LendingClub (LC) 10-Q 9 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Trading Symbol	LC
Entity Registrant Name	LENDINGCLUB CORPORATION
Entity Central Index Key	1,409,970
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		419,662,805

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents		$ 405,078	$ 401,719
Restricted cash (1)	[1]	226,818	242,570
Securities available for sale		128,424	117,573
Loans held for investment at fair value (1)	[1]	2,635,413	2,932,325
Loans held for investment by the Company at fair value (1)	[1]	317,458	361,230
Loans held for sale by the Company at fair value (1)	[1]	248,344	235,825
Accrued interest receivable (1)	[1]	27,012	33,822
Property, equipment and software, net		107,177	101,933
Intangible assets, net		20,888	21,923
Goodwill		35,633	35,633
Other assets (1)	[1]	106,870	156,278
Total assets		4,259,115	4,640,831
Liabilities and Equity
Accounts payable		3,389	9,401
Accrued interest payable (1)	[1]	25,510	32,992
Accrued expenses and other liabilities (1)	[1]	196,517	228,380
Payable to investors		108,247	143,310
Notes, certificates and secured borrowings at fair value (1)	[1]	2,655,417	2,954,768
Payable to securitization note and residual certificate holders (includes $1,354 and $1,479 at fair value, respectively) (1)	[1]	280,915	312,123
Payable to revolving credit facilities (1)	[1]	74,000	32,100
Total liabilities		3,343,995	3,713,074
Equity
Common stock, $0.01 par value; 900,000,000 shares authorized; 421,890,329 and 419,756,546 shares issued, respectively; 419,607,629 and 417,473,846 shares outstanding, respectively		4,219	4,198
Additional paid-in capital		1,346,770	1,327,206
Accumulated deficit		(420,600)	(389,419)
Treasury stock, at cost; 2,282,700 shares		(19,485)	(19,485)
Accumulated other comprehensive income (loss)		45	(5)
Total LendingClub stockholders’ equity		910,949	922,495
Noncontrolling interests		4,171	5,262
Total equity		915,120	927,757
Total liabilities and equity		$ 4,259,115	$ 4,640,831
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Restricted cash	[1]	$ 226,818	$ 242,570
Loans held for investment at fair value	[1]	2,635,413	2,932,325
Loans held for investment by the Company at fair value	[1]	317,458	361,230
Loans held for sale by the Company at fair value (1)	[1]	248,344	235,825
Accrued interest receivable	[1]	27,012	33,822
Other assets	[1]	106,870	156,278
Total assets of consolidated variable interest entities		4,259,115	4,640,831
Accrued interest payable	[1]	25,510	32,992
Accrued expenses and other liabilities	[1]	196,517	228,380
Notes, certificates and secured borrowings at fair value (1)	[1]	2,655,417	2,954,768
Payable to securitization note and residual certificate holders	[1]	280,915	312,123
Payable to revolving credit facilities	[1]	74,000	32,100
Total liabilities of consolidated variable interest entities		$ 3,343,995	$ 3,713,074
Common stock, par value ($ per share)		$ 0.01	$ 0.01
Common stock, shares authorized		900,000,000	900,000,000
Common stock, shares issued		421,890,329	419,756,546
Common stock, shares outstanding		419,607,629	417,473,846
Treasury stock, shares		2,282,700	2,282,700
Payable to securitization residual certificate holders		$ 1,354	$ 1,479
Consolidated VIEs
Restricted cash		45,998	34,370
Loans held for investment at fair value		1,043,223	1,202,260
Loans held for investment by the Company at fair value		307,173	350,699
Loans held for sale by the Company at fair value (1)		86,156	60,812
Accrued interest receivable		12,387	15,602
Other assets		3,410	6,324
Total assets of consolidated variable interest entities		1,498,347	1,670,067
Accrued interest payable		11,196	14,789
Accrued expenses and other liabilities		836	52
Notes, certificates and secured borrowings at fair value (1)		1,050,091	1,210,349
Payable to securitization note and residual certificate holders		280,915	312,123
Payable to revolving credit facilities		49,000	32,100
Total liabilities of consolidated variable interest entities		$ 1,392,038	$ 1,569,413
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Transaction fees		$ 111,182	$ 98,692
Investor fees		27,895	21,180
Gain on sales of loans (1)	[1]	12,671	1,892
Other revenue (1)	[1]	1,457	1,746
Net interest income and fair value adjustments:
Interest income		138,018	160,996
Interest expense		(110,843)	(158,607)
Net fair value adjustments (1)	[1]	(28,713)	(1,417)
Net interest income and fair value adjustments (1)	[1]	(1,538)	972
Total net revenue		151,667	124,482
Operating expenses:
Sales and marketing		57,517	54,583
Origination and servicing		22,645	20,449
Engineering and product development		36,837	35,760
Other general and administrative		52,309	43,574
Regulatory litigation expense		13,500	0
Total operating expenses		182,808	154,366
Loss before income tax expense		(31,141)	(29,884)
Income tax expense (benefit)		39	(40)
Consolidated net loss		(31,180)	(29,844)
Less: Income attributable to noncontrolling interests		1	0
LendingClub net loss		$ (31,181)	$ (29,844)
Net loss per share attributable to LendingClub: Basic ($ per share)		$ (0.07)	$ (0.07)
Net loss per share attributable to LendingClub: Diluted ($ per share)		$ (0.07)	$ (0.07)
Weighted-average common shares - Diluted (shares)		418,299,301	400,308,521
Weighted-average common shares - Basic (shares)		418,299,301	400,308,521
[1]	Prior period amounts have been reclassified to conform to the current period presentation. See “Notes to Condensed Consolidated Financial Statements – Note 1. Basis of Presentation” for additional information.

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
LendingClub net income (loss)	$ (31,181)	$ (29,844)
Other comprehensive income (loss), before tax:
Net unrealized gain on securities available for sale	22	236
Other comprehensive income (loss), before tax	22	236
Income tax effect	(19)	95
Other comprehensive income (loss), net of tax	41	141
Less: Other comprehensive income (loss) attributable to noncontrolling interests	(9)	0
LendingClub other comprehensive income (loss), net of tax	50	141
LendingClub comprehensive income (loss)	(31,131)	(29,703)
Comprehensive income (loss) attributable to noncontrolling interests	(9)	0
Total comprehensive income (loss)	$ (31,140)	$ (29,703)

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Changes in Equity Statement - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total Equity	Non-controlling interest
Beginning balance (in shares) at Dec. 31, 2016		397,979,772		2,282,700
Beginning balance at Dec. 31, 2016	$ 975,770	$ 4,003	$ 1,226,206	$ (19,485)	$ (767)	$ (234,187)	$ 975,770	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation and related tax effects	22,056		23,453			(1,397)	22,056
Stock option exercises and other (in shares)		4,864,441
Stock option exercises and other	4,299	$ 48	4,251				4,299
Net unrealized gain on available for sale securities, net of tax	141				141		141
Net loss	(29,844)					(29,844)	(29,844)
Net loss, including portion attributable to noncontrolling interest	(29,844)
Ending balance (in shares) at Mar. 31, 2017		402,844,213		2,282,700
Ending balance at Mar. 31, 2017	972,422	$ 4,051	1,253,910	$ (19,485)	(626)	(265,428)	972,422	0
Beginning balance (in shares) at Dec. 31, 2017		417,473,846		2,282,700
Beginning balance at Dec. 31, 2017	927,757	$ 4,198	1,327,206	$ (19,485)	(5)	(389,419)	922,495	5,262
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation and related tax effects	20,024		20,024			0	20,024
Stock option exercises and other (in shares)		2,133,783
Stock option exercises and other	(439)	$ 21	(460)				(439)
Net unrealized gain on available for sale securities, net of tax	42				50		50	(8)
Dividends paid and return of capital to noncontrolling interests	(1,084)							(1,084)
Net loss	(31,181)					(31,181)	(31,181)	1
Net loss, including portion attributable to noncontrolling interest	(31,180)
Ending balance (in shares) at Mar. 31, 2018		419,607,629		2,282,700
Ending balance at Mar. 31, 2018	$ 915,120	$ 4,219	$ 1,346,770	$ (19,485)	$ 45	$ (420,600)	$ 910,949	$ 4,171

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Cash Flows from Operating Activities:
Consolidated net loss		$ (31,180)	$ (29,844)
Adjustments to reconcile consolidated net loss to net cash provided by (used for) operating activities:
Net fair value adjustments	[1]	28,713	1,417
Change in fair value of loan servicing liabilities		(358)	(809)
Change in fair value of loan servicing assets		5,606	4,047
Stock-based compensation, net		17,801	19,498
Depreciation and amortization		11,701	10,254
(Gain) Loss on sales of loans		(13,116)	(5,043)
Other, net		1,582	352
Purchase of loans held for sale		(1,597,816)	(1,176,154)
Principal payments received on loans held for sale		58,943	892
Proceeds from sales of whole loans		1,348,092	1,172,161
Purchase of loans held for sale by consolidated VIE		(270,770)	0
Proceeds from sale of securities by consolidated VIE, net of underwriting fees and costs		437,969	0
Net change in operating assets and liabilities:
Accrued interest receivable, net		5,961	4,655
Other assets		57,461	(6,452)
Due from related parties		(96)	71
Accounts payable		(6,058)	(3,833)
Accrued interest payable		(7,482)	(5,152)
Accrued expenses and other liabilities		(33,254)	(3,178)
Net cash provided by (used for) operating activities		13,699	(17,118)
Cash Flows from Investing Activities:
Purchases of loans		(293,460)	(524,412)
Principal payments received on loans		504,618	640,006
Proceeds from recoveries and sales of charged-off loans		17,658	10,889
Proceeds from sales of whole loans		0	2,118
Purchases of securities available for sale		(32,346)	(26,430)
Proceeds from sales, maturities, redemptions and paydowns of securities available for sale		40,476	66,817
Proceeds from paydowns of asset-backed securities related to Company- sponsored securitizations and CLUB Certificate transactions		6,339	0
Purchases of property, equipment and software, net		(13,607)	(7,908)
Net cash provided by investing activities		229,678	161,080
Cash Flows from Financing Activities:
Change in payable to investors		(35,222)	(29,753)
Proceeds from issuance of notes and certificates		292,461	523,305
Repayments of secured borrowings		(47,545)	0
Principal payments on and retirements of notes and certificates		(456,157)	(641,103)
Payments on notes and certificates from recoveries/sales of related charged-off loans		(17,459)	(10,790)
Principal payments on securitization notes		(31,729)	0
Proceeds from revolving credit facilities		274,900	0
Principal payments on revolving credit facilities		(233,000)	0
Payment for debt issuance costs		(1,119)	0
Proceeds from stock option exercises and other		185	4,308
Return of capital to noncontrolling interests in consolidated VIE		(1,055)	0
Dividends paid to noncontrolling interests in consolidated VIE		(30)	0
Net cash used for financing activities		(255,770)	(154,033)
Net Decrease in Cash, Cash Equivalents and Restricted Cash		(12,393)	(10,071)
Cash, Cash Equivalents and Restricted Cash, Beginning of Period		644,289	693,412
Cash, Cash Equivalents and Restricted Cash, End of Period		631,896	683,341
Supplemental Cash Flow Information:
Cash paid for interest		116,273	163,692
Accruals for property, equipment and software		956	905
Beneficial interests retained from securitization and CLUB Certificate transactions		$ 26,639	$ 0
[1]	Prior period amounts have been reclassified to conform to the current period presentation. See “Notes to Condensed Consolidated Financial Statements – Note 1. Basis of Presentation” for additional information.

Condensed Consolidated Stateme8

Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Statement of Cash Flows [Abstract]
Cash and cash equivalents		$ 405,078	$ 401,719
Restricted cash	[1]	226,818	242,570
Total cash, cash equivalents and restricted cash		$ 631,896	$ 644,289	$ 683,341	$ 693,412
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation LendingClub Corporation (LendingClub) operates an online lending marketplace platform that connects borrowers and investors. LendingClub Asset Management, LLC (LCAM), is a registered investment advisor with the Securities and Exchange Commission (SEC) and wholly-owned subsidiary of LendingClub that acts as the general partner for certain private funds. Additionally, LCAM is an advisor to separately managed accounts (SMAs) and funds of which LCAM’s wholly-owned subsidiaries are the general partners. Springstone Financial, LLC (Springstone), is a wholly-owned subsidiary of LendingClub that facilitates the origination of education and patient finance loans by third-party issuing banks. LC Trust I (the Trust) is an independent Delaware business trust that acquires loans from LendingClub and holds them for the sole benefit of certain investors that have purchased trust certificates issued by the Trust that are related to specific underlying loans for the benefit of the investor. Various wholly-owned subsidiaries of LendingClub have been established to enter into warehouse credit agreements with certain lenders for secured revolving credit facilities. Additionally, LendingClub has established various entities in connection with its role as the sponsor of asset-backed securities transactions, which include providing accredited investors and qualified institutional buyers the opportunity to invest in a pool of unsecured personal whole loans in a certificated form (CLUB Certificates). The accompanying unaudited condensed consolidated financial statements include LendingClub, its subsidiaries (collectively referred to as the Company, we, or us) and consolidated variable interest entities (VIEs). Noncontrolling interests are reported as a separate component of consolidated equity from the equity attributable to LendingClub’s stockholders for all periods presented. All intercompany balances and transactions have been eliminated. These condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (GAAP) for interim financial information and contain all adjustments, consisting of only normal recurring adjustments, necessary for the fair statement of the results and financial position for the periods presented. These accounting principles require management to make certain estimates and assumptions that affect the amounts in the accompanying financial statements. Actual results may differ from those estimates, and results reported in the interim periods are not necessarily indicative of the results for the full year or any other interim period. In the fourth quarter of 2017, the Company separately reported “Gain (Loss) on sales of loans” and “Net fair value adjustments” from “Other revenue (expense)” in the Company’s Consolidated Statements of Operations. “Net fair value adjustments” was also revised to include other-than-temporary impairment charges on subordinated residual certificates held as a result of Company-sponsored securitization transactions, which were previously included in “Other revenue.” These changes had no impact on “Total net revenue.” Prior period amounts have been reclassified to conform to the current period presentation. The accompanying interim condensed consolidated financial statements and these related notes should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 (Annual Report) filed on February 22, 2018.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
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 for the three month period ended March 31, 2018 , except as noted below. Accrued Interest Accrued interest income on loans is calculated based on the contractual interest rate of the loan and recorded as interest income as earned. Loans are placed on non-accrual status upon reaching 90 days past due. When a loan is placed on non-accrual status, the Company stops accruing interest and reverses all accrued but unpaid interest as of such date. Accrued interest payable on notes, certificates and secured borrowings is also reduced when the corresponding loan is placed on non-accrual status, due to the payment dependent structure of the notes, certificates and secured borrowings. Revenue Recognition Transaction Fees: Transaction fees are considered revenue from contracts with customers. The Company receives transaction fees for the performance obligation of providing loan application processing and loan facilitation services for the issuing banks and education and patient service providers. Transaction fee contracts contain a single performance obligation, which consists of a series of distinct services that are substantially the same with the same pattern of transfer to customers. Transaction fees are based on the initial principal amount of the loans facilitated by the Company and paid by the issuing banks and education and patient service providers each time a loan is issued by the issuing banks. Transaction fees to which the Company expects to be entitled are variable consideration because loan volume originated over the contractual term is not known at the contracts inception. The transaction fee is determined each time a loan is issued based on that loan’s initial principal amount. The Company pays WebBank a loan trailing fee as consideration payable to customers (the issuing banks and education and patient service providers). The loan trailing fee liability is recorded in “Accrued Expense and Other Liabilities” on the Company’s Condensed Consolidated Balance Sheets. See “ Loan Trailing Fee Liability ” in “ Part II – Item 8. Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note 2. Summary of Significant Accounting Policies ” in the Company’s Annual Report for further discussion. Additionally, the Company assumes the issuing bank’s obligation under Utah law to refund the pro-rated amount of the transaction fee in excess of 5% in the event the borrower prepays the loan in full before maturity. Additionally, the Company may provide refunds to borrowers when the borrower cancels the loan under certain conditions. The Company estimates refunds based on historical information. Transaction fees are reduced by estimated trailing fees and refunds. Because the contract contains a single performance obligation, the entire transaction fee is allocated to the single performance obligation, which is satisfied at the time a loan facilitated by the Company is issued by the issuing banks. Because revenue is recognized at the same time that payments are received, there are no associated contract assets, contract liabilities, or accounts receivable. The Company pays sales incentives to certain employees to promote the platform and certain programs. These costs do not qualify as deferred contract costs and are expensed as incurred because they are not incremental costs of obtaining a contract with a customer. Investor Fees: Note investors, certain certificate holders and whole loan purchasers typically pay LendingClub a servicing fee on each payment received from a borrower or on the investors’ month-end principal balance of loans serviced. The servicing fee compensates the Company for managing payments from borrowers and payments to investors and maintaining investors’ platform accounts. The Company records servicing fees when received as a component of “Investor fees” in the Consolidated Statements of Operations. Servicing fees can be, and have been, modified or waived at management’s discretion. Investor fees also include the change in fair value of loan servicing assets and liabilities. Investor fees related to investment funds and separately managed accounts (SMAs) are revenue from contracts with customers. The Company receives the fees in exchange for the performance obligation of providing a series of distinct investment management services that are satisfied over time. The fees are payable monthly in arrears based on the month-end capital account or asset balance, but the fees can be, and have been, modified or waived at the discretion of LCAM. Investor fees related to funds and SMAs are recognized at the end of each month. Other Revenue: Other revenue primarily consists of referral fee revenue. Referral fees are revenue from contracts with customers. The Company refers prospective borrowers to third-party consumer loan providers after the prospective borrower applies for a loan through LendingClub’s platform but is denied credit. Referral contracts contain a single performance obligation, which consists of a series of distinct referral services that are satisfied over time. The Company recognizes referral fees for each distinct instance of referral service when the Company is entitled to receive payment, either at the time the referral is made or when the prospective borrower enters into a successful loan agreement with the third-party consumer loan provider, pursuant to the terms of the applicable referral agreement. Adoption of New Accounting Standards The Company adopted the following accounting standards during the three month period ended March 31, 2018 : Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers (Topic 606): Under the standard, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. The Company adopted Topic 606 on January 1, 2018 using the modified retrospective method for all contracts not completed as of the date of adoption. For contracts that were modified before the effective date, the Company reflected the aggregate effect of all modifications when identifying performance obligations and allocating transaction price in accordance with practical expedient ASC 606-10-65-1-(f)-4. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The adoption of Topic 606 did not change (1) the timing and pattern of revenue recognition for revenue streams in the scope of Topic 606, which includes transaction fees, management fees, and referral revenue, (2) the presentation of revenue as gross versus net, or (3) the amount of contract assets, contract liabilities, and deferred contract costs. Therefore, the adoption of Topic 606 had no impact on the Company’s financial position, results of operations, equity or cash flows as of the adoption date or for the three-month period ended March 31, 2018. The Company has included the disclosures required by Topic 606 in “ Note 3. Revenue from Contracts with Customers .” ASU 2016-01 Financial Instruments – Overall (Subtopic: 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which amends the accounting for equity investments, changes 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 guidance also requires an entity to present separately in other comprehensive income the portion of the total change in fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability under the fair value option. The Company adopted ASU 2016-01 on January 1, 2018. The adoption did not impact the Company’s financial position, results of operations, or cash flows. The Company has included the disclosures required by ASU 2016-01 in “ Note 8. Fair Value of Assets and Liabilities. ” ASU 2016-15 Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments to address diversity in practice in how certain cash receipts and payments are presented and classified in the statements of cash flows. The guidance also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The Company adopted ASU 2016-15 on January 1, 2018 and applied it retrospectively to all periods presented in the Consolidated Statements of Cash Flows. The adoption did not impact the Condensed Consolidated Statements of Cash Flows. ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, addresses the diversity in the classification and presentation of changes in restricted cash in the statements of cash flows, by requiring entities to combine the changes in cash and cash equivalents and restricted cash in one line. As a result, entities will no longer present transfers between cash and cash equivalents and restricted cash in the statements of cash flows. The Company adopted ASU 2016-18 on January 1, 2018 and applied it retrospectively to all periods presented in the Consolidated Statements of Cash Flows. For the three months ended March 31, 2018 and 2017 , the impact of the adoption resulted in a decrease in net cash provided by investing activities of $15.8 million and $28.9 million , respectively, due to reclassifying the changes in Restricted Cash to the beginning and ending Cash, Cash Equivalents and Restricted Cash balances within the Condensed Consolidated Statements of Cash Flows. ASU 2017-09 Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting, clarifies when to account for a change to the terms or conditions of a share-based payment award as a modification. The Company prospectively adopted ASU 2017-09 on January 1, 2018. The adoption did not have an impact on the Company’s financial position, results of operations, cash flows or related disclosures. ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows companies the option to reclassify stranded tax effects caused by the newly-enacted Tax Cuts and Jobs Act from accumulated other comprehensive income to retained earnings. The ASU will be effective January 1, 2019 with early adoption permitted. The Company early adopted ASU 2018-02 on January 1, 2018. The adoption did not have a material impact on the Company’s financial position, results of operations, cash flows or related disclosures. New Accounting Standards Not Yet Adopted Updates to the new accounting standards not yet adopted as disclosed in the Company’s Annual Report and recently issued are as follows: In June 2016, the FASB amended guidance related to impairment of financial instruments as part of ASU 2016-13 Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which will be effective January 1, 2020. The guidance replaces the incurred loss impairment methodology with an expected credit loss model for which a company recognizes an allowance based on the estimate of expected credit loss. The Company accounts for its loans at fair value through net income, which is outside the scope of Topic 326. For available for sale debt securities, the guidance will require recognition of expected credit losses by recognizing an allowance for credit losses when the fair value of the security is below amortized cost and the recognition of this allowance is limited to the difference between the security’s amortized cost basis and fair value. The Company is evaluating the impact this ASU will have on its financial position, results of operations, and cash flows. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires lessees to record on their balance sheets a lease liability for the obligation to make lease payments and a right-of-use (ROU) asset for the right to use the underlying asset for the lease term. Lessees may elect to not recognize lease liabilities and ROU assets for leases with terms of 12 months or less. The lease liability is measured at the present value of the lease payments over the lease term. The ROU asset will be based on the liability, adjusted for lease prepayments, lease incentives, and the lessee’s initial direct costs. For operating leases, lease expense will generally be recognized on a straight-line basis over the lease term. Lessor accounting activities are largely unchanged from existing lease accounting. The new standard is effective January 1, 2019 and requires modified retrospective transition approach, with early adoption permitted. The Company expects to adopt the new standard in the first quarter of 2019. The Company has dedicated internal resources, engaged a professional services firm, and is currently in the project planning phase of the implementation. The Company is evaluating the impact of this guidance on its financial position, results of operations, cash flows and related disclosures.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Revenue from Contracts with Customers The Company’s revenue from contracts with customers includes transaction fees, investor fees related to the funds and SMAs, and referral fees. Management fees related to the funds and SMAs are presented as a component of “Investor fees” and referral fees are presented as a component of “Other revenue” in the Condensed Consolidated Statements of Operations. The following table presents the Company’s revenue from contracts with customers, disaggregated by revenue source: Three Months Ended March 31, 2018 Timing of Revenue Recognition Services Transferred at a Point of Time Services Transferred Over Time Transaction fees $ 111,182 $ — $ 111,182 Investor fees - Funds and SMAs 41 — 41 Referral fees 836 — 836 Total Revenue from Contracts with Customers $ 112,059 $ — $ 112,059 Revenues are recognized when control of the promised services is transferred to the Company’s customers, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those services. For additional detail on the Company’s accounting policy regarding revenue recognition, see “ Note 2. Summary of Significant Accounting Policies ” above. The Company recognizes transaction fees at the time it receives such fees, therefore, no accounts receivable is recorded for transaction fees. Management fees and referral fees are received after the Company satisfies its performance obligation. As of March 31, 2018 , accounts receivable from these fees were $0.3 million . The Company had no bad-debt expense for the three month period ended March 31, 2018 . The Company had no contract assets, contract liabilities, or deferred contract costs recorded as of March 31, 2018 . Additionally, the Company did not recognize any revenue from performance obligations related to prior periods (for example, due to changes in transaction price) for the three month period ended March 31, 2018 .

Net Loss Per Share

Net Loss Per Share	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share The following table details the computation of the Company’s basic and diluted net loss per share: Three Months Ended 2018 2017 LendingClub net loss $ (31,181 ) $ (29,844 ) Weighted average common shares - Basic 418,299,301 400,308,521 Weighted average common shares - Diluted 418,299,301 400,308,521 Net loss per share attributable to LendingClub: Basic $ (0.07 ) $ (0.07 ) Diluted $ (0.07 ) $ (0.07 )

Securities Available for Sale

Securities Available for Sale	3 Months Ended
	Mar. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Securities Available for Sale	Securities Available for Sale The amortized cost, gross unrealized gains and losses, and fair value of securities available for sale as of March 31, 2018 and December 31, 2017 , were as follows: March 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Asset-backed senior securities related to Company-sponsored securitizations (1) $ 45,875 $ 54 $ (48 ) $ 45,881 Certificates of deposit 20,303 — — 20,303 Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions (1) 20,070 125 (66 ) 20,129 Corporate debt securities 19,853 2 (15 ) 19,840 Asset-backed securities 14,588 — (2 ) 14,586 Commercial paper 7,685 — — 7,685 Total securities available for sale $ 128,374 $ 181 $ (131 ) $ 128,424 December 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Asset-backed senior securities related to Company-sponsored securitizations (1) $ 36,953 $ 73 $ (6 ) $ 37,020 Certificates of deposit 24,758 — — 24,758 Corporate debt securities 16,268 1 (11 ) 16,258 Asset-backed securities 14,843 1 (1 ) 14,843 Commercial paper 14,665 — — 14,665 Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions (1) 10,058 11 (40 ) 10,029 Total securities available for sale $ 117,545 $ 86 $ (58 ) $ 117,573 (1) As of March 31, 2018 and December 31, 2017 , approximately $64.2 million and $45.3 million , respectively, of the asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions are subject to restrictions on transfer pursuant to the Company's obligations as a “sponsor” under the U.S. Risk Retention Rules (as more fully described in “ Part II. Other Information – Item 1A. Risk Factors – Risk retention rules and recent developments in our business may increase our compliance costs, impair our liquidity and otherwise adversely affect our operating results” in the Company’s Annual Report). The senior securities and the subordinated residual certificates related to the securitization and CLUB Certificate transactions are accounted for as securities available for sale, as described in “Note 7. Securitizations and Variable Interest Entities .” The senior securities and subordinated residual certificates are included in asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions in the table above. The senior securities are valued using prices obtained from third-party pricing services (Level 2 of the fair value hierarchy), as described in the Company’s Annual Report ( “Note 2. Summary of Significant Accounting Policies” ). The subordinated residual certificates and CLUB Certificates retained interests are valued using discounted cash flow models that incorporate contractual payment terms and estimated discount rates, credit losses, and prepayment rates (Level 3 of the fair value hierarchy). The fair value of the subordinated residual certificates and retained CLUB Certificates was $20.1 million and $10.0 million at March 31, 2018 and December 31, 2017 , respectively. A summary of securities available for sale with unrealized losses as of March 31, 2018 and December 31, 2017 , aggregated by period of continuous unrealized loss, is as follows: Less than 12 months 12 months or longer Total March 31, 2018 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions $ 42,018 $ (114 ) $ — $ — $ 42,018 $ (114 ) Corporate debt securities 15,377 (15 ) — — 15,377 (15 ) Asset-backed securities 1,748 (2 ) — — 1,748 (2 ) Total securities with unrealized losses (1) $ 59,143 $ (131 ) $ — $ — $ 59,143 $ (131 ) Less than 12 months Total December 31, 2017 Fair Unrealized Fair Unrealized Fair Unrealized Asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions $ 26,534 $ (46 ) $ — $ — $ 26,534 $ (46 ) Corporate debt securities 14,368 (11 ) — — 14,368 (11 ) Asset-backed securities 4,401 (1 ) — — 4,401 (1 ) Total securities with unrealized losses (1) $ 45,303 $ (58 ) $ — $ — $ 45,303 $ (58 ) (1) The number of investment positions with unrealized losses at March 31, 2018 and December 31, 2017 totaled 30 and 24 , respectively. During the first quarter of 2018 , the Company recognized $1.3 million in other-than-temporary impairment charges on its subordinated residual certificates held as a result of its Company-sponsored securitization transactions. There were no credit losses recognized into earnings for other-than-temporarily impaired securities held by the Company during the first quarter of 2018 for which a portion of the impairment was previously recognized in other comprehensive income. During the first quarter of 2017 , the Company recognized no other-than-temporary impairment charges. The contractual maturities of securities available for sale at March 31, 2018 , were as follows: Within 1 year After 1 year through 5 years Total Certificates of deposit $ 20,303 $ — $ 20,303 Corporate debt securities 19,840 — 19,840 Asset-backed securities 12,086 2,500 14,586 Commercial paper 7,685 — 7,685 Fair value $ 59,914 $ 2,500 $ 62,414 Asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions 66,010 Total fair value $ 59,914 $ 2,500 $ 128,424 Total amortized cost $ 59,929 $ 2,500 $ 128,374 During the first quarter of 2018 , the Company and the Company’s Consumer Loan Underlying Bond Depositor LLC (Depositor) sold $440.6 million in asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions. There were no realized gains or losses related to such sales. For further information, see “ Note 7. Securitizations and Variable Interest Entities .” There were no other sales of securities available for sale during the first quarter of 2018 or 2017 .

