Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Basis of Presentation and Principles of Consolidation We prepare our consolidated financial statements and footnotes in accordance with accounting principles generally accepted in the United States of America, or GAAP as contained in the Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC. All intercompany transactions and accounts have been eliminated in consolidation. Certain reclassifications have been made to the prior year amounts to conform to the current year presentation. When used in these notes to consolidated financial statements, the terms "we," "us," "our" or similar terms refers to On Deck Capital, Inc. and its consolidated subsidiaries. In the second quarter of 2015, we acquired a 55% interest in On Deck Capital Australia PTY LTD, or OnDeck Australia, with the remaining 45% owned by unrelated third parties. Additionally, in the third quarter of 2015, we acquired a 67% interest in an entity with the remaining 33% owned by an unrelated third party strategic partner for the purpose of providing small business loans to customers of the third party. We consolidate the financial position and results of operations of these entities. The noncontrolling interest, which is presented as a separate component of our consolidated equity, represents the minority owners' proportionate share of the equity of the jointly owned entities. The noncontrolling interest is adjusted for the minority owners' share of the earnings, losses, investments and distributions. Segment Reporting Operating segments are defined as components of an enterprise for which discrete financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) for purposes of allocating resources and evaluating financial performance. Based upon the way our CODM reviews financial information and makes operating decisions and considering that our CODM reviews financial information on a consolidated basis for purposes of allocating resources and evaluating financial performance, our operations constitute a single operating segment and one reportable segment. Substantially all revenue was generated and all assets were held in the United States during the years ended December 31, 2016 , 2015 and 2014 . Use of Estimates The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Significant estimates include allowance for loan losses, valuation of warrants, stock-based compensation expense, servicing assets/liabilities, loans purchased, capitalized software development costs, the useful lives of long-lived assets and valuation allowance for deferred tax assets. We base our estimates on historical experience, current events and other factors we believe to be reasonable under the circumstances. These estimates and assumptions are inherently subjective in nature; actual results may differ from these estimates and assumptions. Cash and Cash Equivalents Cash and cash equivalents include checking, savings and money market accounts. We consider all highly liquid investments with original maturities of three months or less at the time of purchase to be cash equivalents. Restricted Cash Restricted cash represents funds held in accounts as reserves on certain debt facilities and as collateral for issuing bank partner transactions. We have no ability to draw on such funds as long as they remain restricted under the applicable arrangements Loans Held for Investment and Loans Held for Sale Loans Held for Investment Loans held for investment consist of term loans and lines of credit that require daily or weekly repayments. We have both the ability and intent to hold these loans to maturity. When we originate a term loan, the borrower grants us a security interest in its assets which we may perfect by publicly filing a financing statement. Loans held for investment are carried at amortized cost, reduced by a valuation allowance for loan losses estimated as of the balance sheet dates. In accordance with ASC Subtopic 310-20, Nonrefundable Fees and Other Costs , the amortized cost of a loan is equal to the unpaid principal balance, plus net deferred origination costs. Net deferred origination costs are comprised of certain direct origination costs, net of all loan origination fees received. Loan origination fees include fees charged to the borrower related to origination that increase the loan’s effective interest yield. Loan origination costs are limited to direct costs attributable to originating a loan, including commissions and personnel costs directly related to the time spent by those individuals performing activities related to loan origination. Direct origination costs in excess of loan origination fees received are included in the loan balance and for term loans are amortized over the life of the term loan using the effective interest method, while for lines of credit principal amounts drawn are amortized using the straight-line method over 6 months. When a term loan is originated in conjunction with the extinguishment of a previously issued term loan, also known as a renewal, we determine whether such subsequent term loan is a new loan or a modification to an existing loan in accordance with ASC 310-20. If accounted for as a new loan, any remaining unamortized net deferred costs are recognized when the new loan is originated. Further, when a