15,694	10,309
General and administrative	6,389	5,655	19,258	17,653
Total operating expenses	131,390	124,732	393,692	807,818
Total operating income (loss)	81,016	53,360	228,993	-319,570
Non-operating income (loss)	'	'	'	'
Interest expense	-2,905	-2,885	-8,690	-8,986
Net gain (loss) of Launch Equity	-557	5,499	-2,039	9,068
Net gain on the valuation of contingent value rights	0	6,940	0	40,360
Net gain (loss) on the tax receivable agreements	284	0	-4,187	0
Other non-operating income (expense)	622	0	351	0
Total non-operating income (loss)	-2,556	9,554	-14,565	40,442
Income (loss) before income taxes	78,460	62,914	214,428	-279,128
Provision for income taxes	15,335	6,824	35,193	17,146
Net income (loss) before noncontrolling interests	63,125	56,090	179,235	-296,274
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	43,243	44,614	132,939	-320,067
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	-557	5,499	-2,039	9,068
Net income attributable to Artisan Partners Asset Management Inc.	$20,439	$5,977	$48,335	$14,725
Earnings (loss) per share	'	'	'	'
Basic	$0.57	$0.42	($1.02)	'
Diluted	$0.57	$0.35	($1.02)	'
Weighted average number of common shares outstanding	'	'	'	'
Basic	30,370,892	12,728,949	26,177,724	'
Diluted	30,370,892	15,294,412	26,177,724	'
Dividends declared per Class A common share	$0.55	$0.43	$3.28	'

Unaudited_Consolidated_Stateme3

Unaudited Consolidated Statements of Comprehensive Income (Loss) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net income (loss) before noncontrolling interests	$63,125	$56,090	$179,235	($296,274)
Unrealized gain (loss) on investment securities, net of tax of ($138),$406,$18 and $453, respectively.	-423	1,004	-117	2,955
Less: reclassification adjustment for gain (loss) included in net income	405	0	405	0
Net unrealized gain (loss) on investment securities	-828	1,004	-522	2,955
Other comprehensive income (loss), net of tax	'	'	'	'
Foreign currency translation gain (loss)	-458	371	-190	53
Total other comprehensive income	-1,286	1,375	-712	3,008
Comprehensive income (loss)	61,839	57,465	178,523	-293,266
Comprehensive income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	42,401	45,250	132,245	-317,885
Comprehensive income (loss) attributable to noncontrolling interests - Launch Equity	-557	5,499	-2,039	9,068
Comprehensive income attributable to Artisan Partners Asset Management Inc.	$19,995	$6,716	$48,317	$15,551

Unaudited_Consolidated_Stateme4

Unaudited Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Securities Arising During Period, Tax	($138)	$406	$18	$453

Unaudited_Consolidated_Stateme5

Unaudited Consolidated Statements of Changes in Shareholders Equity (USD $)	Total	Common Stock	Preferred Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income	Noncontrolling Interest	Noncontrolling Interest	Redeemable Preferred Units [Member]
In Thousands	Total	Common Stock	Preferred Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income	Noncontrolling Interest	Launch Equity	Redeemable Preferred Units [Member]
Balance at beginning of period at Dec. 31, 2012	($672,715)	$0	$0	$0	$0	$0	($709,414)	$36,699	'
Net income (loss) before noncontrolling interests	-434,342	'	'	'	'	'	-434,342	'	'
Other Comprehensive Income (Loss), Net of Tax	1,065	'	'	'	'	'	1,065	'	'
Distributions	-100,514	'	'	'	'	'	-100,514	'	'
Modification of equity 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 right liability	55,440	'	'	'	'	'	55,440	'	'
Capital redemption	-16	'	'	'	'	'	-16	'	'
Balance at end of period at Mar. 12, 2013	-332,297	0	0	0	0	0	-368,996	36,699	'
Redeemable preferred units at Mar. 12, 2013	'	'	'	'	'	'	'	'	0
Net income (loss) before noncontrolling interests	138,068	'	'	'	14,725	'	114,275	9,068	'
Other Comprehensive Income (Loss), Net of Tax	2,231	'	'	'	'	383	1,848	'	'
Cumulative impact of changes in ownership of Artisan Partners Holdings, LP, net of tax	-288	'	'	-33,247	'	-219	33,178	'	'
Capital contribution	3,150	'	'	'	'	'	'	3,150	'
Amortization of equity-based compensation	55,187	'	'	12,835	'	'	42,352	'	'
Deferred Tax Assets Net Of Amounts Payable Under Tax Receivable Agreements	18,487	'	'	18,487	'	'	'	'	'
Issuance of Class A Common Stock, Net of Issuance Costs	353,414	'	'	'	'	'	353,414	'	'
Purchase of equity and subsidiary equity	0	-1	'	1	'	'	'	'	'
Distributions	-59,569	'	'	'	'	'	-59,569	'	'
Dividends	-6,124	'	'	0	-6,124	'	'	'	'
Attribution of Noncontrolling Interest	0	674	74,748	-58,365	'	662	-17,719	'	'
Capital redemption	-76,319	'	'	'	'	'	-76,319	'	'
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	0	16	'	-16	'	'	'	'	'
Balance at end of period at Sep. 30, 2013	95,940	689	74,748	-60,305	8,601	826	22,464	48,917	'
Redeemable preferred units at Sep. 30, 2013	'	'	'	'	'	'	'	'	0
Balance at beginning of period at Dec. 31, 2013	132,311	703	34,909	6,388	1,401	378	38,060	50,472	'
Net income (loss) before noncontrolling interests	179,235	'	'	'	48,335	'	132,939	-2,039	'
Other comprehensive income - foreign currency translation	-190	'	'	'	'	-105	-85	'	'
Other comprehensive income - available for sale investments, net of tax	-407	'	'	'	'	-171	-236	'	'
Other Comprehensive Income (Loss), Net of Tax	-712	'	'	'	'	'	'	'	'
Cumulative impact of changes in ownership of Artisan Partners Holdings, LP, net of tax	-115	'	'	-12,323	'	258	11,950	'	'
Capital contribution	2,980	'	'	'	'	'	'	2,980	'
Amortization of equity-based compensation	68,108	'	'	26,716	'	'	41,392	'	'
Deferred Tax Assets Net Of Amounts Payable Under Tax Receivable Agreements	61,194	'	'	61,194	'	'	'	'	'
Issuance of Class A Common Stock, Net of Issuance Costs	552,289	125	'	552,164	'	'	'	'	'
Purchase of equity and subsidiary equity	-554,430	-85	-21,652	-533,340	0	'	647	'	'
Conversion of preferred stock and exchange of subsidiary equity	0	-14	-13,257	23,289	0	0	-10,018	0	'
Distributions	-213,555	'	'	'	'	'	-213,555	'	'
Dividends	-81,049	'	'	-45,191	-35,858	'	'	'	'
Initial establishment of contingent value right liability	0	'	'	'	'	'	'	'	'
Balance at end of period at Sep. 30, 2014	$146,371	$729	$0	$78,897	$13,878	$360	$1,094	$51,413	'

Unaudited_Consolidated_Stateme6

Unaudited Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities	'	'
Net income (loss) before noncontrolling interests	$179,235	($296,274)
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	2,293	2,284
Deferred income taxes	10,863	7,255
Reinvested dividends	-213	0
Net gain on the valuation of contingent value rights	0	-40,360
Capital gain on the sale of investment securities	-405	0
Net Loss on the tax receivable agreements	4,187	0
(Gains) losses of Launch Equity, net	2,039	-9,068
Proceeds from sale of investments by Launch Equity	93,146	113,951
Purchase of investments by Launch Equity	-77,598	-108,416
Loss on disposal of property and equipment	349	6
Amortization of debt issuance costs	336	336
Share-based Compensation	68,108	627,657
Excess tax benefit on share based awards	-901	0
Change in assets and liabilities resulting in an increase (decrease) in cash:	'	'
Net change in operating assets and liabilities of Launch Equity	-18,528	-8,685
Accounts receivable	-3,436	-13,376
Prepaid expenses and other assets	-1,626	-1,592
Accounts payable and accrued expenses	73,304	71,888
Class B liability awards	-5,054	-227,793
Deferred lease obligations	16	-55
Net cash provided by operating activities	326,115	117,758
Cash flows from investing activities	'	'
Acquisition of property and equipment	-3,767	-1,466
Leasehold improvements	-4,095	-500
Proceeds from Sale of Property, Plant, and Equipment	4	0
Proceeds from the sale of investment securities	6,156	0
Purchase of Investment Securities	-10,021	-5,000
Change in Restricted Cash	260	0
Net cash used in investing activities	-11,463	-6,966
Cash flows from financing activities	'	'
Partnership distributions	-213,555	-160,098
Dividends Paid	-81,049	-6,124
Change in other liabilities	-49	-47
Repayment under revolving credit facility	0	-90,000
Payment of amounts owed under the tax receivable agreements	-4,645	0
Net proceeds from issuance of common stock	554,129	356,579
Payment of costs directly associated with the issuance of Class A common stock	-2,797	-3,165
Purchase of preferred stock and subsidiary equity	-554,129	0
Purchase of Class A common units	0	-76,319
Taxes paid related to employee net share settlement	-302	0
Capital invested into Launch Equity	2,980	3,150
Excess tax benefit on share based awards	901	0
Net cash provided by (used in) financing activities	-298,516	23,976
Net increase (decrease) in cash and cash equivalents	16,136	134,768
Cash and cash equivalents	'	'
Beginning of period	211,839	141,159
End of period	227,975	275,927
Noncash activity:	'	'
Establishment of deferred tax assets	386,324	70,862
Establishment of amounts payable under tax receivable agreements	326,048	53,449
Establishment of contingent value rights	0	55,440
Preferred Stock	'	'
Noncash activity:	'	'
Issuance of preferred stock	$0	$74,748

Organization_and_nature_of_bus

Organization and nature of business	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Organization and nature of business	'
	Note 1. Organization and nature of business
	Organization
	On March 12, 2013, Artisan Partners Asset Management Inc. (“APAM”) completed its initial public offering (the “IPO”). APAM was formed in 2011 as a subsidiary of Artisan Partners Holdings LP (“Artisan Partners Holdings” or “Holdings”). APAM was formed for the purpose of becoming the general partner of Holdings in connection with the IPO. 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.
	As part of the IPO Reorganization, APAM became the sole general partner of Holdings. 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 September 30, 2014, APAM’s total economic interest in Holdings approximated 47% of Holdings’ economics.
	Artisan Partners Asset Management has been allocated a part of Artisan Partners Holdings’ net income since March 12, 2013, when it became Artisan Partners Holdings’ general partner. APAM and its subsidiaries are hereafter referred to collectively as “Artisan” or the “Company”.

