LendingClub (LC) 10-Q 8 Nov 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 31, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
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		414,869,736

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 384,381	$ 515,602
Restricted cash	182,844	177,810
Securities available for sale at fair value (includes $14,757 and $0 in consolidated VIEs, respectively)	219,285	287,137
Loans at fair value (includes $1,815,859 and $2,600,422 in consolidated VIEs, respectively)	3,413,893	4,311,984
Loans held for sale at fair value (includes $91,533 and $0 in consolidated VIEs, respectively)	265,925	9,048
Accrued interest receivable (includes $19,158 and $24,037 in consolidated VIEs, respectively)	36,125	40,299
Property, equipment and software, net	100,682	89,263
Intangible assets, net	22,957	26,211
Goodwill	35,633	35,633
Other assets	91,379	69,644
Total assets	4,753,104	5,562,631
Liabilities and Equity
Accounts payable	7,503	10,889
Accrued interest payable (includes $21,268 and $26,839 in consolidated VIEs, respectively)	37,978	43,574
Accrued expenses and other liabilities	98,301	85,619
Payable to investors	93,893	125,884
Notes and certificates at fair value (includes $1,919,694 and $2,616,023 in consolidated VIEs, respectively)	3,515,578	4,320,895
Total liabilities	3,753,253	4,586,861
Equity
Common stock, $0.01 par value; 900,000,000 shares authorized; 417,039,946 and 400,262,472 shares issued, respectively; 414,757,246 and 397,979,772 shares outstanding, respectively	4,170	4,003
Additional paid-in capital	1,306,604	1,226,206
Accumulated deficit	(297,412)	(234,187)
Treasury stock, at cost; 2,282,700 shares	(19,485)	(19,485)
Accumulated other comprehensive loss	(589)	(767)
Total LendingClub stockholders’ equity	993,288	975,770
Noncontrolling interests	6,563	0
Total equity	999,851	975,770
Total liabilities and equity	$ 4,753,104	$ 5,562,631

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value	$ 219,285	$ 287,137
Member loans at fair value, from consolidated trust	3,413,893	4,311,984
Loans held for sale	265,925	9,048
Accrued interest receivable from consolidated Trust	36,125	40,299
Accrued interest payable from consolidated Trust	37,978	43,574
Notes and certificates, at fair value from consolidated Trust	$ 3,515,578	$ 4,320,895
Common stock, par value ($ per share)	$ 0.01	$ 0.01
Common stock, shares authorized	900,000,000	900,000,000
Common stock, shares issued	417,039,946	400,262,472
Common stock, shares outstanding	414,757,246	397,979,772
Treasury stock, shares	2,282,700	2,282,700
Consolidated Trust
Fair Value	$ 14,757	$ 0
Member loans at fair value, from consolidated trust	1,815,859	2,600,422
Accrued interest receivable from consolidated Trust	19,158	24,037
Accrued interest payable from consolidated Trust	21,268	26,839
Notes and certificates, at fair value from consolidated Trust	1,919,694	2,616,023
Fair Value, Measurements, Recurring | Loans Held for Sale Related to LCAM Legacy Fund Wind-down
Loans held for sale	$ 91,533	$ 0

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($)		3 Months Ended				9 Months Ended
		Sep. 30, 2017		Sep. 30, 2016		Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Transaction fees		$ 121,905,000		$ 100,813,000		$ 327,911,000	$ 321,926,000
Investor fees		20,499,000	[1]	18,477,000	[1]	62,795,000	53,620,000
Other revenue (expense)		(225,000)	[1]	(7,158,000)	[1]	6,219,000	(10,965,000)
Other revenue (expense)
Interest income		151,532,000		171,868,000		469,788,000	529,432,000
Interest expense		(139,681,000)		(169,444,000)		(448,628,000)	(523,723,000)
Net interest income		11,851,000		2,424,000		21,160,000	5,709,000
Total net revenue		154,030,000		114,556,000		418,085,000	370,290,000
Operating expenses:
Sales and marketing		59,570,000		44,901,000		169,735,000	161,213,000
Origination and servicing		21,321,000		16,332,000		63,044,000	56,464,000