renewal is accounted for as a new loan, the cash flows of the origination and related net deferred origination costs of that new loan are presented as (i) operating cash outflows on the Statement of Cash Flows if the renewal is designated to be sold or (ii) as investing cash outflows if the renewal is designated to be held for investment. If a renewal is accounted for as a modification, any remaining unamortized net deferred costs are amortized over the life of the modified loan. When a renewal is accounted for as a modification, the additional cash flows associated with the origination and related net deferred origination costs of that modification are presented on the Statement of Cash Flows within the same section as the originally issued term loan prior to renewal. Purchase of Loans From time to time, we may purchase loans that we previously sold to third parties. We generally determine the price we are willing to pay for those loans through arm's-length negotiations and by using a discounted cash flow model that contains certain unobservable inputs such as discount rate, renewal rate and default rate, with adjustments that management believes a market participant would consider. We may also obtain third-party valuations of pools of loans we are considering purchasing. Upon purchase, loans are recorded at their acquisition price which represents fair value. The amortized cost of the purchased loans, which includes unpaid principal balances and any related premiums or discounts, when applicable, are included in loans held for investment on the consolidated balance sheets. Loans Held for Sale OnDeck Marketplace is our proprietary whole loan sale platform whereby we sell certain term loans to third-party institutional investors and retain the related servicing rights. We sell these whole loans to purchasers in exchange for a cash payment. A loan is initially classified as held for sale when the whole loan is identified for sale and a plan exists for the sale. A loan that is initially designated as held for sale or held for investment may be reclassified when our intent for that loan changes. When a loan held for sale is reclassified to held for investment, the loan is recorded at amortized cost and a provision for loan loss is recorded. When a loan held for investment is reclassified to held for sale, any allowance for loan loss related to that loan is released. Loans held for sale, inclusive of net deferred origination costs, are recorded at the lower of amortized cost or fair value until the loans are sold or reclassified. To determine the fair value of loans held for sale we utilize industry-standard modeling, such as discounted cash flow models, to arrive at an estimate of fair value and may utilize third-party service providers to assist in the valuation process. Servicing Rights We service loans that we have sold to third parties and upon such sale, we may recognize a servicing asset or liability, collectively referred to as servicing rights. Receiving more than adequate compensation, as defined by ASC Topic 860 Transfers and Servicing , results in the recognition of a servicing asset. Receiving less than adequate compensation results in a servicing liability. Servicing assets and liabilities are recorded at fair value and are presented as a component of other assets or accrued expenses and other liabilities, respectively. The initial recognition of a servicing asset results in a corresponding increase to gain on sales of loans. The initial recognition of a servicing liability results in a corresponding decrease to gain on sales of loans. Subsequent adjustments to the fair value of servicing rights are recognized as an adjustment to other revenue. The initial recognition includes both servicing rights resulting from transfers of financial assets and when applicable, changes in inputs or assumptions used in the valuation model. We utilize industry-standard modeling, such as discounted cash flow models, to arrive at an estimate of fair value and may utilize third-party service providers to assist in the valuation process. Significant assumptions used in valuing our servicing rights are as follows: • Adequate compensation: We estimate adequate compensation as the rate a willing market participant would require to service loans with similar characteristics as those in the serviced portfolio. In the event of a lack of transparency and quantity of transactions related to trades of servicing rights of comparable loans (i.e., loans with comparable terms, unpaid principal balances, renewal rates and default rates) we may consider the actual cost incurred as a basis for determining what a market participant would require to service the loans. • Discount rate: For servicing rights on loans, the discount rate reflects the time value of money and a risk premium intended to reflect the amount of compensation market participants would require. • Renewal rate: We estimate the timing and probability that a borrower may renew their loan in advance of scheduled repayment, thus reducing the projected unpaid principal balance and expected term of the loan, which are used to project future servicing revenues. • Default rate: We estimate the timing and probability of loan defaults and write-offs, thus reducing the projected unpaid principal balance