Summary of Significant Accounting Policies	3 Months Ended
Mar. 31, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies The Company's significant accounting policies are discussed in “Part II – Item 8 – Financial Statements and Supplementary Data – Note 2 – Summary of Significant Accounting Policies” in the Annual Report. There have been no significant changes to these significant accounting policies during the first quarter of 2016, except as noted below. Transaction Fee Revenue Transaction fees are paid by issuing banks or patient service providers to Lending Club for the work Lending Club performs through its platform and Springstone’s platform in facilitating loans for its issuing bank partners. These fees are recognized as a component of operating revenue at the time of loan issuance. Factors affecting the amount of fees paid to the issuing bank by the borrower and from the bank to the Company include initial loan amount, term, credit quality, and other factors. Commencing with the origination fee increase announced in March 2016, in the event a borrower prepays a loan in full before maturity, the Company assumes the issuing bank partner's obligation under Utah law to refund the pro-rated amount of the fee received by the bank in excess of 5%. Additionally, the Company may provide refunds to patient finance borrowers when the borrower cancels the loan under certain conditions. Since Lending Club can estimate refunds based on loan cancellation or prepayment experience, the Company records transaction fee revenue net of estimated refunds at the time of loan issuance. Restricted Cash Restricted cash consists primarily of checking, money market and certificate of deposit accounts that are: (i) pledged to or held in escrow by the Company’s correspondent banks as security for transactions processed on or related to Lending Club’s platform or activities by certain investors; (ii) pledged through a credit support agreement with a certificate holder or (iii) investors’ funds transactions-in-process that have not yet been applied to their accounts on the platform and transferred to segregated bank accounts that hold investors’ funds. Investor cash balances (excluding transactions-in-process) are held in segregated bank or custodial accounts and are not commingled with the Company’s monies or held on the Company’s balance sheet. Consolidation of Variable Interest Entities A variable interest entity (VIE) is a legal entity that does not have sufficient equity at risk to finance its own operations, whose equity holders do not have the power to direct the activities most significantly affecting the economic outcome of those activities, or whose equity holders do not share proportionately in the losses or receive the residual returns of the entity. The determination of whether an entity is a VIE requires a significant amount of judgment. When the Company has a controlling financial interest in a VIE, it must consolidate the results of the VIE’s operations into its condensed consolidated financial statements. A controlling financial interest exists if the Company has both the power to direct the VIE’s activities that most significantly affect the VIE’s economic performance (power) and the obligation to absorb losses or receive benefits that could be potentially significant to the VIE (economics). LC Trust I The Company has determined that the Trust is a VIE and that the Company has a controlling financial interest in the Trust and therefore must consolidate the Trust in its condensed consolidated financial statements. The Company established the Trust in February 2011 and funded it with a nominal residual investment. The Company is the only residual investor in the Trust. The purpose of the Trust is to acquire and hold loans for the benefit of investors who have invested in certificates issued by the Trust. The Trust conducts no other business other than purchasing and retaining loans or portions thereof for the benefit of the investment funds and their underlying limited partners. The Trust holds loans, none of which are financed by the Company. The cash flows from the loans held by the Trust are used to repay obligations under the certificates. The Trust’s assets and liabilities were reflected in the Company's consolidated financial statements at March 31, 2016 and December 31, 2015. In connection with the formation of the investment funds, it was determined that in order to achieve success in raising investment capital, the assets to be invested in by the investment funds must be held by an entity that was separate and distinct from the Company (i.e. bankruptcy remote) in order to reduce this risk and uncertainty. In the event of the Company's insolvency, it is anticipated that the assets of the Trust would not become part of the bankruptcy estate, but that outcome is uncertain. The Company's capital contributions, which are the only equity investments in the Trust, are insufficient to allow the Trust to finance the purchase of a significant amount of loans without the issuance of certificates to investors. Therefore, the Trust’s capitalization level qualifies the Trust as a VIE. The Company has a financial interest in the Trust because of its right to returns related to servicing fee revenue from the Trust, its right to reimbursement for expenses, and its obligation to repurchase loans from the Trust in certain instances. Additionally, the Company performs or directs activities that significantly affect the Trust’s