	Nature of Business
	Artisan is an investment management firm focused on providing high-value added, active investment strategies to sophisticated clients globally. Artisan’s operations are conducted through Artisan Partners Holdings and its subsidiaries.
	Artisan has six autonomous investment teams that oversee fourteen distinct U.S., non-U.S. and global investment strategies. During the first quarter of 2014 Artisan launched its fourteenth investment strategy, the Artisan Partners High Income strategy, which is managed by the firm’s Credit team.
	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.

	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 general partnership (“GP”) units of Holdings, and APAM’s ownership interest in Holdings increased from 29% to 41%. See Note 7, “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 in an underwritten public offering. 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 (the “Holdings Common Unit Exchanges”). The following exchanges have occurred during the nine months ended September 30, 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.

	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 $96.2 million and an increase in amounts payable under tax receivable agreements of approximately $81.8 million.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Policy Text Block [Abstract]	'
Significant Accounting Policies [Text Block]	'
	Note 2. Summary of Significant Accounting Policies
	Basis of presentation
	The accompanying financial statements are unaudited. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of such consolidated financial statements have been included. Such interim results are not necessarily indicative of full year results.
	The consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial reporting and accordingly they do not include all of the information and footnotes required in the annual consolidated financial statements and accompanying footnotes. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by U.S. GAAP. As a result, the interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in APAM’s latest annual report on Form 10-K.
	The accompanying financial statements were prepared in accordance with 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.
	Because APAM and Holdings were under common control at the time of the IPO 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’ equity or 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.
	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, is the general partner of Artisan Partners Launch Equity LP (“Launch Equity”), a private investment partnership that is considered a VIE. Launch Equity is considered an investment company and therefore is accounted for under ASC Topic 946, Financial Services – Investment Companies. Artisan has retained the specialized industry accounting principles of this investment company in its Consolidated Financial Statements. See Note 8, “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 of September 30, 2014, APAM does not have a controlling financial interest in any of the funds in which it has made a seed investment.

	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 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. Earlier adoption is permitted. The Company does not expect the adoption of this ASU to have an impact on its consolidated financial statements.

Investment_Securities

Investment Securities	9 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Investment securities	'
	Note 3. Investment Securities
	The disclosures below include details of Artisan’s investments. Investments held by Launch Equity are described in Note 8, “Variable and Voting Interest Entities”.


		Cost		Unrealized		Unrealized			Fair Value
				Gains		Losses
	30-Sep-14
	Mutual funds	$	10,672	$	1,128	$	(18	)	$	11,782

	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). During the nine months ended September 30, 2014, Artisan made an investment of $10.0 million in Artisan High Income Fund, a series of Artisan Partners Funds, Inc. During the three and nine months ended September 30, 2014, Artisan sold $6.2 million of its investments, resulting in a realized gain of $0.4 million. Dividends earned on mutual fund investments totaled $0.2 million for the three and nine months ended September 30, 2014.
	As of September 30, 2014, the total fair value of investments in an unrealized loss position was $5.1 million. The $18 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	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Note 4. 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 8, “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 September 30, 2014 and December 31, 2013:


		Assets and Liabilities at Fair Value
		Total		Level 1		Level 2		Level 3
	30-Sep-14
	Assets
	Cash equivalents	$	120,002	$	120,002	$	—	$	—

	Mutual funds	11,782		11,782		—		—


	31-Dec-13
	Assets
	Cash equivalents	$	105,001	$	105,001	$	—	$	—

	Equity 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 or Undertakings for Collective Investment in Transferable Securities (“UCITS”). There were no Level 2 or Level 3 assets or liabilities recorded at fair value as of September 30, 2014 and December 31, 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 three and nine months ended September 30, 2014 and 2013.

Borrowings

Borrowings	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Borrowings	'
	Note 5. Borrowings
	Artisan’s borrowings consist of the following as of September 30, 2014 and December 31, 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 $203.2 million as of September 30, 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 4, “Fair Value Measurements”.
	Interest expense incurred on the unsecured notes and revolving credit agreement was $2.8 million for the three months ended September 30, 2014 and 2013, and $8.3 million and $8.6 million for the nine months ended September 30, 2014 and 2013, respectively.
	As of September 30, 2014, the aggregate maturities of debt obligations, based on their contractual terms, are as follows:


	2014	$	—

	2015	—

	2016	—

	2017	60,000

	Thereafter	140,000

		$	200,000

Derivative_Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments	'
	Note 6. Derivative Instruments
	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. 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. The following table presents gain (loss) recognized on derivative instruments for the three and nine months ended September 30, 2014 and 2013:


			Three months ended September 30,
			2014				2013
		Income Statement Classification	Gain		Loss		Gain		Loss
	Contingent value rights	Net gain on the valuation of contingent value rights	$	—	$	—	$	6,940	$	—

	Total		$	—	$	—	$	6,940	$	—



			Nine months ended September 30,
			2014				2013
		Income Statement Classification	Gain		Loss		Gain		Loss
	Contingent value rights	Net gain on the valuation of contingent value rights	$	—	$	—	$	40,360	$	—

	Total		$	—	$	—	$	40,360	$	—

Noncontrolling_Interest_Holdin

Noncontrolling Interest - Holdings	9 Months Ended
	Sep. 30, 2014
Noncontrolling Interest [Abstract]	'
Noncontrolling interest - Artisan Partners Holdings	'
	Note 7. Noncontrolling interest - 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 September 30, 2014, APAM held approximately 47% of the economic interests in Holdings. Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings in the Unaudited 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 period prior to March 12, 2013, is entirely attributable to noncontrolling interests.
	During the nine months ended September 30, 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 1,749,353 Holdings GP units and cancellation of 1,749,353 Holdings common units, in connection with the Holdings Common Unit Exchanges.
	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 Unaudited Condensed Consolidated Statements of Financial Condition are adjusted to reallocate Holdings’ historical equity to reflect the change in APAM’s ownership of Holdings.
	As a result of the change in ownership during the nine months ended September 30, 2014, a deficit of $12.3 million was transferred to Additional paid-in capital from Noncontrolling interests - Artisan Partners Holdings. Additionally, Accumulated other comprehensive income was adjusted to reflect the change in ownership interest through a $0.4 million reduction to Noncontrolling interest and a $0.3 million increase to accumulated other comprehensive income, net of tax. The increased ownership level also resulted in a $2.8 million increase in deferred tax assets and Additional paid-in-capital. The impact of the change in APAM’s ownership interests in Holdings is reflected in the Unaudited Consolidated Statement of Changes in Stockholders’ Equity.

Variable_and_Voting_Interest_E

Variable and Voting Interest Entities	9 Months Ended
	Sep. 30, 2014
Variable Interest Entities Disclosure [Abstract]	'
Variable and voting interest entities	'
	Note 8. 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 either 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
	Artisan serves as the investment adviser for Launch Equity, a private investment partnership which seeks to achieve returns primarily through capital appreciation, while also mitigating market risk through the use of hedging strategies. Artisan has the right to receive management fees as compensation for services provided as the investment adviser. Artisan also maintains, through Artisan Partners Alternative Investments GP LLC, a direct equity investment in the fund and has the right to receive an allocation of profits based upon Launch Equity’s net capital appreciation during a fiscal year. Each of these represents a variable interest in the fund.
	The limited partners of Launch Equity are certain current Artisan employees and directors and for this purpose are considered related parties. Artisan has determined that Launch Equity is a VIE as (a) the voting rights of the limited partners are 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 involve or are conducted on behalf of the limited partners (the investors that have disproportionately few voting rights) and their related parties (including Artisan).
	Launch Equity qualifies for deferral of the current consolidation guidance for VIEs; therefore the consolidation assessment is based on previous consolidation guidance. This guidance requires 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 is 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 are 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 absorbs a majority of the variability associated with Launch Equity and Artisan is the member within the related party group that is most closely associated with the VIE. Although Artisan has only a minimal equity investment in Launch Equity, as the general partner, Artisan controls Launch Equity’s management and affairs.
	In addition, the fund was designed to attract third party investors to provide an economic benefit to Artisan in the form of quarterly management fees and an annual incentive allocation based upon the net capital appreciation of the fund. Also, in the ordinary course of business, Artisan may choose to waive certain fees, its incentive allocation or assume operating expenses of the fund. As a result, it was concluded that Artisan is 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 is limited to its equity investment of $1 thousand while the potential benefit is limited to the management and incentive fees received as investment adviser. Therefore, the gains or losses of Launch Equity have not had a significant impact on Artisan’s results of operations, liquidity or capital resources. Artisan has no right to the benefits from, nor does it bear the risks associated with, Launch Equity’s investments, beyond Artisan’s minimal direct investment in Launch Equity. If Artisan were to liquidate, the assets of Launch Equity would not be available to its general creditors and as a result, Artisan does not consider investments held by Launch Equity to be Artisan’s assets.
	The following tables reflect the impact of consolidating Launch Equity’s assets and liabilities into the Unaudited Consolidated Statement of Financial Condition as of September 30, 2014 and December 31, 2013 and results into the Unaudited Consolidated Statement of Operations for the three and nine months ended September 30, 2014 and 2013.
	Condensed Consolidating Statements of Financial Condition

		As of September 30, 2014															As of December 31, 2013
		Before				Launch Equity			Eliminations				As Reported				Before			Launch Equity			Eliminations				As Reported
		Consolidation															Consolidation
	Cash and cash equivalents	$	227,975			$	—		$	—			$	227,975			$	211,839		$	—		$	—			$	211,839

	Cash and cash equivalents of Launch Equity	—				38,600			—				38,600				—			19,156			—				19,156

	Accounts receivable	67,546				—			—				67,546				64,110			—			—				64,110

	Accounts receivable of Launch Equity	—				703			—				703				—			7,428			—				7,428

