| Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Basis of Presentation The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“ US GAAP ”). The preparation of the consolidated financial statements requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates. Principles of Consolidation The consolidated financial statements include AB and its majority-owned and/or controlled subsidiaries, and the consolidated entities that are considered to be variable interest entities ( "VIEs" ) and voting interest entities ( "VOEs" ) in which AB has a controlling financial interest. Non-controlling interests on the consolidated statements of financial condition include the portion of consolidated company-sponsored investment funds in which we do not have direct equity ownership. All significant inter-company transactions and balances among the consolidated entities have been eliminated. Reclassifications During 2018, to conform to the current period's presentation, prior period amounts for: • revenues related to our middle market lending business previously presented as other revenues are now presented as investment advisory and services fees in the consolidated statements of income; • payments to financial intermediaries for administrative services, sub-accounting services and maintenance of books and records for certain funds previously presented as distribution-related payments are now presented as trade execution, marketing, T&E and other expenses in the consolidated statements of income; • research and miscellaneous fees related to our brokers dealers previously presented as other assets are now presented as other fees receivables in the consolidated statements of financial condition; and • income tax payable and receivable as well as deferred tax assets and liabilities are now shown net by jurisdiction in the consolidated statements of financial condition. Recently Adopted Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“ FASB ”) issued Accounting Standards Codification (“ ASC ”) 606, Revenue from Contracts with Customers , which outlines a single comprehensive revenue recognition model for all contracts with customers and supersedes most of the existing revenue recognition requirements. We adopted this new standard on January 1, 2018 on a modified retrospective basis for contracts that were not completed as of the date of adoption. The new standard did not change the timing of revenue recognition for our base fees, distribution revenues, shareholder servicing fees and broker-dealer revenues. However, performance-based fees, which, prior to the adoption of ASC 606, were recognized at the end of the applicable measurement period when no risk of reversal remained, and carried-interest distributions received (considered performance-based fees), recorded as deferred revenues until no risk of reversal remained, may in certain instances be recognized earlier under the new standard, if it is probable that significant reversal of performance-based fees recognized will not occur. On January 1, 2018, we recorded a cumulative effect adjustment, net of tax, of a $35.0 million increase to partners’ capital in the consolidated statement of financial condition. This amount represents carried interest distributions of $77.9 million previously received, net of revenue sharing payments to investment team members of $42.7 million , with respect to which it is probable that significant reversal will not occur. In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities . The amendment addresses certain aspects of recognition, measurement, presentation and disclosure of financial instruments. We adopted this standard on January 1, 2018. The adoption of this standard did not have a material impact on our financial condition or results of operations. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) . The amendment is intended to reduce diversity in practice in how certain transactions are classified in the statement of cash flows. We adopted this standard on January 1, 2018. The adoption of this standard did not have a material impact on our financial condition or results of operations. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash . The new standard requires that the statement of cash flows explains the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Companies are also required to reconcile such total amounts in the statement of financial condition and disclose the nature of the restrictions. We adopted this standard on January 1, 2018. The adoption of this standard did not have a material impact on our financial condition or results of operations. In March 2017, the FASB issued ASU 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost . The amendment requires that an employer disaggregate the service cost component from the other components of net benefit costs on the income statement. We adopted this standard on January 1, 2018. The adoption of this standard did not have a material impact on our financial condition or results of operations. In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation, Scope of Modification Accounting . The amendment provides clarity and reduces both diversity in practice and cost and complexity when applying the guidance in Topic 718, Compensation - Stock Compensation, to a change to the terms or conditions of a share-based payment award. We adopted this standard on January 1, 2018. The adoption of this standard did not have a material impact on our financial condition or results of operations. Accounting Pronouncements Not Yet Adopted in 2018 In February 2016, the FASB issued ASU 2016-02, Leases . This pronouncement, along with subsequent ASUs issued to clarify certain provisions of ASU 2016-02, requires lessees to record most leases on their balance sheet while also disclosing key information about those lease arrangements. The classification criteria to distinguish between finance and operating leases are generally consistent with the classification criteria to distinguish between capital and operating leases under existing lease accounting guidance. This pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2018. We adopted the new standard for our fiscal year beginning January 1, 2019, using the simplified transition method. The adoption of this standard is not expected