economic performance through or by (i) operation of the platform that enables borrowers to apply for loans purchased by the Trust; (ii) credit underwriting and servicing of loans purchased by the Trust; (iii) LCA's selection of the loans that are purchased by the Trust on behalf of advised Certificate holders; and (iv) LCA’s role to source investors that ultimately purchase limited partnership interests in a fund or Certificates, both of which supply the funds for the Trust to purchase loans. Collectively, the activities described above allow the Company to fund more loans than would be the case without the existence of the Trust, to collect the related loan transaction fees and for LCA to collect the management fees on the investors’ capital used to purchase certificates. Accordingly, the Company is deemed to have power to direct activities most significant to the Trust and economic interest in the activities because of loan funding and transaction and management fees. Therefore, the Company concluded that it is the primary beneficiary of the Trust and consolidated the Trust’s operations in its condensed consolidated financial statements. Investment In Cirrix Capital On April 1, 2016, the Company closed its $10.0 million investment, for an approximate ownership interest of 15%, in Cirrix Capital (Investment Fund), a holding company to a family of funds that purchases loans and interests in loans from the Company. Per the partnership agreement, the family of funds can invest up to 20% of their assets outside of whole loans and interests in whole loans facilitated by the Company. At March 31, 2016, 100% of the family of funds' assets were comprised of whole loans and interests in loans facilitated by Lending Club's platform. The Company's former Chief Executive Officer (former CEO) and a board member (together, Related Party Investors) also have limited partnership interests in the Investment Fund that resulted in an aggregate ownership of approximately 31% in the Investment Fund at April 1, 2016 by the Related Party Investors and the Company. The Company's investment is deemed to be a variable interest in the Investment Fund because the limited partnership interest shares in the expected returns and losses of the Investment Fund. The expected returns and losses of the Investment Fund result from the net returns of the family of funds owned by the Investment Fund, which are derived from interest income earned from loans and interests in whole loans that are purchased by the Investment Fund and were facilitated by the Company. Additionally, the Investment Fund is considered a VIE. The Company is not the primary beneficiary of the Investment Fund because the Company does not have the power to direct the activities that most significantly affect the Investment Fund’s economic performance. As a result, the Company does not consolidate the operations of the Investment Fund in financial statements of the Company. The Company accounts for this investment under the equity method of accounting, which approximates its maximum exposure to loss as a result of its involvement in the Investment Fund. At March 31, 2016, the Company had subscribed to invest $10.0 million in the Investment Fund, which was recorded in other assets in the condensed consolidated balance sheet. Separately, the Company is subject to a credit support agreement that requires it to pledge and restrict cash in support of its contingent obligation to reimburse the Investment Fund for net credit losses on loans underlying the interests in whole loans that are in excess of a specified, aggregate net loss threshold. The Related Party Investors and the Company are excluded from receiving any benefits, if provided, from this credit support agreement. As of March 31, 2016, the Company has not been required to nor does it anticipate recording losses under this agreement. In conjunction with the Company's determination that the Company has a variable interest in a VIE, the Investment Fund, it is required to disclose the Company's maximum exposure to loss under this credit support agreement, which was $39.0 million and $34.4 million at March 31, 2016 and December 31, 2015, respectively, and assumes all loans covered under this credit support agreement default. The Investment Fund passes along credit risk to the limited partners. The Company did not design the Investment Fund’s investment strategy and cannot require the Investment Fund to purchase loans. Additionally, the Company reviewed whether it collectively, with the Related Party Investors, had power to control the Investment Fund and concluded that it did not based on the unilateral ability of the general partner to exercise power over the limited partnership and the inability of the limited partners to remove the general partner. See “Note 18 – Related Party Transactions” for additional information. LCA Managed or Advised Private Funds In conjunction with the adoption of a new accounting standard that amends accounting for consolidations effective January 1, 2016, the Company reviewed its relationship with the private funds managed or advised by LCA and concluded that it does not have a variable interest in the private funds. As of March 31, 2016, the Company does not hold any investments in the private funds. Certain of the Company's related parties have investments in the private funds, as discussed in “Note 18 – Related Party Transactions.” The Company charges the limited partners in the private funds a