Loans Held For Investment, Loan

Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings and Loan Servicing Rights	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings and Loan Servicing Rights	Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings and Loan Servicing Rights Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings The Company sells loans and issues notes and the Trust issues certificates as a means to allow investors to invest in the corresponding loans. At March 31, 2018 and December 31, 2017 , loans held for investment, notes, certificates and secured borrowings measured at fair value on a recurring basis were as follows: Loans Held For Investment Notes, Certificates and Secured Borrowings March 31, December 31, March 31, December 31, Aggregate principal balance outstanding $ 2,829,765 $ 3,141,391 $ 2,847,040 $ 3,161,080 Net fair value adjustments (194,352 ) (209,066 ) (191,623 ) (206,312 ) Fair value $ 2,635,413 $ 2,932,325 $ 2,655,417 $ 2,954,768 At March 31, 2018 , $187.0 million of the aggregate principal balance outstanding and a fair value of $175.4 million included in “Loans held for investment” were pledged as collateral for secured borrowings. At December 31, 2017 , $242.7 million of the aggregate principal balance outstanding and a fair value of $228.1 million included in “Loans held for investment” were pledged as collateral for secured borrowings. See “Note 14. Secured Borrowings” for additional information. At March 31, 2018 and December 31, 2017 , loans invested in by the Company for which there were no associated notes, certificates or secured borrowings were as follows: Loans Invested in by the Company Loans Held For Investment Loans Held For Sale Total March 31, December 31, March 31, December 31, March 31, December 31, Aggregate principal balance outstanding $ 339,615 $ 371,379 $ 258,477 $ 242,273 $ 598,092 $ 613,652 Net fair value adjustments (22,157 ) (10,149 ) (10,133 ) (6,448 ) (32,290 ) (16,597 ) Fair value $ 317,458 $ 361,230 $ 248,344 $ 235,825 $ 565,802 $ 597,055 The net change in fair value recorded in earnings on loans invested in by the Company was $(28.5) million during the first quarter of 2018 . This change was offset by $25.2 million in net interest income earned on loans held by the Company during the first quarter of 2018 . The Company used its own capital to purchase $793.2 million in loans during the first quarter of 2018 and sold $742.7 million in loans during the first quarter of 2018 , of which $191.6 million were securitized or contributed to CLUB Certificates and $551.1 million was sold to whole loan investors. The aggregate principal balance outstanding of loans invested in by the Company was $598.1 million at March 31, 2018 , of which $258.5 million was held for sale primarily to support upcoming securitization and CLUB Certificate initiatives as well as sales to whole loan investors. See “Note 8. Fair Value of Assets and Liabilities” for a fair value rollforward of loans invested in by the Company for the three months ended March 31, 2018 and 2017 . At March 31, 2018 and December 31, 2017 , $328.2 million and $359.4 million of the aggregate principal balance outstanding included in “Loans held for investment by the Company at fair value” were pledged as collateral for payables to securitization note and residual certificate holders, respectively. Additionally, $89.5 million and $62.1 million of the aggregate principal balance outstanding included in “Loans held for sale by the Company at fair value” at March 31, 2018 and December 31, 2017 , respectively, were pledged as collateral for the Company’s revolving warehouse credit facilities. See “Note 13. Debt” for additional information related to these debt obligations. The Company continues to evaluate the impact of natural disasters that occurred in 2017 on loans held by LendingClub and investors. Temporary relief measures on payment obligations have been provided to borrowers who reside in the affected areas. At March 31, 2018 and December 31, 2017 , $12.1 million and $14.0 million of loans issued prior to the natural disasters and invested in by the Company were to borrowers who reside in the affected areas, respectively. The Company continues to monitor performance of these loans. Loans that were 90 days or more past due (including non-accrual loans) were as follows: March 31, 2018 December 31, 2017 > 90 days past due and non-accrual loans (1) > 90 days past due Non-accrual loans (1) Loans held for investment and loans held for sale: Outstanding principal balance $ 27,477 $ 36,588 $ 3,289 Net fair value adjustments (22,558 ) (30,071 ) (2,675 ) Fair value $ 4,919 $ 6,517 $ 614 Number of loans (not in thousands) 2,852 3,779 591 Loans invested in by the Company: Outstanding principal balance $ 2,124 $ 1,015 $ 122 Net fair value adjustments (1,749 ) (861 ) (107 ) Fair value $ 375 $ 154 $ 15 Number of loans (not in thousands) 317 257 34 (1) Beginning in the first quarter of 2018, loans are placed on non-accrual status upon reaching 90 days past due. Prior to the first quarter of 2018, loans were placed on non-accrual status upon reaching 120 days past due. The effect of this change in estimate is immaterial. See “ Note 2. Summary of Significant Accounting Policies ” for additional information on the Company’s “Accrued Interest” accounting policy. Loan Servicing Rights Loans underlying loan servicing rights had a total outstanding principal balance of $8.6 billion and $8.2 billion as of March 31, 2018 and December 31, 2017 , respectively.

Securitization and Variable Int

Securitization and Variable Interest Entities	3 Months Ended
	Mar. 31, 2018
Transfers and Servicing [Abstract]
Securitization and Variable Interest Entities	Securitizations and Variable Interest Entities VIE Assets and Liabilities The Company has segregated its involvement with VIEs between those VIEs which are consolidated and those VIEs which are not consolidated. The following tables provide the classifications of assets and liabilities on the Company’s Condensed Consolidated Balance Sheets for its transactions with VIEs at March 31, 2018 and December 31, 2017 : March 31, 2018 Consolidated VIEs Unconsolidated VIEs Total Assets Restricted cash $ 45,998 $ — $ 45,998 Securities available for sale — 66,010 66,010 Loans held for investment at fair value 1,043,223 — 1,043,223 Loans held for investment by the Company at fair value 307,173 — 307,173 Loans held for sale by Company at fair value 86,156 — 86,156 Accrued interest receivable 12,387 789 13,176 Other assets 3,410 17,492 20,902 Total assets $ 1,498,347 $ 84,291 $ 1,582,638 Liabilities Accrued interest payable $ 11,196 $ — $ 11,196 Accrued expenses and other liabilities 836 — 836 Notes, certificates and secured borrowings at fair value 1,050,091 — 1,050,091 Payable to securitization note and residual certificate holders 280,915 — 280,915 Payable to revolving credit facilities 49,000 — 49,000 Total liabilities 1,392,038 — 1,392,038 Total net assets $ 106,309 $ 84,291 $ 190,600 December 31, 2017 Consolidated VIEs Unconsolidated VIEs Total Assets Restricted cash $ 34,370 $ — $ 34,370 Securities available for sale — 47,049 47,049 Loans held for investment at fair value 1,202,260 — 1,202,260 Loans held for investment by the Company at fair value 350,699 — 350,699 Loans held for sale by Company at fair value 60,812 — 60,812 Accrued interest receivable 15,602 407 16,009 Other assets 6,324 15,779 22,103 Total assets $ 1,670,067 $ 63,235 $ 1,733,302 Liabilities Accrued interest payable $ 14,789 $ — $ 14,789 Accrued expenses and other liabilities 52 300 352 Notes, certificates and secured borrowings at fair value 1,210,349 — 1,210,349 Payable to securitization note and residual certificate holders 312,123 — 312,123 Payable to revolving credit facilities 32,100 — 32,100 Total liabilities 1,569,413 300 1,569,713 Total net assets $ 100,654 $ 62,935 $ 163,589 Consolidated VIEs Trust Certificates The Company established the Trust for the purpose of acquiring and holding loans for the sole benefit of certain investors that have purchased trust certificates issued by the Trust based on its power to direct the activities that most significantly impact the economic outcomes of the Trust through involvement in the design and ongoing activities and significant variable interest held in the Trust. The Company consolidates the loans held and the certificates issued by the Trust as it is the primary beneficiary of the Trust. As the primary beneficiary of the Trust, the Company is obligated the ensure that the Trust meets minimum capital requirements with respect to funding the administrative activities and maintaining the operations of the Trust. Consolidated Securitizations The Company established LendingClub Operated Aggregator Note (LOAN) NP I, LLC, Depositor, Consumer Loan Underlying Bond Credit Trust 2017-P2, LLC (Credit Trust) and Consumer Loan Underlying Bond Grantor Trust 2017-P2, LLC (Grantor Trust) for the purpose of maintaining at least 5% ongoing interest to comply with regulatory credit risk retention rules in connection with securitizations of personal whole loans. The Company consolidates LOAN, Depositor, Credit Trust and Grantor Trust in its condensed consolidated financial statements as it holds a controlling financial interest and is the primary beneficiary. The Company is the primary beneficiary of LOAN, Depositor, Credit Trust and Grantor Trust based on its power to direct the activities that most significantly impact the economic outcomes of the securitizations through its role as sponsor and servicer and significant variable interests through its interests in these VIEs. Warehouse Credit Facilities The Company established LendingClub Warehouse I LLC (Warehouse I) and LendingClub Warehouse II LLC (Warehouse II) for the purpose of purchasing non-revolving personal whole loans from LendingClub, financing the purchase or acquisition of such assets through facility agreements and warehousing the assets for securitization or loan sales. The Company consolidates Warehouse I and Warehouse II in its condensed consolidated financial statements as it is the primary beneficiary. The Company is the primary beneficiary of Warehouse I and Warehouse II based on its power to direct the activities that most significantly impact the economic outcomes of the VIEs through role in the design and ongoing activities and significant variable interests held in the VIEs. The following table presents a summary of financial assets and liabilities from the Company’s involvement with consolidated VIEs at March 31, 2018 and December 31, 2017 : March 31, 2018 Assets Liabilities Net Assets Trust Certificates $ 1,063,936 $ (1,061,014 ) $ 2,922 Securitizations 330,530 (281,310 ) 49,220 Warehouse Credit Facilities 103,881 (49,714 ) 54,167 Total consolidated VIEs $ 1,498,347 $ (1,392,038 ) $ 106,309 December 31, 2017 Assets Liabilities Net Assets Trust Certificates $ 1,226,957 $ (1,224,473 ) $ 2,484 Securitizations 375,607 (312,832 ) 62,775 Warehouse Credit Facility 67,503 (32,108 ) 35,395 Total consolidated VIEs $ 1,670,067 $ (1,569,413 ) $ 100,654 The creditors of the VIEs above have no recourse to the general credit of the Company as the primary beneficiary of the VIEs and the liabilities of the VIEs can only be settled by the respective VIE’s assets. Unconsolidated VIEs The Company’s transactions with unconsolidated VIEs include securitizations of personal whole loans and sales of personal whole loans to investment funds sponsored by LCAM. The Company has various forms of involvement with VIEs, including servicing of loans, holding senior or subordinated interests, and serving as the investment manager for sponsored investment funds. The Company considers continued involvement in an unconsolidated VIE insignificant when it relates to third-party sponsored VIEs for which it was not the transferor, unless it is servicer and has other significant forms of involvement, or if it was the sponsor only or sponsor and servicer but does not have any other forms of significant involvement. In these instances, the Company’s involvement with the VIE is in the role as an agent and without significant participation in the economics of the VIE. Unconsolidated Securitizations The Company sponsors securitizations of unsecured personal whole loans through issuances of fixed-rate asset-backed securities, which are collateralized by loans transferred to a VIE. Securitizations typically involve the transfer of unsecured personal whole loans to these VIEs with the transfer accounted for as a sale. In addition, the Company enters into separate servicing agreements with the VIEs and holds at least 5% of the beneficial interests issued by the VIEs. In certain instances, the Company may service unsecured personal loan securitizations structured by third parties whose loans were transferred to the VIE by a party other than the Company. In the case of certain securitization transactions, the Company has also agreed to repurchase or substitute loans for which a borrower fails to make the first payment due under a loan. The Company has determined that the variable interests it holds with respect to the securitizations are not potentially significant to the VIE, and as such, the Company is not the primary beneficiary. CLUB Certificates The Company sponsors the sale of unsecured personal whole loans through issuance of pass-through securities called CLUB Certificates, which are collateralized by loans transferred to a VIE. In the fourth quarter of 2017, the Company introduced the CLUB Certificate, which is an instrument that trades in the over-the-counter market with a CUSIP. For each CLUB Certificate transaction, Consumer Loan Underlying Bond Certificate Issuer Trust I (Master Trust) establishes a series of the Master Trust (Series Trust). The CLUB Certificate transaction typically involves the transfer of unsecured personal whole loans to a Series Trust with the transfer accounted for as a sale. In addition, the Company enters into a servicing agreement with each applicable Series Trust and holds at least 5% of the beneficial interests issued by the Series Trust. The Company has determined that the variable interests it holds with respect to CLUB Certificates are not potentially significant to the VIE and as such, the Company is not the primary beneficiary. Investment Fund The Company has an equity investment in a holding company (Investment Fund) to a family of funds that purchases loans and interest in loans from 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. However, 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 its condensed consolidated financial statements. The following tables summarize unconsolidated VIEs with which the Company has significant continuing involvement, but is not the primary beneficiary at March 31, 2018 and December 31, 2017 : March 31, 2018 Carrying Value Total VIE Assets Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Net Assets Securitizations $ 1,087,108 $ 56,232 $ 738 $ 6,865 $ — $ 63,835 CLUB Certificates 192,565 9,778 51 1,678 — 11,507 Investment Fund 36,249 — — 8,949 — 8,949 Total unconsolidated VIEs $ 1,315,922 $ 66,010 $ 789 $ 17,492 $ — $ 84,291 March 31, 2018 Maximum Exposure to Loss Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Total Exposure Securitizations $ 56,232 $ 738 $ 6,865 $ — $ 63,835 CLUB Certificates 9,778 51 1,678 — 11,507 Investment Fund — — 8,949 — 8,949 Total unconsolidated VIEs $ 66,010 $ 789 $ 17,492 $ — $ 84,291 December 31, 2017 Carrying Value Total VIE Assets Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Net Assets Securitizations $ 863,589 $ 45,256 $ 391 $ 5,446 $ (300 ) $ 50,793 CLUB Certificates 36,833 1,793 16 315 — 2,124 Investment Fund 40,494 — — 10,018 — 10,018 Total unconsolidated VIEs $ 940,916 $ 47,049 $ 407 $ 15,779 $ (300 ) $ 62,935 December 31, 2017 Maximum Exposure to Loss Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Total Exposure Securitizations $ 45,256 $ 391 $ 5,446 $ 300 $ 51,393 CLUB Certificates 1,793 16 315 — 2,124 Investment Fund — — 10,018 — 10,018 Total unconsolidated VIEs $ 47,049 $ 407 $ 15,779 $ 300 $ 63,535 “Total VIE Assets” represents the remaining principal balance of loans held by unconsolidated VIEs with respect to securitizations and CLUB Certificates, and the net assets held by the investment fund using the most current information available. “Securities Available for Sale,” “Accrued Interest Receivable,” “Other Assets” and “Accrued Expenses and Other Liabilities” are the balances in the Company’s Condensed Consolidated Balance Sheets related to its involvement with the unconsolidated VIEs. “Other Assets” includes the Company’s servicing assets associated with loans transferred as part of securitizations and CLUB Certificates and the Company’s equity investment with respect to the Investment Fund. “Total Exposure” refers to the Company’s maximum exposure to loss from its involvement with unconsolidated VIEs. It represents estimated loss that would be incurred under severe, hypothetical circumstances, for which the Company believes the possibility is extremely remote, such as where the value of interests and any associated collateral declines to zero. Accordingly, this required disclosure is not an indication of expected losses. Personal Whole Loan Securitizations The Company securitizes certain prime and near-prime unsecured personal whole loans through asset-backed securitization transactions. The loans are facilitated through the Company’s lending marketplace with the Company and third-party whole loan investors contributing loans. In connection with the securitizations, the Company established VIEs to purchase the loans from the Company and third-party whole loan investors and simultaneously transferred the loans to a securitization trust with the transfer accounted for as a sale of financial assets. The assets are transferred into a trust such that the assets are legally isolated from the creditors of the Company and are not available to satisfy its obligations. These assets can only be used to settle obligations of the securitization trust or other securitization vehicles. During the three months ended March 31, 2018 , securitization trusts issued senior securities and subordinated residual certificates and Master Trust issued CLUB Certificates by the respective VIEs as consideration for the transferred loans. The VIEs sold 95% of the senior securities to third-party investors and then distributed the cash and the subordinated residual certificates to the Company and third-party whole loan investors. To comply with regulatory credit risk retention rules, the Company retained at least 5% of each of the senior securities, subordinated residual certificates and CLUB Certificates. Additionally, the Company’s continued involvement includes loan servicing responsibilities for which it receives servicing fees over the life of the underlying loans. The senior securities, subordinated residual certificates and CLUB Certificates are accounted for as securities available for sale. See “Part II – Item 8 –Financial Statements and Supplementary Data – Note 2. Summary of Significant Accounting Policies” and “ Note 8. Fair Value of Assets and Liabilities” in the Annual Report for additional information. The following table summarizes activity related to the unconsolidated personal whole loan securitizations and personal whole loan CLUB Certificates with the transfers accounted for as a sale on the Company’s condensed consolidated financial statements for the three months ended March 31, 2018 : Three Months Ended March 31, 2018 Personal Whole Loan Securitizations Personal Whole Loan CLUB Certificates Principal derecognized from loans securitized or sold $ 355,248 $ 161,875 Net gains (losses) recognized from loans securitized or sold $ 3,097 $ 1,457 Fair value of senior securities and subordinated certificates retained upon settlement (1) $ 18,493 $ 8,102 Cash proceeds from loans securitized or sold $ 283,272 $ 154,839 Cash proceeds from servicing and other administrative fees on loans securitized or sold $ 2,350 $ 135 Cash proceeds for interest received on senior securities and subordinated certificates $ 296 $ 82 (1) For personal whole loan securitizations, the Company retained senior securities of $15.1 million and subordinated certificates of $3.4 million . There were no activities related to Company-sponsored securitizations or CLUB Certificate transactions during the three months ended March 31, 2017 . Off-Balance Sheet Loans Off-balance sheet loans primarily relate to Company-sponsored securitization transactions and CLUB Certificate transactions for which the Company has some form of continuing involvement, including as servicer. Delinquent loans are comprised of loans 31 days or more past due, including non-accrual loans. For loans securitized, where servicing is the only form of continuing involvement, the Company would only experience a loss if it was required to repurchase a delinquent loan due to a breach in representations and warranties associated with our loan sale or servicing contracts. As of March 31, 2018 , the aggregate unpaid principal balance of the off-balance sheet loans pursuant to Company-sponsored securitization transactions and CLUB Certificate transactions was $1.3 billion , of which $34.2 million was 31 days or more past due. As of December 31, 2017 , the aggregate unpaid principal balance of the off-balance sheet loans pursuant to Company-sponsored securitization transactions and CLUB Certificate transactions was $900.4 million , of which $26.5 million was 31 days or more past due. Retained Interests from Unconsolidated VIEs The Company and other investors in the subordinated residual certificates have rights to cash flows after the investors holding the senior securities issued by the securitization trusts have first received their contractual cash flows. The investors and the securitization trusts have no recourse to the Company’s assets, and holders of the securities issued by the securitization trusts can look only to the assets of the securitization trusts that issued their securities for payment. The beneficial interests held by the Company and the Company’s majority-owned affiliate (MOA) are subject principally to the credit and prepayment risk stemming from the underlying personal whole loans. The Company holds a portion of each issuance of CLUB Certificates. Accordingly, the Company has exposure to the loans underlying this pass-through security. The following tables provide adverse changes to the fair value sensitivity of the senior securities, subordinated residual certificates and CLUB Certificates to changes in key assumptions at March 31, 2018 and December 31, 2017 : March 31, 2018 Asset-Backed Securities Related to Company-Sponsored Securitizations and CLUB Certificate Transactions Senior Subordinated Residual Certificates CLUB Certificates Fair value of interests held $ 45,881 $ 10,351 $ 9,778 Expected weighted-average life (in years) 0.7 1.6 1.3 Discount rates 100 basis point increase $ (442 ) $ (127 ) $ (119 ) 200 basis point increase $ (875 ) $ (250 ) $ (236 ) Expected credit loss rates on underlying loans 10% adverse change $ — $ (1,454 ) $ (171 ) 20% adverse change $ — $ (2,875 ) $ (308 ) Expected prepayment rates 10% adverse change $ — $ (507 ) $ (77 ) 20% adverse change $ — $ (988 ) $ (120 ) December 31, 2017 Asset-Backed Securities Related to Company-Sponsored Securitizations and CLUB Certificate Transactions Senior Subordinated Residual Certificates CLUB Certificates Fair value of interests held $ 37,020 $ 8,236 $ 1,793 Expected weighted-average life (in years) 1.0 1.5 1.4 Discount rates 100 basis point increase $ (326 ) $ (105 ) $ (41 ) 200 basis point increase $ (644 ) $ (208 ) $ (76 ) Expected credit loss rates on underlying loans 10% adverse change $ (1 ) $ (1,060 ) $ (15 ) 20% adverse change $ (2 ) $ (2,118 ) $ (25 ) Expected prepayment rates 10% adverse change $ (1 ) $ (265 ) $ (21 ) 20% adverse change $ (3 ) $ (513 ) $ (42 ) Secured Borrowings In October 2017, LCAM initiated the full wind down of six funds by redeeming the certificates issued to the funds and transferring the loan participations underlying the redeemed certificates to third party investors. The loan participation for two of the funds transferred did not meet the definition of participating interests because the Company provided a credit support agreement under which the investor has a recourse to the Company for credit losses in excess of certain minimum loss coverage hurdle. The transfer of the loan participations in these two funds was accounted for as secured borrowings and the underlying whole loans were not derecognized from the Company’s Condensed Consolidated Balance Sheets. The Company has elected the fair value option for the secured borrowings. As of March 31, 2018 , the fair value of the secured borrowings was $179.3 million secured by aggregate outstanding principal balance of $187.0 million included in “Loans held for investment by the Company at fair value” in the Condensed Consolidated Balance Sheets as of March 31, 2018 . As of December 31, 2017 , the fair value of the secured borrowings was $232.4 million secured by aggregate outstanding principal balance of $242.7 million included in “Loans held for investment by the Company at fair value” in the Condensed Consolidated Balance Sheets as of December 31, 2017 . Changes in the fair value of the secured borrowings are partially offset by the associated loan participations, and the net effect is changes in fair value of the credit support agreement through earnings. As of March 31, 2018 , the fair value of this credit support agreement was $2.7 million . As of December 31, 2017 , the fair value of this credit support agreement was $2.8 million . The fair value of the credit support agreement is equal to the present value of the probability-weighted estimate of expected payments over a range of charge-off scenarios. See “Note 6. Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings and Loan Servicing Rights” for additional information.