to have a material impact on our results of operations. Our future financial statements will include additional disclosures as required by ASU 2016-02. As of January 1, 2019, we expect to record an increase in assets ranging between $430 million to $440 million and an increase in liabilities ranging between $560 million to $570 million , respectively, on our statement of financial condition as a result of recognizing right-of-use assets and lease liabilities for our lease portfolio (primarily real estate leases). The right-of-use assets recognized as of January 1, 2019 are net of deferred rent and liabilities associated with previously recognized impairments as of December 31, 2018. These estimated ranges were based on our lease portfolio as of January 1, 2019, and it did not include the potential impacts of re-measurement due to changes in our assessment of the lease term subsequent to our adoption of the standard. In June 2016, the FASB issued ASU 2016-03, Financial Instruments - Credit Losses (Topic 326) . This new guidance relates to the accounting for credit losses on financial instruments. The new guidance introduces an approach based on expected losses to estimate credit losses on certain types of financial instruments. It also modifies the impairment model for available-for-sale debt securities and provides for a simplified accounting model for purchased financial assets with credit deterioration since their origination. The new guidance is effective for financial statements issued for fiscal years ending after December 15, 2019, with early adoption permitted. Management currently is evaluating the impact that adoption of this standard will have on our consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment . The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. As a result of the revised guidance, a goodwill impairment will be the amount by which a reporting unit's carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The revised guidance will be applied prospectively, and is effective in 2020. The revised guidance is not expected to have a material impact on our financial condition or results of operations. In February 2018, the FASB issued ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which permits a company to reclassify the disproportionate income tax effects of the 2017 Tax Cuts and Job Act (" 2017 Tax Act ") on items within Accumulated Other Comprehensive Income (" AOCI ") to retained earnings. The FASB refers to these amounts as "stranded tax effects." The ASU also requires certain new disclosures, some of which are applicable for all companies. The guidance is effective for all companies for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Companies may adopt the new guidance using one of two transition methods: (1) retrospective to each period (or periods) in which the income tax effect of the 2017 Tax Act related to items remaining in AOCI are recognized, or (2) at the beginning of the period of adoption. We adopted this standard on January 1, 2019. The adoption of this standard is not expected to have a material impact on our financial condition or results of operations. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement . The amendment modifies the disclosure requirements for fair value measurements by removing, modifying, or adding certain disclosures. The revised guidance is effective for all companies for fiscal years beginning after December 15, 2019, and interim periods within those years. Companies are permitted to early adopt any eliminated or modified disclosure requirements and delay adoption of the additional disclosure requirements until their effective date. The removed and modified disclosures will be adopted on a retrospective basis and the new disclosures will be adopted on a prospective basis. The revised guidance is not expected to have a material impact on our financial condition or results of operations. In August 2018, the FASB issued ASU 2018-14, Compensation - Retirement Benefits - Defined Benefit Plans - General (Topic 715-20) . The amendment modifies the disclosure requirements for employers that sponsor defined benefit pension or other postretirement plans. The revised guidance is effective for financial statements issued for fiscal years ending after December 15, 2020, with early adoption permitted. The revised guidance is not expected to have a material impact on our financial condition or results of operations. Revenue Recognition Investment advisory and services fees AB provides asset management services by managing customer assets and seeking to deliver investment returns to investors. Each investment management contract between AB and a customer creates a distinct, separately identifiable performance obligation for each day the customer’s assets are managed as the customer can benefit from each day of service. In accordance with ASC 606, a series of distinct goods and services that are substantially the same and have the same pattern of transfer to the customer are treated as a single performance obligation. Accordingly, we have determined that our investment and advisory services are performed over time and entitle us to variable consideration earned based upon the value of the investors’ assets under management (“ AUM ”). We calculate AUM using established market-based valuation methods and fair valuation (non-observable market) methods. Market-based valuation methods include: last sale/settle prices from an exchange for actively-traded listed equities, options and futures; evaluated bid prices from recognized pricing vendors for fixed income, asset-backed or mortgage-backed issues; mid prices from recognized pricing vendors and brokers for credit default swaps; and quoted bids or spreads from pricing vendors and brokers for other derivative products. Fair valuation methods include: discounted cash flow models, evaluation of assets versus liabilities or any other methodology that is validated and approved by our Valuation Committee ( see paragraph immediately below for additional information about our Valuation Committee). Fair valuation methods are used only where AUM cannot be valued using market-based valuation methods, such as in the case of private equity or illiquid securities. The Valuation Committee, which consists of