management fee based on their account balance at month end for services performed as the general manager, including fund administration, and audit, accounting and tax preparation services. Accordingly, the Company's fee arrangements contain only terms, conditions, or amounts that are customarily present in arrangements for similar services negotiated at arm’s length. These fees are solely compensation for services provided and are commensurate with the level of effort required to provide those services. The Company does not have any other interests in the private funds and therefore does not have a variable interest in the private funds. Management regularly reviews and reconsiders its previous conclusions regarding whether it holds a variable interest in potential VIEs, the status of an entity as a VIE, and whether the Company is required to consolidate such VIEs in the condensed consolidated financial statements. Servicing Rights As a result of the nature of servicing rights on the sale of loans, the Company is a variable interest holder in certain entities that purchase these loans. For all of these entities the Company either does not have the power to direct the activities that most significantly affect the VIE's economic performance or it does not have a potentially significant economic interest in the VIE. In no case is the Company the primary beneficiary and as a result none of these entities are consolidated on the Company's condensed consolidated financial statements. Debt The Company has elected to record certain costs directly related to issuing its secured revolving credit facility as an asset included in other assets on the Company’s condensed consolidated balance sheets. These costs are amortized as interest expense over the contractual term of the secured revolving credit facility. On a limited basis, the Company may transfer loans to investors that do not meet sale criteria for accounting purposes. These loans are recorded as secured borrowings on the condensed consolidated balance sheets. Adoption of New Accounting Standard In February 2015, the Financial Accounting Standards Board (FASB) issued new guidance amending accounting for consolidations, which was effective January 1, 2016. The guidance changes what an investor must consider in determining whether it is required to consolidate an entity in which it holds an interest. The adoption of this guidance did not have an impact on the Company's financial position, results of operations, earnings per share (EPS) or cash flows. The adoption of this guidance is further discussed above in “Consolidation of Variable Interest Entities.” New Accounting Standards Not Yet Adopted In March 2016, the FASB amended guidance related to the accounting for share-based payments, which will be effective January 1, 2017. The guidance simplifies the accounting for share-based payments related to the income tax consequences of share-based awards, the classification of awards in a company's financial statements, and estimating forfeitures of awards. The Company is currently evaluating the impact of this new guidance on its financial position, results of operations, EPS and cash flows. In May 2014, the FASB issued new guidance on revenue recognition, which will be effective January 1, 2018. The guidance clarifies that revenue from contracts with customers should be recognized in a manner that depicts both the likelihood of payment and the timing of the related transfer of goods or performance of services. In March 2016, the Board issued an amendment to the new revenue recognition guidance clarifying how to determine if an entity is a principal or agent in a transaction. The effective date and transition requirements for this amendment is the same as those for the new revenue guidance. The Company is currently evaluating the impact of this new guidance on its financial position, results of operations, EPS and cash flows. In February 2016, the FASB amended guidance related to the lease accounting, which will be effective January 1, 2019. The guidance requires an entity to recognize a right-of-use asset and lease liability for most lease arrangements. The standard also requires additional disclosures related to lease arrangements. The Company is currently evaluating the impact of this new guidance on its financial position, results of operations, EPS, and cash flows. In January 2016, the FASB amended guidance related to recognition and measurement of financial instruments, which will be effective January 1, 2018. The amendment changes the accounting for equity investments, change disclosure requirements related to instruments at amortized cost and fair value, and clarifies how entities should evaluate deferred tax assets for securities classified as available-for-sale. The Company is currently evaluating the impact of this new guidance on its financial position, results of operations, EPS, and cash flows. In November 2015, the FASB amended guidance related to the presentation of deferred income taxes, which will be effective January 1, 2017. The guidance simplified the presentation to require that all deferred income taxes be presented as noncurrent on a classified statement of financial position. The Company does not currently present a classified statement of financial position and accordingly does not expect this guidance to have any impact on its disclosures. There have been no other changes to these significant accounting policies during the first quarter of 2016.