Engineering and product development		32,860,000		29,428,000		104,338,000	82,835,000
Other general and administrative		46,925,000		58,940,000		142,994,000	150,432,000
Goodwill impairment	[1]	0		1,650,000		0	37,050,000
Total operating expenses		160,676,000		151,251,000		480,111,000	487,994,000
Loss before income tax expense		(6,646,000)		(36,695,000)		(62,026,000)	(117,704,000)
Income tax expense (benefit)		13,000		(209,000)		(79,000)	(4,004,000)
Consolidated net loss		(6,659,000)		(36,486,000)		(61,947,000)	(113,700,000)
Less: Loss attributable to noncontrolling interests		(129,000)		0		(119,000)	0
LendingClub net loss		$ (6,530,000)		$ (36,486,000)		$ (61,828,000)	$ (113,700,000)
Net loss per share attributable to LendingClub: Basic ($ per share)		$ (0.02)		$ (0.09)		$ (0.15)	$ (0.30)
Net loss per share attributable to LendingClub: Diluted ($ per share)		$ (0.02)		$ (0.09)		$ (0.15)	$ (0.30)
Weighted-average common shares - Diluted (shares)		412,778,995		391,453,316		406,633,850	385,037,334
Weighted-average common shares - Basic (shares)		412,778,995		391,453,316		406,633,850	385,037,334
[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		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
LendingClub net income (loss)	$ (6,530)	$ (36,486)	$ (61,828)	$ (113,700)
Other comprehensive income (loss), before tax:
Net unrealized gain on securities available for sale	4	111	289	1,710
Other comprehensive income (loss), before tax	4	111	289	1,710
Income tax effect	0	46	114	696
Other comprehensive income (loss), net of tax	4	65	175	1,014
Less: Other comprehensive income (loss) attributable to noncontrolling interests	(3)	0	(3)	0
LendingClub other comprehensive income (loss), net of tax	7	65	178	1,014
LendingClub comprehensive income (loss)	(6,523)	(36,421)	(61,650)	(112,686)
Comprehensive income (loss) attributable to noncontrolling interests	(3)	0	(3)	0
Total comprehensive income (loss)	$ (6,526)	$ (36,421)	$ (61,653)	$ (112,686)

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	Accumulated Deficit	Total Equity	Non-controlling interest
Beginning balance (in shares) at Dec. 31, 2015		379,716,630		0
Beginning balance at Dec. 31, 2015	$ 1,041,860	$ 3,797	$ 1,127,951	$ 0	$ (1,671)	$ (88,217)	$ 1,041,860	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation and related tax effects	53,430		53,430				53,430
Stock option exercises and other (in shares)		16,002,465
Stock option exercises and other	10,969	$ 160	10,809				10,969
Treasury stock (in shares)		(2,282,700)		2,282,700
Treasury stock	(19,485)			$ (19,485)			(19,485)
ESPP purchase shares (in shares)		721,918
ESPP purchase shares	2,516	$ 7	2,509				2,516
Net unrealized gain on available for sale securities, net of tax	1,014				1,014		1,014
Excess tax benefit from share-based award activity	(62)		(62)				(62)
Net loss	(113,700)					(113,700)	(113,700)
Ending balance (in shares) at Sep. 30, 2016		394,158,313		2,282,700
Ending balance at Sep. 30, 2016	976,542	$ 3,964	1,194,637	$ (19,485)	(657)	(201,917)	976,542	0
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	62,078		63,475			(1,397)	62,078
Stock option exercises and other (in shares)		16,211,773
Stock option exercises and other	14,234	$ 162	14,072				14,234
ESPP purchase shares (in shares)		565,701
ESPP purchase shares	2,856	$ 5	2,851				2,856
Net unrealized gain on available for sale securities, net of tax	178				178		175	(3)
Contribution of interests in consolidated VIE							7,722	7,722
Dividends paid and return of capital to noncontrolling interests							1,037	1,037
Net loss	(61,828)					(61,828)	(61,947)	(119)
Ending balance (in shares) at Sep. 30, 2017		414,757,246		2,282,700
Ending balance at Sep. 30, 2017	$ 993,288	$ 4,170	$ 1,306,604	$ (19,485)	$ (589)	$ (297,412)	$ 999,851	$ 6,563

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($)		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016
Statement of Cash Flows [Abstract]
