Organization and Summary of Significant Accounting Policies	3 Months Ended
Mar. 31, 2016
Accounting Policies [Abstract]
Organization and Summary of Significant Accounting Policies	Organization and Summary of Significant Accounting Policies On Deck Capital, Inc.’s principal activity is providing financing products to small businesses located throughout the United States as well as Canada and Australia, through term loans and lines of credit. We use technology and analytics to aggregate data about a business and then quickly and efficiently analyze the creditworthiness of the business using our proprietary credit-scoring model. We originate most of the loans in our portfolio and also purchase loans from issuing bank partners. We subsequently transfer most loans into one of our wholly-owned subsidiaries or sell them through OnDeck Marketplace®. Basis of Presentation and Principles of Consolidation The accompanying unaudited condensed consolidated financial statements and footnotes have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") as contained in the Financial Accounting Standards Board (‘‘FASB’’) Accounting Standards Codification (“ASC”) for interim financial information. All intercompany transactions and accounts have been eliminated in consolidation. The results of operations for the periods presented are not necessarily indicative of the results for the full year or the results for any future periods. These unaudited condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements, including the related notes, and the other information contained in our Annual Report on Form 10-K for the year ended December 31, 2015. When used in these notes to condensed 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 ("OnDeck Australia") with the remaining 45% owned by non-affiliated parties. In the third quarter of 2015, we acquired a 67% interest in Lancelot QBFOD LLC with the remaining 33% owned by Intuit Inc. ("Intuit"). We entered into the transaction involving OnDeck Australia with local partners to facilitate providing financing products to small businesses in Australia. We and Intuit jointly invested in Lancelot QBFOD LLC to provide integrated access to line of credit financing to Intuit customers utilizing Intuit's customer data. We consolidate the financial position and results of operations of OnDeck Australia and Lancelot QBFOD LLC. 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. Other than as described below in Recently Adopted Accounting Standards, during the three months ended March 31, 2016 there were no material changes to our significant accounting policies as disclosed under Part II, Item 8 of our Annual Report on Form 10-K for the year ended December 31, 2015. Reclassifications Certain reclassifications have been made to the prior period amounts to conform to the current period presentation. We reclassified gain on sales of loans, payments of net deferred origination costs of loans held for sale and proceeds from sale of loans held for sale to be included as operating activities in the consolidated statement of cash flows. Previously, such amounts were presented as a component of net income and sales of loans held for sale. 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 condensed consolidated financial statements and accompanying notes. Significant estimates include allowance for loan losses, valuation of warrants, stock-based compensation expense, servicing assets/liabilities, 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. Recently Adopted Accounting Standards In April 2015, the FASB issued Accounting Standards Update ("ASU") 2015-03, Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. The ASU simplifies the presentation of debt issuance costs by requiring that unamortized debt issuance costs be presented as a reduction of the applicable liability rather than an asset. The guidance is effective beginning on January 1, 2016 and is required to be applied retrospectively. Accordingly, $4.2 million of deferred debt issuance costs on the consolidated balance sheet at December 31, 2015 have been reclassified to be presented as a reduction of the carrying value of the associated debt to conform with the current period presentation. Recent Accounting Pronouncements Not Yet Adopted In May 2014, the FASB issued ASU 2014-09, Revenue Recognition, which creates ASC 606, Revenue from Contracts with Customers, and supersedes ASC 605, Revenue Recognition. ASU 2014-09 requires revenue to be recognized in an amount that reflects the consideration to which the entity expects to be entitled in exchange for goods or services and also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows from customer contracts. The new guidance will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early adoption is permitted, but not before the original effective date of December 15, 2016. We are currently in the process of assessing the impact that the adoption of this guidance will have on our consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases, which creates ASC 842, Leases, and supersedes ASC 840, Leases. ASU 2016-02 requires lessees to recognize a right-of-use asset and lease liability for all leases with terms of more than 12 months. Recognition, measurement and presentation of expenses will depend on classification as a finance or operating lease. The new guidance will be effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period and is applied retrospectively. Early adoption is permitted. We are currently in the process of assessing the impact the adoption of this guidance will have on our consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting. ASU 2016-09 will simplify several aspects of accounting for share-based payment award transactions which include the income tax consequences, classification of awards as either equity or liabilities, classification on the statement of cash flows and forfeiture rate calculations. The new guidance will become effective for annual periods beginning after December 15, 2016. Early adoption is permitted in any interim or annual period. We are currently evaluating the impact of this guidance on our consolidated financial statements.