senior officers and employees, is responsible for overseeing the pricing and valuation of all investments held in client and AB portfolios. The Valuation Committee has adopted a Statement of Pricing Policies describing principles and policies that apply to pricing and valuing investments held in these portfolios. We also have a Pricing Group, which reports to the Valuation Committee and is responsible for overseeing the pricing process for all investments. We record as revenue investment advisory and services base fees, which we generally calculate as a percentage of AUM. At month-end, all the components of the transaction price ( i.e., the base fee calculation) are no longer variable and the value of the consideration is determined. These fees are not subject to claw back and there is minimal probability that a significant reversal of the revenue recorded will occur. The transaction price for the asset management performance obligation for certain investment advisory contracts, including those associated with hedge funds or other alternative investments, provide for a performance-based fee (including carried interest), in addition to a base advisory fee, which is calculated as either a percentage of absolute investment results or a percentage of investment results in excess of a stated benchmark over a specified period of time. The performance-based fees are forms of variable consideration and are therefore excluded from the transaction price until it becomes probable that there will not be significant reversal of the cumulative revenue recognized. At each reporting date, we evaluate the constraining factors, discussed below , surrounding the variable consideration to determine the extent to which, if any, revenues associated with the performance-based fee can be recognized. Constraining factors impacting the amount of variable consideration included in the transaction price include: the contractual claw-back provisions to which the variable consideration is subject, the length of time to which the uncertainty of the consideration is subject, the number and range of possible consideration amounts, the probability of significant fluctuations in the fund’s market value, the level at which the fund’s value exceeds the contractual threshold required to earn such a fee, and the materiality of the amount being evaluated. Prior to the adoption of ASC 606 on January 1, 2018, we recognized performance-based fees at the end of the applicable measurement period when no risk of reversal remained, and carried-interest distributions received as deferred revenues until no risk of reversal remained. Bernstein Research Services Bernstein Research Services revenue consists principally of commissions received for trade execution services and providing equity research services to institutional clients. Brokerage commissions for trade execution services and related expenses are recorded on a trade-date basis when the performance obligations are satisfied. Generally, the transaction price is agreed upon at the point of each trade and based upon the number of shares traded or the value of the consideration traded. Research revenues are recognized when the transaction price is quantified, collectability is assured and significant reversal of such revenue is not probable. Distribution Revenues Two of our subsidiaries act as distributors and/or placement agents of company-sponsored mutual funds and receive distribution services fees from certain of those funds as partial reimbursement of the distribution expenses they incur. Depending upon the contractual arrangements with the customer and the specific product sold, the variable consideration can be determined in different ways, as discussed below , as we satisfy the performance obligation. Most open-end U.S. funds have adopted a plan under Rule 12b-1 of the Investment Company Act that allows the fund to pay, out of assets of the fund, distribution and service fees for the distribution and sale of its shares (“ Rule 12b-1 Fees ”). The open-end U.S. funds have such agreements with us, and we have selling and distribution agreements pursuant to which we pay sales commissions to the financial intermediaries that distribute our open-end U.S. funds. These agreements are terminable by either party upon notice (generally 30 days) and do not obligate the financial intermediary to sell any specific amount of fund shares. We record 12b-1 fees monthly based upon a percentage of the net asset value (“ NAV ”) of the funds. At month-end, the variable consideration of the transaction price is no longer constrained as the NAV can be calculated and the value of consideration is determined. These services are separate and distinct from other asset management services as the customer can benefit from these services independently of other services. We accrue the corresponding 12b-1 fees paid to sub-distributors monthly as the expenses are incurred. We are acting in a principal capacity in these transactions; as such, these revenues and expenses are recorded on a gross basis. We offer back-end load shares in limited instances and charge the investor a contingent deferred sales charge (“ CDSC ”) if the investment is redeemed within a certain period. The variable consideration for these contracts is contingent upon the timing of the redemption by the investor and the value of the sale proceeds. Due to these constraining factors, we exclude the CDSC fee from the transaction price until the investor redeems the investment. Upon redemption, the cash consideration received for these contractual arrangements are recorded as reductions of unamortized deferred sales commissions. Our Luxembourg subsidiary, the management company for most of our non-U.S. funds, earns a management fee which is accrued daily and paid monthly, at an annual rate, based on the average daily net assets of the fund. With respect to certain share classes, the management fee may also contain a component that is paid to distributors and other financial intermediaries and service providers to cover shareholder servicing and other administrative expenses (also referred to as an All-in-Fee). As we have concluded that asset management is distinct from distribution, we allocate a portion of the investment and advisory fee to distribution revenues