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	Fair Value of Assets and Liabilities For a description of the fair value hierarchy and the Company’s fair value methodologies, see “Part II – Item 8 –Financial Statements and Supplementary Data – Note 2. Summary of Significant Accounting Policies” in the Annual Report on Form 10-K. The Company records certain assets and liabilities at fair value as listed in the following tables. Financial Instruments, Assets and Liabilities Recorded at Fair Value The following tables present the fair value hierarchy for assets and liabilities measured at fair value at March 31, 2018 and December 31, 2017 : March 31, 2018 Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Loans held for investment $ — $ — $ 2,635,413 $ 2,635,413 Loans held for investment by the Company — — 317,458 317,458 Loans held for sale by the Company — — 248,344 248,344 Securities available for sale: Asset-backed senior securities related to Company-sponsored securitizations — 45,881 — 45,881 Certificates of deposit — 20,303 — 20,303 Corporate debt securities — 19,840 — 19,840 Asset-backed securities — 14,586 — 14,586 Commercial paper — 7,685 — 7,685 Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions — — 20,129 20,129 Total securities available for sale — 108,295 20,129 128,424 Servicing assets — — 40,884 40,884 Total assets $ — $ 108,295 $ 3,262,228 $ 3,370,523 Liabilities: Notes, certificates and secured borrowings $ — $ — $ 2,655,417 $ 2,655,417 Payable to securitization residual certificate holders — — 1,354 1,354 Servicing liabilities — — 475 475 Loan trailing fee liability — — 8,824 8,824 Total liabilities $ — $ — $ 2,666,070 $ 2,666,070 December 31, 2017 Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Assets: Loans held for investment $ — $ — $ 2,932,325 $ 2,932,325 Loans held for investment by the Company — — 361,230 361,230 Loans held for sale by the Company — — 235,825 235,825 Securities available for sale: Asset-backed senior securities related to Company-sponsored securitizations — 37,020 — 37,020 Certificates of deposit — 24,758 — 24,758 Corporate debt securities — 16,258 — 16,258 Asset-backed securities — 14,843 — 14,843 Commercial paper — 14,665 — 14,665 Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions — — 10,029 10,029 Total securities available for sale — 107,544 10,029 117,573 Servicing assets — — 33,676 33,676 Total assets $ — $ 107,544 $ 3,573,085 $ 3,680,629 Liabilities: Notes, certificates and secured borrowings $ — $ — $ 2,954,768 $ 2,954,768 Payable to securitization residual certificate holders — — 1,479 1,479 Servicing liabilities — — 833 833 Loan trailing fee liability — — 8,432 8,432 Total liabilities $ — $ — $ 2,965,512 $ 2,965,512 The Company has elected the fair value option for notes, certificates, and secured borrowings, payable to securitization residual certificate holders, and loan trailing fee liability. Beginning January 1, 2018, changes in the fair value of these financial liabilities caused by a change in the instrument-specific credit risk are reported in other comprehensive income (OCI). For the quarter ended March 31, 2018, the amount reported in OCI is zero because these financial liabilities are either payable only upon receipt of cash flows from underlying loans or secured by cash collateral. See “Adoption of New Accounting Standards” in “ Note 2. Summary of Significant Accounting Policies ” for further discussion. Financial instruments are categorized in the valuation hierarchy based on the significance of unobservable factors in the overall fair value measurement. Since the Company’s loans held for investment and related notes, certificates, and secured borrowings, loans held for sale, loan servicing rights, asset-backed securities related to consolidated VIEs, and loan trailing fee liability do not trade in an active market with readily observable prices, the Company uses significant unobservable inputs to measure the fair value of these assets and liabilities. These fair value estimates may also include observable, actively quoted components derived from external sources. As a result, changes in fair value for assets and liabilities within the Level 2 or Level 3 categories may include changes in fair value that were attributable to observable and unobservable inputs, respectively. The Company did not transfer any assets or liabilities in or out of Level 3 during the first quarter of 2018 or the year ended December 31, 2017 . Significant Unobservable Inputs The Company primarily uses a model to estimate the fair value of Level 3 instruments based on the present value of estimated future cash flows. This model uses inputs that are inherently judgmental and reflect our best estimates of the assumptions a market participant would use to calculate fair value. The following tables present quantitative information about the significant unobservable inputs used for the Company’s Level 3 fair value measurements at March 31, 2018 and December 31, 2017 : March 31, 2018 Loans Held for Investment, Loans Held for Sale, Notes, Certificates and Secured Borrowings (1) Asset-Backed Securities Related to Consolidated VIE Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 2.7 % 16.7 % 8.9 % 3.2 % 15.0 % 7.4 % Net cumulative expected loss rates (2)(4) 0.4 % 42.1 % 13.8 % 5.2 % 38.7 % 13.3 % Cumulative expected prepayment rates (2)(4) 11.3 % 52.3 % 31.3 % 25.7 % 34.2 % 30.3 % March 31, 2018 Servicing Assets/Liabilities Loan Trailing Fee Liability Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 3.4 % 16.5 % 8.9 % 3.4 % 16.5 % 9.2 % Net cumulative expected loss rates (2) 0.4 % 42.1 % 12.3 % 0.8 % 42.1 % 13.1 % Cumulative expected prepayment rates (2) 11.3 % 52.3 % 32.0 % 11.3 % 52.3 % 31.6 % Total market servicing rates (% per annum on outstanding principal balance) (3) 0.66 % 0.90 % 0.66 % N/A N/A N/A December 31, 2017 Loans Held for Investment, Loans Held for Sale, Notes, Certificates and Secured Borrowings (1) Asset-Backed Securities Related to Consolidated VIE Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.7 % 17.2 % 8.5 % 5.8 % 15.0 % 9.5 % Net cumulative expected loss rates (2) (4) 0.4 % 41.8 % 13.8 % 10.9 % 37.2 % 19.7 % Cumulative expected prepayment rates (2) (4) 11.3 % 51.0 % 31.6 % 28.3 % 33.7 % 30.5 % December 31, 2017 Servicing Assets/Liabilities Loan Trailing Fee Liability Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.9 % 17.1 % 8.8 % 1.9 % 17.1 % 8.9 % Net cumulative expected loss rates (2) 0.4 % 41.8 % 12.4 % 0.8 % 41.8 % 13.2 % Cumulative expected prepayment rates (2) 11.3 % 51.0 % 31.7 % 11.3 % 51.0 % 31.4 % Total market servicing rates (% per annum on outstanding principal balance) (3) 0.66 % 0.90 % 0.66 % N/A N/A N/A N/A Not applicable (1) Loans held for investment and loans held for sale include loans invested in by the Company. (2) Expressed as a percentage of the original principal balance of the loan, note or certificate, except for asset-backed securities. (3) Includes collection fees estimated to be paid to a hypothetical third-party servicer. (4) For asset-backed securities, expressed as a percentage of the outstanding collateral balance. At March 31, 2018 and December 31, 2017 , the discounted cash flow methodology used to estimate the note, certificate and secured borrowings’ fair values used the same projected net cash flows as their related loans. As demonstrated by the following tables, the fair value adjustments for loans held for investment and loans held for sale were largely offset by the fair value adjustments of the notes, certificates and secured borrowings due to the payment dependent design of the notes, certificates and secured borrowings and because the principal balances of the loans were close to the combined principal balances of the notes, certificates and secured borrowings. The following tables present additional information about Level 3 loans held for investment, loans held for sale, and notes, certificates and secured borrowings measured at fair value on a recurring basis for the first quarters of 2018 and 2017 : Loans Held For Investment Loans Held For Sale Notes, Certificates and Secured Borrowings Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Balance at December 31, 2017 $ 3,141,391 $ (209,066 ) $ 2,932,325 $ — $ — $ — $ 3,161,080 $ (206,312 ) $ 2,954,768 Purchases 292,114 9 292,123 1,133,277 (1,772 ) 1,131,505 — — — Issuances — — — — — — 292,461 — 292,461 Sales — — — (1,133,277 ) 835 (1,132,442 ) — — — Principal payments and retirements (500,949 ) — (500,949 ) — — — (503,710 ) 8 (503,702 ) Charge-offs (102,791 ) 102,791 — — — — (102,791 ) 102,791 — Recoveries — (17,459 ) (17,459 ) — — — — (17,459 ) (17,459 ) Change in fair value recorded in earnings — (70,627 ) (70,627 ) — 937 937 — (70,651 ) (70,651 ) Balance at March 31, 2018 $ 2,829,765 $ (194,352 ) $ 2,635,413 $ — $ — $ — $ 2,847,040 $ (191,623 ) $ 2,655,417 Loans Held For Investment Loans Held For Sale Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Balance at December 31, 2016 $ 4,547,138 $ (252,017 ) $ 4,295,121 $ — $ — $ — $ 4,572,912 $ (252,017 ) $ 4,320,895 Purchases 523,235 2 523,237 1,170,207 — 1,170,207 — — — Issuances — — — — — — 523,305 — 523,305 Sales — — — (1,170,207 ) — (1,170,207 ) — — — Principal payments and retirements (638,235 ) — (638,235 ) — — — (641,105 ) 2 (641,103 ) Charge-offs (136,810 ) 136,810 — — — — (136,810 ) 136,810 — Recoveries — (10,790 ) (10,790 ) — — — — (10,790 ) (10,790 ) Change in fair value recorded in earnings — (157,950 ) (157,950 ) — — — — (157,950 ) (157,950 ) Balance at March 31, 2017 $ 4,295,328 $ (283,945 ) $ 4,011,383 $ — $ — $ — $ 4,318,302 $ (283,945 ) $ 4,034,357 The following tables present additional information about Level 3 loans invested in by the Company measured at fair value on a recurring basis for the first quarters of 2018 and 2017 : Loans Held For Investment by the Company Loans Held For Sale by the Company Total Loans Invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Balance at December 31, 2017 $ 371,379 $ (10,149 ) $ 361,230 $ 242,273 $ (6,448 ) $ 235,825 $ 613,652 $ (16,597 ) $ 597,055 Purchases 1,496 (160 ) 1,336 791,675 (280 ) 791,395 793,171 (440 ) 792,731 Transfers (to) from loans held for investment (from) to loans held for sale 106 — 106 (106 ) — (106 ) — — — Sales — — — (742,732 ) 10,048 (732,684 ) (742,732 ) 10,048 (732,684 ) Principal payments and retirements (32,194 ) — (32,194 ) (30,418 ) — (30,418 ) (62,612 ) — (62,612 ) Charge-offs (1,172 ) 1,172 — (2,215 ) 2,215 — (3,387 ) 3,387 — Recoveries — (199 ) (199 ) — (12 ) (12 ) — (211 ) (211 ) Change in fair value recorded in earnings — (12,821 ) (12,821 ) — (15,656 ) (15,656 ) — (28,477 ) (28,477 ) Balance at March 31, 2018 $ 339,615 $ (22,157 ) $ 317,458 $ 258,477 $ (10,133 ) $ 248,344 $ 598,092 $ (32,290 ) $ 565,802 Loans Held For Investment by the Company Loans Held For Sale by the Company Total Loans Invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Balance at December 31, 2016 $ 18,515 $ (1,652 ) $ 16,863 $ 9,345 $ (297 ) $ 9,048 $ 27,860 $ (1,949 ) $ 25,911 Purchases 1,181 (6 ) 1,175 5,948 (1 ) 5,947 7,129 (7 ) 7,122 Sales — — — (4,229 ) 157 (4,072 ) (4,229 ) 157 (4,072 ) Principal payments and retirements (1,484 ) — (1,484 ) (1,180 ) — (1,180 ) (2,664 ) — (2,664 ) Charge-offs (1,288 ) 1,288 — (160 ) 160 — (1,448 ) 1,448 — Recoveries — (99 ) (99 ) — — — — (99 ) (99 ) Change in fair value recorded in earnings — (1,083 ) (1,083 ) — (334 ) (334 ) — (1,417 ) (1,417 ) Balance at March 31, 2017 $ 16,924 $ (1,552 ) $ 15,372 $ 9,724 $ (315 ) $ 9,409 $ 26,648 $ (1,867 ) $ 24,781 The following tables present additional information about Level 3 servicing assets and liabilities measured at fair value on a recurring basis for the first quarters of 2018 and 2017 : Three Months Ended March 31, 2018 Three Months Ended March 31, 2017 Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Fair value at beginning of period $ 33,676 $ 833 $ 21,398 $ 2,846 Issuances (1) 11,980 — 5,317 274 Change in fair value, included in investor fees (5,606 ) (358 ) (4,047 ) (809 ) Other net changes included in deferred revenue 834 — (308 ) — Fair value at end of period $ 40,884 $ 475 $ 22,360 $ 2,311 (1) Represents the gains or losses on sales of the related loans, recorded in other revenue. The following table presents additional information about Level 3 loan trailing fee liability measured at fair value on a recurring basis for the first quarters of 2018 and 2017 : Three Months Ended 2018 2017 Fair value at beginning of period $ 8,432 $ 4,913 Issuances 1,775 1,663 Cash payment of loan trailing fee (1,554 ) (826 ) Change in fair value, included in origination and servicing 171 64 Fair value at end of period $ 8,824 $ 5,814 Significant Recurring Level 3 Fair Value Asset and Liability Input Sensitivity Fair valuation adjustments are recorded through earnings related to Level 3 instruments for the first quarters of 2018 and 2017 . Certain unobservable inputs may (in isolation) have either a directionally consistent or opposite impact on the fair value of the financial instrument for a given change in that input. When multiple inputs are used within the valuation techniques for loans, notes, certificates and secured borrowings, servicing assets and liabilities, and loan trailing fee liability, a change in one input in a certain direction may be offset by an opposite change from another input. A specific loan that is projected to have larger future default losses than previously estimated has lower expected future cash flows over its remaining life, which reduces its estimated fair value. Conversely, a specific loan that is projected to have smaller future default losses than previously estimated has increased expected future cash flows over its remaining life, which increases its estimated fair value. The fair value sensitivity of loans invested in by the Company to adverse changes in key assumptions as of March 31, 2018 and December 31, 2017 are as follows: March 31, 2018 December 31, Fair value of loans invested in by the Company $ 565,802 $ 597,055 Expected weighted-average life (in years) 1.5 1.5 Discount rates 100 basis point increase $ (6,708 ) $ (7,449 ) 200 basis point increase $ (13,258 ) $ (14,715 ) Expected credit loss rates on underlying loans 10% adverse change $ (9,249 ) $ (10,090 ) 20% adverse change $ (18,356 ) $ (18,935 ) Expected prepayment rates 10% adverse change $ (2,355 ) $ (3,548 ) 20% adverse change $ (4,616 ) $ (5,894 ) The Company’s selection of the most representative market servicing rates for servicing assets and servicing liabilities is inherently judgmental. The Company reviews third-party servicing rates for its loans, loans in similar credit sectors, and market servicing benchmarking analyses provided by third-party valuation firms, when available. The table below shows the impact on the estimated fair value of servicing assets and liabilities, calculated using different market servicing rate assumptions as of March 31, 2018 and December 31, 2017 : March 31, 2018 December 31, 2017 Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Weighted-average market servicing rate assumptions 0.66 % 0.66 % 0.66 % 0.66 % Change in fair value from: Servicing rate increase by 0.10% $ (8,340 ) $ 154 $ (7,749 ) $ 233 Servicing rate decrease by 0.10% $ 8,343 $ (151 ) $ 7,760 $ (222 ) Financial Instruments, Assets, and Liabilities Not Recorded at Fair Value The following tables present the fair value hierarchy for financial instruments, assets, and liabilities not recorded at fair value at March 31, 2018 and December 31, 2017 : March 31, 2018 Carrying Amount Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Cash and cash equivalents (1) $ 405,078 $ — $ 405,078 $ — $ 405,078 Restricted cash 226,818 — 226,818 — 226,818 Servicer reserve receivable 5,895 — 5,895 — 5,895 Deposits 855 — 855 — 855 Total assets $ 638,646 $ — $ 638,646 $ — $ 638,646 Liabilities: Accrued expenses and other liabilities $ 14,014 $ — $ — $ 14,014 $ 14,014 Accounts payable 3,389 — 3,389 — 3,389 Payables to investors 108,247 — 108,247 — 108,247 Payable to securitization note holders 279,561 — 279,561 — 279,561 Payable to revolving credit facilities 74,000 — — 74,000 74,000 Total liabilities $ 479,211 $ — $ 391,197 $ 88,014 $ 479,211 (1) Carrying amount approximates fair value due to the short maturity of these financial instruments. December 31, 2017 Carrying Amount Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Cash and cash equivalents (1) $ 401,719 $ — $ 401,719 $ — $ 401,719 Restricted cash 242,570 — 242,570 — 242,570 Servicer reserve receivable 13,685 — 13,685 — 13,685 Deposits 855 — 855 — 855 Total assets $ 658,829 $ — $ 658,829 $ — $ 658,829 Liabilities: Accrued expenses and other liabilities $ 13,856 $ — $ — $ 13,856 $ 13,856 Accounts payable 11,151 — 11,151 — 11,151 Payables to investors 143,310 — 143,310 — 143,310 Payable to securitization note holders 310,644 — 310,644 — 310,644 Payable to revolving credit facilities 32,100 — — 32,100 32,100 Total liabilities $ 511,061 $ — $ 465,105 $ 45,956 $ 511,061 (1) Carrying amount approximates fair value due to the short maturity of these financial instruments.

Property, Equipment and Softwar

Property, Equipment and Software, net	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Property, Equipment and Software, Net	Property, Equipment and Software, Net Property, equipment and software, net, consist of the following: March 31, December 31, Internally developed software (1) $ 112,169 $ 107,370 Leasehold improvements 27,190 26,949 Computer equipment 21,391 20,324 Purchased software 8,151 8,284 Furniture and fixtures 7,613 7,567 Construction in progress 2,296 1,202 Total property, equipment and software 178,810 171,696 Accumulated depreciation and amortization (71,633 ) (69,763 ) Total property, equipment and software, net $ 107,177 $ 101,933 (1) Includes $12.4 million and $10.7 million in development in progress as of March 31, 2018 and December 31, 2017 , respectively. Depreciation and amortization expense on property, equipment and software was $10.3 million and $9.1 million for the first quarters of 2018 and 2017 , respectively.

Other Assets

Other Assets	3 Months Ended
	Mar. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets Other assets consist of the following: March 31, December 31, Loan servicing assets, at fair value $ 40,884 $ 33,676 Prepaid expenses 21,457 23,427 Accounts receivable 10,353 10,005 Insurance reimbursements receivable 9,550 52,119 Other investments 9,199 10,268 Servicer reserve receivable 5,895 13,685 Deferred financing costs 3,749 2,952 Receivable from investors 2,024 2,318 Other 3,759 7,828 Total other assets $ 106,870 $ 156,278

Intangible Assets and Goodwill

Intangible Assets and Goodwill	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets and Goodwill	Intangible Assets and Goodwill Intangible Assets Intangible assets net of accumulated amortization was $20.9 million and $21.9 million at March 31, 2018 and December 31, 2017 , respectively. Amortization expense associated with intangible assets for the first quarters of 2018 and 2017 was $1.0 million and $1.2 million , respectively. Goodwill Goodwill was $35.6 million at March 31, 2018 and December 31, 2017 , respectively. The Company has one reporting unit for goodwill impairment testing purposes, the patient and education finance (PEF) reporting unit. There were no goodwill impairment expenses recorded for the first quarters of 2018 and 2017 related to the PEF reporting unit. The Company’s annual goodwill impairment testing date is April 1.

Accrued Expenses and Other Liab

Accrued Expenses and Other Liabilities	3 Months Ended
	Mar. 31, 2018
Payables and Accruals [Abstract]
Accrued Expenses and Other Liabilities	Accrued Expenses and Other Liabilities Accrued expenses and other liabilities consist of the following: March 31, December 31, Contingent liabilities $ 101,889 $ 129,887 Accrued expenses 30,667 21,317 Accrued compensation 16,438 30,549 Transaction fee refund reserve 15,088 14,528 Deferred rent 14,831 14,734 Loan trailing fee liability, at fair value 8,824 8,432 Deferred revenue 4,315 3,415 Payable to issuing banks 1,015 1,894 Loan servicing liabilities, at fair value 475 833 Other 2,975 2,791 Total accrued expenses and other liabilities $ 196,517 $ 228,380

Debt

Debt	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Debt	Debt Revolving Credit Facilities Warehouse Credit Facility I On October 10, 2017 , the Company’s wholly-owned subsidiary, Warehouse I, entered into a warehouse credit agreement (Warehouse Credit Agreement I) with certain lenders for an aggregate $250.0 million secured revolving credit facility (Warehouse Credit Facility I). In connection with the Warehouse Credit Agreement I, Warehouse I entered into a security agreement with a large commercial bank as administrative agent and a national banking association as collateral trustee and paying agent. Proceeds under the Warehouse Credit Facility I may only be used to purchase certain unsecured consumer loans and related rights and documents from the Company and to pay fees and expenses related to the Warehouse Credit Facility I. The creditors of the Warehouse Credit Facility I have no recourse to the general credit of the Company. Proceeds of loans made under the Warehouse Credit Facility I may be borrowed, repaid and reborrowed until the earliest of October 10, 2019 or another event that constitutes a “Commitment Termination Date” under the Warehouse Credit Agreement I. Repayment of any outstanding proceeds is due on October 10, 2019 , but may be prepaid without penalty. Borrowings under the Warehouse Credit Facility I bear interest at an annual benchmark rate based on LIBOR rate plus a spread of 2.00% to 7.25% , or at an alternative commercial paper rate (which is the per annum rate equivalent to the weighted-average of the per annum rates at which all commercial paper notes issued by such lenders to fund advances or maintain its loan were sold, as defined in the credit agreement). Benchmark rate borrowings may be prepaid at any time without penalty. Interest is payable monthly. Additionally, the Company was required to pay an upfront commitment fee to the lenders of 0.75% of the initial $250.0 million available under the revolving loan facility and a monthly unused commitment fee of 0.50% per annum on the average undrawn portion available under the revolving loan facility. The Warehouse Credit Facility I and credit and security agreements contain certain covenants applicable to the Company, including restrictions on the Company’s ability to pay dividends, incur indebtedness, pledge assets, merge or consolidate, make investments, and enter into certain affiliate transactions. The Warehouse Credit Facility I also requires the Company to maintain a maximum total net leverage ratio (defined as the ratio of net debt to Adjusted EBITDA, on a consolidated basis for the four most recent Fiscal Quarter periods) of 3.25 :1.00 initially, and which decreases over the term of the Warehouse Credit Facility I to 3.00 :1.00 on and after June 30, 2018 (on a consolidated basis). As of March 31, 2018 and December 31, 2017 , the Company was in compliance with the total net leverage ratio requirements, calculated as defined in the Warehouse Credit Facility I. As of March 31, 2018 and December 31, 2017 , the Company had $12.0 million and $32.1 million , respectively, in debt outstanding under the Warehouse Credit Facility I secured by aggregate outstanding principal balance of $35.6 million and $62.1 million , respectively, included in “Loans held for sale by the Company at fair value” and restricted cash of $5.8 million and $4.1 million , respectively, included in the Condensed Consolidated Balance Sheets. The Company incurred $2.4 million of capitalized debt issuance costs, which will be recognized as interest expense through October 10, 2019 . Warehouse Credit Facility II On January 23, 2018 , LendingClub Warehouse II LLC (Warehouse II), a wholly-owned subsidiary of the Company, entered into a warehouse credit agreement (Warehouse Credit Agreement II) with certain lenders for an aggregate $200.0 million secured revolving credit facility (Warehouse Credit Facility II). In connection with Warehouse Credit Agreement II, Warehouse II entered into a security agreement with a large commercial bank as administrative agent and a national banking association as collateral trustee and paying agent. Proceeds under Warehouse Credit Facility II may only be used to purchase certain unsecured consumer loans and related rights and documents from the Company and to pay fees and expenses related to the Warehouse Credit Facility II. The creditors of the Warehouse Credit Facility II have no recourse to the general credit of the Company. Proceeds of loans made under the Warehouse Credit Facility II may be borrowed, repaid and reborrowed until the earliest of March 23, 2020 or another event that constitutes a “Commitment Termination Date” under the Warehouse Credit Agreement II. Repayment of any outstanding proceeds is due on March 23, 2020 , but may be prepaid without penalty. Borrowings under the Warehouse Credit Facility II bear interest at an annual benchmark rate based on LIBOR rate plus 1.00% plus used fee of 2.50% , or at an alternative commercial paper rate (which is the per annum rate equivalent to the weighted-average of the per annum rates at which all commercial paper notes issued by such lenders to fund advances or maintain its loan were sold, as defined in the credit agreement). Benchmark rate borrowings may be prepaid at any time without penalty. Interest is payable monthly. Additionally, the Company was required to pay an upfront commitment fee to the lenders of 0.485% of the initial $200.0 million available under the revolving loan facility and an unused commitment fee of up to 0.75% per annum based on utilization of the revolving loan facility. The Warehouse Credit Facility II and credit and security agreements contain certain covenants applicable to the Company, including restrictions on the Company’s ability to pay dividends, incur indebtedness, pledge assets, merge or consolidate, make investments, and enter into certain affiliate transactions. The Warehouse Credit Facility II also requires the Company to maintain a maximum total net leverage ratio (defined as the ratio of net debt to Adjusted EBITDA, on a consolidated basis for the four most recent Fiscal Quarter periods) of 3.25 :1.00 initially, and which decreases over the term of the Warehouse Credit Facility II to 3.00 :1.00 on and after June 30, 2018 (on a consolidated basis). As of March 31, 2018 , the Company was in compliance with the total net leverage ratio requirements, calculated as defined in the Warehouse Credit Facility II. As of March 31, 2018 , the Company had $37.0 million in debt outstanding under the Warehouse Credit Facility II secured by aggregate outstanding principal balance of $53.9 million included in “Loans held for sale by the Company at fair value” and restricted cash of $8.4 million included in the Condensed Consolidated Balance Sheets. The Company incurred $1.1 million of capitalized debt issuance costs, which will be recognized as interest expense through March 23, 2020 . Credit Facility On December 17, 2015 , the Company entered into a credit and guaranty agreement with several lenders for an aggregate $120.0 million unsecured revolving credit facility (Credit Facility). In connection with the credit agreement, the Company entered into a pledge and security agreement with Morgan Stanley Senior Funding, Inc., as collateral agent. Proceeds of loans made under the Credit Facility may be borrowed, repaid and reborrowed until December 17, 2020 . Repayment of any outstanding proceeds are payable on December 17, 2020 , but may be prepaid without penalty. Borrowings under the Credit Facility bear interest, at the Company’s option, at an annual rate based on LIBOR rate plus a spread of 1.75% to 2.00% , which is fixed for a Company-selected interest period of one, two, three, six or 12 months, or at an alternative base rate (which is tied to either the prime rate, federal funds effective rate, or the adjusted eurocurrency rate, as defined in the credit agreement). Base rate borrowings may be prepaid at any time without penalty, however pre-payment of LIBOR-based borrowings before the end of the selected interest period may result in the Company incurring expense to compensate the lenders for their funding costs through the end of the interest period. Interest is payable quarterly. Additionally, the Company is required to pay a quarterly commitment fee to the lenders of between 0.25% and 0.375% per annum, depending on the Company’s total net leverage ratio, on the average undrawn portion available under the revolving loan facility. The Credit Facility and pledge and security agreement contain certain covenants applicable to the Company, including restrictions on the Company’s ability to pay dividends, incur indebtedness, pledge our assets, merge or consolidate, make investments, and enter into certain affiliate transactions. The Credit Facility also requires the Company to maintain a maximum total net leverage ratio (defined as the ratio of net debt to Adjusted EBITDA, on a consolidated basis for the four most recent Fiscal Quarter periods) of 4.00 :1.00 initially, and which decreases over the term of the Credit Facility to 3.00 :1.00 on and after June 30, 2018 (on a consolidated basis). As of March 31, 2018 and December 31, 2017 , the Company was in compliance with the total net leverage ratio requirements, calculated as defined in the Credit Facility. The Company had $25.0 million in debt outstanding under the Credit Facility as of March 31, 2018 . The Company had no debt outstanding under the Credit Facility as of December 31, 2017 . In 2015, the Company incurred $1.3 million of capitalized debt issuance costs, which is being recorded as interest expense through December 17, 2020 . Payable to Securitization Note and Residual Certificate Holders On December 6, 2017 , the Company sponsored an asset-backed securities securitization transaction consisting of approximately $368.0 million in unsecured personal whole loans facilitated through the Company’s platform. In connection with this securitization, the Company’s Depositor purchased the loans and simultaneously transferred the loans to a securitization trust, which held the transferred loans and issued notes and residual certificates. The Depositor sold 95% of the notes to third party-investors for $310.5 million in net proceeds and then distributed cash and 4.1% of residual certificates to original whole loan investors. The securitization trust used to effect the transaction is a VIE that the Company consolidates because the Company is the primary beneficiary of the VIE. The notes and residual certificates held by third-party investors are classified as debt in the Company’s Condensed Consolidated Balance Sheets. The notes are carried at amortized cost. The associated debt issuance costs of $2.9 million are deferred and amortized into interest expense over the weighted-average contractual life of the notes. The Company has elected the fair value option for the residual certificates. The notes and residual certificates held by third-party investors, as well as unamortized debt issuance costs, are included in “Payable to securitization note and residual certificate holders” in the Condensed Consolidated Balance Sheets, and totaled $280.9 million and $312.1 million as of March 31, 2018 and December 31, 2017 , respectively. These liabilities are secured by aggregate outstanding principal balance of $328.2 million and $359.4 million included in “Loans held for investment by the Company at fair value” and restricted cash of $10.7 million and $18.7 million included in the Condensed Consolidated Balance Sheets as of March 31, 2018 and December 31, 2017 , respectively.