Consolidated net loss		$ (61,947,000)	$ (113,700,000)
Adjustments to reconcile consolidated net loss to net cash used for operating activities:
Net fair value adjustments of loans, loans held for sale, notes and certificates		11,363,000	1,684,000
Change in fair value of loan servicing liabilities		(1,947,000)	(3,028,000)
Change in fair value of loan servicing assets		16,083,000	7,092,000
Stock-based compensation, net		54,692,000	46,434,000
Excess tax benefit from share-based awards		0	62,000
Goodwill impairment charge	[1]	0	37,050,000
Depreciation and amortization		32,405,000	21,374,000
Gain on sales of loans		(25,306,000)	(10,531,000)
Other, net		2,093,000	758,000
Purchase of loans held for sale		(4,240,099,000)	(3,653,191,000)
Principal payments received on loans held for sale		24,860,000	2,860,000
Proceeds from sales of whole loans		3,955,878,000	3,635,330,000
Purchase of loans held for sale by consolidated VIE		(491,414,000)	0
Proceeds from sale of securities by consolidated VIE, net of underwriting fees and costs		569,443,000	0
Net change in operating assets and liabilities:
Accrued interest receivable		4,174,000	(2,720,000)
Other assets		(13,860,000)	(1,570,000)
Due from related parties		197,000	120,000
Accounts payable		(3,810,000)	1,888,000
Accrued interest payable		(5,596,000)	3,835,000
Accrued expenses and other liabilities		11,963,000	18,507,000
Net cash used for operating activities		(160,828,000)	(7,746,000)
Cash Flows from Investing Activities:
Purchases of loans		(1,407,664,000)	(2,086,228,000)
Principal payments received on loans		1,863,338,000	1,783,763,000
Proceeds from recoveries and sales of charged-off loans		34,808,000	27,451,000
Proceeds from sales of whole loans		2,118,000	22,274,000
Purchases of securities available for sale		(90,174,000)	(40,123,000)
Proceeds from maturities of securities available for sale		191,504,000	59,735,000
Proceeds from paydowns of asset-backed securities related to Company- sponsored securitization transactions		2,268,000	0
Investment in Cirrix Capital		0	(10,000,000)
Net change in restricted cash		(5,034,000)	(58,722,000)
Purchases of property, equipment and software, net		(31,751,000)	(39,044,000)
Net cash provided by (used for) investing activities		559,413,000	(340,894,000)
Cash Flows from Financing Activities:
Change in payable to investors		(31,991,000)	8,214,000
Proceeds from issuances of notes and certificates		1,389,999,000	2,041,746,000
Proceeds from secured borrowings		0	22,274,000
Repayments of secured borrowings		0	(22,274,000)
Principal payments and retirements of notes and certificates		(1,863,041,000)	(1,770,779,000)
Payments on notes and certificates from recoveries/sales of related charged-off loans		(34,550,000)	(26,871,000)
Repurchase of common stock		0	(19,485,000)
Proceeds from stock option exercises and other		14,265,000	10,580,000
Proceeds from issuance of common stock for ESPP		2,856,000	2,516,000
Excess tax benefit from share-based awards		0	(62,000)
Purchase of noncontrolling interests in consolidated VIE		(6,307,000)	0
Return of capital to noncontrolling interests in consolidated VIE		(999,000)	0
Dividends paid to noncontrolling interests in consolidated VIE		(38,000)	0
Other financing activities		0	17,000
Net cash (used for) provided by financing activities		(529,806,000)	245,876,000
Net Decrease in Cash and Cash Equivalents		(131,221,000)	(102,764,000)
Cash and Cash Equivalents, Beginning of Period		515,602,000	623,531,000
Cash and Cash Equivalents, End of Period		384,381,000	520,767,000
Supplemental Cash Flow Information:
Cash paid for interest		454,026,000	519,690,000
Accruals for property, equipment and software		1,360,000	2,610,000
Beneficial interests retained by consolidated VIE		36,065,000	0
Noncontrolling interests’ contribution of beneficial interests in consolidated VIE		$ 7,722,000	$ 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.