	Investment securities of Launch Equity	1				47,428			(1		)		47,428				1			63,364			(1		)		63,364

	Other assets	601,713				—			—				601,713				215,501			—			—				215,501

	Total assets	$	897,235			$	86,731		$	(1	)		$	983,965			$	491,451		$	89,948		$	(1	)		$	581,398


	Accounts payable of Launch Equity	$	—			$	2,044		$	—			$	2,044			$	—		$	7,485		$	—			$	7,485

	Securities sold, not yet purchased of Launch Equity	—				33,273			—				33,273				—			31,990			—				31,990

	Other liabilities	802,277				—			—				802,277				409,612			—			—				409,612

	Total liabilities	802,277				35,317			—				837,594				409,612			39,475			—				449,087

	Total stockholders’ equity	93,864				—			—				93,864				43,779			—			—				43,779

	Noncontrolling interest - Artisan Partners Holdings	1,094				1			(1		)		1,094				38,060			1			(1		)		38,060

	Noncontrolling interest - Launch Equity	—				51,413			—				51,413				—			50,472			—				50,472

	Total equity	94,958				51,414			(1		)		146,371				81,839			50,473			(1		)		132,311

	Total liabilities and equity	$	897,235			$	86,731		$	(1	)		$	983,965			$	491,451		$	89,948		$	(1	)		$	581,398

	Condensed Consolidating Statements of Operations

		Three Months Ended
		30-Sep-14															30-Sep-13
		Before				Launch Equity			Eliminations				As Reported				Before			Launch Equity			Eliminations				As Reported
		Consolidation															Consolidation
	Total revenues	$	212,535			$	—		$	(129	)		$	212,406			$	178,214		$	—		$	(122	)		$	178,092

	Total operating expenses	131,519				—			(129		)		131,390				124,854			—			(122		)		124,732

	Operating income (loss)	81,016				—			—				81,016				53,360			—			—				53,360

	Non-operating income (loss)	(1,999		)		—			—				(1,999		)		4,055			—			—				4,055

Net gain (loss) of Launch Equity	—				(557		)	—				(557		)		—			5,499			—				5,499

Total non-operating income (loss)	(1,999		)		(557		)	—				(2,556		)		4,055			5,499			—				9,554

Income (loss) before income taxes	79,017				(557		)	—				78,460				57,415			5,499			—				62,914

Provision for income taxes	15,335				—			—				15,335				6,824			—			—				6,824

Net income (loss)	63,682				(557		)	—				63,125				50,591			5,499			—				56,090

Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	43,243				—			—				43,243				44,614			—			—				44,614

Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	—				(557		)	—				(557		)		—			5,499			—				5,499

Net income attributable to Artisan Partners Asset Management Inc.	$	20,439			$	—		$	—			$	20,439			$	5,977		$	—		$	—			$	5,977

Condensed Consolidating Statements of Operations

	Nine Months Ended
	30-Sep-14															30-Sep-13
	Before				Launch Equity			Eliminations				As Reported				Before			Launch Equity			Eliminations				As Reported
	Consolidation															Consolidation
Total revenues	$	623,073			$	—		$	(388	)		$	622,685			$	488,583		$	—		$	(335	)		$	488,248

Total operating expenses	394,080				—			(388		)		393,692				808,153			—			(335		)		807,818

Operating income (loss)	228,993				—			—				228,993				(319,570		)	—			—				(319,570		)

Non-operating income (loss)	(12,526		)		—			—				(12,526		)		31,374			—			—				31,374

Net gain (loss) of Launch Equity	—				(2,039		)	—				(2,039		)		—			9,068			—				9,068

Total non-operating income (loss)	(12,526		)		(2,039		)	—				(14,565		)		31,374			9,068			—				40,442

Income (loss) before income taxes	216,467				(2,039		)	—				214,428				(288,196		)	9,068			—				(279,128		)

Provision for income taxes	35,193				—			—				35,193				17,146			—			—				17,146

Net income (loss)	181,274				(2,039		)	—				179,235				(305,342		)	9,068			—				(296,274		)

Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	132,939				—			—				132,939				(320,067		)	—			—				(320,067		)

Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	—				(2,039		)	—				(2,039		)		—			9,068			—				9,068

Net income attributable to Artisan Partners Asset Management Inc.	$	48,335			$	—		$	—			$	48,335			$	14,725		$	—		$	—			$	14,725

The carrying value of Launch Equity’s consolidated investments is also their fair value. Short and long positions on investment securities are valued based upon closing market prices of the security on the principal exchange on which they are traded. Investments in investment companies are 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 are valued at amortized cost, which approximates market value. The following table presents the fair value hierarchy levels of investments and liabilities held by Launch Equity which are measured at fair value as of September 30, 2014 and December 31, 2013:


	Assets and Liabilities at Fair Value:
	Total				Level 1			Level 2				Level 3
30-Sep-14
Assets
Investment securities – long position	$	47,428			$	47,428		$	—			$	—

Liabilities
Investment securities – short position	$	33,273			$	33,273		$	—			$	—


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

9 Months Ended

Sep. 30, 2014

Stockholders' Equity Note [Abstract]

Shareholder's equity

Note 9. Stockholders' Equity

APAM - Stockholders’ Equity

As of September 30, 2014 and December 31, 2013, APAM had the following authorized and outstanding equity:

Outstanding

Authorized

30-Sep-14

31-Dec-13

Voting Rights (1)

Economic Rights

Common shares

Class A, par value $0.01 per share

500,000,000

34,121,560

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

17,342,950

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 September 30, 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. During the three and nine months ended September 30, 2014, APAM paid dividends of $0.55 and $3.28, respectively, per share of outstanding Class A common stock. During the nine months ended September 30, 2014, APAM paid dividends of $3.81 per share of outstanding convertible preferred stock.

Class A Common Stock

During the nine months ended September 30, 2014, APAM issued a total of 14,314,124 shares of Class A common stock, in connection with the 2014 Follow-on Offering, H&F Conversion, Holdings Common Unit Exchanges, restricted share award grants, and the settlement of restricted stock units. APAM also granted a total of 8,670 restricted stock units with respect to Class A common stock to non-employee directors during the year-to-date period. There were 20,612 restricted stock units outstanding as of September 30, 2014.

Each Class A, Class B, Class D and Class E 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.

Class B Common Stock

In 2013, APAM issued shares of Class B common stock to employee-partners in amounts equal to the number of Class B common units those individuals held in Holdings. 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. During the nine months ended September 30, 2014, APAM canceled a total of 3,808,856 shares of Class B common stock in connection with the 2014 Follow-on Offering, Holdings Common Unit Exchanges and employee-partner terminations.

Class C Common Stock

In 2013, APAM issued shares of Class C common stock to certain investors in Holdings in amounts equal to the number of units the investors held in Holdings. During the nine months ended September 30, 2014, APAM canceled a total of 7,956,747 shares of Class C common stock in connection with the 2014 Follow-on Offering, H&F Conversion and Holdings Common Unit Exchanges. The Class C common stock cancellations were offset by the issuance of 93,143 shares in connection with employee-partner terminations.

Convertible Preferred Stock

As part of the 2014 Follow-on Offering, APAM purchased 743,117 shares of convertible preferred stock and immediately canceled the shares. As part of the H&F Conversion, the remaining 455,011 outstanding shares of convertible preferred stock were converted into 455,011 shares of Class A common stock. There were no shares of convertible preferred stock outstanding as of September 30, 2014.

Artisan Partners Holdings - Partners’ Equity

Prior to the IPO Reorganization, 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 $81.6 million and $58.5 million for the three months ended September 30, 2014 and 2013, respectively, and $329.7 million and $245.1 million for the nine months ended September 30, 2014 and 2013, 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 Unaudited Consolidated Statements of Operations and totaled $65.7 million for the nine months ended September 30, 2013. 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 $35.2 million and $12.5 million for the three months ended September 30, 2014 and 2013, respectively, and $116.1 million and $19.3 million for the nine months ended September 30, 2014 and 2013, respectively.

Compensation_and_Benefits

Compensation and Benefits	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Compensation and benefits	'
	Note 10. Compensation and Benefits
	Total compensation and benefits consists of the following:


			For the Three Months Ended September 30,							For the Nine Months Ended September 30,
			2014				2013			2014			2013
	Salaries, incentive compensation and benefits (1)		$	83,834			$	76,056		$	246,493		$	217,987

	Restricted share compensation expense		6,909				3,414			15,400			3,414

	Total salaries, incentive compensation and benefits		90,743				79,470			261,893			221,401

	Pre-offering related compensation - share-based awards		12,431				23,441			52,234			380,523

	Pre-offering related compensation - other		—				—			—			143,035

	Total compensation and benefits		$	103,174			$	102,911		$	314,127		$	744,959

	(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.
	Restricted shares
	Pursuant to the 2013 Omnibus Incentive Compensation Plan, Artisan has issued restricted shares of Class A common stock to its employees and employees of its subsidiaries. The shares generally vest on a pro rata basis over five years. Unvested shares are subject to forfeiture upon termination of employment. Grantees receiving the awards are entitled to dividends on unvested and vested shares.
	During the three months ended September 30, 2014, 1,402,876 restricted shares of Class A common stock were issued to employees of the Company and its subsidiaries. A portion of these shares will vest pro rata in the third fiscal quarter of each of the next five 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). Total compensation expense associated with the July 2014 grant is expected to be approximately $72.2 million.
	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 estimated 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 nine months ended September 30, 2014:


			Weighted-Average Grant Date Fair Value				Number of Awards
	Unvested at January 1, 2014		$	52.36			1,575,157

	Granted		$	52.85			1,444,688

	Forfeited		—				—

	Vested		$	52.61			(319,211	)

	Unvested at September 30, 2014		$	52.59			2,700,634

	Compensation expense recognized related to the restricted shares was $6.9 million and $15.4 million for the three and nine months ended September 30, 2014, respectively. The aggregate vesting date fair value of awards that vested during the nine months ended September 30, 2014 was approximately $16.4 million. The unrecognized compensation expense for the unvested restricted shares as of September 30, 2014 was $133.6 million with a weighted average recognition period of 4.4 years remaining.
	During the nine months ended September 30, 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 Three Months Ended September 30,							For the Nine Months Ended September 30,
			2014				2013			2014			2013
	Change in value of Class B liability awards		$	—			$	—		$	—		$	41,942