Secured Borrowings

Secured Borrowings	3 Months Ended
	Mar. 31, 2018
Receivables [Abstract]
Secured Borrowings	Securitizations and Variable Interest Entities VIE Assets and Liabilities The Company has segregated its involvement with VIEs between those VIEs which are consolidated and those VIEs which are not consolidated. The following tables provide the classifications of assets and liabilities on the Company’s Condensed Consolidated Balance Sheets for its transactions with VIEs at March 31, 2018 and December 31, 2017 : March 31, 2018 Consolidated VIEs Unconsolidated VIEs Total Assets Restricted cash $ 45,998 $ — $ 45,998 Securities available for sale — 66,010 66,010 Loans held for investment at fair value 1,043,223 — 1,043,223 Loans held for investment by the Company at fair value 307,173 — 307,173 Loans held for sale by Company at fair value 86,156 — 86,156 Accrued interest receivable 12,387 789 13,176 Other assets 3,410 17,492 20,902 Total assets $ 1,498,347 $ 84,291 $ 1,582,638 Liabilities Accrued interest payable $ 11,196 $ — $ 11,196 Accrued expenses and other liabilities 836 — 836 Notes, certificates and secured borrowings at fair value 1,050,091 — 1,050,091 Payable to securitization note and residual certificate holders 280,915 — 280,915 Payable to revolving credit facilities 49,000 — 49,000 Total liabilities 1,392,038 — 1,392,038 Total net assets $ 106,309 $ 84,291 $ 190,600 December 31, 2017 Consolidated VIEs Unconsolidated VIEs Total Assets Restricted cash $ 34,370 $ — $ 34,370 Securities available for sale — 47,049 47,049 Loans held for investment at fair value 1,202,260 — 1,202,260 Loans held for investment by the Company at fair value 350,699 — 350,699 Loans held for sale by Company at fair value 60,812 — 60,812 Accrued interest receivable 15,602 407 16,009 Other assets 6,324 15,779 22,103 Total assets $ 1,670,067 $ 63,235 $ 1,733,302 Liabilities Accrued interest payable $ 14,789 $ — $ 14,789 Accrued expenses and other liabilities 52 300 352 Notes, certificates and secured borrowings at fair value 1,210,349 — 1,210,349 Payable to securitization note and residual certificate holders 312,123 — 312,123 Payable to revolving credit facilities 32,100 — 32,100 Total liabilities 1,569,413 300 1,569,713 Total net assets $ 100,654 $ 62,935 $ 163,589 Consolidated VIEs Trust Certificates The Company established the Trust for the purpose of acquiring and holding loans for the sole benefit of certain investors that have purchased trust certificates issued by the Trust based on its power to direct the activities that most significantly impact the economic outcomes of the Trust through involvement in the design and ongoing activities and significant variable interest held in the Trust. The Company consolidates the loans held and the certificates issued by the Trust as it is the primary beneficiary of the Trust. As the primary beneficiary of the Trust, the Company is obligated the ensure that the Trust meets minimum capital requirements with respect to funding the administrative activities and maintaining the operations of the Trust. Consolidated Securitizations The Company established LendingClub Operated Aggregator Note (LOAN) NP I, LLC, Depositor, Consumer Loan Underlying Bond Credit Trust 2017-P2, LLC (Credit Trust) and Consumer Loan Underlying Bond Grantor Trust 2017-P2, LLC (Grantor Trust) for the purpose of maintaining at least 5% ongoing interest to comply with regulatory credit risk retention rules in connection with securitizations of personal whole loans. The Company consolidates LOAN, Depositor, Credit Trust and Grantor Trust in its condensed consolidated financial statements as it holds a controlling financial interest and is the primary beneficiary. The Company is the primary beneficiary of LOAN, Depositor, Credit Trust and Grantor Trust based on its power to direct the activities that most significantly impact the economic outcomes of the securitizations through its role as sponsor and servicer and significant variable interests through its interests in these VIEs. Warehouse Credit Facilities The Company established LendingClub Warehouse I LLC (Warehouse I) and LendingClub Warehouse II LLC (Warehouse II) for the purpose of purchasing non-revolving personal whole loans from LendingClub, financing the purchase or acquisition of such assets through facility agreements and warehousing the assets for securitization or loan sales. The Company consolidates Warehouse I and Warehouse II in its condensed consolidated financial statements as it is the primary beneficiary. The Company is the primary beneficiary of Warehouse I and Warehouse II based on its power to direct the activities that most significantly impact the economic outcomes of the VIEs through role in the design and ongoing activities and significant variable interests held in the VIEs. The following table presents a summary of financial assets and liabilities from the Company’s involvement with consolidated VIEs at March 31, 2018 and December 31, 2017 : March 31, 2018 Assets Liabilities Net Assets Trust Certificates $ 1,063,936 $ (1,061,014 ) $ 2,922 Securitizations 330,530 (281,310 ) 49,220 Warehouse Credit Facilities 103,881 (49,714 ) 54,167 Total consolidated VIEs $ 1,498,347 $ (1,392,038 ) $ 106,309 December 31, 2017 Assets Liabilities Net Assets Trust Certificates $ 1,226,957 $ (1,224,473 ) $ 2,484 Securitizations 375,607 (312,832 ) 62,775 Warehouse Credit Facility 67,503 (32,108 ) 35,395 Total consolidated VIEs $ 1,670,067 $ (1,569,413 ) $ 100,654 The creditors of the VIEs above have no recourse to the general credit of the Company as the primary beneficiary of the VIEs and the liabilities of the VIEs can only be settled by the respective VIE’s assets. Unconsolidated VIEs The Company’s transactions with unconsolidated VIEs include securitizations of personal whole loans and sales of personal whole loans to investment funds sponsored by LCAM. The Company has various forms of involvement with VIEs, including servicing of loans, holding senior or subordinated interests, and serving as the investment manager for sponsored investment funds. The Company considers continued involvement in an unconsolidated VIE insignificant when it relates to third-party sponsored VIEs for which it was not the transferor, unless it is servicer and has other significant forms of involvement, or if it was the sponsor only or sponsor and servicer but does not have any other forms of significant involvement. In these instances, the Company’s involvement with the VIE is in the role as an agent and without significant participation in the economics of the VIE. Unconsolidated Securitizations The Company sponsors securitizations of unsecured personal whole loans through issuances of fixed-rate asset-backed securities, which are collateralized by loans transferred to a VIE. Securitizations typically involve the transfer of unsecured personal whole loans to these VIEs with the transfer accounted for as a sale. In addition, the Company enters into separate servicing agreements with the VIEs and holds at least 5% of the beneficial interests issued by the VIEs. In certain instances, the Company may service unsecured personal loan securitizations structured by third parties whose loans were transferred to the VIE by a party other than the Company. In the case of certain securitization transactions, the Company has also agreed to repurchase or substitute loans for which a borrower fails to make the first payment due under a loan. The Company has determined that the variable interests it holds with respect to the securitizations are not potentially significant to the VIE, and as such, the Company is not the primary beneficiary. CLUB Certificates The Company sponsors the sale of unsecured personal whole loans through issuance of pass-through securities called CLUB Certificates, which are collateralized by loans transferred to a VIE. In the fourth quarter of 2017, the Company introduced the CLUB Certificate, which is an instrument that trades in the over-the-counter market with a CUSIP. For each CLUB Certificate transaction, Consumer Loan Underlying Bond Certificate Issuer Trust I (Master Trust) establishes a series of the Master Trust (Series Trust). The CLUB Certificate transaction typically involves the transfer of unsecured personal whole loans to a Series Trust with the transfer accounted for as a sale. In addition, the Company enters into a servicing agreement with each applicable Series Trust and holds at least 5% of the beneficial interests issued by the Series Trust. The Company has determined that the variable interests it holds with respect to CLUB Certificates are not potentially significant to the VIE and as such, the Company is not the primary beneficiary. Investment Fund The Company has an equity investment in a holding company (Investment Fund) to a family of funds that purchases loans and interest in loans from 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. However, 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 its condensed consolidated financial statements. The following tables summarize unconsolidated VIEs with which the Company has significant continuing involvement, but is not the primary beneficiary at March 31, 2018 and December 31, 2017 : March 31, 2018 Carrying Value Total VIE Assets Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Net Assets Securitizations $ 1,087,108 $ 56,232 $ 738 $ 6,865 $ — $ 63,835 CLUB Certificates 192,565 9,778 51 1,678 — 11,507 Investment Fund 36,249 — — 8,949 — 8,949 Total unconsolidated VIEs $ 1,315,922 $ 66,010 $ 789 $ 17,492 $ — $ 84,291 March 31, 2018 Maximum Exposure to Loss Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Total Exposure Securitizations $ 56,232 $ 738 $ 6,865 $ — $ 63,835 CLUB Certificates 9,778 51 1,678 — 11,507 Investment Fund — — 8,949 — 8,949 Total unconsolidated VIEs $ 66,010 $ 789 $ 17,492 $ — $ 84,291 December 31, 2017 Carrying Value Total VIE Assets Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Net Assets Securitizations $ 863,589 $ 45,256 $ 391 $ 5,446 $ (300 ) $ 50,793 CLUB Certificates 36,833 1,793 16 315 — 2,124 Investment Fund 40,494 — — 10,018 — 10,018 Total unconsolidated VIEs $ 940,916 $ 47,049 $ 407 $ 15,779 $ (300 ) $ 62,935 December 31, 2017 Maximum Exposure to Loss Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Total Exposure Securitizations $ 45,256 $ 391 $ 5,446 $ 300 $ 51,393 CLUB Certificates 1,793 16 315 — 2,124 Investment Fund — — 10,018 — 10,018 Total unconsolidated VIEs $ 47,049 $ 407 $ 15,779 $ 300 $ 63,535 “Total VIE Assets” represents the remaining principal balance of loans held by unconsolidated VIEs with respect to securitizations and CLUB Certificates, and the net assets held by the investment fund using the most current information available. “Securities Available for Sale,” “Accrued Interest Receivable,” “Other Assets” and “Accrued Expenses and Other Liabilities” are the balances in the Company’s Condensed Consolidated Balance Sheets related to its involvement with the unconsolidated VIEs. “Other Assets” includes the Company’s servicing assets associated with loans transferred as part of securitizations and CLUB Certificates and the Company’s equity investment with respect to the Investment Fund. “Total Exposure” refers to the Company’s maximum exposure to loss from its involvement with unconsolidated VIEs. It represents estimated loss that would be incurred under severe, hypothetical circumstances, for which the Company believes the possibility is extremely remote, such as where the value of interests and any associated collateral declines to zero. Accordingly, this required disclosure is not an indication of expected losses. Personal Whole Loan Securitizations The Company securitizes certain prime and near-prime unsecured personal whole loans through asset-backed securitization transactions. The loans are facilitated through the Company’s lending marketplace with the Company and third-party whole loan investors contributing loans. In connection with the securitizations, the Company established VIEs to purchase the loans from the Company and third-party whole loan investors and simultaneously transferred the loans to a securitization trust with the transfer accounted for as a sale of financial assets. The assets are transferred into a trust such that the assets are legally isolated from the creditors of the Company and are not available to satisfy its obligations. These assets can only be used to settle obligations of the securitization trust or other securitization vehicles. During the three months ended March 31, 2018 , securitization trusts issued senior securities and subordinated residual certificates and Master Trust issued CLUB Certificates by the respective VIEs as consideration for the transferred loans. The VIEs sold 95% of the senior securities to third-party investors and then distributed the cash and the subordinated residual certificates to the Company and third-party whole loan investors. To comply with regulatory credit risk retention rules, the Company retained at least 5% of each of the senior securities, subordinated residual certificates and CLUB Certificates. Additionally, the Company’s continued involvement includes loan servicing responsibilities for which it receives servicing fees over the life of the underlying loans. The senior securities, subordinated residual certificates and CLUB Certificates are accounted for as securities available for sale. See “Part II – Item 8 –Financial Statements and Supplementary Data – Note 2. Summary of Significant Accounting Policies” and “ Note 8. Fair Value of Assets and Liabilities” in the Annual Report for additional information. The following table summarizes activity related to the unconsolidated personal whole loan securitizations and personal whole loan CLUB Certificates with the transfers accounted for as a sale on the Company’s condensed consolidated financial statements for the three months ended March 31, 2018 : Three Months Ended March 31, 2018 Personal Whole Loan Securitizations Personal Whole Loan CLUB Certificates Principal derecognized from loans securitized or sold $ 355,248 $ 161,875 Net gains (losses) recognized from loans securitized or sold $ 3,097 $ 1,457 Fair value of senior securities and subordinated certificates retained upon settlement (1) $ 18,493 $ 8,102 Cash proceeds from loans securitized or sold $ 283,272 $ 154,839 Cash proceeds from servicing and other administrative fees on loans securitized or sold $ 2,350 $ 135 Cash proceeds for interest received on senior securities and subordinated certificates $ 296 $ 82 (1) For personal whole loan securitizations, the Company retained senior securities of $15.1 million and subordinated certificates of $3.4 million . There were no activities related to Company-sponsored securitizations or CLUB Certificate transactions during the three months ended March 31, 2017 . Off-Balance Sheet Loans Off-balance sheet loans primarily relate to Company-sponsored securitization transactions and CLUB Certificate transactions for which the Company has some form of continuing involvement, including as servicer. Delinquent loans are comprised of loans 31 days or more past due, including non-accrual loans. For loans securitized, where servicing is the only form of continuing involvement, the Company would only experience a loss if it was required to repurchase a delinquent loan due to a breach in representations and warranties associated with our loan sale or servicing contracts. As of March 31, 2018 , the aggregate unpaid principal balance of the off-balance sheet loans pursuant to Company-sponsored securitization transactions and CLUB Certificate transactions was $1.3 billion , of which $34.2 million was 31 days or more past due. As of December 31, 2017 , the aggregate unpaid principal balance of the off-balance sheet loans pursuant to Company-sponsored securitization transactions and CLUB Certificate transactions was $900.4 million , of which $26.5 million was 31 days or more past due. Retained Interests from Unconsolidated VIEs The Company and other investors in the subordinated residual certificates have rights to cash flows after the investors holding the senior securities issued by the securitization trusts have first received their contractual cash flows. The investors and the securitization trusts have no recourse to the Company’s assets, and holders of the securities issued by the securitization trusts can look only to the assets of the securitization trusts that issued their securities for payment. The beneficial interests held by the Company and the Company’s majority-owned affiliate (MOA) are subject principally to the credit and prepayment risk stemming from the underlying personal whole loans. The Company holds a portion of each issuance of CLUB Certificates. Accordingly, the Company has exposure to the loans underlying this pass-through security. The following tables provide adverse changes to the fair value sensitivity of the senior securities, subordinated residual certificates and CLUB Certificates to changes in key assumptions at March 31, 2018 and December 31, 2017 : March 31, 2018 Asset-Backed Securities Related to Company-Sponsored Securitizations and CLUB Certificate Transactions Senior Subordinated Residual Certificates CLUB Certificates Fair value of interests held $ 45,881 $ 10,351 $ 9,778 Expected weighted-average life (in years) 0.7 1.6 1.3 Discount rates 100 basis point increase $ (442 ) $ (127 ) $ (119 ) 200 basis point increase $ (875 ) $ (250 ) $ (236 ) Expected credit loss rates on underlying loans 10% adverse change $ — $ (1,454 ) $ (171 ) 20% adverse change $ — $ (2,875 ) $ (308 ) Expected prepayment rates 10% adverse change $ — $ (507 ) $ (77 ) 20% adverse change $ — $ (988 ) $ (120 ) December 31, 2017 Asset-Backed Securities Related to Company-Sponsored Securitizations and CLUB Certificate Transactions Senior Subordinated Residual Certificates CLUB Certificates Fair value of interests held $ 37,020 $ 8,236 $ 1,793 Expected weighted-average life (in years) 1.0 1.5 1.4 Discount rates 100 basis point increase $ (326 ) $ (105 ) $ (41 ) 200 basis point increase $ (644 ) $ (208 ) $ (76 ) Expected credit loss rates on underlying loans 10% adverse change $ (1 ) $ (1,060 ) $ (15 ) 20% adverse change $ (2 ) $ (2,118 ) $ (25 ) Expected prepayment rates 10% adverse change $ (1 ) $ (265 ) $ (21 ) 20% adverse change $ (3 ) $ (513 ) $ (42 ) Secured Borrowings In October 2017, LCAM initiated the full wind down of six funds by redeeming the certificates issued to the funds and transferring the loan participations underlying the redeemed certificates to third party investors. The loan participation for two of the funds transferred did not meet the definition of participating interests because the Company provided a credit support agreement under which the investor has a recourse to the Company for credit losses in excess of certain minimum loss coverage hurdle. The transfer of the loan participations in these two funds was accounted for as secured borrowings and the underlying whole loans were not derecognized from the Company’s Condensed Consolidated Balance Sheets. The Company has elected the fair value option for the secured borrowings. As of March 31, 2018 , the fair value of the secured borrowings was $179.3 million secured by aggregate outstanding principal balance of $187.0 million included in “Loans held for investment by the Company at fair value” in the Condensed Consolidated Balance Sheets as of March 31, 2018 . As of December 31, 2017 , the fair value of the secured borrowings was $232.4 million secured by aggregate outstanding principal balance of $242.7 million included in “Loans held for investment by the Company at fair value” in the Condensed Consolidated Balance Sheets as of December 31, 2017 . Changes in the fair value of the secured borrowings are partially offset by the associated loan participations, and the net effect is changes in fair value of the credit support agreement through earnings. As of March 31, 2018 , the fair value of this credit support agreement was $2.7 million . As of December 31, 2017 , the fair value of this credit support agreement was $2.8 million . The fair value of the credit support agreement is equal to the present value of the probability-weighted estimate of expected payments over a range of charge-off scenarios. See “Note 6. Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings and Loan Servicing Rights” for additional information.