and expected term of the loan, which are used to project future servicing revenues. Allowance for Loan Losses The allowance for loan losses (“ALLL”) is established with respect to our loans held for investment through periodic charges to the provision for loan losses. Loan losses are charged against the ALLL when we believe that the future collection of principal is unlikely. Subsequent recoveries, if any, are credited to the ALLL. We evaluate the creditworthiness of our portfolio on a pooled basis due to its composition of small, homogeneous loans with similar general credit risk characteristics and diversification among variables including industry and geography. We use a proprietary forecasted loss rate at origination for new loans that have not had the opportunity to make payments when they are first funded. The forecasted loss rate is updated daily to reflect actual loan performance and the underlying ALLL model is updated monthly to reflect our assumptions. The allowance is subjective as it requires material estimates, including such factors as historical trends, known and inherent risks in the loan portfolio, adverse situations that may affect borrowers’ ability to repay and current economic conditions. Other qualitative factors considered may include items such as uncertainties in forecasting and modeling techniques, changes in portfolio composition, business conditions and emerging trends. Recovery of the carrying value of loans is dependent to a great extent on conditions that may be beyond our control. Any combination of the aforementioned factors may adversely affect our loan portfolio resulting in increased delinquencies and loan losses and could require additional provisions for credit losses, which could impact future periods. Accrual for Unfunded Loan Commitments and Off-Balance Sheet Credit Exposures For our lines of credit we estimate probable losses on unfunded loan commitments similarly to the ALLL process and include the calculated amount in accrued expenses and other liabilities. We believe the accrual for unfunded loan commitments is sufficient to absorb estimated probable losses related to these unfunded credit commitments. The determination of the adequacy of the accrual is based on evaluations of the unfunded credit commitments, including an assessment of the probability of commitment usage, credit risk factors for lines of credit outstanding to these customers and the terms and expiration dates of the unfunded credit commitments. Accrual for Third-Party Representations We have made certain representations to third parties that purchase loans through OnDeck Marketplace . Our obligations under those representations are not secured by escrows or similar arrangements. However, if we determine it is probable that representations may be breached, we could be required to accrue certain liabilities. Any significant estimated post-sale obligations or contingent obligations to the purchaser of the loans, such as loan repurchase obligations or excess loss indemnification obligations, would be accrued if probable and estimable in accordance with ASC 450, Contingencies . There are no restricted assets related to these agreements. As of December 31, 2016 and 2015 , we have not incurred any significant losses and or material liability for probable obligations requiring accrual. Nonaccrual Loans, Restructured Loans and Charged-Off Loans We consider a loan to be delinquent when the daily or weekly payments are one day past due. We place loans on nonaccrual status and stop accruing interest income on loans that are delinquent and non-paying. Loans are returned to accrual status if they are brought to non-delinquent status or have performed in accordance with the contractual terms for a reasonable period of time and, in our judgment, will continue to make periodic principal and interest payments as scheduled. Certain borrowers who have experienced or are expected to experience financial difficulty may not be able to maintain their regularly scheduled and contractually required payments. Following discussions with us, such borrowers may temporarily make reduced payments and/or make payments on a less frequent basis than contractually required. As part of our effort to maximize loan recoverability and as a temporary accommodation to the borrower, we may voluntarily forebear from pursuing our legal rights and remedies under the applicable loan agreement, which loan agreement we do not modify and which remains in full force and effect. Generally, after the 90 th day of delinquency, we will make an initial assessment of whether an individual loan should be charged off based on payment status and information gathered through collection efforts. A loan is charged off when we determine it is probable that we will be unable to collect all of the remaining principal payments. Deferred Debt Issuance Costs and Debt We borrow from various lenders to finance our lending activities and general corporate operations. Costs incurred in connection with financings, such as banker fees, origination fees and legal fees, are classified as deferred debt issuance costs. We capitalize these costs and amortize them over the expected life of the related financing agreements. The related fees are expensed immediately upon early extinguishment of the