	Class B award modification expense		—				—			—			287,292

	Amortization expense on pre-offering Class B awards		12,431				23,441			52,234			51,289

	Pre-offering related compensation - share-based awards		12,431				23,441			52,234			380,523


	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

	Pre-offering related compensation - other		—				—			—			143,035

Total pre-offering related compensation		$	12,431			$	23,441		$	52,234		$	523,558


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. The Class B awards of partners whose services to Holdings terminated prior to the IPO will be redeemed for payments totaling $18.0 million and $23.0 million as of September 30, 2014 and December 31, 2013, respectively. Payments of $0.8 million and $5.0 million were made for the three and nine months ended September 30, 2014, respectively.
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 nine months ended September 30, 2014:


	Weighted-Average Grant Date Fair Value				Number of Class B Awards
Unvested Class B awards at January 1, 2014	$	30			7,249,842

Granted	—				—

Forfeited	—				—

Vested	$	30			(3,204,826	)

Unvested at September 30, 2014	$	30			4,045,016

The unrecognized compensation expense for the unvested Class B awards as of September 30, 2014, was $99.6 million with a weighted average recognition period of 2.4 years remaining.
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.
Pre-offering related compensation - other
During the nine months ended September 30, 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	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Income taxes and related payments	'
	Note 11. 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 are 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.
	In connection with the IPO, APAM entered into two tax receivable agreements (“TRAs”). 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 partnership 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.
	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 decreased by $0.3 million during the three months ended September 30, 2014, and increased by $4.2 million during the nine months ended September 30, 2014, due to changes in estimated future payments. The change in estimate is recorded in non-operating income in the Unaudited Consolidated Statements of Operations. The change in estimate also resulted in a discrete tax item, which increased the provision for income taxes by $0.4 million for the three months ended September 30, 2014, and reduced the provision for income taxes by $4.1 million for the nine months ended September 30, 2014.
	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 $383.6 million and $326.1 million, respectively, for the nine months ended September 30, 2014.
	As of September 30, 2014, the deferred tax asset and amounts payable under tax receivable agreements were $556.2 million and $486.5 million, respectively. During the three months ended September 30, 2014, payments of $4.6 million were made under the TRAs.
	Components of the provision for income taxes consist of the following:


			For the Three Months Ended September 30,						For the Nine Months Ended September 30,
			2014				2013		2014			2013
	Current:
	Federal		$	6,050			$	4,868	$	21,132		$	8,007

	State and local		1,106				647		3,016			1,564

	Foreign		32				100		182			320

	Total		7,188				5,615		24,330			9,891

	Deferred:
	Federal		12,025				1,131		14,971			7,027

	State and local		(3,878		)		78		(4,108		)	228

	Total		8,147				1,209		10,863			7,255

	Income tax expense		$	15,335			$	6,824	$	35,193		$	17,146

	Net deferred tax assets comprise the following:


		As of September 30, 2014				As of December 31, 2013
	Deferred tax assets:
	Amortizable basis (1)	$	556,219			$	183,858

	Other (2)	7,149				4,049

	Total deferred tax assets	563,368				187,907

	Less: valuation allowance (3)	—				—

	Net deferred tax assets	$	563,368			$	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 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 September 30, 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 September 30, 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)	9 Months Ended
	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Schedule of Accumulated Other Comprehensive Income (Loss) [Text Block]	'
	Note 12. Accumulated Other Comprehensive Income (loss)

	Accumulated other comprehensive income (loss), net of tax, in the accompanying Condensed Consolidated Statements of Financial Condition represents the portion of accumulated other comprehensive income attributable to APAM, and consists of the
	following:


		As of September 30, 2014		As of December 31, 2013
	Unrealized gain on investments	$	330	$	303

	Foreign currency translation	30		75

	Accumulated Other Comprehensive Income (Loss)	$	360	$	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_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'
	Note 13. Earnings Per Share
	Basic earnings per share is computed 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 the 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 period prior to the IPO was entirely attributable to noncontrolling interest. 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.
	As described in Note 1, “Organization and nature of business”, the consideration Artisan paid to purchase shares of its convertible preferred stock in connection with the 2014 Follow-on Offering exceeded the carrying amount of the shares of convertible preferred stock on Artisan’s consolidated balance sheet by $22.7 million, 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 resulted in a similar deemed dividend, which also reduced net income available to common stockholders. The computation of basic earnings per share under the two-class method for the periods ended September 30, 2014 and 2013 were as follows:


		For the Three Months Ended September 30, 2014			For the Three Months Ended September 30, 2013				For the Nine Months Ended September 30, 2014				For the Period from March 12, 2013 to September 30, 2013
	Basic Earnings Per Share
	Numerator:
	Net income attributable to APAM	$	20,439		$	5,977			$	48,335			$	14,725

	Less: Convertible preferred stock deemed dividends	—			—				22,694				—

	Less: Subsidiary preferred equity deemed dividends	—			—				26,469				—

	Less: Allocation to participating securities	3,246			650				25,933				2,357

	Net income (loss) available to common stockholders - Basic	$	17,193		$	5,327			$	(26,761	)		$	12,368

	Denominator:

	Weighted average shares outstanding - basic	30,370,892			12,728,949				26,177,724				12,728,949

	Earnings (loss) per share - basic	$	0.57		$	0.42			$	(1.02	)		$	0.97

	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 that will be 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.

	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:


		For the Three Months Ended September 30, 2014		For the Three Months Ended September 30, 2013			For the Nine Months Ended September 30, 2014			For the Period from March 12, 2013 to September 30, 2013
	Anti- Dilutive Weighted Average Shares Outstanding
	Holdings limited partnership units	39,767,645		54,639,188			43,349,132			54,670,972

	Convertible preferred stock	—		—			474,938			—

	Unvested restricted shares	2,582,934		1,284,095			1,939,126			584,836

	Total	42,350,579		55,923,283			45,763,196			55,255,808

	The Holdings limited partnership units are anti-dilutive primarily due to the impact of public company expenses and unrecognized share-based compensation expense. For the nine months ended September 30, 2014, shares of APAM convertible preferred stock were also anti-dilutive, primarily because dividends declared on convertible preferred stock exceeded dividends declared on Class A common stock. Unvested restricted share awards are anti-dilutive, primarily because the unvested shares are considered participating securities.
	The dilutive effect of outstanding convertible preferred stock is reflected in diluted earnings per share by application of the if-converted method. The number of incremental shares is computed using average market prices during the quarter. For year-to-date diluted earnings per share, the number of incremental shares included in the denominator is determined by computing a year-to-date weighted average of the number of incremental shares included in each quarterly diluted earnings per share computation.
	The computation of diluted earnings per share under the two-class method for the periods ended September 30, 2014 and 2013 were as follows:


		For the Three Months Ended September 30, 2014			For the Three Months Ended September 30, 2013				For the Nine Months Ended September 30, 2014				For the Period from March 12, 2013 to September 30, 2013
	Diluted Earnings Per Share
	Numerator:
	Net income attributable to APAM	$	20,439		$	5,977			$	48,335			$	14,725

	Less: Convertible preferred stock deemed dividends	—			—				22,694				—

	Less: Subsidiary preferred equity deemed dividends	—			—				26,469				—

	Less: Allocation to participating securities	3,246			650				25,933				967

	Net income (loss) available to common stockholders - diluted	$	17,193		$	5,327			$	(26,761	)		$	13,758

	Denominator:

	Weighted average shares outstanding - basic	30,370,892			12,728,949				26,177,724				12,728,949

	Effect of dilutive securities	—			2,565,463				—				2,565,463

Weighted average shares outstanding - diluted	30,370,892			15,294,412				26,177,724				15,294,412

Earnings (loss) per share - diluted	$	0.57		$	0.35			$	(1.02	)		$	0.9

Indemnifications

Indemnifications	9 Months Ended
Indemnifications	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Indemnifications	'
	Note 14. 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.

Related_Party_Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2014
Related Party Transactions [Abstract]	'
Related party transactions	'
	Note 15. 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 Three Months Ended September 30,				For the Nine Months Ended September 30,
		2014		2013		2014		2013
	Investment management fees:
	Artisan Funds	$	144,873	$	118,854	$	423,620	$	324,467

	Fee waiver / expense reimbursement:
	Artisan Funds	$	17	$	151	$	95	$	273

	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 September 30, 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 Three Months Ended September 30,				For the Nine Months Ended September 30,
		2014		2013		2014		2013
	Investment management fees:
	Artisan Global Funds	$	3,685	$	2,490	$	10,552	$	6,039

	Fee waiver / expense reimbursement:
	Artisan Global Funds	$	207	$	145	$	377	$	573


	Affiliate transactions—Launch Equity
	Artisan has an agreement to serve as the investment manager of Launch Equity. Under the terms of Artisan’s agreement with Launch Equity, Artisan earns 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 may be waived and certain expenses reimbursed to the extent they exceed a certain level. Artisan expects to waive 100% of the quarterly fee and reimburse Launch Equity for all operating expenses, and Artisan may waive other expenses as well. Artisan is 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 expects to waive, is calculated at the end of the Launch Equity’s fiscal year. Artisan waived its incentive allocation for the year ended December 31, 2013. Expense reimbursements totaled $40 thousand and $41 thousand for the three months ended September 30, 2014 and 2013, respectively, and $133 thousand and $128 thousand for the nine months ended September 30, 2014 and 2013, 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 September 30, 2014, no amounts were due from the Ziegler entities related to these transactions.