Summary of Significant Accounting Policies

The Company's significant accounting policies are discussed in “Part II – Item 8 – Financial Statements and Supplementary Data – Note 2 – Summary of Significant Accounting Policies” in the Annual Report. There have been no significant changes to these significant accounting policies during the first quarter of 2016, except as noted below.

Transaction Fee Revenue

Transaction fees are paid by issuing banks or patient service providers to Lending Club for the work Lending Club performs through its platform and Springstone’s platform in facilitating loans for its issuing bank partners. These fees are recognized as a component of operating revenue at the time of loan issuance. Factors affecting the amount of fees paid to the issuing bank by the borrower and from the bank to the Company include initial loan amount, term, credit quality, and other factors.

Commencing with the origination fee increase announced in March 2016, in the event a borrower prepays a loan in full before maturity, the Company assumes the issuing bank partner's obligation under Utah law to refund the pro-rated amount of the fee received by the bank in excess of 5%. Additionally, the Company may provide refunds to patient finance borrowers when the borrower cancels the loan under certain conditions. Since Lending Club can estimate refunds based on loan cancellation or prepayment experience, the Company records transaction fee revenue net of estimated refunds at the time of loan issuance.

Restricted Cash

Restricted cash consists primarily of checking, money market and certificate of deposit accounts that are: (i) pledged to or held in escrow by the Company’s correspondent banks as security for transactions processed on or related to Lending Club’s platform or activities by certain investors; (ii) pledged through a credit support agreement with a certificate holder or (iii) investors’ funds transactions-in-process that have not yet been applied to their accounts on the platform and transferred to segregated bank accounts that hold investors’ funds.

Investor cash balances (excluding transactions-in-process) are held in segregated bank or custodial accounts and are not commingled with the Company’s monies or held on the Company’s balance sheet.

Consolidation of Variable Interest Entities

A variable interest entity (VIE) is a legal entity that does not have sufficient equity at risk to finance its own operations, whose equity holders do not have the power to direct the activities most significantly affecting the economic outcome of those activities, or whose equity holders do not share proportionately in the losses or receive the residual returns of the entity. The determination of whether an entity is a VIE requires a significant amount of judgment. When the Company has a controlling financial interest in a VIE, it must consolidate the results of the VIE’s operations into its condensed consolidated financial statements. A controlling financial interest exists if the Company has both the power to direct the VIE’s activities that most significantly affect the VIE’s economic performance (power) and the obligation to absorb losses or receive benefits that could be potentially significant to the VIE (economics).

LC Trust I

The Company has determined that the Trust is a VIE and that the Company has a controlling financial interest in the Trust and therefore must consolidate the Trust in its condensed consolidated financial statements. The Company established the Trust in February 2011 and funded it with a nominal residual investment. The Company is the only residual investor in the Trust. The purpose of the Trust is to acquire and hold loans for the benefit of investors who have invested in certificates issued by the Trust. The Trust conducts no other business other than purchasing and retaining loans or portions thereof for the benefit of the investment funds and their underlying limited partners. The Trust holds loans, none of which are financed by the Company. The cash flows from the loans held by the Trust are used to repay obligations under the certificates. The Trust’s assets and liabilities were reflected in the Company's consolidated financial statements at March 31, 2016 and December 31, 2015.

In connection with the formation of the investment funds, it was determined that in order to achieve success in raising investment capital, the assets to be invested in by the investment funds must be held by an entity that was separate and distinct from the Company (i.e. bankruptcy remote) in order to reduce this risk and uncertainty. In the event of the Company's insolvency, it is anticipated that the assets of the Trust would not become part of the bankruptcy estate, but that outcome is uncertain.