Organization and Summary of Significant Accounting Policies

On Deck Capital, Inc.’s principal activity is providing financing products to small businesses located throughout the United States as well as Canada and Australia, through term loans and lines of credit. We use technology and analytics to aggregate data about a business and then quickly and efficiently analyze the creditworthiness of the business using our proprietary credit-scoring model. We originate most of the loans in our portfolio and also purchase loans from issuing bank partners. We subsequently transfer most loans into one of our wholly-owned subsidiaries or sell them through OnDeck Marketplace®.

Basis of Presentation and Principles of Consolidation

The accompanying unaudited condensed consolidated financial statements and footnotes have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") as contained in the Financial Accounting Standards Board (‘‘FASB’’) Accounting Standards Codification (“ASC”) for interim financial information. All intercompany transactions and accounts have been eliminated in consolidation. The results of operations for the periods presented are not necessarily indicative of the results for the full year or the results for any future periods. These unaudited condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements, including the related notes, and the other information contained in our Annual Report on Form 10-K for the year ended December 31, 2015. When used in these notes to condensed 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 ("OnDeck Australia") with the remaining 45% owned by non-affiliated parties. In the third quarter of 2015, we acquired a 67% interest in Lancelot QBFOD LLC with the remaining 33% owned by Intuit Inc. ("Intuit"). We entered into the transaction involving OnDeck Australia with local partners to facilitate providing financing products to small businesses in Australia. We and Intuit jointly invested in Lancelot QBFOD LLC to provide integrated access to line of credit financing to Intuit customers utilizing Intuit's customer data. We consolidate the financial position and results of operations of OnDeck Australia and Lancelot QBFOD LLC. 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.

Other than as described below in Recently Adopted Accounting Standards, during the three months ended March 31, 2016 there were no material changes to our significant accounting policies as disclosed under Part II, Item 8 of our Annual Report on Form 10-K for the year ended December 31, 2015.

Reclassifications

Certain reclassifications have been made to the prior period amounts to conform to the current period presentation. We reclassified gain on sales of loans, payments of net deferred origination costs of loans held for sale and proceeds from sale of loans held for sale to be included as operating activities in the consolidated statement of cash flows. Previously, such amounts were presented as a component of net income and sales of loans held for sale.

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 condensed consolidated financial statements and accompanying notes. Significant estimates include allowance for loan losses, valuation of warrants, stock-based compensation expense, servicing assets/liabilities, 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.

Recently Adopted Accounting Standards

In April 2015, the FASB issued Accounting Standards Update ("ASU") 2015-03, Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs. The ASU simplifies the presentation of debt issuance costs by requiring that unamortized debt issuance costs be presented as a reduction of the applicable liability rather than an asset. The guidance is effective beginning on January 1, 2016 and is required to be applied retrospectively. Accordingly, $4.2 million of deferred debt issuance costs on the consolidated balance sheet at December 31, 2015 have been reclassified to be presented as a reduction of the carrying value of the associated debt to conform with the current period presentation.

Recent Accounting Pronouncements Not Yet Adopted

In May 2014, the FASB issued ASU 2014-09, Revenue Recognition, which creates ASC 606, Revenue from Contracts with Customers, and supersedes ASC 605, Revenue Recognition. ASU 2014-09 requires revenue to be recognized in an amount that reflects the consideration to which the entity expects to be entitled in exchange for goods or services and also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows from customer contracts. The new guidance will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early adoption is permitted, but not before the original effective date of December 15, 2016. We are currently in the process of assessing the impact that the adoption of this guidance will have on our consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases, which creates ASC 842, Leases, and supersedes ASC 840, Leases. ASU 2016-02 requires lessees to recognize a right-of-use asset and lease liability for all leases with terms of more than 12 months. Recognition, measurement and presentation of expenses will depend on classification as a finance or operating lease. The new guidance will be effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period and is applied retrospectively. Early adoption is permitted. We are currently in the process of assessing the impact the adoption of this guidance will have on our consolidated financial statements.

In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting. ASU 2016-09 will simplify several aspects of accounting for share-based payment award transactions which include the income tax consequences, classification of awards as either equity or liabilities, classification on the statement of cash flows and forfeiture rate calculations. The new guidance will become effective for annual periods beginning after December 15, 2016. Early adoption is permitted in any interim or annual period. We are currently evaluating the impact of this guidance on our consolidated financial statements.