Subsequent_Events

Subsequent Events	9 Months Ended
Subsequent Events	Sep. 30, 2014
Subsequent Events [Abstract]	'
Subsequent events	'
	Note 16. Subsequent Events
	Distributions and dividends
	On October 15, 2014, the board of directors of APAM declared a distribution by Artisan Partners Holdings of $27.2 million to holders of Artisan Partners Holdings partnership units, including APAM. On the same date, the board declared a quarterly dividend of $0.55 per share of APAM’s Class A common stock. The APAM dividend is payable on November 28, 2014, to shareholders of record as of November 14, 2014.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Policy Text Block [Abstract]	'
Basis of presentation	'
	Basis of presentation
	The accompanying financial statements are unaudited. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, necessary for a fair statement of such consolidated financial statements have been included. Such interim results are not necessarily indicative of full year results.
	The consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) for interim financial reporting and accordingly they do not include all of the information and footnotes required in the annual consolidated financial statements and accompanying footnotes. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by U.S. GAAP. As a result, the interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in APAM’s latest annual report on Form 10-K.
	The accompanying financial statements were prepared in accordance with 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.
	Because APAM and Holdings were under common control at the time of the IPO 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’ equity or 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.
Principles of consolidation	'
	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, is the general partner of Artisan Partners Launch Equity LP (“Launch Equity”), a private investment partnership that is considered a VIE. Launch Equity is considered an investment company and therefore is accounted for under ASC Topic 946, Financial Services – Investment Companies. Artisan has retained the specialized industry accounting principles of this investment company in its Consolidated Financial Statements. See Note 8, “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 of September 30, 2014, APAM does not have a controlling financial interest in any of the funds in which it has made a seed investment.
Recent accounting pronouncements	'
	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 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. Earlier adoption is permitted. The Company does not expect the adoption of this ASU to have an impact on its consolidated financial statements.

Investment_Securities_Tables

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 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 8, “Variable and Voting Interest Entities”.


		Cost		Unrealized		Unrealized			Fair Value
				Gains		Losses
	30-Sep-14
	Mutual funds	$	10,672	$	1,128	$	(18	)	$	11,782

	31-Dec-13
	Mutual funds	$	6,190	$	1,614	$	—		$	7,804

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 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 September 30, 2014 and December 31, 2013:


		Assets and Liabilities at Fair Value
		Total		Level 1		Level 2		Level 3
	30-Sep-14
	Assets
	Cash equivalents	$	120,002	$	120,002	$	—	$	—

	Mutual funds	11,782		11,782		—		—


	31-Dec-13
	Assets
	Cash equivalents	$	105,001	$	105,001	$	—	$	—

	Equity mutual funds	7,804		7,804		—		—

Borrowings_Tables

Borrowings (Tables)	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Schedule of borrowings	'
	Artisan’s borrowings consist of the following as of September 30, 2014 and December 31, 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

Aggregate maturities of debt obligations	'
	As of September 30, 2014, the aggregate maturities of debt obligations, based on their contractual terms, are as follows:


	2014	$	—

	2015	—

	2016	—

	2017	60,000

	Thereafter	140,000

		$	200,000

Derivative_Instruments_Tables

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments, Gain (Loss) [Table Text Block]	'
	The following table presents gain (loss) recognized on derivative instruments for the three and nine months ended September 30, 2014 and 2013:


			Three months ended September 30,
			2014				2013
		Income Statement Classification	Gain		Loss		Gain		Loss
	Contingent value rights	Net gain on the valuation of contingent value rights	$	—	$	—	$	6,940	$	—

	Total		$	—	$	—	$	6,940	$	—



			Nine months ended September 30,
			2014				2013
		Income Statement Classification	Gain		Loss		Gain		Loss
	Contingent value rights	Net gain on the valuation of contingent value rights	$	—	$	—	$	40,360	$	—

	Total		$	—	$	—	$	40,360	$	—

Variable_and_Voting_Interest_E1

Variable and Voting Interest Entities (Tables)	9 Months Ended
	Sep. 30, 2014
Variable Interest Entities Disclosure [Abstract]	'
Condensed Consolidating Statements of Financial Condition	'
	Condensed Consolidating Statements of Financial Condition

		As of September 30, 2014												As of December 31, 2013
		Before			Launch Equity			Eliminations			As Reported			Before			Launch Equity		Eliminations			As Reported
		Consolidation												Consolidation
	Cash and cash equivalents	$	227,975		$	—		$	—		$	227,975		$	211,839		$	—	$	—		$	211,839

	Cash and cash equivalents of Launch Equity	—			38,600			—			38,600			—			19,156		—			19,156

	Accounts receivable	67,546			—			—			67,546			64,110			—		—			64,110

	Accounts receivable of Launch Equity	—			703			—			703			—			7,428		—			7,428

	Investment securities of Launch Equity	1			47,428			(1		)	47,428			1			63,364		(1		)	63,364

	Other assets	601,713			—			—			601,713			215,501			—		—			215,501

	Total assets	$	897,235		$	86,731		$	(1	)	$	983,965		$	491,451		$	89,948	$	(1	)	$	581,398


	Accounts payable of Launch Equity	$	—		$	2,044		$	—		$	2,044		$	—		$	7,485	$	—		$	7,485

	Securities sold, not yet purchased of Launch Equity	—			33,273			—			33,273			—			31,990		—			31,990

	Other liabilities	802,277			—			—			802,277			409,612			—		—			409,612

	Total liabilities	802,277			35,317			—			837,594			409,612			39,475		—			449,087

	Total stockholders’ equity	93,864			—			—			93,864			43,779			—		—			43,779

	Noncontrolling interest - Artisan Partners Holdings	1,094			1			(1		)	1,094			38,060			1		(1		)	38,060

	Noncontrolling interest - Launch Equity	—			51,413			—			51,413			—			50,472		—			50,472

	Total equity	94,958			51,414			(1		)	146,371			81,839			50,473		(1		)	132,311

	Total liabilities and equity	$	897,235		$	86,731		$	(1	)	$	983,965		$	491,451		$	89,948	$	(1	)	$	581,398

Condensed Consolidating Statements of Operations	'
	Condensed Consolidating Statements of Operations

		Three Months Ended
		30-Sep-14												30-Sep-13
		Before			Launch Equity			Eliminations			As Reported			Before			Launch Equity		Eliminations			As Reported
		Consolidation												Consolidation
	Total revenues	$	212,535		$	—		$	(129	)	$	212,406		$	178,214		$	—	$	(122	)	$	178,092

	Total operating expenses	131,519			—			(129		)	131,390			124,854			—		(122		)	124,732

	Operating income (loss)	81,016			—			—			81,016			53,360			—		—			53,360

	Non-operating income (loss)	(1,999		)	—			—			(1,999		)	4,055			—		—			4,055

	Net gain (loss) of Launch Equity	—			(557		)	—			(557		)	—			5,499		—			5,499

	Total non-operating income (loss)	(1,999		)	(557		)	—			(2,556		)	4,055			5,499		—			9,554

	Income (loss) before income taxes	79,017			(557		)	—			78,460			57,415			5,499		—			62,914

	Provision for income taxes	15,335			—			—			15,335			6,824			—		—			6,824

	Net income (loss)	63,682			(557		)	—			63,125			50,591			5,499		—			56,090

	Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	43,243			—			—			43,243			44,614			—		—			44,614

	Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	—			(557		)	—			(557		)	—			5,499		—			5,499

	Net income attributable to Artisan Partners Asset Management Inc.	$	20,439		$	—		$	—		$	20,439		$	5,977		$	—	$	—		$	5,977

	Condensed Consolidating Statements of Operations

		Nine Months Ended
		30-Sep-14												30-Sep-13
		Before			Launch Equity			Eliminations			As Reported			Before			Launch Equity		Eliminations			As Reported
		Consolidation												Consolidation
	Total revenues	$	623,073		$	—		$	(388	)	$	622,685		$	488,583		$	—	$	(335	)	$	488,248

	Total operating expenses	394,080			—			(388		)	393,692			808,153			—		(335		)	807,818

	Operating income (loss)	228,993			—			—			228,993			(319,570		)	—		—			(319,570		)

	Non-operating income (loss)	(12,526		)	—			—			(12,526		)	31,374			—		—			31,374

	Net gain (loss) of Launch Equity	—			(2,039		)	—			(2,039		)	—			9,068		—			9,068

	Total non-operating income (loss)	(12,526		)	(2,039		)	—			(14,565		)	31,374			9,068		—			40,442

	Income (loss) before income taxes	216,467			(2,039		)	—			214,428			(288,196		)	9,068		—			(279,128		)

	Provision for income taxes	35,193			—			—			35,193			17,146			—		—			17,146

	Net income (loss)	181,274			(2,039		)	—			179,235			(305,342		)	9,068		—			(296,274		)

	Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	132,939			—			—			132,939			(320,067		)	—		—			(320,067		)

	Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	—			(2,039		)	—			(2,039		)	—			9,068		—			9,068

	Net income attributable to Artisan Partners Asset Management Inc.	$	48,335		$	—		$	—		$	48,335		$	14,725		$	—	$	—		$	14,725

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 are measured at fair value as of September 30, 2014 and December 31, 2013:


		Assets and Liabilities at Fair Value:
		Total			Level 1			Level 2			Level 3
	30-Sep-14
	Assets
	Investment securities – long position	$	47,428		$	47,428		$	—		$	—

	Liabilities
	Investment securities – short position	$	33,273		$	33,273		$	—		$	—


	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)

9 Months Ended

Sep. 30, 2014

Stockholders' Equity Note [Abstract]

Authorized and outstanding equity

As of September 30, 2014 and December 31, 2013, APAM had the following authorized and outstanding equity:

Outstanding

Authorized

30-Sep-14

31-Dec-13

Voting Rights (1)

Economic Rights

Common shares

Class A, par value $0.01 per share

500,000,000

34,121,560

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

17,342,950

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

Compensation_and_Benefits_Tabl

Compensation and Benefits (Tables)	9 Months Ended
	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Components of Compensation Expense [Table Text Block]	'


			For the Three Months Ended September 30,					For the Nine Months Ended September 30,
			2014			2013		2014		2013
	Salaries, incentive compensation and benefits (1)		$	83,834		$	76,056	$	246,493	$	217,987

	Restricted share compensation expense		6,909			3,414		15,400		3,414

	Total salaries, incentive compensation and benefits		90,743			79,470		261,893		221,401

	Pre-offering related compensation - share-based awards		12,431			23,441		52,234		380,523

	Pre-offering related compensation - other		—			—		—		143,035

	Total compensation and benefits		$	103,174		$	102,911	$	314,127	$	744,959

	(1) Excluding restricted share compensation expense
Restricted Share Activity [Table Text Block]	'
	The following table summarizes the restricted share activity for the nine months ended September 30, 2014:


			Weighted-Average Grant Date Fair Value			Number of Awards
	Unvested at January 1, 2014		$	52.36		1,575,157

	Granted		$	52.85		1,444,688

	Forfeited		—			—

	Vested		$	52.61		(319,211	)