Employee Incentive Plans

Employee Incentive Plans	3 Months Ended
	Mar. 31, 2018
Postemployment Benefits [Abstract]
Employee Incentive Plans	Employee Incentive Plans The Company’s equity incentive plans provide for granting stock options and restricted stock units (RSUs) to employees, consultants, officers and directors. Stock-based compensation expense was as follows for the periods presented: Three Months Ended 2018 2017 Stock options $ 2,567 $ 4,345 RSUs 14,793 14,634 ESPP 441 385 Stock issued related to acquisition — 134 Total stock-based compensation expense $ 17,801 $ 19,498 The following table presents the Company’s stock-based compensation expense recorded in the Condensed Consolidated Statements of Operations: Three Months Ended 2018 2017 Sales and marketing $ 1,860 $ 2,299 Origination and servicing 1,072 1,416 Engineering and product development 5,279 6,588 Other general and administrative 9,590 9,195 Total stock-based compensation expense $ 17,801 $ 19,498 The Company capitalized $2.2 million and $2.5 million of stock-based compensation expense associated with developing software for internal use during the first quarters of 2018 and 2017 , respectively. Performance-based Restricted Stock Units During the first quarter of 2018, the Company granted its chief executive officer and chief financial officer performance-based restricted stock units (PBRSUs). PBRSUs are equity awards that may be earned based on achieving certain pre-established performance metrics over a specific performance period. Depending on the probability of achieving the pre-established performance targets, the PBRSUs issued could range from 0% to 200% of the target amount. PBRSUs granted under the Company’s equity incentive plans generally have a one -year performance period with one-half of the grant vesting over one -year following the completion of the performance period and the remaining one-half vesting over two -years following the completion of the performance period. Over the performance period, the number of PBRSUs that may be earned and the related stock-based compensation expense that is recognized is adjusted upward or downward based upon the probability of achieving the pre-established performance targets against the performance metrics.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company continues to recognize a full valuation allowance against net deferred tax assets. This determination was based on the assessment of the available positive and negative evidence to estimate if sufficient future taxable income will be generated to utilize the existing deferred tax assets.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Operating Lease Commitments Total facilities rental expense for the first quarters of 2018 and 2017 was $4.3 million and $3.8 million , respectively. Sublease rental income for the first quarter of 2018 was $0.1 million . The Company had no sublease rental income for the first quarter of 2017 . Minimum lease payments for the first quarters of 2018 and 2017 were $4.0 million and $3.6 million , respectively. As of March 31, 2018 , the Company pledged $0.8 million of cash and $5.5 million in letters of credit as security deposits in connection with its lease agreements. The Company’s future minimum payments under non-cancelable operating leases in excess of one year and anticipated sublease income as of March 31, 2018 , were as follows: Operating Leases Subleases Net 2018 $ 12,372 $ (233 ) $ 12,139 2019 16,626 (39 ) 16,587 2020 17,557 — 17,557 2021 17,844 — 17,844 2022 13,519 — 13,519 Thereafter 32,645 — 32,645 Total $ 110,563 $ (272 ) $ 110,291 Loan Purchase Obligation Under the Company’s loan account program with WebBank, which serves as the Company’s primary issuing bank, WebBank retains ownership of the loans it originates that are facilitated through the Company’s lending marketplace for two business days after origination. As part of this arrangement, the Company is committed to purchase the loans at par plus accrued interest, at the conclusion of the two business days. As of March 31, 2018 and December 31, 2017 , the Company was committed to purchase loans with an outstanding principal balance of $53.2 million and $54.2 million at par, respectively. Loan Repurchase Obligations The Company is generally required to repurchase loans, notes or certificates in events of verified identity theft. The Company may also repurchase certain loans, notes or certificates in connection with certain customer accommodations. In connection with certain whole loan and CLUB Certificate sales, as well as to facilitate access to securitization markets, the Company has agreed to repurchase loans if representations and warranties made with respect to such loans are breached, and such breach has a material adverse effect on the loans. In the case of certain securitization transactions, the Company has also agreed to repurchase or substitute loans for which a borrower fails to make the first payment due under a loan. The Company believes such provisions are customary and consistent with institutional loan and securitization market standards. In addition to and distinct from the repurchase obligations described in the preceding paragraph, the Company performs certain administrative functions for a variety of retail and institutional investors, including executing, without discretion, loan investments as directed by the investor. To the extent loans do not meet the investor’s investment criteria at the time of issuance, or are transferred to the investor as a result of a system error by the Company, the Company repurchases such loans, notes or certificates at par. As a result of the loan repurchase obligations described above, the Company repurchased $1.6 million and $0.9 million in loans, notes and certificates during the first quarters of 2018 and 2017 , respectively. Purchase Commitments As required by applicable regulations, the Company must make firm offers of credit as a result of pre-approval direct mail it sends out, where the consumers continue to meet the credit worthiness criteria which were used to screen them. If such loans are accepted by the applicants but not otherwise funded by investors on the platform, the Company is required to provide funding for the loans. The Company was not required to purchase any such loans during the first quarter of 2018 . Additionally, loans in the process of being facilitated through the Company’s platform and originated by the Company’s issuing bank partner at March 31, 2018 , were substantially funded in April 2018 . As of the date of this report, no loans remained without investor commitments and the Company was not required to purchase any of these loans. In addition, if neither Springstone nor the Company can arrange for other investors to invest in or purchase loans that Springstone facilitates and that are originated by an issuing bank partner but do not meet the credit criteria for purchase by the issuing bank partner (Pool B loans), Springstone and the Company are contractually committed to purchase these loans. As of March 31, 2018 and December 31, 2017 , the Company had a $9.0 million deposit in a bank account to secure potential future purchases of these loans, if necessary. The funds are recorded as restricted cash on the Company’s Condensed Consolidated Balance Sheets. During the first quarter of 2018 , the Company was not required to purchase Pool B loans. Pool B loans are held on the Company’s Condensed Consolidated Balance Sheets and have an outstanding principal balance and fair value of $17.3 million and $15.5 million as of March 31, 2018 , respectively, and $20.1 million and $18.2 million as of December 31, 2017 , respectively. The Company believes it will be required to purchase additional Pool B loans during 2018 as it seeks to arrange for other investors to invest in or purchase these loans. Credit Support Agreement The Company is subject to a credit support agreement with Cirrix Capital (Investment Fund). The credit support agreement requires the Company to pledge and restrict cash in support of its contingent obligation to reimburse the Investment Fund for net credit losses on loans underlying the Investment Fund’s certificates that are in excess of a specified, aggregate net loss threshold. On April 14, 2017, the credit support agreement was terminated effective December 31, 2016. However, the Company remains subject to the credit support agreement for credit losses on loans underlying the Investment Fund’s certificates that were issued on or prior to December 31, 2016. The Company pledged and restricted cash in the amount of $2.2 million and $2.2 million as of March 31, 2018 and December 31, 2017 , respectively, to support this contingent obligation. The Company’s maximum exposure to loss under this credit support agreement was limited to $6.0 million as of March 31, 2018 and December 31, 2017 , for which no liability has been accrued as of March 31, 2018 or December 31, 2017 . Legal The Company is subject to various claims brought in a litigation or regulatory context. The Company is defending against, and is in the process of settling certain significant class action and derivative lawsuits filed in 2016; continues to address federal regulatory actions relating to and arising from the internal board review described more fully in “ Management’s Discussion and Analysis of Financial Condition and Results of Operations – Board Review ” contained in Part II, Item 7 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 (the Board Review); continues to address federal and state regulatory examinations and actions relating to the Company’s business practices and licensing; and is a party to a number of routine litigation matters arising in the ordinary course of business. The majority of these claims and proceedings relate to or arise from alleged state or federal law and regulatory violations, or are alleged commercial disputes and alleged consumer complaints. The Company accrues for costs related to contingencies when a loss from such claims is probable and the amount of loss can be reasonably estimated. In determining whether a loss from a claim is probable and if it is possible to estimate the loss, the Company reviews and evaluates its litigation and regulatory matters on at least a quarterly basis in light of potentially relevant factual and legal developments. If the Company determines an unfavorable outcome is not probable or the amount of loss cannot be reasonably estimated, the Company does not accrue for a potential litigation loss. In those situations, the Company discloses an estimate of the probable losses or a range of possible losses, if such estimates can be made. Except as otherwise specifically noted below, at this time, the Company does not believe that it is possible to estimate the reasonably possible losses or a range of reasonably possible losses related to the matters described below. Settlement of Class Action Filed In 2016 During the year ended December 31, 2016, several putative class action lawsuits alleging violations of federal securities laws were filed in California Superior Court, naming as defendants the Company, current and former directors, certain officers, and the underwriters in the December 2014 initial public offering (the IPO). All of these actions were consolidated into a single action (Consolidated State Court Action), entitled In re LendingClub Corporation Shareholder Litigation , No. CIV537300. In August 2016, plaintiffs filed an amended complaint alleging violations of Sections 11, 12(a)(2) and 15 of the Securities Act of 1933 (Securities Act) based on allegedly false and misleading statements in the IPO registration statement and prospectus. Following multiple demurrers, which were granted in part and denied in part, the Plaintiffs filed a Second Amended Consolidated Complaint, which became the operative pleading. In April 2017 the plaintiffs filed their motion for class certification, which the Company opposed. The motion was granted in part in a June 2017 Order. The Court set the trial date for October 2018. In May 2016, two related putative securities class actions (entitled Evellard v. LendingClub Corporation, et al. , No. 16-CV-2627-WHA, and Wertz v. LendingClub Corporation, et al. , No. 16-CV-2670-WHA) were filed in the United States District Court for the Northern District of California, naming as defendants the Company and certain of its officers and directors; these matters were subsequently consolidated into a single action. The Company moved to dismiss the amended complaint filed in the fourth quarter of 2016. The Court held a hearing on this motion in the first quarter of 2017 and ultimately granted in part and denied in part the motion. The plaintiffs thereafter amended their complaint consistent with the May 2017 Order and the parties began discovery. In September 2017 the plaintiffs filed their motion for class certification, which the Company opposed. The motion was granted in an October 2017 Order. In that Order, the Court also granted a motion by the plaintiffs in the Consolidated State Court Action to intervene in the federal action. Following court-ordered mediation in November 2017 and January 2018, the Company agreed to a preliminary settlement in which the Company would pay a total of $125.0 million in exchange for a dismissal of both the federal and state securities class actions with prejudice. Of that amount, $47.75 million will be paid from insurance. The Court issued an order granting preliminary approval of the settlement on March 16, 2018 and has set a hearing for final approval of the settlement for July 19, 2018. To satisfy the payment obligations, insurance carriers directly paid $38.2 million to a settlement administrator in March 2018 and an additional $9.6 million in April 2018. The Company paid $14.75 million to the settlement administrator in April 2018 and expects to pay the remaining $62.5 million in July 2018. In the event the settlement is approved, these matters will be dismissed with prejudice and settlement proceeds will be distributed to members of the impacted class. In the event that this or any other settlement is not approved, the matter will continue to proceed to trial and the Company will continue to vigorously defend against the claims. The Company was self-insured for the deductible amount under its director and officers’ liability insurance policy for these matters. The Company exceeded the deductible in 2016 and was reimbursed by insurance carriers for costs related to the litigations and investigations prior to the settlement. As a result of such reimbursed costs and the amount to be paid in the settlement, the policy limits under available insurance policies have been exhausted. Derivative Lawsuits . In May 2016 and August 2016, respectively, two putative shareholder derivative actions were filed ( Avila v. Laplanche, et al. , No. CIV538758 and Dua v. Laplanche, et al. , CGC-16-553731) against certain of the Company’s current and former officers and directors and naming the Company as a nominal defendant. Both actions were voluntarily dismissed without prejudice. On December 14, 2016, a new putative shareholder derivative action was filed in the Delaware Court of Chancery ( Steinberg, et al. v. Morris, et al., C.A. No. 12984-CB), against certain of the Company’s current and former officers and directors and naming the Company as a nominal defendant. In addition, on August 18, 2017, another putative shareholder derivative action was filed in the Delaware Court of Chancery ( Fink et. al. v. Laplanche, et. al., Case No. 2017-0600). These matters arise from claims that the Board allegedly breached its fiduciary duty by failing to provide adequate oversight over the Company’s practices and procedures, and purports to plead derivative claims under Delaware law and federal securities law. The court ultimately consolidated the cases, selecting the Steinberg plaintiffs as lead plaintiffs, and designating the Steinberg complaint as the operative complaint. On November 6, 2017, a new putative shareholder derivative action was filed in the Northern District of California ( Sawyer v. Sanborn, et al., No. 3:17-cv-06447), against certain of the Company’s current and former officers and directors and naming the Company as a nominal defendant. This action is based on allegations similar to those in the securities class action litigation, as described above. The plaintiffs in the Steinberg action will be permitted to join with the plaintiffs in the Sawyer action for the purposes of settlement. The court in the Sawyer action concurrently ordered all parties (including the intervening Steinberg plaintiffs) to participate in a mediation on May 15, 2018. It is not possible for the Company to predict the outcome of either the derivative litigation or the upcoming mediation. Regulatory Investigations Following the Board Review On May 9, 2016, following the announcement of the Board Review, the Company received a grand jury subpoena from the U.S. Department of Justice (DOJ). The Company also received formal requests for information from the SEC. The DOJ and the SEC are investigating matters related to the subject of the Company’s Board Review and statements made in the Company’s public filings. The Company continues cooperating with the DOJ and SEC in their ongoing investigations, including with respect to the potential settlement of these matters and other governmental or regulatory authorities or agencies. No assurance can be given that settlement with the DOJ or SEC can be reached or as to the timing or outcome of these matters. However, to the extent that the Company continues to incur expenses to defend or respond to these investigations, insurance policy coverage limits under the Company’s 2016 policies have been exhausted, as described above, so that the Company will likely have no insurance available to offset any additional costs. FTC Lawsuit In 2016, the Company received a formal request for information from the Federal Trade Commission (the FTC). The FTC commenced an investigation concerning certain of the Company’s policies and practices and related legal compliance. On April 25, 2018, the FTC filed a lawsuit in the Northern District of California (FTC v. LendingClub Corporation, No. 3:18-cv-02454) alleging causes of action for violations of the FTC Act, including deception in connection with disclosures related to the Company’s origination fees and certainty of loan approval, unfairness in making unauthorized charges to borrowers’ bank accounts and violation of the Gramm-Leach-Bliley Act regarding the Company’s practices in delivering its privacy notice. While the Company is not able to predict with certainty the timing, outcome, or consequence of this litigation, it believes that it has been in compliance with all applicable federal and state laws related to this matter and will vigorously defend the lawsuit. In addition, while the Company believes that the facts underlying these regulatory matters are well known and understood, as these matters are resolved the Company is subject to further claims. Regulatory Action by the State of Massachusetts The Massachusetts Division of Banks (Massachusetts DOB) had been examining the activities of the Company and its subsidiary, Springstone Financial, including whether: (i) Springstone Financial lacked a valid small loan company license; and (ii) whether the Company should have obtained a servicing license. The Company has resolved these matters with the Massachusetts DOB, resulting in a payment of an amount that is not material to the Company. Regulatory Examinations and Actions Relating to the Company’s Business Practices and Licensing The Company has been subject to periodic inquiries and enforcement actions brought by federal and state regulatory agencies relating to the Company’s business practices, the required licenses to operate its business and its manner of operating in accordance with the requirements of its licenses. In the past, the Company has successfully resolved inquiries in a manner that was not material to its results of financial operations in any period and that did not materially limit the Company’s ability to conduct its business. At the state level, the Company is currently in discussions with the Colorado Department of Law (the CDL) concerning the licenses required for the Company’s servicing operations and the structure of its offerings in the State of Colorado. No assurance can be given as to the timing or outcome of the CDL inquiry or any other matters. In addition, the Company has also responded to inquiries from the California Department of Business Oversight and the New York Department of Financial Services regarding the operation of the Company’s business and the overall “FinTech” industry, but to date has received no indication that these inquiries will lead to any enforcement or other actions. Putative Class Actions In December 2017, a putative class action lawsuit was filed against the Company in the State of Nevada (Moses v. Lending Club , 2:17-cv-03071-JAD-PAL) alleging violations of the federal Fair Credit Reporting Act. The complaint alleges that the Company improperly accessed the credit report of the plaintiff, who had formerly had a loan serviced by the Company. The complaint further alleges, on information and belief, that the Company improperly accessed credit reports of other similarly situated individuals. The lawsuit is in its early stages and the Company denies the allegations of the complaint and will vigorously defend against the allegations. Certain Financial Considerations Relating to Litigation and Investigations The Company had $101.9 million and $129.9 million in accrued contingent liabilities and $9.6 million and $52.1 million in insurance reimbursements receivable associated with the matters discussed above at March 31, 2018 and December 31, 2017 , respectively. The decrease in accrued contingent liabilities and insurance reimbursements receivable as of March 31, 2018 compared to December 31, 2017 was primarily a result of insurance reimbursement payments of $38.2 million in the first quarter of 2018 made by insurance carriers to the plaintiffs in the class action litigation settlement described above, partially offset by $13.5 million in accrued contingent liabilities in the first quarter of 2018 related to ongoing governmental and regulatory investigations. Class action settlement and regulatory litigation expense for the three months ended March 31, 2018 and December 31, 2017 was $13.5 million and $77.25 million , respectively. In addition to the foregoing, the Company is subject to, and may continue to be subject to, legal proceedings and regulatory actions in the ordinary course of business. No assurance can be given as to the timing or outcome of any of these matters.

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Segment Reporting	Segment Reporting The Company defines operating segments to be components of the Company for which discrete financial information is evaluated regularly by the Company’s executive management committee as chief operating decision maker (CODM). For purposes of allocating resources and evaluating financial performance, the Company’s CODM reviews financial information by loan product types of personal, education and patient finance, small business, and auto. These product types are individually reviewed as operating segments but are aggregated to represent one reportable segment because the education and patient finance, small business, and auto loan product types are immaterial both individually and in the aggregate. Substantially all of the Company’s revenue is generated in the United States. No individual borrower or investor accounted for 10% or more of consolidated net revenue for any of the periods presented.

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Related party transactions must be reviewed and approved by the Audit Committee of the Company’s board of directors when not conducted in the ordinary course of business subject to the standard terms of the Company’s lending marketplace or certificate investment program. Any material amendment or modification to an existing related party transaction is also subject to the review and approval of the Audit Committee. Related party transactions may include any transaction between entities under common control or with a related person that has occurred since the beginning of the Company’s latest fiscal year or is currently proposed. The Company has defined related persons as members of the board of directors, executive officers, principal owners of the Company’s outstanding stock and any immediate family members of each such related person, as well as any other person or entity with significant influence over the Company’s management or operations. Several of the Company’s executive officers and directors (including immediate family members) have made deposits and withdrawals to their investor accounts and purchased loans, notes and certificates or have investments in private funds managed by LCAM. The Company believes all such transactions by related persons were made in the ordinary course of business and were transacted on terms and conditions that were not more favorable than those obtained by similarly situated third-party investors. On April 1, 2016, the Company closed its $10.0 million investment in the Investment Fund, a holding company that participates in a family of funds with other unrelated third parties and purchases whole loans and interests in loans from the Company. As of March 31, 2018 , the Company had an ownership interest of approximately 25% in the Investment Fund. Mr. John Mack, one of the Company’s board members, had no remaining ownership interest in the Investment Fund as of March 31, 2018 . At March 31, 2018 , the Company’s investment was $8.9 million and the Company had a distribution receivable due from the Investment Fund of $1.25 million , which are recognized in “Other assets” on the Company’s Condensed Consolidated Balance Sheets. During the first quarter of 2018 , this Investment Fund purchased no whole loans or interests in whole loans. During the first quarter of 2018 , the Company earned $67 thousand in investor fees from this family of funds, and paid interest of $1.1 million on interests in whole loans to the family of funds. The Company believes that the investor fees charged were on terms and conditions that were not more favorable than those obtained by other third-party investors.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Company has evaluated the impact of events that have occurred subsequent to March 31, 2018 , through the date the condensed consolidated financial statements were filed with the SEC. Based on this evaluation, other than as recorded or disclosed within these condensed consolidated financial statements and related notes, the Company has determined none of these events were required to be recognized or disclosed.

Summary of Significant Accoun29

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Accrued Interest	Accrued Interest Accrued interest income on loans is calculated based on the contractual interest rate of the loan and recorded as interest income as earned. Loans are placed on non-accrual status upon reaching 90 days past due. When a loan is placed on non-accrual status, the Company stops accruing interest and reverses all accrued but unpaid interest as of such date. Accrued interest payable on notes, certificates and secured borrowings is also reduced when the corresponding loan is placed on non-accrual status, due to the payment dependent structure of the notes, certificates and secured borrowings.
Revenue Recognition	Revenue Recognition Transaction Fees: Transaction fees are considered revenue from contracts with customers. The Company receives transaction fees for the performance obligation of providing loan application processing and loan facilitation services for the issuing banks and education and patient service providers. Transaction fee contracts contain a single performance obligation, which consists of a series of distinct services that are substantially the same with the same pattern of transfer to customers. Transaction fees are based on the initial principal amount of the loans facilitated by the Company and paid by the issuing banks and education and patient service providers each time a loan is issued by the issuing banks. Transaction fees to which the Company expects to be entitled are variable consideration because loan volume originated over the contractual term is not known at the contracts inception. The transaction fee is determined each time a loan is issued based on that loan’s initial principal amount. The Company pays WebBank a loan trailing fee as consideration payable to customers (the issuing banks and education and patient service providers). The loan trailing fee liability is recorded in “Accrued Expense and Other Liabilities” on the Company’s Condensed Consolidated Balance Sheets. See “ Loan Trailing Fee Liability ” in “ Part II – Item 8. Financial Statements and Supplementary Data – Notes to Consolidated Financial Statements – Note 2. Summary of Significant Accounting Policies ” in the Company’s Annual Report for further discussion. Additionally, the Company assumes the issuing bank’s obligation under Utah law to refund the pro-rated amount of the transaction fee in excess of 5% in the event the borrower prepays the loan in full before maturity. Additionally, the Company may provide refunds to borrowers when the borrower cancels the loan under certain conditions. The Company estimates refunds based on historical information. Transaction fees are reduced by estimated trailing fees and refunds. Because the contract contains a single performance obligation, the entire transaction fee is allocated to the single performance obligation, which is satisfied at the time a loan facilitated by the Company is issued by the issuing banks. Because revenue is recognized at the same time that payments are received, there are no associated contract assets, contract liabilities, or accounts receivable. The Company pays sales incentives to certain employees to promote the platform and certain programs. These costs do not qualify as deferred contract costs and are expensed as incurred because they are not incremental costs of obtaining a contract with a customer. Investor Fees: Note investors, certain certificate holders and whole loan purchasers typically pay LendingClub a servicing fee on each payment received from a borrower or on the investors’ month-end principal balance of loans serviced. The servicing fee compensates the Company for managing payments from borrowers and payments to investors and maintaining investors’ platform accounts. The Company records servicing fees when received as a component of “Investor fees” in the Consolidated Statements of Operations. Servicing fees can be, and have been, modified or waived at management’s discretion. Investor fees also include the change in fair value of loan servicing assets and liabilities. Investor fees related to investment funds and separately managed accounts (SMAs) are revenue from contracts with customers. The Company receives the fees in exchange for the performance obligation of providing a series of distinct investment management services that are satisfied over time. The fees are payable monthly in arrears based on the month-end capital account or asset balance, but the fees can be, and have been, modified or waived at the discretion of LCAM. Investor fees related to funds and SMAs are recognized at the end of each month. Other Revenue: Other revenue primarily consists of referral fee revenue. Referral fees are revenue from contracts with customers. The Company refers prospective borrowers to third-party consumer loan providers after the prospective borrower applies for a loan through LendingClub’s platform but is denied credit. Referral contracts contain a single performance obligation, which consists of a series of distinct referral services that are satisfied over time. The Company recognizes referral fees for each distinct instance of referral service when the Company is entitled to receive payment, either at the time the referral is made or when the prospective borrower enters into a successful loan agreement with the third-party consumer loan provider, pursuant to the terms of the applicable referral agreement.
Adoption of New Accounting Standards	Adoption of New Accounting Standards The Company adopted the following accounting standards during the three month period ended March 31, 2018 : Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers (Topic 606): Under the standard, revenue is recognized when a customer obtains control of promised goods or services in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. The Company adopted Topic 606 on January 1, 2018 using the modified retrospective method for all contracts not completed as of the date of adoption. For contracts that were modified before the effective date, the Company reflected the aggregate effect of all modifications when identifying performance obligations and allocating transaction price in accordance with practical expedient ASC 606-10-65-1-(f)-4. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The adoption of Topic 606 did not change (1) the timing and pattern of revenue recognition for revenue streams in the scope of Topic 606, which includes transaction fees, management fees, and referral revenue, (2) the presentation of revenue as gross versus net, or (3) the amount of contract assets, contract liabilities, and deferred contract costs. Therefore, the adoption of Topic 606 had no impact on the Company’s financial position, results of operations, equity or cash flows as of the adoption date or for the three-month period ended March 31, 2018. The Company has included the disclosures required by Topic 606 in “ Note 3. Revenue from Contracts with Customers .” ASU 2016-01 Financial Instruments – Overall (Subtopic: 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities, which amends the accounting for equity investments, changes 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 guidance also requires an entity to present separately in other comprehensive income the portion of the total change in fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability under the fair value option. The Company adopted ASU 2016-01 on January 1, 2018. The adoption did not impact the Company’s financial position, results of operations, or cash flows. The Company has included the disclosures required by ASU 2016-01 in “ Note 8. Fair Value of Assets and Liabilities. ” ASU 2016-15 Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments to address diversity in practice in how certain cash receipts and payments are presented and classified in the statements of cash flows. The guidance also clarifies how the predominance principle should be applied when cash receipts and cash payments have aspects of more than one class of cash flows. The Company adopted ASU 2016-15 on January 1, 2018 and applied it retrospectively to all periods presented in the Consolidated Statements of Cash Flows. The adoption did not impact the Condensed Consolidated Statements of Cash Flows. ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, addresses the diversity in the classification and presentation of changes in restricted cash in the statements of cash flows, by requiring entities to combine the changes in cash and cash equivalents and restricted cash in one line. As a result, entities will no longer present transfers between cash and cash equivalents and restricted cash in the statements of cash flows. The Company adopted ASU 2016-18 on January 1, 2018 and applied it retrospectively to all periods presented in the Consolidated Statements of Cash Flows. For the three months ended March 31, 2018 and 2017 , the impact of the adoption resulted in a decrease in net cash provided by investing activities of $15.8 million and $28.9 million , respectively, due to reclassifying the changes in Restricted Cash to the beginning and ending Cash, Cash Equivalents and Restricted Cash balances within the Condensed Consolidated Statements of Cash Flows. ASU 2017-09 Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting, clarifies when to account for a change to the terms or conditions of a share-based payment award as a modification. The Company prospectively adopted ASU 2017-09 on January 1, 2018. The adoption did not have an impact on the Company’s financial position, results of operations, cash flows or related disclosures. ASU 2018-02, Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows companies the option to reclassify stranded tax effects caused by the newly-enacted Tax Cuts and Jobs Act from accumulated other comprehensive income to retained earnings. The ASU will be effective January 1, 2019 with early adoption permitted. The Company early adopted ASU 2018-02 on January 1, 2018. The adoption did not have a material impact on the Company’s financial position, results of operations, cash flows or related disclosures. New Accounting Standards Not Yet Adopted Updates to the new accounting standards not yet adopted as disclosed in the Company’s Annual Report and recently issued are as follows: In June 2016, the FASB amended guidance related to impairment of financial instruments as part of ASU 2016-13 Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which will be effective January 1, 2020. The guidance replaces the incurred loss impairment methodology with an expected credit loss model for which a company recognizes an allowance based on the estimate of expected credit loss. The Company accounts for its loans at fair value through net income, which is outside the scope of Topic 326. For available for sale debt securities, the guidance will require recognition of expected credit losses by recognizing an allowance for credit losses when the fair value of the security is below amortized cost and the recognition of this allowance is limited to the difference between the security’s amortized cost basis and fair value. The Company is evaluating the impact this ASU will have on its financial position, results of operations, and cash flows. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which requires lessees to record on their balance sheets a lease liability for the obligation to make lease payments and a right-of-use (ROU) asset for the right to use the underlying asset for the lease term. Lessees may elect to not recognize lease liabilities and ROU assets for leases with terms of 12 months or less. The lease liability is measured at the present value of the lease payments over the lease term. The ROU asset will be based on the liability, adjusted for lease prepayments, lease incentives, and the lessee’s initial direct costs. For operating leases, lease expense will generally be recognized on a straight-line basis over the lease term. Lessor accounting activities are largely unchanged from existing lease accounting. The new standard is effective January 1, 2019 and requires modified retrospective transition approach, with early adoption permitted. The Company expects to adopt the new standard in the first quarter of 2019. The Company has dedicated internal resources, engaged a professional services firm, and is currently in the project planning phase of the implementation. The Company is evaluating the impact of this guidance on its financial position, results of operations, cash flows and related disclosures.

Revenue from Contracts with C30

Revenue from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue by Source	The following table presents the Company’s revenue from contracts with customers, disaggregated by revenue source: Three Months Ended March 31, 2018 Timing of Revenue Recognition Services Transferred at a Point of Time Services Transferred Over Time Transaction fees $ 111,182 $ — $ 111,182 Investor fees - Funds and SMAs 41 — 41 Referral fees 836 — 836 Total Revenue from Contracts with Customers $ 112,059 $ — $ 112,059

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Basic and Diluted Net Income (Loss) per Share	The following table details the computation of the Company’s basic and diluted net loss per share: Three Months Ended 2018 2017 LendingClub net loss $ (31,181 ) $ (29,844 ) Weighted average common shares - Basic 418,299,301 400,308,521 Weighted average common shares - Diluted 418,299,301 400,308,521 Net loss per share attributable to LendingClub: Basic $ (0.07 ) $ (0.07 ) Diluted $ (0.07 ) $ (0.07 )

Securities Available for Sale (

Securities Available for Sale (Tables)	3 Months Ended
	Mar. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities Reconciliation	The amortized cost, gross unrealized gains and losses, and fair value of securities available for sale as of March 31, 2018 and December 31, 2017 , were as follows: March 31, 2018 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Asset-backed senior securities related to Company-sponsored securitizations (1) $ 45,875 $ 54 $ (48 ) $ 45,881 Certificates of deposit 20,303 — — 20,303 Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions (1) 20,070 125 (66 ) 20,129 Corporate debt securities 19,853 2 (15 ) 19,840 Asset-backed securities 14,588 — (2 ) 14,586 Commercial paper 7,685 — — 7,685 Total securities available for sale $ 128,374 $ 181 $ (131 ) $ 128,424 December 31, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Asset-backed senior securities related to Company-sponsored securitizations (1) $ 36,953 $ 73 $ (6 ) $ 37,020 Certificates of deposit 24,758 — — 24,758 Corporate debt securities 16,268 1 (11 ) 16,258 Asset-backed securities 14,843 1 (1 ) 14,843 Commercial paper 14,665 — — 14,665 Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions (1) 10,058 11 (40 ) 10,029 Total securities available for sale $ 117,545 $ 86 $ (58 ) $ 117,573 (1) As of March 31, 2018 and December 31, 2017 , approximately $64.2 million and $45.3 million , respectively, of the asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions are subject to restrictions on transfer pursuant to the Company's obligations as a “sponsor” under the U.S. Risk Retention Rules (as more fully described in “ Part II. Other Information – Item 1A. Risk Factors – Risk retention rules and recent developments in our business may increase our compliance costs, impair our liquidity and otherwise adversely affect our operating results” in the Company’s Annual Report).
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	A summary of securities available for sale with unrealized losses as of March 31, 2018 and December 31, 2017 , aggregated by period of continuous unrealized loss, is as follows: Less than 12 months 12 months or longer Total March 31, 2018 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions $ 42,018 $ (114 ) $ — $ — $ 42,018 $ (114 ) Corporate debt securities 15,377 (15 ) — — 15,377 (15 ) Asset-backed securities 1,748 (2 ) — — 1,748 (2 ) Total securities with unrealized losses (1) $ 59,143 $ (131 ) $ — $ — $ 59,143 $ (131 ) Less than 12 months Total December 31, 2017 Fair Unrealized Fair Unrealized Fair Unrealized Asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions $ 26,534 $ (46 ) $ — $ — $ 26,534 $ (46 ) Corporate debt securities 14,368 (11 ) — — 14,368 (11 ) Asset-backed securities 4,401 (1 ) — — 4,401 (1 ) Total securities with unrealized losses (1) $ 45,303 $ (58 ) $ — $ — $ 45,303 $ (58 ) (1) The number of investment positions with unrealized losses at March 31, 2018 and December 31, 2017 totaled 30 and 24 , respectively.
Available-for-sale Securities by Contractual Maturity	The contractual maturities of securities available for sale at March 31, 2018 , were as follows: Within 1 year After 1 year through 5 years Total Certificates of deposit $ 20,303 $ — $ 20,303 Corporate debt securities 19,840 — 19,840 Asset-backed securities 12,086 2,500 14,586 Commercial paper 7,685 — 7,685 Fair value $ 59,914 $ 2,500 $ 62,414 Asset-backed securities related to Company-sponsored securitizations and CLUB Certificate transactions 66,010 Total fair value $ 59,914 $ 2,500 $ 128,424 Total amortized cost $ 59,929 $ 2,500 $ 128,374

Loans Held For Investment, Lo33

Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings and Loan Servicing Rights (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Loans and Notes and Certificates	At March 31, 2018 and December 31, 2017 , loans held for investment, notes, certificates and secured borrowings measured at fair value on a recurring basis were as follows: Loans Held For Investment Notes, Certificates and Secured Borrowings March 31, December 31, March 31, December 31, Aggregate principal balance outstanding $ 2,829,765 $ 3,141,391 $ 2,847,040 $ 3,161,080 Net fair value adjustments (194,352 ) (209,066 ) (191,623 ) (206,312 ) Fair value $ 2,635,413 $ 2,932,325 $ 2,655,417 $ 2,954,768
Loans Invested in by Company	At March 31, 2018 and December 31, 2017 , loans invested in by the Company for which there were no associated notes, certificates or secured borrowings were as follows: Loans Invested in by the Company Loans Held For Investment Loans Held For Sale Total March 31, December 31, March 31, December 31, March 31, December 31, Aggregate principal balance outstanding $ 339,615 $ 371,379 $ 258,477 $ 242,273 $ 598,092 $ 613,652 Net fair value adjustments (22,157 ) (10,149 ) (10,133 ) (6,448 ) (32,290 ) (16,597 ) Fair value $ 317,458 $ 361,230 $ 248,344 $ 235,825 $ 565,802 $ 597,055
Past Due Financing Receivables	Loans that were 90 days or more past due (including non-accrual loans) were as follows: March 31, 2018 December 31, 2017 > 90 days past due and non-accrual loans (1) > 90 days past due Non-accrual loans (1) Loans held for investment and loans held for sale: Outstanding principal balance $ 27,477 $ 36,588 $ 3,289 Net fair value adjustments (22,558 ) (30,071 ) (2,675 ) Fair value $ 4,919 $ 6,517 $ 614 Number of loans (not in thousands) 2,852 3,779 591 Loans invested in by the Company: Outstanding principal balance $ 2,124 $ 1,015 $ 122 Net fair value adjustments (1,749 ) (861 ) (107 ) Fair value $ 375 $ 154 $ 15 Number of loans (not in thousands) 317 257 34 (1) Beginning in the first quarter of 2018, loans are placed on non-accrual status upon reaching 90 days past due. Prior to the first quarter of 2018, loans were placed on non-accrual status upon reaching 120 days past due. The effect of this change in estimate is immaterial. See “ Note 2. Summary of Significant Accounting Policies ” for additional information on the Company’s “Accrued Interest” accounting policy.