debt. In a debt modification, the initial issuance costs and any additional fees incurred as a result of the modification are deferred over the term of the modified agreement. Deferred debt issuance costs are amortized using the effective interest method for term debt and the straight-line method for revolving lines of credit. Interest expense and the amortization of deferred debt issuance costs incurred on debt used to fund loan originations are presented as funding costs in our consolidated statements of operations. Interest expense and the amortization of deferred debt issuance costs incurred on debt used to fund general corporate operations are recorded as interest expense, a component of other expense, in our consolidated statements of operations. Deferred debt issuance costs are presented as a reduction of debt in accordance with ASU 2015-03, Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. Refer to Recently Adopted Accounting Standards for additional details. Property, Equipment and Software Property, equipment and software consists of computer and office equipment, purchased software, capitalized internal-use software costs and leasehold improvements. Property, equipment and software are carried at cost less accumulated depreciation and amortization. Depreciation and amortization expense are recognized over the estimated useful lives of the assets using the straight-line method. Leasehold improvements are amortized over the shorter of the terms of the respective leases or the estimated lives of the improvements. In accordance with ASC Subtopic 350-40, Internal-Use Software, we begin to capitalize the costs to develop software for our website and other internal uses when the following criteria are met: (i) the preliminary project stage is completed (ii) we have authorized funding (iii) it is probable that the project will be completed and (iv) we conclude that the software will perform the function intended. Capitalized internal-use software costs primarily include salaries and payroll-related costs for employees directly involved in the development efforts, software licenses acquired and fees paid to outside consultants. Software development costs incurred prior to meeting the criteria for capitalization and costs incurred for training and maintenance are expensed as incurred. Certain upgrades and enhancements to existing software that result in additional functionality are capitalized. Capitalized software development costs are amortized using the straight-line method over their expected useful lives, which is generally three years. We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying values of those assets may not be recoverable. An impairment loss will be recognized only if the carrying value of a long-lived asset is not recoverable and exceeds its fair market value. If there is an indication of impairment, we will estimate the future cash flows (undiscounted and without interest charges) expected from the use of the asset and its eventual disposition. If an impairment is determined to exist, the impairment loss will be measured as the amount by which the carrying value of the asset exceeds its fair value and recorded in the period the determination is made. Assets held for sale are reported at the lower of the carrying amount or fair value, less costs to sell. Redeemable Convertible Preferred Stock Until our initial public offering ("IPO") in December 2014, we had outstanding redeemable convertible preferred stock which was redeemable at the option of the holder after the passage of time and, therefore, had been classified outside of permanent equity in accordance with the SEC Staff Accounting Bulletin (“SAB”) Topic 3C, Redeemable Preferred Stock . We made periodic accretions to the carrying amount of the redeemable convertible preferred stock so that the carrying amount would equal the redemption. As all redeemable convertible preferred stock automatically converted into shares of common stock upon the closing of our IPO in December 2014, there was no accretion of dividends for the years ended December 31, 2016 and 2015 . As of December 31, 2016 and 2015 we had no redeemable convertible preferred stock outstanding. Stock Warrants for Shares of Preferred Stock At various dates prior to our IPO, we issued warrants for certain series of our redeemable convertible preferred stock to third parties in connection with certain agreements. As the warrant holders had the right to demand their preferred shares to be settled in cash after the passage of time, we recorded the warrants as liabilities and at each balance sheet date. We valued the warrants using the Black-Scholes-Merton Option Pricing Model. Any change in warrant value was recorded through a warrant liability fair value adjustment in our consolidated statements of operations. All warrants for shares of preferred stock automatically converted into warrants for shares of common stock upon closing of our IPO in December 2014. Upon conversion, the warrant liability was converted to permanent equity as a component of additional paid-in capital. No preferred stock or other warrants were issued during the years ended December 31, 2016 and 2015 . Revenue Recognition Interest Income We generate revenue primarily through interest and origination fees earned on loans