	Unvested at September 30, 2014		$	52.59		2,700,634

Pre-Offering Related Compensation [Table Text Block]	'
	Pre-offering related compensation consists of the following:


			For the Three Months Ended September 30,					For the Nine Months Ended September 30,
			2014			2013		2014		2013
	Change in value of Class B liability awards		$	—		$	—	$	—	$	41,942

	Class B award modification expense		—			—		—		287,292

	Amortization expense on pre-offering Class B awards		12,431			23,441		52,234		51,289

	Pre-offering related compensation - share-based awards		12,431			23,441		52,234		380,523


	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

	Pre-offering related compensation - other		—			—		—		143,035

	Total pre-offering related compensation		$	12,431		$	23,441	$	52,234	$	523,558

Class B Award Activity [Table Text Block]	'
	The following table summarizes the activity related to unvested Class B awards for the nine months ended September 30, 2014:


		Weighted-Average Grant Date Fair Value			Number of Class B Awards
	Unvested Class B awards at January 1, 2014	$	30		7,249,842

	Granted	—			—

	Forfeited	—			—

	Vested	$	30		(3,204,826	)

	Unvested at September 30, 2014	$	30		4,045,016

Income_Taxes_and_Related_Payme1

Income Taxes and Related Payments (Tables)	9 Months Ended
	Sep. 30, 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 Three Months Ended September 30,						For the Nine Months Ended September 30,
			2014				2013		2014			2013
	Current:
	Federal		$	6,050			$	4,868	$	21,132		$	8,007

	State and local		1,106				647		3,016			1,564

	Foreign		32				100		182			320

	Total		7,188				5,615		24,330			9,891

	Deferred:
	Federal		12,025				1,131		14,971			7,027

	State and local		(3,878		)		78		(4,108		)	228

	Total		8,147				1,209		10,863			7,255

	Income tax expense		$	15,335			$	6,824	$	35,193		$	17,146

Components of deferred tax assets	'
	Net deferred tax assets comprise the following:


		As of September 30, 2014				As of December 31, 2013
	Deferred tax assets:
	Amortizable basis (1)	$	556,219			$	183,858

	Other (2)	7,149				4,049

	Total deferred tax assets	563,368				187,907

	Less: valuation allowance (3)	—				—

	Net deferred tax assets	$	563,368			$	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 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)	9 Months Ended
	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	'
	Accumulated other comprehensive income (loss), net of tax, in the accompanying Condensed Consolidated Statements of Financial Condition represents the portion of accumulated other comprehensive income attributable to APAM, and consists of the
	following:


		As of September 30, 2014		As of December 31, 2013
	Unrealized gain on investments	$	330	$	303

	Foreign currency translation	30		75

	Accumulated Other Comprehensive Income (Loss)	$	360	$	378

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table Text Block]	'


		For the Three Months Ended September 30, 2014			For the Three Months Ended September 30, 2013			For the Nine Months Ended September 30, 2014			For the Period from March 12, 2013 to September 30, 2013
	Basic Earnings Per Share
	Numerator:
	Net income attributable to APAM	$	20,439		$	5,977		$	48,335		$	14,725

	Less: Convertible preferred stock deemed dividends	—			—			22,694			—

	Less: Subsidiary preferred equity deemed dividends	—			—			26,469			—

	Less: Allocation to participating securities	3,246			650			25,933			2,357

	Net income (loss) available to common stockholders - Basic	$	17,193		$	5,327		$	(26,761	)	$	12,368

	Denominator:

	Weighted average shares outstanding - basic	30,370,892			12,728,949			26,177,724			12,728,949

	Earnings (loss) per share - basic	$	0.57		$	0.42		$	(1.02	)	$	0.97

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	'


		For the Three Months Ended September 30, 2014		For the Three Months Ended September 30, 2013			For the Nine Months Ended September 30, 2014		For the Period from March 12, 2013 to September 30, 2013
	Anti- Dilutive Weighted Average Shares Outstanding
	Holdings limited partnership units	39,767,645		54,639,188			43,349,132		54,670,972

	Convertible preferred stock	—		—			474,938		—

	Unvested restricted shares	2,582,934		1,284,095			1,939,126		584,836

	Total	42,350,579		55,923,283			45,763,196		55,255,808

Schedule of Earnings Per Share, Diluted, By Common Class, Including Two Class Method [Table Text Block]	'


		For the Three Months Ended September 30, 2014			For the Three Months Ended September 30, 2013			For the Nine Months Ended September 30, 2014			For the Period from March 12, 2013 to September 30, 2013
	Diluted Earnings Per Share
	Numerator:
	Net income attributable to APAM	$	20,439		$	5,977		$	48,335		$	14,725

	Less: Convertible preferred stock deemed dividends	—			—			22,694			—

	Less: Subsidiary preferred equity deemed dividends	—			—			26,469			—

	Less: Allocation to participating securities	3,246			650			25,933			967

	Net income (loss) available to common stockholders - diluted	$	17,193		$	5,327		$	(26,761	)	$	13,758

	Denominator:

	Weighted average shares outstanding - basic	30,370,892			12,728,949			26,177,724			12,728,949

	Effect of dilutive securities	—			2,565,463			—			2,565,463

	Weighted average shares outstanding - diluted	30,370,892			15,294,412			26,177,724			15,294,412

	Earnings (loss) per share - diluted	$	0.57		$	0.35		$	(1.02	)	$	0.9

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 30, 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 Three Months Ended September 30,				For the Nine Months Ended September 30,
		2014		2013		2014		2013
	Investment management fees:
	Artisan Funds	$	144,873	$	118,854	$	423,620	$	324,467

	Fee waiver / expense reimbursement:
	Artisan Funds	$	17	$	151	$	95	$	273

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 Three Months Ended September 30,				For the Nine Months Ended September 30,
		2014		2013		2014		2013
	Investment management fees:
	Artisan Global Funds	$	3,685	$	2,490	$	10,552	$	6,039

	Fee waiver / expense reimbursement:
	Artisan Global Funds	$	207	$	145	$	377	$	573

Organization_and_nature_of_bus1

Organization and nature of business (Details) (USD $)

0 Months Ended

3 Months Ended

6 Months Ended

7 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

3 Months Ended

7 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

In Thousands, except Share data, unless otherwise specified

Mar. 12, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Mar. 31, 2014

Mar. 12, 2014

Dec. 31, 2013

Mar. 12, 2013

Mar. 12, 2014

Sep. 30, 2014

Jun. 16, 2014

Mar. 12, 2014

Sep. 30, 2014

Jun. 16, 2014

Mar. 12, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Jun. 16, 2014

Mar. 12, 2014

Jun. 16, 2014

Mar. 12, 2014

Sep. 30, 2014

Aug. 25, 2014

Jun. 02, 2014

Aug. 25, 2014

investment_teams

Capital Units [Member]

Class A Common Stock

Subsidiary Preferred Stock [Member]

Convertible preferred stock

General Partnership Units [Member]

Capital Unit, Class A [Member]

Capital Unit, Class B [Member]

Investment_strategies

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Number of autonomous investment teams

Number of investment strategies

Class of Stock [Line Items]

Stock Repurchased and Retired During Period, Shares

6,284,337

2,256,883

743,117

Share Price

$62

Convertible preferred stock deemed dividends

$22,694

$26,469

Stock Issued During Period, Shares, New Issues

1,836,898

455,011

9,284,337

14,314,124

1,381,887

9,284,337

1,749,353

Establishment of amounts payable under tax receivable agreements

244,300

81,800

326,048

53,449

APAM economic interest in Artisan Partners Holdings LP (as a percent)

47.00%

41.00%

29.00%

Establishment of deferred tax assets

$287,400

$96,200

$383,600

$386,324

$70,862

Conversion of Stock, Shares Converted

1,749,353

1,381,887

455,011

1,567,968

171,125

10,260

Investment_Securities_Details

Investment Securities (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	positions	Sep. 30, 2013	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]	'	'	'
Cost	$10,672,000	'	$6,190,000
Unrealized Gains	1,128,000	'	1,614,000
Unrealized Losses	-18,000	'	0
Fair Value	11,782,000	'	7,804,000
Purchase of Investment Securities	-10,021,000	-5,000,000	'
Proceeds from the sale of investment securities	6,156,000	0	'
Capital gain on the sale of investment securities	405,000	0	'
Reinvested dividends	213,000	0	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	5,100,000	'	'
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	0	'	'
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Portion Recognized in Earnings, Net, Qualitative Disclosures, Third Party Guarantees, Amount	$0	'	'

Fair_Value_Measurements_Fair_v

Fair Value Measurements - Fair value hierarchy of assets and liabilities (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	$120,002	$105,001
Mutual funds	11,782	7,804
Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Cash equivalents	120,002	105,001
Mutual funds	11,782	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

Borrowings_Components_of_Borro

Borrowings - Components of Borrowings (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
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 $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Debt Disclosure [Abstract]	'	'
2014	$0	'
2015	0	'
2016	0	'
2017	60,000	'
Thereafter	140,000	'
Borrowings	$200,000	$200,000

Borrowings_Additional_Informat

Borrowings - Additional Information (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013
Debt Instrument [Line Items]	'	'	'
Interest expense incurred on debt and credit facilities	$2.80	$8.30	$8.60
Level 2	'	'	'
Debt Instrument [Line Items]	'	'	'
Borrowings fair value	$203.20	$203.20	'

Derivative_Instruments_Income_

Derivative Instruments - Income statement disclosures (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Net gain on the valuation of contingent value rights	$0	$6,940	$0	$40,360

Noncontrolling_Interest_Holdin1

Noncontrolling Interest - Holdings (Details) (USD $)

7 Months Ended

9 Months Ended

7 Months Ended

9 Months Ended

7 Months Ended

9 Months Ended

7 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Sep. 30, 2013

Sep. 30, 2014

Mar. 31, 2014

Mar. 12, 2014

Dec. 31, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Mar. 12, 2014

Jun. 16, 2014

Mar. 12, 2014

Sep. 30, 2014

Jun. 16, 2014

Mar. 12, 2014

Sep. 30, 2014

Jun. 16, 2014

Mar. 12, 2014

Sep. 30, 2014

Jul. 15, 2014

Sep. 30, 2014

Additional Paid-in Capital

Noncontrolling Interest

Accumulated Other Comprehensive Income

Deferred Tax Assets [Member]