for the servicing component based on standalone selling prices. Other Revenues Revenues from contracts with customers include a portion of other revenues, which consists primarily of shareholder servicing fees, as well as mutual fund reimbursements and other brokerage income. We provide shareholder services, which include transfer agency, administrative and recordkeeping services provided to company-sponsored mutual funds. The consideration for these services is based on a percentage of the NAV of the fund or a fixed-fee based on the number of shareholder accounts being serviced. The revenues are recorded at month-end when the constraining factors involved with determining NAV or the number of shareholders’ accounts are resolved. Non-Contractual Revenues Dividend and interest income is accrued as earned. Investment gains and losses on the condensed consolidated statements of income include unrealized gains and losses of trading and private equity investments stated at fair value, equity in earnings of our limited partnership hedge fund investments, and realized gains and losses on investments sold. Contract Assets and Liabilities We use the practical expedient for contracts that have an original duration of one year or less. Accordingly, we do not consider the time value of money and, instead, accrue the incremental costs of obtaining the contract when incurred. As of December 31, 2018 , the balances of contract assets and contract liabilities are not considered material and, accordingly, no further disclosures are necessary. Consolidation of company-sponsored investment funds For legal entities (company-sponsored investment funds) evaluated for consolidation, we first determine whether the fees we receive and the interests we hold qualify as a variable interest in the entity, including an evaluation of fees paid to us as a decision maker or service provider to the entity being evaluated. Fees received by us are not variable interests if (i) the fees are compensation for services provided and are commensurate with the level of effort required to provide those services, (ii) the service arrangement includes only terms, conditions or amounts that are customarily present in arrangements for similar services negotiated at arm’s length, and (iii) our other economic interests in the entity held directly and indirectly through our related parties, as well as economic interests held by related parties under common control, would not absorb more than an insignificant amount of the entity’s losses or receive more than an insignificant amount of the entity’s benefits. For those entities in which we have a variable interest, we perform an analysis to determine whether the entity is a VIE by considering whether the entity’s equity investment at risk is insufficient, whether the investors lack decision making rights proportional to their ownership percentage of the entity, and whether the investors lack the obligation to absorb an entity’s expected losses or the right to receive an entity’s expected income. A VIE must be consolidated by its primary beneficiary, which generally is defined as the party that has a controlling financial interest in the VIE. We are deemed to have a controlling financial interest in a VIE if we have (i) the power to direct the activities of the VIE that most significantly affect the VIE's economic performance and (ii) the obligation to absorb losses of the VIE or the right to receive income from the VIE that could potentially be significant to the VIE. For purposes of evaluating (ii) above, fees paid to us as a decision maker or service provider are excluded if the amount of fees is commensurate with the level of effort required to be performed and the arrangement includes only customary terms, conditions or amounts present in arrangements for similar services negotiated at arm’s length. The primary beneficiary evaluation generally is performed qualitatively based on all facts and circumstances, as well as quantitatively, as appropriate. If we have a variable interest in an entity that is determined not to be a VIE, the entity is then evaluated for consolidation under the VOE model. For limited partnerships and similar entities, we are deemed to have a controlling financial interest in a VOE, and would be required to consolidate the entity, if we own a majority of the entity’s kick-out rights through voting limited partnership interests and limited partners do not hold substantive participating rights (or other rights that would indicate that we do not control the entity). For entities other than limited partnerships, we are deemed to have a controlling financial interest in a VOE if we own a majority voting interest in the entity. The analysis performed regarding the determination of variable interests held, whether entities are VIEs or VOEs, and whether we have a controlling financial interest in such entities requires the exercise of judgment. The analysis is updated continuously as circumstances change or new entities are formed. Cash and Cash Equivalents Cash and cash equivalents include cash on hand, demand deposits, money market accounts, overnight commercial paper and highly liquid investments with original maturities of three months or less. Due to the short-term nature of these instruments, the recorded value has been determined to approximate fair value (and considered Level 1 securities in the fair value hierarchy). During 2017, the majority of our consolidated VIEs' cash and cash equivalents is pledged as collateral for short positions in equities. Fees Receivable, Net Fees receivable are shown net of allowances. An allowance for doubtful accounts related to investment advisory and services fees is determined through an analysis of the aging of receivables, assessments of collectability based on historical trends and other qualitative and quantitative factors, including our relationship with the client, the financial health (or ability to pay) of the client, current economic conditions and whether the account is active or closed. The allowance for doubtful accounts is not material to fees receivable. Brokerage Transactions Customers’ securities transactions are recorded on a settlement date basis, with related commission income and expenses reported on a trade date basis. Receivables