originated and held to maturity. For term loans, we recognize interest and origination fee revenue over the terms of the underlying loans using the effective interest method. For lines of credit, we recognize interest income when earned in accordance with terms of the contract. Origination fees collected but not yet recognized as revenue are netted with direct origination costs and presented as a component of loans in our consolidated balance sheets. Historically, borrowers who elected to prepay term loans were required to pay future interest and fees that would have been assessed had the term loan been repaid in accordance with its original agreement. Beginning in December 2014, certain term loans may be eligible for a discount of future interest and fees that would have been assessed had the loan been repaid in accordance with its original agreement. Gain on Sales of Loans We account for OnDeck Marketplace loan sales in accordance with ASC Topic 860, Transfers and Servicing, which states that a transfer of a financial asset, a group of financial assets, or a participating interest in a financial asset is accounted for as a sale if all of the following conditions are met: 1. The financial assets are isolated from the transferor and its consolidated affiliates as well as its creditors. 2. The transferee or beneficial interest holders have the right to pledge or exchange the transferred financial assets. 3. The transferor does not maintain effective control of the transferred assets. For the years ended December 31, 2016 , 2015 and 2014 , all sales met the requirements for sale treatment in accordance with ASC Topic 860, Transfers and Servicing . We record the gain or loss on the sale of a loan at the sale date in an amount equal to the proceeds received, adjusted for initial recognition of servicing assets or liabilities obtained at the date of sale, less outstanding principal and net deferred origination costs. A change in inputs or assumptions used in the valuation model related to servicing assets or liabilities is recognized as a component of gain on sales of loans. Other Revenue Other revenue includes servicing fees related to loans previously sold, fair value adjustments to servicing rights, monthly fees charged to customers for our line of credit and marketing fees earned from our issuing bank partners, which are recognized as the related services are provided. Stock-Based Compensation In accordance with ASC Topic 718, Compensation—Stock Compensation , all stock-based compensation provided to employees, including stock options and restricted stock units, or RSU's, is measured based on the grant-date fair value of the awards and recognized as compensation expense on a straight-line basis over the period during which the award holder is required to perform services in exchange for the award (the vesting period). The fair value of stock options is estimated using the Black-Scholes-Merton Option Pricing Model. The use of the option valuation model requires subjective assumptions, including the fair value of our common stock, the expected term of the option and the expected stock price volatility, which is based on our stock as well as our peer companies. RSU's issued to employees and directors are measured based on the fair values of the underlying stock on the dates of grant. Additionally, the recognition of stock-based compensation expense requires an estimation of the number of options and RSUs that will ultimately be forfeited. Estimated forfeitures are subsequently adjusted to reflect actual forfeiture. Options typically vest at a rate of 25% after one year from the vesting commencement date and then monthly over an additional three -year period. The options expire ten years from the grant date or, for terminated employees, 90 days after the employee’s termination date. RSUs typically vest at a rate of 25% annually, over four annual vesting periods. Compensation expense for the fair value of the options and RSUs at their grant date is recognized ratably over the vesting period. Performance-Based Restricted Stock Units In the third quarter of 2016, the Compensation Committee of the Board of Directors approved performance-based compensation awards to certain members of executive management and other key personnel. The performance-based compensation awards consist of performance-based restricted stock units, or PRSUs, to be settled solely in shares of our common stock, as well as performance units, to be settled solely in cash. The value of the awards is based on achieving a target performance level established by the Compensation Committee and the award value may increase or decrease based on actual performance relative to the target level. The compensation expense related to the PRSUs and performance units will be recorded on a straight-line basis with the expense being adjusted prospectively as our estimate of the expected performance is reassessed each reporting period. Advertising Costs Advertising costs are expensed as incurred and are included within sales and marketing in our consolidated statements of operations. For the years ended December 31, 2016 , 2015 and 2014 , advertising costs totaled $20.1 million , $22.5 million and $14.4 million , respectively. Foreign Currency In accordance with ASC 830, Foreign Currency