Preferred Stock

Class A Common Stock

General Partnership Units [Member]

Subsidiary Preferred Stock [Member]

Capital Units [Member]

Restricted Stock [Member]

Class A Common Stock

General Partnership Units [Member]

Noncontrolling Interest [Line Items]

APAM economic interest in Artisan Partners Holdings LP (as a percent)

47.00%

41.00%

29.00%

Stock Repurchased and Retired During Period, Shares

3,000,000

2,256,883

6,284,337

Stock Issued During Period, Shares, New Issues

1,836,898

455,011

9,284,337

14,314,124

1,381,887

9,284,337

1,749,353

1,402,876

1,444,688

Conversion of Stock, Shares Converted

1,381,887

1,749,353

Cumulative impact of changes in ownership of Artisan Partners Holdings, LP, net of tax

($288,000)

($115,000)

($33,247,000)

($12,323,000)

$33,178,000

$11,950,000

($219,000)

$258,000

$2,800,000

AOCI Adjustment to Reflect Changes in Ownership

$400,000

Variable_and_Voting_Interest_E2

Variable and Voting Interest Entities - Condensed Consolidating Statements of Financial Condition (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Mar. 12, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Mar. 12, 2013	Dec. 31, 2012
Cash and cash equivalents	$227,975	$211,839	$275,927	'	$141,159
Cash and cash equivalents of Launch Equity	38,600	19,156	'	'	'
Accounts receivable	67,546	64,110	'	'	'
Accounts receivable of Launch Equity	703	7,428	'	'	'
Investment securities of Launch Equity	47,428	63,364	'	'	'
Other assets	601,713	215,501	'	'	'
Total assets	983,965	581,398	'	'	'
Accounts payable of Launch Equity	2,044	7,485	'	'	'
Securities sold, not yet purchased of Launch Equity	33,273	31,990	'	'	'
Other liabilities	802,277	409,612	'	'	'
Total liabilities	837,594	449,087	'	'	'
Total stockholders' equity	93,864	43,779	'	'	'
Noncontrolling interest - Artisan Partners Holdings	1,094	38,060	'	'	'
Noncontrolling interest - Launch Equity	51,413	50,472	'	'	'
Total equity	146,371	132,311	95,940	-332,297	-672,715
Total liabilities and equity	983,965	581,398	'	'	'
Eliminations	'	'	'	'	'
Cash and cash equivalents	0	0	'	'	'
Cash and cash equivalents of Launch Equity	0	0	'	'	'
Accounts receivable	0	0	'	'	'
Accounts receivable of Launch Equity	0	0	'	'	'
Investment securities of Launch Equity	-1	-1	'	'	'
Other assets	0	0	'	'	'
Total assets	-1	-1	'	'	'
Accounts payable of Launch Equity	0	0	'	'	'
Securities sold, not yet purchased of Launch Equity	0	0	'	'	'
Other liabilities	0	0	'	'	'
Total liabilities	0	0	'	'	'
Noncontrolling interest - Artisan Partners Holdings	-1	-1	'	'	'
Noncontrolling interest - Launch Equity	0	0	'	'	'
Total equity	-1	-1	'	'	'
Total liabilities and equity	-1	-1	'	'	'
Before Consolidation	'	'	'	'	'
Parent Investment in Consolidated Variable Interest Entity	1	'	'	'	'
Cash and cash equivalents	227,975	211,839	'	'	'
Cash and cash equivalents of Launch Equity	0	0	'	'	'
Accounts receivable	67,546	64,110	'	'	'
Accounts receivable of Launch Equity	0	0	'	'	'
Investment securities of Launch Equity	1	1	'	'	'
Other assets	601,713	215,501	'	'	'
Total assets	897,235	491,451	'	'	'
Accounts payable of Launch Equity	0	0	'	'	'
Securities sold, not yet purchased of Launch Equity	0	0	'	'	'
Other liabilities	802,277	409,612	'	'	'
Total liabilities	802,277	409,612	'	'	'
Total stockholders' equity	93,864	43,779	'	'	'
Noncontrolling interest - Artisan Partners Holdings	1,094	38,060	'	'	'
Noncontrolling interest - Launch Equity	0	0	'	'	'
Total equity	94,958	81,839	'	'	'
Total liabilities and equity	897,235	491,451	'	'	'
Launch Equity	'	'	'	'	'
Cash and cash equivalents	0	0	'	'	'
Cash and cash equivalents of Launch Equity	38,600	19,156	'	'	'
Accounts receivable	0	0	'	'	'
Accounts receivable of Launch Equity	703	7,428	'	'	'
Other assets	0	0	'	'	'
Total assets	86,731	89,948	'	'	'
Accounts payable of Launch Equity	2,044	7,485	'	'	'
Other liabilities	0	0	'	'	'
Total liabilities	35,317	39,475	'	'	'
Noncontrolling interest - Artisan Partners Holdings	1	1	'	'	'
Noncontrolling interest - Launch Equity	51,413	50,472	'	'	'
Total equity	51,414	50,473	'	'	'
Total liabilities and equity	$86,731	$89,948	'	'	'

Variable_and_Voting_Interest_E3

Variable and Voting Interest Entities - Condensed Consolidating Statements of Operations (Details) (USD $)	3 Months Ended			7 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Mar. 12, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Total revenues	'	$212,406	$178,092	'	$622,685	$488,248
Total operating expenses	'	131,390	124,732	'	393,692	807,818
Operating income	'	81,016	53,360	'	228,993	-319,570
Non-operating income (loss)	'	-1,999	4,055	'	-12,526	31,374
Net gain (loss) of Launch Equity	'	-557	5,499	'	-2,039	9,068
Total non-operating income (loss)	'	-2,556	9,554	'	-14,565	40,442
Income (loss) before income taxes	'	78,460	62,914	'	214,428	-279,128
Provision for income taxes	'	15,335	6,824	'	35,193	17,146
Net income (loss)	-434,342	63,125	56,090	138,068	179,235	-296,274
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	'	43,243	44,614	'	132,939	-320,067
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	'	-557	5,499	'	-2,039	9,068
Net income attributable to Artisan Partners Asset Management Inc.	'	20,439	5,977	14,725	48,335	14,725
Eliminations	'	'	'	'	'	'
Total revenues	'	-129	-122	'	-388	-335
Total operating expenses	'	-129	-122	'	-388	-335
Operating income	'	0	0	'	0	0
Non-operating income (loss)	'	0	0	'	0	0
Net gain (loss) of Launch Equity	'	0	0	'	0	0
Total non-operating income (loss)	'	0	0	'	0	0
Income (loss) before income taxes	'	0	0	'	0	0
Provision for income taxes	'	0	0	'	0	0
Net income (loss)	'	0	0	'	0	0
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	'	0	0	'	0	0
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	'	0	0	'	0	0
Net income attributable to Artisan Partners Asset Management Inc.	'	0	0	'	0	0
Before Consolidation	'	'	'	'	'	'
Total revenues	'	212,535	178,214	'	623,073	488,583
Total operating expenses	'	131,519	124,854	'	394,080	808,153
Operating income	'	81,016	53,360	'	228,993	-319,570
Non-operating income (loss)	'	-1,999	4,055	'	-12,526	31,374
Net gain (loss) of Launch Equity	'	0	0	'	0	0
Total non-operating income (loss)	'	-1,999	4,055	'	-12,526	31,374
Income (loss) before income taxes	'	79,017	57,415	'	216,467	-288,196
Provision for income taxes	'	15,335	6,824	'	35,193	17,146
Net income (loss)	'	63,682	50,591	'	181,274	-305,342
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	'	43,243	44,614	'	132,939	-320,067
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	'	0	'	'	0	0
Net income attributable to Artisan Partners Asset Management Inc.	'	20,439	5,977	'	48,335	14,725
Launch Equity	'	'	'	'	'	'
Total revenues	'	0	0	'	0	0
Total operating expenses	'	0	0	'	0	0
Operating income	'	0	0	'	0	0
Non-operating income (loss)	'	0	0	'	0	0
Net gain (loss) of Launch Equity	'	-557	5,499	'	-2,039	9,068
Total non-operating income (loss)	'	-557	5,499	'	-2,039	9,068
Income (loss) before income taxes	'	-557	5,499	'	-2,039	9,068
Provision for income taxes	'	0	0	'	0	0
Net income (loss)	'	-557	5,499	'	-2,039	9,068
Less: Net income (loss) attributable to noncontrolling interests - Artisan Partners Holdings	'	0	0	'	0	0
Less: Net income (loss) attributable to noncontrolling interests - Launch Equity	'	-557	5,499	'	-2,039	9,068
Net income attributable to Artisan Partners Asset Management Inc.	'	$0	$0	'	$0	$0

Variable_and_Voting_Interest_E4

Variable and Voting Interest Entities - Fair Value Hierarchy of Assets and Liabilities of Consolidated Investment Products (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities of Launch Equity	$47,428	$63,364
Securities sold, not yet purchased of Launch Equity	33,273	31,990
Launch Equity \| Recurring \| Total Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities of Launch Equity	47,428	63,364
Securities sold, not yet purchased of Launch Equity	33,273	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	47,428	63,364
Securities sold, not yet purchased of Launch Equity	33,273	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	0
Securities sold, not yet purchased of Launch Equity	0	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	0
Securities sold, not yet purchased of Launch Equity	$0	$0

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)

3 Months Ended

7 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Jun. 16, 2014

Mar. 12, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Mar. 12, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Class B Liability Awards [Member]

Restricted Stock [Member]

Class A Common Stock

Class B Common Stock

Class C Common Stock

Convertible preferred stock

Distributions on liability awards [Member]

Artisan Partners Asset Management [Member]

votes

Class B Liability Awards [Member]

Class of Stock [Line Items]