Securitization and Variable I34

Securitization and Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2018
Variable Interest Entity [Line Items]
Summary of Select Information Related to VIEs	The following tables provide the classifications of assets and liabilities on the Company’s Condensed Consolidated Balance Sheets for its transactions with VIEs at March 31, 2018 and December 31, 2017 : March 31, 2018 Consolidated VIEs Unconsolidated VIEs Total Assets Restricted cash $ 45,998 $ — $ 45,998 Securities available for sale — 66,010 66,010 Loans held for investment at fair value 1,043,223 — 1,043,223 Loans held for investment by the Company at fair value 307,173 — 307,173 Loans held for sale by Company at fair value 86,156 — 86,156 Accrued interest receivable 12,387 789 13,176 Other assets 3,410 17,492 20,902 Total assets $ 1,498,347 $ 84,291 $ 1,582,638 Liabilities Accrued interest payable $ 11,196 $ — $ 11,196 Accrued expenses and other liabilities 836 — 836 Notes, certificates and secured borrowings at fair value 1,050,091 — 1,050,091 Payable to securitization note and residual certificate holders 280,915 — 280,915 Payable to revolving credit facilities 49,000 — 49,000 Total liabilities 1,392,038 — 1,392,038 Total net assets $ 106,309 $ 84,291 $ 190,600 December 31, 2017 Consolidated VIEs Unconsolidated VIEs Total Assets Restricted cash $ 34,370 $ — $ 34,370 Securities available for sale — 47,049 47,049 Loans held for investment at fair value 1,202,260 — 1,202,260 Loans held for investment by the Company at fair value 350,699 — 350,699 Loans held for sale by Company at fair value 60,812 — 60,812 Accrued interest receivable 15,602 407 16,009 Other assets 6,324 15,779 22,103 Total assets $ 1,670,067 $ 63,235 $ 1,733,302 Liabilities Accrued interest payable $ 14,789 $ — $ 14,789 Accrued expenses and other liabilities 52 300 352 Notes, certificates and secured borrowings at fair value 1,210,349 — 1,210,349 Payable to securitization note and residual certificate holders 312,123 — 312,123 Payable to revolving credit facilities 32,100 — 32,100 Total liabilities 1,569,413 300 1,569,713 Total net assets $ 100,654 $ 62,935 $ 163,589
Summary of Activity Related to Personal Whole Loan Securitizations	The following table summarizes activity related to the unconsolidated personal whole loan securitizations and personal whole loan CLUB Certificates with the transfers accounted for as a sale on the Company’s condensed consolidated financial statements for the three months ended March 31, 2018 : Three Months Ended March 31, 2018 Personal Whole Loan Securitizations Personal Whole Loan CLUB Certificates Principal derecognized from loans securitized or sold $ 355,248 $ 161,875 Net gains (losses) recognized from loans securitized or sold $ 3,097 $ 1,457 Fair value of senior securities and subordinated certificates retained upon settlement (1) $ 18,493 $ 8,102 Cash proceeds from loans securitized or sold $ 283,272 $ 154,839 Cash proceeds from servicing and other administrative fees on loans securitized or sold $ 2,350 $ 135 Cash proceeds for interest received on senior securities and subordinated certificates $ 296 $ 82 (1) For personal whole loan securitizations, the Company retained senior securities of $15.1 million and subordinated certificates of $3.4 million .
Sensitivity Analysis of Fair Value, Securities and Certificates	The following tables provide adverse changes to the fair value sensitivity of the senior securities, subordinated residual certificates and CLUB Certificates to changes in key assumptions at March 31, 2018 and December 31, 2017 : March 31, 2018 Asset-Backed Securities Related to Company-Sponsored Securitizations and CLUB Certificate Transactions Senior Subordinated Residual Certificates CLUB Certificates Fair value of interests held $ 45,881 $ 10,351 $ 9,778 Expected weighted-average life (in years) 0.7 1.6 1.3 Discount rates 100 basis point increase $ (442 ) $ (127 ) $ (119 ) 200 basis point increase $ (875 ) $ (250 ) $ (236 ) Expected credit loss rates on underlying loans 10% adverse change $ — $ (1,454 ) $ (171 ) 20% adverse change $ — $ (2,875 ) $ (308 ) Expected prepayment rates 10% adverse change $ — $ (507 ) $ (77 ) 20% adverse change $ — $ (988 ) $ (120 ) December 31, 2017 Asset-Backed Securities Related to Company-Sponsored Securitizations and CLUB Certificate Transactions Senior Subordinated Residual Certificates CLUB Certificates Fair value of interests held $ 37,020 $ 8,236 $ 1,793 Expected weighted-average life (in years) 1.0 1.5 1.4 Discount rates 100 basis point increase $ (326 ) $ (105 ) $ (41 ) 200 basis point increase $ (644 ) $ (208 ) $ (76 ) Expected credit loss rates on underlying loans 10% adverse change $ (1 ) $ (1,060 ) $ (15 ) 20% adverse change $ (2 ) $ (2,118 ) $ (25 ) Expected prepayment rates 10% adverse change $ (1 ) $ (265 ) $ (21 ) 20% adverse change $ (3 ) $ (513 ) $ (42 )
Consolidated VIEs
Variable Interest Entity [Line Items]
Summary of Select Information Related to VIEs	The following table presents a summary of financial assets and liabilities from the Company’s involvement with consolidated VIEs at March 31, 2018 and December 31, 2017 : March 31, 2018 Assets Liabilities Net Assets Trust Certificates $ 1,063,936 $ (1,061,014 ) $ 2,922 Securitizations 330,530 (281,310 ) 49,220 Warehouse Credit Facilities 103,881 (49,714 ) 54,167 Total consolidated VIEs $ 1,498,347 $ (1,392,038 ) $ 106,309 December 31, 2017 Assets Liabilities Net Assets Trust Certificates $ 1,226,957 $ (1,224,473 ) $ 2,484 Securitizations 375,607 (312,832 ) 62,775 Warehouse Credit Facility 67,503 (32,108 ) 35,395 Total consolidated VIEs $ 1,670,067 $ (1,569,413 ) $ 100,654
Unconsolidated VIEs
Variable Interest Entity [Line Items]
Summary of Select Information Related to VIEs	The following tables summarize unconsolidated VIEs with which the Company has significant continuing involvement, but is not the primary beneficiary at March 31, 2018 and December 31, 2017 : March 31, 2018 Carrying Value Total VIE Assets Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Net Assets Securitizations $ 1,087,108 $ 56,232 $ 738 $ 6,865 $ — $ 63,835 CLUB Certificates 192,565 9,778 51 1,678 — 11,507 Investment Fund 36,249 — — 8,949 — 8,949 Total unconsolidated VIEs $ 1,315,922 $ 66,010 $ 789 $ 17,492 $ — $ 84,291 March 31, 2018 Maximum Exposure to Loss Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Total Exposure Securitizations $ 56,232 $ 738 $ 6,865 $ — $ 63,835 CLUB Certificates 9,778 51 1,678 — 11,507 Investment Fund — — 8,949 — 8,949 Total unconsolidated VIEs $ 66,010 $ 789 $ 17,492 $ — $ 84,291 December 31, 2017 Carrying Value Total VIE Assets Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Net Assets Securitizations $ 863,589 $ 45,256 $ 391 $ 5,446 $ (300 ) $ 50,793 CLUB Certificates 36,833 1,793 16 315 — 2,124 Investment Fund 40,494 — — 10,018 — 10,018 Total unconsolidated VIEs $ 940,916 $ 47,049 $ 407 $ 15,779 $ (300 ) $ 62,935 December 31, 2017 Maximum Exposure to Loss Securities Available for Sale Accrued Interest Receivable Other Assets Accrued Expenses and Other Liabilities Total Exposure Securitizations $ 45,256 $ 391 $ 5,446 $ 300 $ 51,393 CLUB Certificates 1,793 16 315 — 2,124 Investment Fund — — 10,018 — 10,018 Total unconsolidated VIEs $ 47,049 $ 407 $ 15,779 $ 300 $ 63,535

Fair Value of Assets and Liab35

Fair Value of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Hierarchy of Assets and Liabilities Measured on a Recurring Basis	The following tables present the fair value hierarchy for assets and liabilities measured at fair value at March 31, 2018 and December 31, 2017 : March 31, 2018 Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Loans held for investment $ — $ — $ 2,635,413 $ 2,635,413 Loans held for investment by the Company — — 317,458 317,458 Loans held for sale by the Company — — 248,344 248,344 Securities available for sale: Asset-backed senior securities related to Company-sponsored securitizations — 45,881 — 45,881 Certificates of deposit — 20,303 — 20,303 Corporate debt securities — 19,840 — 19,840 Asset-backed securities — 14,586 — 14,586 Commercial paper — 7,685 — 7,685 Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions — — 20,129 20,129 Total securities available for sale — 108,295 20,129 128,424 Servicing assets — — 40,884 40,884 Total assets $ — $ 108,295 $ 3,262,228 $ 3,370,523 Liabilities: Notes, certificates and secured borrowings $ — $ — $ 2,655,417 $ 2,655,417 Payable to securitization residual certificate holders — — 1,354 1,354 Servicing liabilities — — 475 475 Loan trailing fee liability — — 8,824 8,824 Total liabilities $ — $ — $ 2,666,070 $ 2,666,070 December 31, 2017 Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Assets: Loans held for investment $ — $ — $ 2,932,325 $ 2,932,325 Loans held for investment by the Company — — 361,230 361,230 Loans held for sale by the Company — — 235,825 235,825 Securities available for sale: Asset-backed senior securities related to Company-sponsored securitizations — 37,020 — 37,020 Certificates of deposit — 24,758 — 24,758 Corporate debt securities — 16,258 — 16,258 Asset-backed securities — 14,843 — 14,843 Commercial paper — 14,665 — 14,665 Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions — — 10,029 10,029 Total securities available for sale — 107,544 10,029 117,573 Servicing assets — — 33,676 33,676 Total assets $ — $ 107,544 $ 3,573,085 $ 3,680,629 Liabilities: Notes, certificates and secured borrowings $ — $ — $ 2,954,768 $ 2,954,768 Payable to securitization residual certificate holders — — 1,479 1,479 Servicing liabilities — — 833 833 Loan trailing fee liability — — 8,432 8,432 Total liabilities $ — $ — $ 2,965,512 $ 2,965,512
Quantitative Information about Significant Unobservable Inputs Used for Fair Value Measurements	The following tables present quantitative information about the significant unobservable inputs used for the Company’s Level 3 fair value measurements at March 31, 2018 and December 31, 2017 : March 31, 2018 Loans Held for Investment, Loans Held for Sale, Notes, Certificates and Secured Borrowings (1) Asset-Backed Securities Related to Consolidated VIE Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 2.7 % 16.7 % 8.9 % 3.2 % 15.0 % 7.4 % Net cumulative expected loss rates (2)(4) 0.4 % 42.1 % 13.8 % 5.2 % 38.7 % 13.3 % Cumulative expected prepayment rates (2)(4) 11.3 % 52.3 % 31.3 % 25.7 % 34.2 % 30.3 % March 31, 2018 Servicing Assets/Liabilities Loan Trailing Fee Liability Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 3.4 % 16.5 % 8.9 % 3.4 % 16.5 % 9.2 % Net cumulative expected loss rates (2) 0.4 % 42.1 % 12.3 % 0.8 % 42.1 % 13.1 % Cumulative expected prepayment rates (2) 11.3 % 52.3 % 32.0 % 11.3 % 52.3 % 31.6 % Total market servicing rates (% per annum on outstanding principal balance) (3) 0.66 % 0.90 % 0.66 % N/A N/A N/A December 31, 2017 Loans Held for Investment, Loans Held for Sale, Notes, Certificates and Secured Borrowings (1) Asset-Backed Securities Related to Consolidated VIE Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.7 % 17.2 % 8.5 % 5.8 % 15.0 % 9.5 % Net cumulative expected loss rates (2) (4) 0.4 % 41.8 % 13.8 % 10.9 % 37.2 % 19.7 % Cumulative expected prepayment rates (2) (4) 11.3 % 51.0 % 31.6 % 28.3 % 33.7 % 30.5 % December 31, 2017 Servicing Assets/Liabilities Loan Trailing Fee Liability Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.9 % 17.1 % 8.8 % 1.9 % 17.1 % 8.9 % Net cumulative expected loss rates (2) 0.4 % 41.8 % 12.4 % 0.8 % 41.8 % 13.2 % Cumulative expected prepayment rates (2) 11.3 % 51.0 % 31.7 % 11.3 % 51.0 % 31.4 % Total market servicing rates (% per annum on outstanding principal balance) (3) 0.66 % 0.90 % 0.66 % N/A N/A N/A N/A Not applicable (1) Loans held for investment and loans held for sale include loans invested in by the Company. (2) Expressed as a percentage of the original principal balance of the loan, note or certificate, except for asset-backed securities. (3) Includes collection fees estimated to be paid to a hypothetical third-party servicer. (4) For asset-backed securities, expressed as a percentage of the outstanding collateral balance.
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Table	The following tables present additional information about Level 3 loans held for investment, loans held for sale, and notes, certificates and secured borrowings measured at fair value on a recurring basis for the first quarters of 2018 and 2017 : Loans Held For Investment Loans Held For Sale Notes, Certificates and Secured Borrowings Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Balance at December 31, 2017 $ 3,141,391 $ (209,066 ) $ 2,932,325 $ — $ — $ — $ 3,161,080 $ (206,312 ) $ 2,954,768 Purchases 292,114 9 292,123 1,133,277 (1,772 ) 1,131,505 — — — Issuances — — — — — — 292,461 — 292,461 Sales — — — (1,133,277 ) 835 (1,132,442 ) — — — Principal payments and retirements (500,949 ) — (500,949 ) — — — (503,710 ) 8 (503,702 ) Charge-offs (102,791 ) 102,791 — — — — (102,791 ) 102,791 — Recoveries — (17,459 ) (17,459 ) — — — — (17,459 ) (17,459 ) Change in fair value recorded in earnings — (70,627 ) (70,627 ) — 937 937 — (70,651 ) (70,651 ) Balance at March 31, 2018 $ 2,829,765 $ (194,352 ) $ 2,635,413 $ — $ — $ — $ 2,847,040 $ (191,623 ) $ 2,655,417 Loans Held For Investment Loans Held For Sale Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Balance at December 31, 2016 $ 4,547,138 $ (252,017 ) $ 4,295,121 $ — $ — $ — $ 4,572,912 $ (252,017 ) $ 4,320,895 Purchases 523,235 2 523,237 1,170,207 — 1,170,207 — — — Issuances — — — — — — 523,305 — 523,305 Sales — — — (1,170,207 ) — (1,170,207 ) — — — Principal payments and retirements (638,235 ) — (638,235 ) — — — (641,105 ) 2 (641,103 ) Charge-offs (136,810 ) 136,810 — — — — (136,810 ) 136,810 — Recoveries — (10,790 ) (10,790 ) — — — — (10,790 ) (10,790 ) Change in fair value recorded in earnings — (157,950 ) (157,950 ) — — — — (157,950 ) (157,950 ) Balance at March 31, 2017 $ 4,295,328 $ (283,945 ) $ 4,011,383 $ — $ — $ — $ 4,318,302 $ (283,945 ) $ 4,034,357 The following tables present additional information about Level 3 loans invested in by the Company measured at fair value on a recurring basis for the first quarters of 2018 and 2017 : Loans Held For Investment by the Company Loans Held For Sale by the Company Total Loans Invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Balance at December 31, 2017 $ 371,379 $ (10,149 ) $ 361,230 $ 242,273 $ (6,448 ) $ 235,825 $ 613,652 $ (16,597 ) $ 597,055 Purchases 1,496 (160 ) 1,336 791,675 (280 ) 791,395 793,171 (440 ) 792,731 Transfers (to) from loans held for investment (from) to loans held for sale 106 — 106 (106 ) — (106 ) — — — Sales — — — (742,732 ) 10,048 (732,684 ) (742,732 ) 10,048 (732,684 ) Principal payments and retirements (32,194 ) — (32,194 ) (30,418 ) — (30,418 ) (62,612 ) — (62,612 ) Charge-offs (1,172 ) 1,172 — (2,215 ) 2,215 — (3,387 ) 3,387 — Recoveries — (199 ) (199 ) — (12 ) (12 ) — (211 ) (211 ) Change in fair value recorded in earnings — (12,821 ) (12,821 ) — (15,656 ) (15,656 ) — (28,477 ) (28,477 ) Balance at March 31, 2018 $ 339,615 $ (22,157 ) $ 317,458 $ 258,477 $ (10,133 ) $ 248,344 $ 598,092 $ (32,290 ) $ 565,802 Loans Held For Investment by the Company Loans Held For Sale by the Company Total Loans Invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Balance at December 31, 2016 $ 18,515 $ (1,652 ) $ 16,863 $ 9,345 $ (297 ) $ 9,048 $ 27,860 $ (1,949 ) $ 25,911 Purchases 1,181 (6 ) 1,175 5,948 (1 ) 5,947 7,129 (7 ) 7,122 Sales — — — (4,229 ) 157 (4,072 ) (4,229 ) 157 (4,072 ) Principal payments and retirements (1,484 ) — (1,484 ) (1,180 ) — (1,180 ) (2,664 ) — (2,664 ) Charge-offs (1,288 ) 1,288 — (160 ) 160 — (1,448 ) 1,448 — Recoveries — (99 ) (99 ) — — — — (99 ) (99 ) Change in fair value recorded in earnings — (1,083 ) (1,083 ) — (334 ) (334 ) — (1,417 ) (1,417 ) Balance at March 31, 2017 $ 16,924 $ (1,552 ) $ 15,372 $ 9,724 $ (315 ) $ 9,409 $ 26,648 $ (1,867 ) $ 24,781 The following tables present additional information about Level 3 servicing assets and liabilities measured at fair value on a recurring basis for the first quarters of 2018 and 2017 : Three Months Ended March 31, 2018 Three Months Ended March 31, 2017 Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Fair value at beginning of period $ 33,676 $ 833 $ 21,398 $ 2,846 Issuances (1) 11,980 — 5,317 274 Change in fair value, included in investor fees (5,606 ) (358 ) (4,047 ) (809 ) Other net changes included in deferred revenue 834 — (308 ) — Fair value at end of period $ 40,884 $ 475 $ 22,360 $ 2,311 (1) Represents the gains or losses on sales of the related loans, recorded in other revenue.
Fair Value, Liabilities Measured on Recurring Basis	The following table presents additional information about Level 3 loan trailing fee liability measured at fair value on a recurring basis for the first quarters of 2018 and 2017 : Three Months Ended 2018 2017 Fair value at beginning of period $ 8,432 $ 4,913 Issuances 1,775 1,663 Cash payment of loan trailing fee (1,554 ) (826 ) Change in fair value, included in origination and servicing 171 64 Fair value at end of period $ 8,824 $ 5,814
Fair Value Sensitivity of Loans	The fair value sensitivity of loans invested in by the Company to adverse changes in key assumptions as of March 31, 2018 and December 31, 2017 are as follows: March 31, 2018 December 31, Fair value of loans invested in by the Company $ 565,802 $ 597,055 Expected weighted-average life (in years) 1.5 1.5 Discount rates 100 basis point increase $ (6,708 ) $ (7,449 ) 200 basis point increase $ (13,258 ) $ (14,715 ) Expected credit loss rates on underlying loans 10% adverse change $ (9,249 ) $ (10,090 ) 20% adverse change $ (18,356 ) $ (18,935 ) Expected prepayment rates 10% adverse change $ (2,355 ) $ (3,548 ) 20% adverse change $ (4,616 ) $ (5,894 )
Fair Value Disclosure And Measurement	The table below shows the impact on the estimated fair value of servicing assets and liabilities, calculated using different market servicing rate assumptions as of March 31, 2018 and December 31, 2017 : March 31, 2018 December 31, 2017 Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Weighted-average market servicing rate assumptions 0.66 % 0.66 % 0.66 % 0.66 % Change in fair value from: Servicing rate increase by 0.10% $ (8,340 ) $ 154 $ (7,749 ) $ 233 Servicing rate decrease by 0.10% $ 8,343 $ (151 ) $ 7,760 $ (222 )
Fair Value, by Balance Sheet Grouping	The following tables present the fair value hierarchy for financial instruments, assets, and liabilities not recorded at fair value at March 31, 2018 and December 31, 2017 : March 31, 2018 Carrying Amount Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Cash and cash equivalents (1) $ 405,078 $ — $ 405,078 $ — $ 405,078 Restricted cash 226,818 — 226,818 — 226,818 Servicer reserve receivable 5,895 — 5,895 — 5,895 Deposits 855 — 855 — 855 Total assets $ 638,646 $ — $ 638,646 $ — $ 638,646 Liabilities: Accrued expenses and other liabilities $ 14,014 $ — $ — $ 14,014 $ 14,014 Accounts payable 3,389 — 3,389 — 3,389 Payables to investors 108,247 — 108,247 — 108,247 Payable to securitization note holders 279,561 — 279,561 — 279,561 Payable to revolving credit facilities 74,000 — — 74,000 74,000 Total liabilities $ 479,211 $ — $ 391,197 $ 88,014 $ 479,211 (1) Carrying amount approximates fair value due to the short maturity of these financial instruments. December 31, 2017 Carrying Amount Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Cash and cash equivalents (1) $ 401,719 $ — $ 401,719 $ — $ 401,719 Restricted cash 242,570 — 242,570 — 242,570 Servicer reserve receivable 13,685 — 13,685 — 13,685 Deposits 855 — 855 — 855 Total assets $ 658,829 $ — $ 658,829 $ — $ 658,829 Liabilities: Accrued expenses and other liabilities $ 13,856 $ — $ — $ 13,856 $ 13,856 Accounts payable 11,151 — 11,151 — 11,151 Payables to investors 143,310 — 143,310 — 143,310 Payable to securitization note holders 310,644 — 310,644 — 310,644 Payable to revolving credit facilities 32,100 — — 32,100 32,100 Total liabilities $ 511,061 $ — $ 465,105 $ 45,956 $ 511,061 (1) Carrying amount approximates fair value due to the short maturity of these financial instruments.

Property, Equipment and Softw36

Property, Equipment and Software, Net (Tables)	3 Months Ended
	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Property, Equipment and Software	Property, equipment and software, net, consist of the following: March 31, December 31, Internally developed software (1) $ 112,169 $ 107,370 Leasehold improvements 27,190 26,949 Computer equipment 21,391 20,324 Purchased software 8,151 8,284 Furniture and fixtures 7,613 7,567 Construction in progress 2,296 1,202 Total property, equipment and software 178,810 171,696 Accumulated depreciation and amortization (71,633 ) (69,763 ) Total property, equipment and software, net $ 107,177 $ 101,933 (1) Includes $12.4 million and $10.7 million in development in progress as of March 31, 2018 and December 31, 2017 , respectively.