Matters, we have determined the functional currency of our subsidiary, OnDeck Australia, is the Australian dollar. We translate the financial statements of this subsidiary to U.S. dollars using month-end exchange rates for assets and liabilities, and average exchange rates for revenue and expenses. Translation gains and losses are recorded in accumulated other comprehensive loss as a component of stockholders' equity. As of December 31, 2016 and 2015 , we recorded a translation loss of $7,000 and $0.4 million , respectively. For the years ended December 31, 2016 and 2015 , transactions designated in currencies other than our functional currency resulted in a gain of $0.2 million and a loss of $1.3 million , respectively, and was recorded within general and administrative expenses in our consolidated statements of operations. The impact of foreign currency transactions was not material for the year ended December 31, 2014. Income Taxes In accordance with ASC 740, Income Taxes , we recognize deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial reporting and tax basis of assets and liabilities, as well as for operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the differences are expected to reverse. Valuation allowances are recorded to reduce deferred tax assets to the amount we believe is more likely than not to be realized. Uncertain tax positions are recognized only when we believe it is more likely than not that the tax position will be upheld on examination by the taxing authorities based on the merits of the position. We recognize interest and penalties, if any, related to uncertain tax positions in income tax expense. We did not have any accrued interest or penalties associated with uncertain tax positions as of December 31, 2016 and 2015 . We file income tax returns in the United States for federal, state and local jurisdictions. We are no longer subject to U.S. federal, certain states, and local income tax examinations for years prior to 2013, with certain states no longer subject for years prior to 2012, although carryforward attributes that were generated prior to 2013 may still be adjusted upon examination by the Internal Revenue Service if used in a future period. No income tax returns are currently under examination by taxing authorities. Fair Value Measurement In accordance with ASC 820, Fair Value Measurement , we use a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The hierarchy requires us to use observable inputs when available, and to minimize the use of unobservable inputs when determining fair value. The three tiers are defined as follows: Level 1: Quoted prices in active markets or liabilities in active markets for identical assets or liabilities, accessible by us at the measurement date. Level 2: Quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in markets that are not active, or other observable inputs other than quoted prices. Level 3: Unobservable inputs for assets or liabilities for which there is little or no market data, which require us to develop our own assumptions. These unobservable assumptions reflect estimates of inputs that market participants would use in pricing the asset or liability. Valuation techniques include the use of option pricing models, discounted cash flows, or similar techniques, which incorporate our own estimates of assumptions that market participants would use in pricing the instrument or valuations that require significant management judgment or estimation. A financial instrument’s categorization within the valuation hierarchy is based on the lowest level of input that is significant to the fair value measurement. Basic and Diluted Net Loss per Common Share Basic net loss per common share is computed by dividing net loss attributable to On Deck Capital, Inc. common stockholders by the weighted-average number of common shares outstanding for the period and excludes the effects of any potentially dilutive securities. We compute net loss per common share using the two-class method required for participating securities. We consider all series of redeemable convertible preferred stock to be participating securities due to their cumulative dividend rights. In accordance with the two-class method, earnings allocated to these participating securities, which include participation rights in undistributed earnings, are subtracted from net income or loss to determine total undistributed earnings or losses to be allocated to common stockholders. All participating securities are excluded from basic weighted-average common shares outstanding. Upon the closing of our IPO in December 2014, all redeemable convertible preferred stock was converted to common stock and became included in our weighted-average common shares outstanding. Diluted net loss per common share includes the dilution that would occur upon the exercise or conversion of all potentially dilutive securities into common stock using the “treasury stock” or “if converted” methods, as applicable. Diluted net loss per common share is computed under the two-class method by using the weighted-average number of common shares outstanding, plus, for periods with net income attributable to common stockholders, the potential dilutive effects of stock options, warrants and convertible preferred stock. In addition, we analy |