The Company's capital contributions, which are the only equity investments in the Trust, are insufficient to allow the Trust to finance the purchase of a significant amount of loans without the issuance of certificates to investors. Therefore, the Trust’s capitalization level qualifies the Trust as a VIE. The Company has a financial interest in the Trust because of its right to returns related to servicing fee revenue from the Trust, its right to reimbursement for expenses, and its obligation to repurchase loans from the Trust in certain instances. Additionally, the Company performs or directs activities that significantly affect the Trust’s economic performance through or by (i) operation of the platform that enables borrowers to apply for loans purchased by the Trust; (ii) credit underwriting and servicing of loans purchased by the Trust; (iii) LCA's selection of the loans that are purchased by the Trust on behalf of advised Certificate holders; and (iv) LCA’s role to source investors that ultimately purchase limited partnership interests in a fund or Certificates, both of which supply the funds for the Trust to purchase loans. Collectively, the activities described above allow the Company to fund more loans than would be the case without the existence of the Trust, to collect the related loan transaction fees and for LCA to collect the management fees on the investors’ capital used to purchase certificates. Accordingly, the Company is deemed to have power to direct activities most significant to the Trust and economic interest in the activities because of loan funding and transaction and management fees. Therefore, the Company concluded that it is the primary beneficiary of the Trust and consolidated the Trust’s operations in its condensed consolidated financial statements.

Investment In Cirrix Capital

On April 1, 2016, the Company closed its $10.0 million investment, for an approximate ownership interest of 15%, in Cirrix Capital (Investment Fund), a holding company to a family of funds that purchases loans and interests in loans from the Company. Per the partnership agreement, the family of funds can invest up to 20% of their assets outside of whole loans and interests in whole loans facilitated by the Company. At March 31, 2016, 100% of the family of funds' assets were comprised of whole loans and interests in loans facilitated by Lending Club's platform. The Company's former Chief Executive Officer (former CEO) and a board member (together, Related Party Investors) also have limited partnership interests in the Investment Fund that resulted in an aggregate ownership of approximately 31% in the Investment Fund at April 1, 2016 by the Related Party Investors and the Company.

The Company's investment is deemed to be a variable interest in the Investment Fund because the limited partnership interest shares in the expected returns and losses of the Investment Fund. The expected returns and losses of the Investment Fund result from the net returns of the family of funds owned by the Investment Fund, which are derived from interest income earned from loans and interests in whole loans that are purchased by the Investment Fund and were facilitated by the Company. Additionally, the Investment Fund is considered a VIE. The Company is not the primary beneficiary of the Investment Fund because the Company does not have the power to direct the activities that most significantly affect the Investment Fund’s economic performance. As a result, the Company does not consolidate the operations of the Investment Fund in financial statements of the Company. The Company accounts for this investment under the equity method of accounting, which approximates its maximum exposure to loss as a result of its involvement in the Investment Fund. At March 31, 2016, the Company had subscribed to invest $10.0 million in the Investment Fund, which was recorded in other assets in the condensed consolidated balance sheet.

Separately, the Company is subject to a credit support agreement that requires it to pledge and restrict cash in support of its contingent obligation to reimburse the Investment Fund for net credit losses on loans underlying the interests in whole loans that are in excess of a specified, aggregate net loss threshold. The Related Party Investors and the Company are excluded from receiving any benefits, if provided, from this credit support agreement. As of March 31, 2016, the Company has not been required to nor does it anticipate recording losses under this agreement. In conjunction with the Company's determination that the Company has a variable interest in a VIE, the Investment Fund, it is required to disclose the Company's maximum exposure to loss under this credit support agreement, which was $39.0 million and $34.4 million at March 31, 2016 and December 31, 2015, respectively, and assumes all loans covered under this credit support agreement default.

The Investment Fund passes along credit risk to the limited partners. The Company did not design the Investment Fund’s investment strategy and cannot require the Investment Fund to purchase loans. Additionally, the Company reviewed whether it collectively, with the Related Party Investors, had power to control the Investment Fund and concluded that it did not based on the unilateral ability of the general partner to exercise power over the limited partnership and the inability of the limited partners to remove the general partner. See “Note 18 – Related Party Transactions” for additional information.