Other Assets (Tables)

Other Assets (Tables)	3 Months Ended
	Mar. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other assets consist of the following: March 31, December 31, Loan servicing assets, at fair value $ 40,884 $ 33,676 Prepaid expenses 21,457 23,427 Accounts receivable 10,353 10,005 Insurance reimbursements receivable 9,550 52,119 Other investments 9,199 10,268 Servicer reserve receivable 5,895 13,685 Deferred financing costs 3,749 2,952 Receivable from investors 2,024 2,318 Other 3,759 7,828 Total other assets $ 106,870 $ 156,278

Accrued Expenses and Other Li38

Accrued Expenses and Other Liabilities (Tables)	3 Months Ended
	Mar. 31, 2018
Payables and Accruals [Abstract]
Accrued Expenses and Other Liabilities	Accrued expenses and other liabilities consist of the following: March 31, December 31, Contingent liabilities $ 101,889 $ 129,887 Accrued expenses 30,667 21,317 Accrued compensation 16,438 30,549 Transaction fee refund reserve 15,088 14,528 Deferred rent 14,831 14,734 Loan trailing fee liability, at fair value 8,824 8,432 Deferred revenue 4,315 3,415 Payable to issuing banks 1,015 1,894 Loan servicing liabilities, at fair value 475 833 Other 2,975 2,791 Total accrued expenses and other liabilities $ 196,517 $ 228,380

Employee Incentive Plans (Table

Employee Incentive Plans (Tables)	3 Months Ended
	Mar. 31, 2018
Postemployment Benefits [Abstract]
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan	Stock-based compensation expense was as follows for the periods presented: Three Months Ended 2018 2017 Stock options $ 2,567 $ 4,345 RSUs 14,793 14,634 ESPP 441 385 Stock issued related to acquisition — 134 Total stock-based compensation expense $ 17,801 $ 19,498
Schedule of Stock-Based Compensation Expense Recorded for Stock Options, Warrants and Series F Convertible Preferred Stock	The following table presents the Company’s stock-based compensation expense recorded in the Condensed Consolidated Statements of Operations: Three Months Ended 2018 2017 Sales and marketing $ 1,860 $ 2,299 Origination and servicing 1,072 1,416 Engineering and product development 5,279 6,588 Other general and administrative 9,590 9,195 Total stock-based compensation expense $ 17,801 $ 19,498

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	The Company’s future minimum payments under non-cancelable operating leases in excess of one year and anticipated sublease income as of March 31, 2018 , were as follows: Operating Leases Subleases Net 2018 $ 12,372 $ (233 ) $ 12,139 2019 16,626 (39 ) 16,587 2020 17,557 — 17,557 2021 17,844 — 17,844 2022 13,519 — 13,519 Thereafter 32,645 — 32,645 Total $ 110,563 $ (272 ) $ 110,291

Summary of Significant Accoun41

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Non-accrual status threshold	90 days
Net cash provided by investing activities	$ 229,678	$ 161,080
Accounting Standards Update 2016-18 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net cash provided by investing activities	$ (15,800)	$ (28,900)

Revenue from Contracts with C42

Revenue from Contracts with Customers - Disaggregation of Revenue by Source (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	$ 112,059
Transaction fees
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	111,182
Investor fees - Funds and SMAs
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	41
Referral fees
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	836
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	0
Transferred at Point in Time [Member] | Transaction fees
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	0
Transferred at Point in Time [Member] | Investor fees - Funds and SMAs
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	0
Transferred at Point in Time [Member] | Referral fees
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	0
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	112,059
Transferred over Time [Member] | Transaction fees
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	111,182
Transferred over Time [Member] | Investor fees - Funds and SMAs
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	41
Transferred over Time [Member] | Referral fees
Disaggregation of Revenue [Line Items]
Total Revenue from Contracts with Customers	$ 836

Revenue from Contracts with C43

Revenue from Contracts with Customers - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Disaggregation of Revenue [Line Items]
Bad debt expense	$ 0
Contract assets	0
Contract liabilities	0
Deferred contract costs	0
Revenue recognized from performance obligations related to prior periods	0
Transaction fees
Disaggregation of Revenue [Line Items]
Accounts receivable	0
Management fees, SMAs and referral fees
Disaggregation of Revenue [Line Items]
Accounts receivable	$ 300

Net Loss Per Share - Basic and

Net Loss Per Share - Basic and Diluted Net Income (Loss) per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
LendingClub net loss	$ (31,181)	$ (29,844)
Basic weighted average common shares (shares)	418,299,301	400,308,521
Diluted weighted average common shares (shares)	418,299,301	400,308,521
Net loss per share attributable to LendingClub:
Basic ($ per share)	$ (0.07)	$ (0.07)
Diluted ($ per share)	$ (0.07)	$ (0.07)

Securities Available for Sale -

Securities Available for Sale - Amortized cost/fair value (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 128,374	$ 117,545
Gross Unrealized Gains	181	86
Gross Unrealized Losses	(131)	(58)
Fair Value	128,424	117,573
Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	20,129	10,029
Asset-backed senior securities related to Company-sponsored securitizations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	45,875	36,953
Gross Unrealized Gains	54	73
Gross Unrealized Losses	(48)	(6)
Fair Value	45,881	37,020
Asset-backed senior securities related to Company-sponsored securitizations | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	0
Certificates of deposit
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	20,303	24,758
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	20,303	24,758
Certificates of deposit | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	0
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	19,853	16,268
Gross Unrealized Gains	2	1
Gross Unrealized Losses	(15)	(11)
Fair Value	19,840	16,258
Corporate debt securities | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	0
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	14,588	14,843
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(2)	(1)
Fair Value	14,586	14,843
Asset-backed securities | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	0
Commercial paper
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7,685	14,665
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	7,685	14,665
Commercial paper | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	0
Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	20,070	10,058
Gross Unrealized Gains	125	11
Gross Unrealized Losses	(66)	(40)
Fair Value	20,129	10,029
Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	20,129	10,029
Asset-backed Securities, Securitized Loans and Receivables, Subject to Restrictions on Transfer [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	64,200	45,300
Asset-backed senior securities related to Company-sponsored securitizations (1)
Schedule of Available-for-sale Securities [Line Items]
Fair Value	66,010
Asset-backed senior securities related to Company-sponsored securitizations (1) | Level 3 Inputs | Subordinated residual certificates
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 20,100	$ 10,000

Securities Available for Sale46

Securities Available for Sale - Continuous loss (Details) $ in Thousands	Mar. 31, 2018USD ($)position	Dec. 31, 2017USD ($)position
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months	$ 59,143	$ 45,303
Unrealized Losses, Less than 12 months	(131)	(58)
Fair Value, 12 months or longer	0	0
Unrealized Losses, 12 months or longer	0	0
Fair Value	59,143	45,303
Unrealized Losses	$ (131)	$ (58)
Number of positions with unrealized losses | position	30	24
Asset-backed senior securities related to Company-sponsored securitizations (1)
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months	$ 42,018	$ 26,534
Unrealized Losses, Less than 12 months	(114)	(46)
Fair Value, 12 months or longer	0	0
Unrealized Losses, 12 months or longer	0	0
Fair Value	42,018	26,534
Unrealized Losses	(114)	(46)
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months	15,377	14,368
Unrealized Losses, Less than 12 months	(15)	(11)
Fair Value, 12 months or longer	0	0
Unrealized Losses, 12 months or longer	0	0
Fair Value	15,377	14,368
Unrealized Losses	(15)	(11)
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months	1,748	4,401
Unrealized Losses, Less than 12 months	(2)	(1)
Fair Value, 12 months or longer	0	0
Unrealized Losses, 12 months or longer	0	0
Fair Value	1,748	4,401
Unrealized Losses	$ (2)	$ (1)

Securities Available for Sale47

Securities Available for Sale - Maturities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair value
Within 1 year	$ 59,914
After 1 year through 5 years	2,500
Total	128,424	$ 117,573
Amortized cost
Within 1 year	59,929
After 1 year through 5 years	2,500
Total	128,374
Debt securities, excluding asset-backed senior securities related to Company-sponsored securitizations
Fair value
Within 1 year	59,914
After 1 year through 5 years	2,500
Total	62,414
Certificates of deposit
Fair value
Within 1 year	20,303
After 1 year through 5 years	0
Total	20,303	24,758
Corporate debt securities
Fair value
Within 1 year	19,840
After 1 year through 5 years	0
Total	19,840	16,258
Asset-backed securities
Fair value
Within 1 year	12,086
After 1 year through 5 years	2,500
Total	14,586	14,843
Commercial paper
Fair value
Within 1 year	7,685
After 1 year through 5 years	0
Total	7,685	$ 14,665
Asset-backed senior securities related to Company-sponsored securitizations (1)
Fair value
Total	$ 66,010

Securities Available for Sale48

Securities Available for Sale - Gross realized losses (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Other than temporary impairment charges	$ 1,300,000	$ 0
Credit losses recognized into earnings for other-than-temporary impaired securities	0
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Sale of asset-backed securities	440,600,000
Realized gains (losses), net	$ 0

Loans Held For Investment, Lo49

Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings and Loan Servicing Rights (Detail) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment	[1]	$ 2,635,413	$ 2,932,325
Fair Value	[1]	2,655,417	2,954,768
Loans held for sale	[1]	248,344	235,825
Fair Value, Measurements, Recurring | Loans Invested in by Company
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding		598,092	613,652
Fair value adjustments		(32,290)	(16,597)
Loans and loans held for sale		565,802	597,055
Fair Value, Measurements, Recurring | Loans Held For Investment
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding		2,829,765	3,141,391
Fair value adjustments		(194,352)	(209,066)
Loans held for investment		2,635,413	2,932,325
Fair Value, Measurements, Recurring | Loans Held For Investment | Loans Invested in by Company
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding		339,615	371,379
Fair value adjustments		(22,157)	(10,149)
Loans held for investment		317,458	361,230
Fair Value, Measurements, Recurring | Notes, Certificates and Secured Borrowings
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding		2,847,040	3,161,080
Fair value adjustments		(191,623)	(206,312)
Fair Value		2,655,417	2,954,768
Fair Value, Measurements, Recurring | Loans Held For Sale | Loans Invested in by Company
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding		258,477	242,273
Fair value adjustments		(10,133)	(6,448)
Loans held for sale		$ 248,344	$ 235,825
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Loans Held For Investment, Lo50

Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings and Loan Servicing Rights - Past Due Table (Details) $ in Thousands	Mar. 31, 2018USD ($)Loan	Dec. 31, 2017USD ($)Loan
Loans and Loans Held for Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Outstanding principal balance, 90 days or more past due	$ 27,477	$ 36,588
Outstanding principal balance, non-accrual loans		3,289
Net fair value adjustments, 90 days or more past due	(22,558)	(30,071)
Net fair value adjustments, non-accrual loans		(2,675)
Fair value, past 90 days due	$ 4,919	6,517
Fair value, non-accrual loans		$ 614
Number of loans, 90 days past due | Loan	2,852	3,779
Number of loans, non-accrual loans | Loan		591
Loans Invested in by Company
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Outstanding principal balance, 90 days or more past due	$ 2,124	$ 1,015
Outstanding principal balance, non-accrual loans		122
Net fair value adjustments, 90 days or more past due	(1,749)	(861)
Net fair value adjustments, non-accrual loans		(107)
Fair value, past 90 days due	$ 375	154
Fair value, non-accrual loans		$ 15
Number of loans, 90 days past due | Loan	317	257
Number of loans, non-accrual loans | Loan		34

Loans Held For Investment, Lo51

Loans Held For Investment, Loans Held For Sale, Notes, Certificates and Secured Borrowings and Loan Servicing Rights - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Net interest income	[1]	$ (1,538)	$ 972
Loan commitment purchases		$ 793,200
Nonaccrual policy		90 days
Loans and Loans Held for Sale
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Nonaccrual policy		90 days		120 days
Loan Servicing Rights
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Principal balance of underlying loan servicing rights		$ 8,600,000		$ 8,200,000
Loans Invested in by Company
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Net change in fair value recorded in earnings on loans invested in by the Company		(28,477)	(1,417)
Outstanding Principal Balance, Sales		(742,732)	(4,229)
Outstanding Principal Balance, Principal payments and retirements		(62,612)	$ (2,664)
Natural Disasters and Other Casualty Events | Loans Invested in by Company
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Loans and loans held for sale		12,100		14,000
Fair Value, Measurements, Recurring | Loans Invested in by Company
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Net interest income		25,200
Aggregate principal balance outstanding		598,092		613,652
Loans and loans held for sale		565,802		597,055
Fair Value, Measurements, Recurring | Loans Invested in by Company | Loans Held For Sale
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Aggregate principal balance outstanding		258,477		242,273
Whole Loan Investors | Loans Invested in by Company
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Outstanding Principal Balance, Principal payments and retirements		(551,100)
Secured Borrowings | Loans Held for Investment
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Loans pledged as collateral		187,000		242,700
Fair value of loans pledged as collateral		175,400		228,100
Payables to Securitization Holders | Loans Held for Investment
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Loans pledged as collateral		328,200		359,400
Revolving Credit Facility | LendingClub Warehouse LLC | Warehouse Credit Facilities I and II [Member] | Loans Held For Sale
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Loans pledged as collateral		89,500		$ 62,100
Personal whole loans | Loans Invested in by Company
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Securities issued in securitization transaction, aggregate value		$ 191,600
[1]	Prior period amounts have been reclassified to conform to the current period presentation. See “Notes to Condensed Consolidated Financial Statements – Note 1. Basis of Presentation” for additional information.

Securitization and Variable I52

Securitization and Variable Interest Entities - Summary of Select Information Related to VIEs (Details) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Restricted cash (1)	[1]	$ 226,818	$ 242,570
Securities available for sale		128,424	117,573
Loans held for investment at fair value (1)	[1]	2,635,413	2,932,325
Loans held for investment by the Company at fair value (1)	[1]	317,458	361,230
Loans held for sale by the Company at fair value (1)	[1]	248,344	235,825
Accrued interest receivable (1)	[1]	27,012	33,822
Other assets (1)	[1]	106,870	156,278
Total assets		4,259,115	4,640,831
Accrued interest payable (1)	[1]	25,510	32,992
Accrued expenses and other liabilities (1)	[1]	196,517	228,380
Notes, certificates and secured borrowings at fair value (1)	[1]	2,655,417	2,954,768
Payable to securitization note and residual certificate holders	[1]	280,915	312,123
Payable to revolving credit facilities	[1]	74,000	32,100
Total liabilities		3,343,995	3,713,074
Consolidated VIEs
Variable Interest Entity [Line Items]
Restricted cash (1)		45,998	34,370
Securities available for sale		0	0
Loans held for investment at fair value (1)		1,043,223	1,202,260
Loans held for investment by the Company at fair value (1)		307,173	350,699
Loans held for sale by the Company at fair value (1)		86,156	60,812
Accrued interest receivable (1)		12,387	15,602
Other assets (1)		3,410	6,324
Total assets		1,498,347	1,670,067
Accrued interest payable (1)		11,196	14,789
Accrued expenses and other liabilities (1)		836	52
Notes, certificates and secured borrowings at fair value (1)		1,050,091	1,210,349
Payable to securitization note and residual certificate holders		280,915	312,123
Payable to revolving credit facilities		49,000	32,100
Total liabilities		1,392,038	1,569,413
Total net assets		106,309	100,654
Unconsolidated VIEs
Variable Interest Entity [Line Items]
Restricted cash (1)		0	0
Securities available for sale		66,010	47,049
Loans held for investment at fair value (1)		0	0
Loans held for investment by the Company at fair value (1)		0	0
Loans held for sale by the Company at fair value (1)		0	0
Accrued interest receivable (1)		789	407
Other assets (1)		17,492	15,779
Total assets		84,291	63,235
Accrued interest payable (1)		0	0
Accrued expenses and other liabilities (1)		0	300
Notes, certificates and secured borrowings at fair value (1)		0	0
Payable to securitization note and residual certificate holders		0	0
Payable to revolving credit facilities		0	0
Total liabilities		0	300
Total net assets		84,291	62,935
Total
Variable Interest Entity [Line Items]
Restricted cash (1)		45,998	34,370
Securities available for sale		66,010	47,049
Loans held for investment at fair value (1)		1,043,223	1,202,260
Loans held for investment by the Company at fair value (1)		307,173	350,699
Loans held for sale by the Company at fair value (1)		86,156	60,812
Accrued interest receivable (1)		13,176	16,009
Other assets (1)		20,902	22,103
Total assets		1,582,638	1,733,302
Accrued interest payable (1)		11,196	14,789
Accrued expenses and other liabilities (1)		836	352
Notes, certificates and secured borrowings at fair value (1)		1,050,091	1,210,349
Payable to securitization note and residual certificate holders		280,915	312,123
Payable to revolving credit facilities		49,000	32,100
Total liabilities		1,392,038	1,569,713
Total net assets		$ 190,600	$ 163,589
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Securitization and Variable I53

Securitization and Variable Interest Entities - Summary of Financial Asset and Liability Involvement with Consolidated VIEs (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Assets	$ 4,259,115	$ 4,640,831
Liabilities	(3,343,995)	(3,713,074)
Consolidated VIEs
Variable Interest Entity [Line Items]
Assets	1,498,347	1,670,067
Liabilities	(1,392,038)	(1,569,413)
Net Assets	106,309	100,654
Trust Certificates | Consolidated VIEs
Variable Interest Entity [Line Items]
Assets	1,063,936	1,226,957
Liabilities	(1,061,014)	(1,224,473)
Net Assets	2,922	2,484
Securitizations | Consolidated VIEs
Variable Interest Entity [Line Items]
Assets	330,530	375,607
Liabilities	(281,310)	(312,832)
Net Assets	49,220	62,775
Warehouse Credit Facilities | Consolidated VIEs
Variable Interest Entity [Line Items]
Assets	103,881	67,503
Liabilities	(49,714)	(32,108)
Net Assets	$ 54,167	$ 35,395

Securitization and Variable I54

Securitization and Variable Interest Entities - Unconsolidated VIEs with Significant Continuing Involvement (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	$ 6,000
Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	84,291	$ 63,535
Carrying Value, Assets	1,315,922	940,916
Carrying Value, Net Assets	84,291	62,935
Securitizations | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	63,835	51,393
Carrying Value, Assets	1,087,108	863,589
Carrying Value, Net Assets	63,835	50,793
CLUB Certificates | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	11,507	2,124
Carrying Value, Assets	192,565	36,833
Carrying Value, Net Assets	11,507	2,124
Investment Fund | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	8,949	10,018
Carrying Value, Assets	36,249	40,494
Carrying Value, Net Assets	8,949	10,018
Securities Available for Sale | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	66,010	47,049
Carrying Value, Assets	66,010	47,049
Securities Available for Sale | Securitizations | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	56,232	45,256
Carrying Value, Assets	56,232	45,256
Securities Available for Sale | CLUB Certificates | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	9,778	1,793
Carrying Value, Assets	9,778	1,793
Securities Available for Sale | Investment Fund | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	0	0
Carrying Value, Assets	0	0
Accrued Interest Receivable | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	789	407
Carrying Value, Assets	789	407
Accrued Interest Receivable | Securitizations | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	738	391
Carrying Value, Assets	738	391
Accrued Interest Receivable | CLUB Certificates | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	51	16
Carrying Value, Assets	51	16
Accrued Interest Receivable | Investment Fund | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	0	0
Carrying Value, Assets	0	0
Other Assets | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	17,492	15,779
Carrying Value, Assets	17,492	15,779
Other Assets | Securitizations | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	6,865	5,446
Carrying Value, Assets	6,865	5,446
Other Assets | CLUB Certificates | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	1,678	315
Carrying Value, Assets	1,678	315
Other Assets | Investment Fund | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	8,949	10,018
Carrying Value, Assets	8,949	10,018
Accrued Expenses and Other Liabilities | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	0	300
Carrying Value, Liabilities	0	(300)
Securitizations | Accrued Expenses and Other Liabilities | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	0	300
Carrying Value, Liabilities	0	(300)
CLUB Certificates | Accrued Expenses and Other Liabilities | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	0	0
Carrying Value, Liabilities	0	0
Investment Fund | Accrued Expenses and Other Liabilities | Unconsolidated VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	0	0
Carrying Value, Liabilities	$ 0	$ 0

Securitization and Variable I55

Securitization and Variable Interest Entities - Summary of Personal Whole Loan Securitizations and Sales (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 06, 2017
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Fair value of senior securities and subordinated certificates retained upon settlement (1)	$ 128,424		$ 117,573
Personal Whole Loan Securitization
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Principal derecognized from loans securitized or sold	355,248	$ 0		$ 368,000
Net gains (losses) recognized from loans securitized or sold	3,097	0
Fair value of senior securities and subordinated certificates retained upon settlement (1)	18,493	0
Cash proceeds from loans securitized or sold	283,272	0
Cash proceeds from servicing and other administrative fees on loans securitized or sold	2,350	0
Cash proceeds for interest received on senior securities and subordinated certificates	296	0
Personal Whole Loan Securitization | Senior securities
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Interests retained by the Company	15,100
Personal Whole Loan Securitization | Subordinated residual certificates
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Interests retained by the Company	3,400
Personal Whole Loan CLUB Certificates
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities [Line Items]
Principal derecognized from loans securitized or sold	161,875	0
Net gains (losses) recognized from loans securitized or sold	1,457	0
Fair value of senior securities and subordinated certificates retained upon settlement (1)	8,102	0
Cash proceeds from loans securitized or sold	154,839	0
Cash proceeds from servicing and other administrative fees on loans securitized or sold	135	0
Cash proceeds for interest received on senior securities and subordinated certificates	$ 82	$ 0

Securitization and Variable I56

Securitization and Variable Interest Entities - Off-balance Sheet Loans Sold or Securitized (Details) - Off-balance Sheet Loans - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Outstanding principal balance	$ 1,300	$ 900.4
Off-balance sheet loans, principal amount outstanding, past due	$ 34.2	$ 26.5

Securitization and Variable I57

Securitization and Variable Interest Entities - Fair Value Sensitivity (Details) - Asset-backed securities - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Senior securities
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Fair value of interests held	$ 45,881	$ 37,020
Expected weighted-average life (in years)	8 months	1 year
Discount rates, 100 basis point increase	$ (442)	$ (326)
Discount rates, 200 basis point increase	(875)	(644)
Expected credit loss on rates on underlying loans, 10% adverse change	0	(1)
Expected credit loss on rates on underlying loans, 20% adverse change	0	(2)
Expected prepayment rates, 10% adverse change	0	(1)
Expected prepayment rates, 20% adverse change	0	(3)
Subordinated residual certificates
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Fair value of interests held	$ 10,351	$ 8,236
Expected weighted-average life (in years)	1 year 7 months	1 year 6 months
Discount rates, 100 basis point increase	$ (127)	$ (105)
Discount rates, 200 basis point increase	(250)	(208)
Expected credit loss on rates on underlying loans, 10% adverse change	(1,454)	(1,060)
Expected credit loss on rates on underlying loans, 20% adverse change	(2,875)	(2,118)
Expected prepayment rates, 10% adverse change	(507)	(265)
Expected prepayment rates, 20% adverse change	(988)	(513)
CLUB Certificates
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Fair value of interests held	$ 9,778	$ 1,793
Expected weighted-average life (in years)	1 year 3 months	1 year 5 months
Discount rates, 100 basis point increase	$ (119)	$ (41)
Discount rates, 200 basis point increase	(236)	(76)
Expected credit loss on rates on underlying loans, 10% adverse change	(171)	(15)
Expected credit loss on rates on underlying loans, 20% adverse change	(308)	(25)
Expected prepayment rates, 10% adverse change	(77)	(21)
Expected prepayment rates, 20% adverse change	$ (120)	$ (42)

Fair Value of Assets and Liab58

Fair Value of Assets and Liabilities - Loans, Loan Servicing Rights, Related Notes and Certificates (Detail) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	[1]	$ 2,635,413	$ 2,932,325
Loans held for investment by the Company	[1]	317,458	361,230
Loans held for sale by the Company	[1]	248,344	235,825
Securities available for sale		128,424	117,573
Servicing assets		40,884	33,676
Total assets		3,370,523	3,680,629
Notes, certificates and secured borrowings	[1]	2,655,417	2,954,768
Payable to securitization residual certificate holders		1,354	1,479
Loan trailing fee liability		475	833
Loan trailing fee liability		8,824	8,432
Total liabilities		2,666,070	2,965,512
Asset-backed senior securities related to Company-sponsored securitizations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		45,881	37,020
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		20,303	24,758
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		19,840	16,258
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		14,586	14,843
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		7,685	14,665
Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		20,129	10,029
Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment		0	0
Loans held for investment by the Company		0	0
Loans held for sale by the Company		0	0
Securities available for sale		0	0
Servicing assets		0	0
Total assets		0	0
Notes, certificates and secured borrowings		0	0
Payable to securitization residual certificate holders		0	0
Loan trailing fee liability		0	0
Loan trailing fee liability		0	0
Total liabilities		0	0
Level 1 Inputs | Asset-backed senior securities related to Company-sponsored securitizations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 1 Inputs | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 1 Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 1 Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 1 Inputs | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 1 Inputs | Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment		0	0
Loans held for investment by the Company		0	0
Loans held for sale by the Company		0	0
Securities available for sale		108,295	107,544
Servicing assets		0	0
Total assets		108,295	107,544
Notes, certificates and secured borrowings		0	0
Payable to securitization residual certificate holders		0	0
Loan trailing fee liability		0	0
Loan trailing fee liability		0	0
Total liabilities		0	0
Level 2 Inputs | Asset-backed senior securities related to Company-sponsored securitizations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		45,881	37,020
Level 2 Inputs | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		20,303	24,758
Level 2 Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		19,840	16,258
Level 2 Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		14,586	14,843
Level 2 Inputs | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		7,685	14,665
Level 2 Inputs | Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment		2,635,413	2,932,325
Loans held for investment by the Company		317,458	361,230
Loans held for sale by the Company		248,344	235,825
Securities available for sale		20,129	10,029
Servicing assets		40,884	33,676
Total assets		3,262,228	3,573,085
Notes, certificates and secured borrowings		2,655,417	2,954,768
Payable to securitization residual certificate holders		1,354	1,479
Loan trailing fee liability		475	833
Loan trailing fee liability		8,824	8,432
Total liabilities		2,666,070	2,965,512
Level 3 Inputs | Asset-backed senior securities related to Company-sponsored securitizations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 3 Inputs | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 3 Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 3 Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 3 Inputs | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0	0
Level 3 Inputs | Asset-backed subordinated residual certificates related to Company-sponsored securitizations and CLUB Certificate transactions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		$ 20,129	$ 10,029
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Fair Value of Assets and Liab59

Fair Value of Assets and Liabilities - Quantitative Information about Significant Unobservable Inputs Used for Fair Value Measurements (Detail) - Level 3 Inputs	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Minimum | Servicing Assets/Liabilities
Fair Value Inputs [Abstract]
Discount rates	3.40%	1.90%
Net cumulative expected loss rates	0.40%	0.40%
Cumulative prepayment rates	11.30%	11.30%
Total market servicing rates (percent per annum on outstanding principal balance)	0.66%	0.66%
Maximum | Servicing Assets/Liabilities
Fair Value Inputs [Abstract]
Discount rates	16.50%	17.10%
Net cumulative expected loss rates	42.10%	41.80%
Cumulative prepayment rates	52.30%	51.00%
Total market servicing rates (percent per annum on outstanding principal balance)	0.90%	0.90%
Weighted- Average | Servicing Assets/Liabilities
Fair Value Inputs [Abstract]
Discount rates	8.90%	8.80%
Net cumulative expected loss rates	12.30%	12.40%
Cumulative prepayment rates	32.00%	31.70%
Total market servicing rates (percent per annum on outstanding principal balance)	0.66%	0.66%
Loans Held for Investment, Loans Held for Sale, Notes, Certificates and Secured Borrowings | Minimum
Fair Value Inputs [Abstract]
Discount rates	2.70%	1.70%
Net cumulative expected loss rates	0.40%	0.40%
Cumulative prepayment rates	11.30%	11.30%
Loans Held for Investment, Loans Held for Sale, Notes, Certificates and Secured Borrowings | Maximum
Fair Value Inputs [Abstract]
Discount rates	16.70%	17.20%
Net cumulative expected loss rates	42.10%	41.80%
Cumulative prepayment rates	52.30%	51.00%
Loans Held for Investment, Loans Held for Sale, Notes, Certificates and Secured Borrowings | Weighted- Average
Fair Value Inputs [Abstract]
Discount rates	8.90%	8.50%
Net cumulative expected loss rates	13.80%	13.80%
Cumulative prepayment rates	31.30%	31.60%
Asset-Backed Securities Related to Consolidated VIEs | Minimum
Fair Value Inputs [Abstract]
Discount rates	3.20%	5.80%
Net cumulative expected loss rates	5.20%	10.90%
Cumulative prepayment rates	25.70%	28.30%
Asset-Backed Securities Related to Consolidated VIEs | Maximum
Fair Value Inputs [Abstract]
Discount rates	15.00%	15.00%
Net cumulative expected loss rates	38.70%	37.20%
Cumulative prepayment rates	34.20%	33.70%
Asset-Backed Securities Related to Consolidated VIEs | Weighted- Average
Fair Value Inputs [Abstract]
Discount rates	7.40%	9.50%
Net cumulative expected loss rates	13.30%	19.70%
Cumulative prepayment rates	30.30%	30.50%
Loan Trailing Fee Liability | Minimum
Fair Value Inputs [Abstract]
Discount rates	3.40%	1.90%
Net cumulative expected loss rates	0.80%	0.80%
Cumulative prepayment rates	11.30%	11.30%
Loan Trailing Fee Liability | Maximum
Fair Value Inputs [Abstract]
Discount rates	16.50%	17.10%
Net cumulative expected loss rates	42.10%	41.80%
Cumulative prepayment rates	52.30%	51.00%
Loan Trailing Fee Liability | Weighted- Average
Fair Value Inputs [Abstract]
Discount rates	9.20%	8.90%
Net cumulative expected loss rates	13.10%	13.20%
Cumulative prepayment rates	31.60%	31.40%