from and payables to clients include amounts due on cash and margin transactions. Securities owned by customers are held as collateral for receivables; such collateral is not reflected in the consolidated financial statements. We have the ability by contract or custom to sell or re-pledge this collateral, and have done so at various times. As of December 31, 2018 , there were no re-pledged securities. Principal securities transactions and related expenses are recorded on a trade date basis. Securities borrowed and securities loaned by our broker-dealer subsidiaries are recorded at the amount of cash collateral advanced or received in connection with the transaction and are included in receivables from and payables to brokers and dealers in the consolidated statements of financial condition. Securities borrowed transactions require us to deposit cash collateral with the lender. With respect to securities loaned, we receive cash collateral from the borrower. See Note 9 for securities borrowed and loaned amounts recorded in our consolidated statements of financial condition as of December 31, 2018 and 2017 . The initial collateral advanced or received approximates or is greater than the fair value of securities borrowed or loaned. We monitor the fair value of the securities borrowed and loaned on a daily basis and request additional collateral or return excess collateral, as appropriate. As of December 31, 2018 and 2017 , there is no allowance provision required for the collateral advanced. Income or expense is recognized over the life of the transaction. As of December 31, 2018 and 2017 , we had $196.9 million and $42.9 million , respectively, of cash on deposit with clearing organizations for trade facilitation purposes which are reported in other assets in our consolidated statements of financial condition. In addition, as of December 31, 2018 and 2017 , we held U.S. Treasury Bills with values totaling $392.4 million and $52.6 million , respectively, in our investment account that are pledged as collateral with clearing organizations which are reported in other investments in our consolidated statements of financial condition. These clearing organizations have the ability by contract or custom to sell or re-pledge this collateral. Furniture, Equipment and Leasehold Improvements, Net Furniture, equipment and leasehold improvements are stated at cost, less accumulated depreciation and amortization. Depreciation is recognized on a straight-line basis over the estimated useful lives of eight years for furniture and three to six years for equipment and software. Leasehold improvements are amortized on a straight-line basis over the lesser of their estimated useful lives or the terms of the related leases. Goodwill In 2000, AB acquired SCB Inc., an investment research and management company formerly known as Sanford C. Bernstein Inc. (“ Bernstein ”). The Bernstein acquisition was accounted for under the purchase method and the cost of the acquisition was allocated on the basis of the estimated fair value of the assets acquired and the liabilities assumed. The excess of the purchase price over the fair value of identifiable assets acquired, net of liabilities assumed, resulted in the recognition of goodwill of approximately $3.0 billion . As of December 31, 2018 , goodwill of $3.1 billion on the consolidated statement of financial condition included $2.8 billion as a result of the Bernstein acquisition and $266 million in regard to various smaller acquisitions. We have determined that AB has only one reporting segment and reporting unit. We test our goodwill annually, as of September 30, for impairment. As of September 30, 2018 , the impairment test indicated that goodwill was not impaired. We also review the carrying value of goodwill if facts and circumstances occur that suggest possible impairment, such as significant declines in AUM, revenues, earnings or the price of an AB Holding Unit. There were no facts or circumstances occurring in the fourth quarter of 2018 suggesting possible impairment. Intangible Assets, Net Intangible assets consist primarily of costs assigned to acquired investment management contracts of Bernstein based on their estimated fair value at the time of acquisition, less accumulated amortization. Intangible assets are recognized at fair value and generally are amortized on a straight-line basis over their estimated useful life ranging from six years to 20 years. As of December 31, 2018 , intangible assets, net of accumulated amortization, of $79.4 million on the consolidated statement of financial condition consists of $65.9 million of finite-lived intangible assets subject to amortization, of which $36.2 million relates to the Bernstein acquisition, and $13.5 million of indefinite-lived intangible assets not subject to amortization in regard to other acquisitions. As of December 31, 2017 , intangible assets, net of accumulated amortization, of $105.8 million on the consolidated statement of financial condition consisted of $92.3 million of finite-lived intangible assets subject to amortization, of which $56.9 million related to the Bernstein acquisition, and $13.5 million of indefinite-lived intangible assets not subject to amortization in regard to other acquisitions. The gross carrying amount of finite-lived intangible assets totaled $475.1 million as of December 31, 2018 and $473.7 million as of December 31, 2017 , and accumulated amortization was $409.2 million as of December 31, 2018 and $381.4 million as of December 31, 2017 . Amortization expense was $27.8 million for 2018 , $27.9 million for 2017 and $26.3 million for 2016 . Estimated annual amortization expense for 2019 is approximately $28 million , $21 million in year two, $5 million for year three, then approximately $4 million in years four and five. We periodically review indefinite-lived intangible assets for impairment as events or changes in circumstances indicate that the carrying value may not be recoverable. If the carrying value exceeds fair value, we perform additional impairment tests to measure the amount of the impairment loss, if any. Deferred Sales Commissions, Net We pay commissions to financial intermediaries in connection with the sale of shares of open-end company-sponsored mutual funds sold without a fro |