Common stock, shares authorized

500,000,000

200,000,000

400,000,000

Common stock, shares outstanding

2,700,634

34,121,560

19,807,436

21,463,033

25,271,889

17,342,950

25,206,554

Convertible preferred stock, shares authorized

15,000,000

Convertible preferred stock, shares outstanding

1,198,128

Common stock votes per share

Common stock, par value per share

$0.01

Preferred stock votes per share

Convertible preferred stock, par value per share

$0.01

Dividends declared per Class A common share

$0.55

$0.43

$3.28

Preferred Stock, Dividends, Per Share, Cash Paid

$3.81

Stock Issued During Period, Shares, New Issues

1,836,898

455,011

9,284,337

14,314,124

93,143

Stock Issued During Period, Shares, Restricted Stock Award

8,670

Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number

20,612

Stock Repurchased and Retired During Period, Shares

3,808,856

7,956,747

743,117

Partnership distributions

$81,600,000

$58,500,000

$329,700,000

$245,100,000

$65,727,000

Partnership distributions

$35,200,000

$12,500,000

$116,100,000

$19,300,000

Compensation_and_Benefits_Comp

Compensation and Benefits - Components of expense (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Salaries, incentive compensation and benefits	$83,834	$76,056	$246,493	$217,987
Restricted share compensation expense	'	'	68,108	627,657
Total salaries, incentive compensation and benefits	90,743	79,470	261,893	221,401
Pre-offering related compensation - share-based awards	12,431	23,441	52,234	380,523
Pre-offering related compensation - other	0	0	0	143,035
Total compensation and benefits	103,174	102,911	314,127	744,959
Restricted Stock [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Restricted share compensation expense	$6,909	$3,414	$15,400	$3,414

Compensation_and_Benefits_Rest

Compensation and Benefits - Restricted Share Activity (Details) (USD $)	0 Months Ended			9 Months Ended			0 Months Ended	9 Months Ended
	Jun. 16, 2014	Jun. 16, 2014	Mar. 12, 2014	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013	Jul. 15, 2014	Sep. 30, 2014
	Class A Common Stock	Class A Common Stock	Class A Common Stock	Class A Common Stock	Restricted Stock [Member]	Restricted Stock [Member]	Restricted Stock [Member]	Restricted Stock [Member]
							Class A Common Stock	Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'	'	'	'
Unvested - Weighted Average Grant Date Fair Value	'	'	'	'	$52.59	$52.36	'	'
Unvested - Number of Awards	'	'	'	'	2,700,634	1,575,157	'	'
Granted - Weighted Average Grant Date Fair Value	'	'	'	'	$52.85	'	'	'
Granted - Weighted Average Grant Date Fair Value	1,836,898	455,011	9,284,337	14,314,124	'	'	1,402,876	1,444,688
Forfeited - Weighted Average Grant Date Fair Value	'	'	'	'	$0	'	'	'
Forfeited - Number of Awards	'	'	'	'	0	'	'	'
Vested - Weighted Average Grant Date Fair Value	'	'	'	'	$52.61	'	'	'
Vested - Number of Awards	'	'	'	'	-319,211	'	'	'

Compensation_and_Benefits_PreO

Compensation and Benefits - Pre-Offering Related Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Change in value of Class B liability awards	$0	$0	$0	$41,942
Class B Awards Modification Expense	0	0	0	287,292
Amortization expense on pre-offering Class B awards	12,431	23,441	52,234	51,289
Pre-offering related compensation - share-based awards	12,431	23,441	52,234	380,523
Pre-offering related compensation - other	0	0	0	143,035
Distributions on Class B liability awards	81,600	58,500	329,700	245,100
Total pre-offering related compensation	12,431	23,441	52,234	523,558
Cash Incentive Compensation [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Pre-offering related compensation - other	0	0	0	56,788
Bonus make-whole compensation [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Pre-offering related compensation - other	0	0	0	20,520
Distributions on liability awards [Member] \| Class B Liability Awards [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Pre-offering related compensation - other	'	'	'	65,727
Distributions on Class B liability awards	$0	$0	$0	$65,727

Compensation_and_Benefits_Clas

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

Compensation_and_Benefits_Addi

Compensation and Benefits - Additional information (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Jul. 15, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Jun. 16, 2014

Mar. 12, 2014

Sep. 30, 2014

Jul. 15, 2014

Sep. 30, 2014

Sep. 30, 2013

Restricted Stock [Member]

Class B Liability Awards [Member]

Cash Incentive Compensation [Member]

Bonus make-whole compensation [Member]

Common Class A [Member]

Distributions on liability awards [Member]

Restricted Stock [Member]

Class B Liability Awards [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

$133,600,000

$72,200,000

$99,600,000

Restricted share compensation expense

68,108,000

627,657,000

6,909,000

3,414,000

15,400,000

3,414,000

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value

16,400,000

Redemption period for terminated employees

'5 years

Stock Based Awards Redemption Amount

18,000,000

23,000,000

StockBasedAwardPayment

800,000

5,000,000

Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition

'4 years 4 months 28 days

'2 years 4 months 21 days

Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost

287,292,000

Pre-offering related compensation - other

143,035,000

56,788,000

20,520,000

65,727,000

Stock Issued During Period, Shares, New Issues

1,836,898

455,011

9,284,337

14,314,124

1,402,876

1,444,688

Share-based Compensation Arrangement by Share-based Payment Award, Other Share Increase (Decrease)

-5,880

Taxes paid related to employee net share settlement

$302,000

Income_Taxes_and_Related_Payme2

Income Taxes and Related Payments - Components of provision for income taxes (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income tax disclosures [Abstract]	'	'	'	'
Federal	$6,050	$4,868	$21,132	$8,007
State and local	1,106	647	3,016	1,564
Foreign	32	100	182	320
Total	7,188	5,615	24,330	9,891
Federal	12,025	1,131	14,971	7,027
State and local	-3,878	78	-4,108	228
Total	8,147	1,209	10,863	7,255
Income tax expense	$15,335	$6,824	$35,193	$17,146

Income_Taxes_and_Related_Payme3

Income Taxes and Related Payments - Components of deferred tax assets (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Deferred tax assets:	'		'
Amortizable basis	$556,219	[1]	$183,858	[1]
Other	7,149	[2]	4,049	[2]
Total deferred tax assets	563,368		187,907
Less: valuation allowance	0	[3]	0	[3]
Deferred tax assets	$563,368		$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 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_Payme4

Income Taxes and Related Payments - Additional information (Details) (USD $)

0 Months Ended

3 Months Ended

6 Months Ended

7 Months Ended

9 Months Ended

Mar. 12, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent

35.00%

Approximate percentage of earnings not subject to income taxes

60.00%

TRA percent of savings to be paid to shareholders

85.00%

Tax Receivable Agreement Percentage To Be Retained by Entity

15.00%

Tax Receivable Agreement Payment Period

'125

Net gain (loss) on the tax receivable agreements

($284,000)

$4,187,000

Other Tax Expense (Benefit)

400,000

-4,100,000

Establishment of deferred tax assets

287,400,000

96,200,000

383,600,000

386,324,000

70,862,000

Establishment of amounts payable under tax receivable agreements

244,300,000

81,800,000

326,048,000

53,449,000

Deferred tax assets

556,219,000

[1]

556,219,000

[1]

556,219,000

[1]

556,219,000

[1]

183,858,000

[1]

Amounts payable under tax receivable agreements

486,535,000

160,663,000

Payments Of Tax Receivable Agreement

$4,645,000

[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 $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'	'
Unrealized gain on investments	$330	$303
Foreign currency translation	30	75
Accumulated other comprehensive income (loss)	$360	$378

Earnings_Per_Share_Computation

Earnings Per Share - Computation of basic and diluted net income (loss) per share (Details) (USD $)	3 Months Ended		7 Months Ended	9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]	'	'	'	'	'
Net income attributable to APAM	$20,439	$5,977	$14,725	$48,335	$14,725
Less: Convertible preferred stock deemed dividends	0	0	0	22,694	'
Less: Allocation to participating securities, Basic	3,246	650	2,357	25,933	'
Net Income (Loss) Available to Common Stockholders, Basic	17,193	5,327	12,368	-26,761	'
Weighted average shares outstanding - basic	30,370,892	12,728,949	12,728,949	26,177,724	'
Earnings (loss) per share - basic	$0.57	$0.42	$0.97	($1.02)	'
Less: Allocation to participating securities, diluted	3,246	650	967	25,933	'
Net Income (Loss) Available to Common Stockholders, Diluted	17,193	5,327	13,758	-26,761	'
Weighted Average Number Diluted Shares Outstanding Adjustment	0	2,565,463	2,565,463	0	'
Weighted Average Number of Shares Outstanding, Diluted	30,370,892	15,294,412	15,294,412	26,177,724	'
Earnings Per Share, Diluted	$0.57	$0.35	$0.90	($1.02)	'
Subsidiary Preferred Stock [Member]	'	'	'	'	'
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]	'	'	'	'	'
Less: Convertible preferred stock deemed dividends	$0	$0	$0	$26,469	'

Earnings_Per_Share_Antidilutiv

Earnings Per Share - Antidilutive securities excluded from the computation of net income per share (Details)	3 Months Ended		7 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	42,350,579	55,923,283	55,255,808	45,763,196
Capital Units [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	39,767,645	54,639,188	54,670,972	43,349,132
Restricted Stock [Member]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,582,934	1,284,095	584,836	1,939,126
Convertible preferred stock	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0	0	474,938

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Artisan Funds	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Annualized operating expenses maximum percentage of average daily net assets	'	'	1.50%	'	'
Investment management fees	$144,873	$118,854	$423,620	$324,467	'
Fee waiver / expense reimbursement	17	151	95	273	'
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 [Domain]	'	'	'	'	'
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]	'	'	'	'	'
Investment management fees	3,685	2,490	10,552	6,039	'
Fee waiver / expense reimbursement	207	145	377	573	'
Due from related parties	1,300	'	1,300	'	2,200
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	40	41	133	128	'
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%	'	'
Related Party AIC [Member]	'	'	'	'	'
Related Party Transaction [Line Items]	'	'	'	'	'
Due from related parties	$0	'	$0	'	'

Subsequent_Events_Details_Deta

Subsequent Events Details (Details) (Subsequent Event [Member], USD $)	0 Months Ended
In Millions, except Per Share data, unless otherwise specified	Oct. 15, 2014
Subsequent Event [Line Items]	'
Distribution Made to Limited Partner, Cash Distributions Declared	$27.20
Quarterly Cash Dividend [Member] \| Class A Common Stock	'
Subsequent Event [Line Items]	'
Common Stock, Dividends, Per Share, Declared	$0.55