Fair Value of Assets and Liab60

Fair Value of Assets and Liabilities - Additional Information about Loans, Notes, Certificates and Secured Borrowings Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Loans Held for Investment
Loans
Outstanding Principal Balance, Beginning	$ 3,141,391	$ 4,547,138
Valuation Adjustment, Beginning	(209,066)	(252,017)
Fair Value, Beginning	2,932,325	4,295,121
Outstanding Principal Balance, Purchases	292,114	523,235
Valuation Adjustment, Purchases	9	2
Fair Value, Purchases	292,123	523,237
Outstanding Principal Balance, Issuances	0	0
Valuation Adjustment, Issuances	0	0
Fair Value, Issuances	0	0
Outstanding Principal Balance, Sales	0	0
Valuation Adjustment, Sales	0	0
Fair Value, Sales	0	0
Outstanding Principal Balance, Principal payments and retirements	(500,949)	(638,235)
Valuation Adjustment, Principal payments	0	0
Fair Value, Principal payments and retirements	(500,949)	(638,235)
Outstanding Principal Balance, Charge-offs	(102,791)	(136,810)
Valuation Adjustment, Charge-offs	102,791	136,810
Fair Value, Charge-offs	0	0
Outstanding Principal Balance, Recoveries	0	0
Valuation Adjustment, Recoveries	(17,459)	(10,790)
Fair Value, Recoveries	(17,459)	(10,790)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Principal, Gain (Loss) Included in Earnings	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Valuation Adjustment, Gain (Loss) Included in Earnings	(70,627)	(157,950)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	(70,627)	(157,950)
Outstanding Principal Balance, Ending	2,829,765	4,295,328
Valuation Adjustment, Ending	(194,352)	(283,945)
Fair Value, Ending	2,635,413	4,011,383
Loans Held For Sale
Loans
Outstanding Principal Balance, Beginning	0	0
Valuation Adjustment, Beginning	0	0
Fair Value, Beginning	0	0
Outstanding Principal Balance, Purchases	1,133,277	1,170,207
Valuation Adjustment, Purchases	(1,772)	0
Fair Value, Purchases	1,131,505	1,170,207
Outstanding Principal Balance, Issuances	0	0
Valuation Adjustment, Issuances	0	0
Fair Value, Issuances	0	0
Outstanding Principal Balance, Sales	(1,133,277)	(1,170,207)
Valuation Adjustment, Sales	835	0
Fair Value, Sales	(1,132,442)	(1,170,207)
Outstanding Principal Balance, Principal payments and retirements	0	0
Valuation Adjustment, Principal payments	0	0
Fair Value, Principal payments and retirements	0	0
Outstanding Principal Balance, Charge-offs	0	0
Valuation Adjustment, Charge-offs	0	0
Fair Value, Charge-offs	0	0
Outstanding Principal Balance, Recoveries	0	0
Valuation Adjustment, Recoveries	0	0
Fair Value, Recoveries	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Principal, Gain (Loss) Included in Earnings	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Valuation Adjustment, Gain (Loss) Included in Earnings	937	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	937	0
Outstanding Principal Balance, Ending	0	0
Valuation Adjustment, Ending	0	0
Fair Value, Ending	0	0
Notes, Certificates and Secured Borrowings
Notes and Certificates
Outstanding Principal Balance, Beginning	3,161,080	4,572,912
Valuation Adjustment, Beginning	(206,312)	(252,017)
Fair value at beginning of period	2,954,768	4,320,895
Outstanding Principal Balance, Purchases	0	0
Valuation Adjustment, Purchases	0	0
Fair Value, Purchases	0	0
Outstanding Principal Balance, Issuances	292,461	523,305
Valuation Adjustment, Issuances	0	0
Fair Value, Issuances	292,461	523,305
Outstanding Principal Balance, Sales	0	0
Valuation Adjustment, Sales	0	0
Fair Value, Sales	0	0
Outstanding Principal Balance, Principal payments and retirements	(503,710)	(641,105)
Valuation Adjustment, Principal payments and retirements	8	2
Fair Value, Principal payments and retirements	(503,702)	(641,103)
Outstanding Principal Balance, Charge-offs	(102,791)	(136,810)
Valuation Adjustment, Charge-offs	102,791	136,810
Fair Value, Charge-offs	0	0
Outstanding Principal Balance, Recoveries	0	0
Valuation Adjustment, Recoveries	(17,459)	(10,790)
Fair Value, Recoveries	(17,459)	(10,790)
Outstanding Principal Balance, Change in fair value recorded in earnings	0	0
Valuation Adjustment, Change in fair value recorded in earnings	(70,651)	(157,950)
Fair Value, Change in fair value recorded in earnings	(70,651)	(157,950)
Outstanding Principal Balance, Ending	2,847,040	4,318,302
Valuation Adjustment, Ending	(191,623)	(283,945)
Fair value at end of period	2,655,417	4,034,357
Loans Invested in by Company
Loans
Outstanding Principal Balance, Beginning	613,652	27,860
Valuation Adjustment, Beginning	(16,597)	(1,949)
Fair Value, Beginning	597,055	25,911
Outstanding Principal Balance, Purchases	793,171	7,129
Valuation Adjustment, Purchases	(440)	(7)
Fair Value, Purchases	792,731	7,122
Outstanding Principal Balance, Transfers from loans to loans held for sale	0
Valuation Adjustment, Transfers from loans to loans held for sale	0
Fair Value, Transfers from loans to loans held for sale	0
Outstanding Principal Balance, Sales	(742,732)	(4,229)
Valuation Adjustment, Sales	10,048	157
Fair Value, Sales	(732,684)	(4,072)
Outstanding Principal Balance, Principal payments and retirements	(62,612)	(2,664)
Valuation Adjustment, Principal payments	0	0
Fair Value, Principal payments and retirements	(62,612)	(2,664)
Outstanding Principal Balance, Charge-offs	(3,387)	(1,448)
Valuation Adjustment, Charge-offs	3,387	1,448
Fair Value, Charge-offs	0	0
Outstanding Principal Balance, Recoveries	0	0
Valuation Adjustment, Recoveries	(211)	(99)
Fair Value, Recoveries	(211)	(99)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Principal, Gain (Loss) Included in Earnings	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Valuation Adjustment, Gain (Loss) Included in Earnings	(28,477)	(1,417)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	(28,477)	(1,417)
Outstanding Principal Balance, Ending	598,092	26,648
Valuation Adjustment, Ending	(32,290)	(1,867)
Fair Value, Ending		24,781
Loans Invested in by Company | Loans Held for Investment
Loans
Outstanding Principal Balance, Beginning	371,379	18,515
Valuation Adjustment, Beginning	(10,149)	(1,652)
Fair Value, Beginning	361,230	16,863
Outstanding Principal Balance, Purchases	1,496	1,181
Valuation Adjustment, Purchases	(160)	(6)
Fair Value, Purchases	1,336	1,175
Outstanding Principal Balance, Transfers from loans to loans held for sale	106
Valuation Adjustment, Transfers from loans to loans held for sale	0
Fair Value, Transfers from loans to loans held for sale	106
Outstanding Principal Balance, Sales	0	0
Valuation Adjustment, Sales	0	0
Fair Value, Sales	0	0
Outstanding Principal Balance, Principal payments and retirements	(32,194)	(1,484)
Valuation Adjustment, Principal payments	0	0
Fair Value, Principal payments and retirements	(32,194)	(1,484)
Outstanding Principal Balance, Charge-offs	(1,172)	(1,288)
Valuation Adjustment, Charge-offs	1,172	1,288
Fair Value, Charge-offs	0	0
Outstanding Principal Balance, Recoveries	0	0
Valuation Adjustment, Recoveries	(199)	(99)
Fair Value, Recoveries	(199)	(99)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Principal, Gain (Loss) Included in Earnings	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Valuation Adjustment, Gain (Loss) Included in Earnings	(12,821)	(1,083)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	(12,821)	(1,083)
Outstanding Principal Balance, Ending	339,615	16,924
Valuation Adjustment, Ending	(22,157)	(1,552)
Fair Value, Ending	317,458	15,372
Loans Invested in by Company | Loans Held For Sale
Loans
Outstanding Principal Balance, Beginning	242,273	9,345
Valuation Adjustment, Beginning	(6,448)	(297)
Fair Value, Beginning	235,825	9,048
Outstanding Principal Balance, Purchases	791,675	5,948
Valuation Adjustment, Purchases	(280)	(1)
Fair Value, Purchases	791,395	5,947
Outstanding Principal Balance, Transfers from loans to loans held for sale	(106)
Valuation Adjustment, Transfers from loans to loans held for sale	0
Fair Value, Transfers from loans to loans held for sale	(106)
Outstanding Principal Balance, Sales	(742,732)	(4,229)
Valuation Adjustment, Sales	10,048	157
Fair Value, Sales	(732,684)	(4,072)
Outstanding Principal Balance, Principal payments and retirements	(30,418)	(1,180)
Valuation Adjustment, Principal payments	0	0
Fair Value, Principal payments and retirements	(30,418)	(1,180)
Outstanding Principal Balance, Charge-offs	(2,215)	(160)
Valuation Adjustment, Charge-offs	2,215	160
Fair Value, Charge-offs	0	0
Outstanding Principal Balance, Recoveries	0	0
Valuation Adjustment, Recoveries	(12)	0
Fair Value, Recoveries	(12)	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Principal, Gain (Loss) Included in Earnings	0	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Valuation Adjustment, Gain (Loss) Included in Earnings	(15,656)	(334)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	(15,656)	(334)
Outstanding Principal Balance, Ending	258,477	9,724
Valuation Adjustment, Ending	(10,133)	(315)
Fair Value, Ending	$ 248,344	$ 9,409

Fair Value of Assets and Liab61

Fair Value of Assets and Liabilities - Additional Information about Servicing Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Servicing Assets, Changes in fair value due to:
Fair value at beginning of period	$ 33,676
Fair value at end of period	40,884
Servicing Liabilities, Changes in fair value due to:
Fair value at beginning of period	833
Fair value at end of period	475
Fair Value, Measurements, Recurring
Servicing Assets, Changes in fair value due to:
Fair value at beginning of period	33,676	$ 21,398
Issuances	11,980	5,317
Changes in fair value, included in servicing fees	(5,606)	(4,047)
Other net changes included in deferred revenue	834	(308)
Fair value at end of period	40,884	22,360
Servicing Liabilities, Changes in fair value due to:
Fair value at beginning of period	833	2,846
Issuances	0	274
Change in fair value, included in investor fees	(358)	(809)
Other net changes included in deferred revenue	0	0
Fair value at end of period	$ 475	$ 2,311

Fair Value of Assets and Liab62

Fair Value of Assets and Liabilities - Trailing Fee Liability (Details) - Loan Trailing Fee Liability - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	$ 8,432	$ 4,913
Issuances	1,775	1,663
Cash payment of loan trailing fee	(1,554)	(826)
Change in fair value, included in origination and servicing	171	64
Fair value at end of period	$ 8,824	$ 5,814

Fair Value of Assets and Liab63

Fair Value of Assets and Liabilities - Sensitivity of Fair Value of Loans Invested in by the Company (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Loans Invested in by Company
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of loans invested in by the Company		$ 597,055	$ 24,781	$ 25,911
Loans Invested in by Company | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of loans invested in by the Company	$ 565,802	$ 597,055
Expected weighted-average life (in years)	1 year 6 months	1 year 6 months
Minimum | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impact of adverse change in discount rate	$ (6,708)	$ (7,449)
Impact of adverse change in discount rate (percent)	1.00%
Impact of adverse change in credit loss rates on underlying loans	$ (9,249)	(10,090)
Impact of adverse change in credit loss rates on underlying loans (percent)	10.00%
Impact of adverse change in expected prepayment rates	$ (2,355)	(3,548)
Impact of adverse change in expected prepayment rates (percent)	10.00%
Maximum | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impact of adverse change in discount rate	$ (13,258)	(14,715)
Impact of adverse change in discount rate (percent)	2.00%
Impact of adverse change in credit loss rates on underlying loans	$ (18,356)	(18,935)
Impact of adverse change in credit loss rates on underlying loans (percent)	20.00%
Impact of adverse change in expected prepayment rates	$ (4,616)	$ (5,894)
Impact of adverse change in expected prepayment rates (percent)	20.00%

Fair Value of Assets and Liab64

Fair Value of Assets and Liabilities - Additional Information about Servicing Assets and Liabilities Measured Using Different Market Servicing Rates and Different Prepayment (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Change in rate	0.10%	0.10%
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted-average total market servicing rate assumptions	0.66%	0.66%
Assets, servicing rate increase by .1%	$ (8,340)	$ (7,749)
Liabilities, servicing rate increase by .1%	154	233
Assets, servicing rate decrease by .1%	8,343	7,760
Liabilities, servicing rate decrease by .1%	$ (151)	$ (222)

Fair Value of Assets and Liab65

Fair Value of Assets and Liabilities - Not Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	$ 3,370,523	$ 3,680,629
Payable to securitization residual certificate holders	1,354	1,479
Total liabilities	2,666,070	2,965,512
Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	0	0
Payable to securitization residual certificate holders	0	0
Total liabilities	0	0
Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	108,295	107,544
Payable to securitization residual certificate holders	0	0
Total liabilities	0	0
Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	3,262,228	3,573,085
Payable to securitization residual certificate holders	1,354	1,479
Total liabilities	2,666,070	2,965,512
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	405,078	401,719
Restricted cash	226,818	242,570
Servicer reserve receivable	5,895	13,685
Deposits	855	855
Total assets	638,646	658,829
Accrued expenses and other liabilities	14,014	13,856
Accounts payable	3,389	11,151
Payables to investors	108,247	143,310
Payable to securitization residual certificate holders	279,561	310,644
Warehouse notes payable	74,000	32,100
Total liabilities	479,211	511,061
Portion Not Recorded at Fair Value | Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Restricted cash	0	0
Servicer reserve receivable	0	0
Deposits	0	0
Total assets	0	0
Accrued expenses and other liabilities	0	0
Accounts payable	0	0
Payables to investors	0	0
Payable to securitization residual certificate holders	0	0
Warehouse notes payable	0	0
Total liabilities	0	0
Portion Not Recorded at Fair Value | Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	405,078	401,719
Restricted cash	226,818	242,570
Servicer reserve receivable	5,895	13,685
Deposits	855	855
Total assets	638,646	658,829
Accrued expenses and other liabilities	0	0
Accounts payable	3,389	11,151
Payables to investors	108,247	143,310
Payable to securitization residual certificate holders	279,561	310,644
Warehouse notes payable	0	0
Total liabilities	391,197	465,105
Portion Not Recorded at Fair Value | Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Restricted cash	0	0
Servicer reserve receivable	0	0
Deposits	0	0
Total assets	0	0
Accrued expenses and other liabilities	14,014	13,856
Accounts payable	0	0
Payables to investors	0	0
Payable to securitization residual certificate holders	0	0
Warehouse notes payable	74,000	32,100
Total liabilities	88,014	45,956
Balance at Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	405,078	401,719
Restricted cash	226,818	242,570
Servicer reserve receivable	5,895	13,685
Deposits	855	855
Total assets	638,646	658,829
Accrued expenses and other liabilities	14,014	13,856
Accounts payable	3,389	11,151
Payables to investors	108,247	143,310
Payable to securitization residual certificate holders	279,561	310,644
Warehouse notes payable	74,000	32,100
Total liabilities	$ 479,211	$ 511,061

Property, Equipment and Softw66

Property, Equipment and Software, Net (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Internally developed software	$ 112,169	$ 107,370
Leasehold improvements	27,190	26,949
Computer equipment	21,391	20,324
Purchased software	8,151	8,284
Furniture and fixtures	7,613	7,567
Construction in progress	2,296	1,202
Total property, equipment and software	178,810	171,696
Accumulated depreciation and amortization	(71,633)	(69,763)
Total property, equipment and software, net	107,177	101,933
Construction in Progress
Property, Plant and Equipment [Line Items]
Internally developed software	$ 12,400	$ 10,700

Property, Equipment and Softw67

Property, Equipment and Software, Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 11,701	$ 10,254
Property, Equipment and Software
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 10,300	$ 9,100

Other Assets (Detail)

Other Assets (Detail) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Other Assets [Abstract]
Other assets	[1]	$ 106,870	$ 156,278
Loan servicing assets, at fair value
Other Assets [Abstract]
Other assets		40,884	33,676
Prepaid expenses
Other Assets [Abstract]
Other assets		21,457	23,427
Accounts receivable
Other Assets [Abstract]
Other assets		10,353	10,005
Insurance reimbursements receivable
Other Assets [Abstract]
Other assets		9,550	52,119
Other investments
Other Assets [Abstract]
Other assets		9,199	10,268
Servicer reserve receivable
Other Assets [Abstract]
Other assets		5,895	13,685
Deferred financing costs
Other Assets [Abstract]
Other assets		3,749	2,952
Receivable from investors
Other Assets [Abstract]
Other assets		2,024	2,318
Other
Other Assets [Abstract]
Other assets		$ 3,759	$ 7,828
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Intangible Assets and Goodwill

Intangible Assets and Goodwill - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2018USD ($)reporting_unit		Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets, net	$ 20,888,000			$ 21,923,000
Amortization expense	1,000,000		$ 1,200,000
Goodwill	$ 35,633,000			$ 35,633,000
Number of reporting units | reporting_unit	1
Goodwill impairment	$ 0	[1]	$ 0
[1]	Prior period amounts have been reclassified to conform to the current period presentation. See “Notes to Condensed Consolidated Financial Statements – Note 1. Basis of Presentation” for additional information.

Accrued Expenses and Other Li70

Accrued Expenses and Other Liabilities (Detail) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Contingent liabilities		$ 101,889	$ 129,887
Accrued expenses		30,667	21,317
Accrued compensation		16,438	30,549
Transaction fee refund reserve		15,088	14,528
Deferred rent		14,831	14,734
Loan trailing fee liability, at fair value		8,824	8,432
Deferred revenue		4,315	3,415
Payable to issuing banks		1,015	1,894
Loan servicing liabilities, at fair value		475	833
Other		2,975	2,791
Total accrued expenses and other liabilities	[1]	$ 196,517	$ 228,380
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Debt (Details)

Debt (Details)		Jan. 23, 2018USD ($)	Dec. 06, 2017USD ($)	Oct. 10, 2017USD ($)	Mar. 31, 2018USD ($)	Jun. 30, 2018	Dec. 31, 2017USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2015USD ($)	Dec. 17, 2015USD ($)
Debt Instrument [Line Items]
Debt outstanding under credit facility	[1]				$ 74,000,000		$ 32,100,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 120,000,000
Maximum rolling annual total net leverage ratio allowed										4
Debt outstanding under credit facility					$ 25,000,000		0
Debt issuance cost, capitalized, gross									$ 1,300,000
Revolving Credit Facility | Scenario, Forecast
Debt Instrument [Line Items]
Maximum rolling annual total net leverage ratio allowed						3
Minimum | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Borrowings interest rate spread (percent)					1.75%
Maximum | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Borrowings interest rate spread (percent)					2.00%
Warehouse Credit Facility I | LendingClub Warehouse LLC | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 250,000,000
Commitment fee (percent)				0.75%
Unused commitment fee (percent)					0.50%
Maximum rolling annual total net leverage ratio allowed				3.25
Debt outstanding under credit facility					$ 12,000,000		32,100,000
Restricted cash					$ 5,800,000		4,100,000
Debt issuance cost, capitalized, gross				$ 2,400,000
Warehouse Credit Facility I | LendingClub Warehouse LLC | Revolving Credit Facility | Scenario, Forecast
Debt Instrument [Line Items]
Maximum rolling annual total net leverage ratio allowed						3
Warehouse Credit Facility I | LendingClub Warehouse LLC | Minimum | Revolving Credit Facility
Debt Instrument [Line Items]
Unused commitment fee (percent)					0.25%
Warehouse Credit Facility I | LendingClub Warehouse LLC | Minimum | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Borrowings interest rate spread (percent)					2.00%
Warehouse Credit Facility I | LendingClub Warehouse LLC | Maximum | Revolving Credit Facility
Debt Instrument [Line Items]
Unused commitment fee (percent)					0.375%
Warehouse Credit Facility I | LendingClub Warehouse LLC | Maximum | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Borrowings interest rate spread (percent)					7.25%
Warehouse Credit Facility II | LendingClub Warehouse II LLC | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 200,000,000
Commitment fee (percent)		0.485%
Unused commitment fee (percent)		0.75%
Maximum rolling annual total net leverage ratio allowed		3.25
Debt outstanding under credit facility					$ 37,000,000
Restricted cash					$ 8,400,000
Debt issuance cost, capitalized, gross		$ 1,140,000
Warehouse Credit Facility II | LendingClub Warehouse II LLC | Revolving Credit Facility | Scenario, Forecast
Debt Instrument [Line Items]
Maximum rolling annual total net leverage ratio allowed						3
Warehouse Credit Facility II | LendingClub Warehouse II LLC | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Borrowings interest rate spread (percent)					1.00%
Used fee (percent)					2.50%
Payables to Securitization Holders
Debt Instrument [Line Items]
Restricted cash					$ 10,700,000		18,700,000
Loans Held For Sale | Warehouse Credit Facility I | LendingClub Warehouse LLC | Revolving Credit Facility
Debt Instrument [Line Items]
Loans pledged as collateral					35,600,000		62,100,000
Loans Held For Sale | Warehouse Credit Facility II | LendingClub Warehouse II LLC | Revolving Credit Facility
Debt Instrument [Line Items]
Loans pledged as collateral					53,900,000
Loans Held for Investment | Payables to Securitization Holders
Debt Instrument [Line Items]
Loans pledged as collateral					328,200,000		359,400,000
Personal Whole Loan Securitization
Debt Instrument [Line Items]
Principal derecognized from loans securitized or sold			$ 368,000,000		355,248,000			$ 0
Depositor | Personal Whole Loan Securitization
Debt Instrument [Line Items]
Proceeds from notes sold to third-party investors			$ 310,500,000
Notes | Depositor
Debt Instrument [Line Items]
Percentage of securities sold under securitization			95.00%
Residual Certificates | Depositor
Debt Instrument [Line Items]
Percentage of securities sold under securitization			4.10%
Payable to Securitization Note and Residual Certificate Holders | Personal Whole Loan Securitization
Debt Instrument [Line Items]
Debt issuance cost, capitalized			$ 2,900,000
Notes and residual certificates held by third-party investors					$ 280,900,000		$ 312,100,000
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Secured Borrowings (Details)

Secured Borrowings (Details)	1 Months Ended
	Oct. 31, 2017fund	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Schedule of Capitalization, Long-term Debt [Line Items]
Number of legacy funds included in sale of Certificates | fund	6
Legacy funds transferred that did not meet the definition of participating interests | fund	2
Secured borrowings - amount originally sold to investor		$ 179,300,000	$ 232,400,000
Fair value of credit support agreement		(2,700,000)	(2,800,000)
Secured Borrowings | Loans Held for Investment
Schedule of Capitalization, Long-term Debt [Line Items]
Loans pledged as collateral		$ 187,000,000	$ 242,700,000

Employee Incentive Plans - Sche

Employee Incentive Plans - Schedule of Stock-Based Compensation Expense Recorded for Stock Options, Warrants and Series F Convertible Preferred Stock (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 17,801	$ 19,498
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	1,860	2,299
Origination and servicing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	1,072	1,416
Engineering and product development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	5,279	6,588
Other general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	9,590	9,195
Stock issued related to acquisition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	0	134
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	2,567	4,345
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	14,793	14,634
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 441	$ 385

Employee Incentive Plans - Addi

Employee Incentive Plans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Internally Developed Software
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, capitalized amount	$ 2.2	$ 2.5
PBRSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PBRSU performance period	1 year
Minimum | PBRSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share target range (percent)	0.00%
Maximum | PBRSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share target range (percent)	200.00%
One-half of Grant Vesting in One Year Following Completion of Performance Period [Member] | PBRSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PBRSU vesting period	1 year
One-half of Grant Vesting in Two Years Following Completion of Performance Period [Member] | PBRSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PBRSU vesting period	2 years

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)		Jan. 29, 2018USD ($)	Jul. 31, 2018USD ($)	Apr. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Aug. 31, 2016lawsuit	May 31, 2016lawsuit	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Mar. 31, 2017USD ($)	May 04, 2018USD ($)
Commitments and Contingencies [Line Items]
Rental expense								$ 4,300,000		$ 3,800,000
Sublease rental income								77,000		0
Minimum rent payments								4,000,000		3,600,000
Security deposit - cash					$ 800,000			800,000
Security deposit - letters of credit					5,500,000			$ 5,500,000
Loan purchase obligation period								2 days
Contingent loan purchase commitment limit					53,200,000			$ 53,200,000	$ 54,200,000
Commitment repurchases								1,600,000		900,000
Deposit					9,000,000			9,000,000
Principal balance					17,300,000			17,300,000	20,100,000
Fair value					15,500,000			15,500,000	18,200,000
Pledged and restricted to support contingent obligation					2,200,000			2,200,000	2,200,000
Maximum exposure					6,000,000			6,000,000
Credit loss coverage reserve					0			0	0
Number of lawsuits | lawsuit						2	2
Preliminary litigation settlement awarded to other party		$ 125,000,000
Litigation settlement to be paid from insurance		$ 47,750,000
Litigation settlement paid by insurance					38,200,000			38,200,000
Contingent liabilities					101,889,000			101,889,000	129,887,000
Other assets	[1]				106,870,000			106,870,000	156,278,000
Regulatory litigation expense								13,500,000	77,250,000	$ 0
Subsequent Event
Commitments and Contingencies [Line Items]
Remaining limit of contingent loan purchase commitment											$ 0
Litigation settlement paid by insurance				$ 9,600,000
Litigation settlement paid by the Company			$ 62,500,000	$ 14,750,000
Insurance reimbursements receivable
Commitments and Contingencies [Line Items]
Other assets					$ 9,550,000			$ 9,550,000	$ 52,119,000
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.

Commitments and Contingencies76

Commitments and Contingencies - Future Minimum Payments under Non-cancelable Operating Leases (Details) $ in Thousands	Mar. 31, 2018USD ($)
Operating Leases
2,018	$ 12,372
2,019	16,626
2,020	17,557
2,021	17,844
2,022	13,519
Thereafter	32,645
Total	110,563
Subleases
2,018	(233)
2,019	(39)
2,020	0
2,021	0
2,022	0
Thereafter	0
Total	(272)
Net
2,018	12,139
2,019	16,587
2,020	17,557
2,021	17,844
2,022	13,519
Thereafter	32,645
Total	$ 110,291

Segment Reporting (Details)

Segment Reporting (Details)	3 Months Ended
	Mar. 31, 2018customersegment
Segment Reporting Information [Line Items]
Number of reportable segments | segment	1
Sales Revenue, Net
Segment Reporting Information [Line Items]
Number of individual customers and investors accounting for more than 10% of revenue | customer	0

Related Party Transactions - Su

Related Party Transactions - Summary of Deposits and Withdrawals Made by Related Parties (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Dec. 31, 2017	Apr. 01, 2016
Related Party Transaction [Line Items]
Other assets	[1]	$ 106,870	$ 156,278
Related Party Fund | Affiliated Entity
Related Party Transaction [Line Items]
Expense		1,100
Related Party Fund | Investor fees - Funds and SMAs | Affiliated Entity
Related Party Transaction [Line Items]
Income		$ 67
Related Party Fund
Related Party Transaction [Line Items]
Equity method investment				$ 10,000
Ownership		25.00%
Board Member | Related Party Fund
Related Party Transaction [Line Items]
Ownership		0.00%
Related Party Fund
Related Party Transaction [Line Items]
Loans		$ 0
Other investment fund
Related Party Transaction [Line Items]
Other assets		8,900
Distribution Receivable due from Other Investments
Related Party Transaction [Line Items]
Other assets		$ 1,250
[1]	Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.