LCA Managed or Advised Private Funds

In conjunction with the adoption of a new accounting standard that amends accounting for consolidations effective January 1, 2016, the Company reviewed its relationship with the private funds managed or advised by LCA and concluded that it does not have a variable interest in the private funds. As of March 31, 2016, the Company does not hold any investments in the private funds. Certain of the Company's related parties have investments in the private funds, as discussed in “Note 18 – Related Party Transactions.” The Company charges the limited partners in the private funds a management fee based on their account balance at month end for services performed as the general manager, including fund administration, and audit, accounting and tax preparation services. Accordingly, the Company's fee arrangements contain only terms, conditions, or amounts that are customarily present in arrangements for similar services negotiated at arm’s length. These fees are solely compensation for services provided and are commensurate with the level of effort required to provide those services. The Company does not have any other interests in the private funds and therefore does not have a variable interest in the private funds.

Management regularly reviews and reconsiders its previous conclusions regarding whether it holds a variable interest in potential VIEs, the status of an entity as a VIE, and whether the Company is required to consolidate such VIEs in the condensed consolidated financial statements.

Servicing Rights

As a result of the nature of servicing rights on the sale of loans, the Company is a variable interest holder in certain entities that purchase these loans. For all of these entities the Company either does not have the power to direct the activities that most significantly affect the VIE's economic performance or it does not have a potentially significant economic interest in the VIE. In no case is the Company the primary beneficiary and as a result none of these entities are consolidated on the Company's condensed consolidated financial statements.

Debt

The Company has elected to record certain costs directly related to issuing its secured revolving credit facility as an asset included in other assets on the Company’s condensed consolidated balance sheets. These costs are amortized as interest expense over the contractual term of the secured revolving credit facility. On a limited basis, the Company may transfer loans to investors that do not meet sale criteria for accounting purposes. These loans are recorded as secured borrowings on the condensed consolidated balance sheets.

Adoption of New Accounting Standard

In February 2015, the Financial Accounting Standards Board (FASB) issued new guidance amending accounting for consolidations, which was effective January 1, 2016. The guidance changes what an investor must consider in determining whether it is required to consolidate an entity in which it holds an interest. The adoption of this guidance did not have an impact on the Company's financial position, results of operations, earnings per share (EPS) or cash flows. The adoption of this guidance is further discussed above in “Consolidation of Variable Interest Entities.”

New Accounting Standards Not Yet Adopted

In March 2016, the FASB amended guidance related to the accounting for share-based payments, which will be effective January 1, 2017. The guidance simplifies the accounting for share-based payments related to the income tax consequences of share-based awards, the classification of awards in a company's financial statements, and estimating forfeitures of awards. The Company is currently evaluating the impact of this new guidance on its financial position, results of operations, EPS and cash flows.

In May 2014, the FASB issued new guidance on revenue recognition, which will be effective January 1, 2018. The guidance clarifies that revenue from contracts with customers should be recognized in a manner that depicts both the likelihood of payment and the timing of the related transfer of goods or performance of services. In March 2016, the Board issued an amendment to the new revenue recognition guidance clarifying how to determine if an entity is a principal or agent in a transaction. The effective date and transition requirements for this amendment is the same as those for the new revenue guidance. The Company is currently evaluating the impact of this new guidance on its financial position, results of operations, EPS and cash flows.

In February 2016, the FASB amended guidance related to the lease accounting, which will be effective January 1, 2019. The guidance requires an entity to recognize a right-of-use asset and lease liability for most lease arrangements. The standard also requires additional disclosures related to lease arrangements. The Company is currently evaluating the impact of this new guidance on its financial position, results of operations, EPS, and cash flows.

In January 2016, the FASB amended guidance related to recognition and measurement of financial instruments, which will be effective January 1, 2018. The amendment changes the accounting for equity investments, change disclosure requirements related to instruments at amortized cost and fair value, and clarifies how entities should evaluate deferred tax assets for securities classified as available-for-sale. The Company is currently evaluating the impact of this new guidance on its financial position, results of operations, EPS, and cash flows.

In November 2015, the FASB amended guidance related to the presentation of deferred income taxes, which will be effective January 1, 2017. The guidance simplified the presentation to require that all deferred income taxes be presented as noncurrent on a classified statement of financial position. The Company does not currently present a classified statement of financial position and accordingly does not expect this guidance to have any impact on its disclosures.

There have been no other changes to these significant accounting policies during the first quarter of 2016.