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation LendingClub Corporation (LendingClub) operates an online marketplace lending 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 (Certificates) issued by the Trust that are related to specific underlying loans for the benefit of the investor. LendingClub Warehouse I LLC (Warehouse) is a wholly-owned subsidiary of LendingClub established to enter into a warehouse credit agreement with certain lenders for a secured revolving credit facility. In connection with its role as the sponsor of an asset-backed securities securitization transaction, LendingClub owns a 56% interest in a majority-owned affiliate (MOA), LendingClub Operated Aggregator Note (LOAN) NP I, LLC. LendingClub holds a controlling financial interest and is the primary beneficiary of the MOA and consolidates the MOA in its financial statements. Additionally, in the third quarter of 2017, LendingClub established Consumer Loan Underlying Bond Depositor LLC (Depositor), a wholly-owned limited liability company, to facilitate LendingClub-sponsored asset-backed securities securitization transactions. For additional information about the Company’s securitization activities, see “Note 6. Securitizations of Personal Whole Loans.” 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 first quarter of 2017, the Company simplified the presentation of “Total net revenue” in the unaudited Condensed Consolidated Statements of Operations to present revenues from transactions with investors as a single line item reported as “Investor fees “ by aggregating the revenues previously separately reported as “Servicing fees” and “Management fees.” Additionally, the Company aggregated “Fair value adjustments – loans, loans held for sale, notes and certificates” into “Other revenue (expense).” 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, 2016 (Annual Report) filed on February 28, 2017.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2017
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 nine month period ended September 30, 2017 , except as noted below. Transfers of Financial Assets The Company accounts for transfers of financial assets as sales when it has surrendered control over the related assets. Whether control has been relinquished requires, among other things, an evaluation of relevant legal considerations and an assessment of the nature and extent of the Company’s continuing involvement with the assets transferred. Gains and losses resulting from transfers are included in “Other revenue” in the accompanying consolidated statements of operations. Assets obtained and liabilities incurred in connection with transfers reported as sales are initially recognized in the balance sheet at fair value. Transfers of financial assets that do not qualify for sale accounting are reported as secured borrowings. Accordingly, the related assets remain on the Company’s balance sheet and continue to be reported and accounted for as if the transfer had not occurred. Cash proceeds from these transfers are reported as liabilities, with related interest expense recognized over the life of the related transactions. Goodwill and Intangible Assets Goodwill represents the fair value of an acquired business in excess of the aggregate fair value of the identified net assets acquired. Goodwill is not amortized but is tested for impairment annually or whenever events or circumstances indicate that it is more likely than not that the estimated fair value of a reporting unit is below its carrying value. The Company’s annual impairment testing date is April 1. Impairment exists whenever the carrying value of goodwill exceeds its estimated fair value. Adverse changes in impairment indicators such as loss of key personnel, lower than forecast financial performance, increased competition, increased regulatory oversight, or unplanned changes in operations could result in impairment. The Company can elect to qualitatively assess goodwill for impairment if it is more likely than not that the estimated fair value of a reporting unit (generally defined as a component of a business for which financial information is available and reviewed regularly by management) exceeds its carrying value. A qualitative assessment may consider macroeconomic and other industry-specific factors, such as trends in short-term and long-term interest rates and the ability to access capital or company-specific factors, such as market capitalization in excess of net assets, trends in revenue-generating activities and merger or acquisition activity. If the Company does not qualitatively assess goodwill it compares a reporting unit’s estimated fair value to its carrying value. The Company estimates the fair value of a reporting unit using both an income approach and a market approach. The Company relies on the income approach (discounted cash flow method) as the primary method for determining estimated fair value. Market-based methods are used as benchmarks to corroborate the estimated fair value determined by the discounted cash flow method. Both the income approach and the market approach rely on long-term growth rates, and revenue and earnings projections. When applying the income approach, the Company uses a discounted cash flow model, which requires the estimation of cash flows and an appropriate discount rate. The Company projects cash flows expected to be generated by a reporting unit inclusive of an estimated terminal value. The discount rate assumption contemplates a weighted-average cost of capital based on both market observable and company-specific factors. The discount rate is risk-adjusted to include any premiums related to equity price volatility, size, and projected capital structure of publicly traded companies in similar lines of business. The Company relies on several assumptions when estimating the fair value of a reporting unit using the discounted cash flow method. These assumptions include the current discount rate discussed above, as well as transaction fee revenue based on projected loan origination growth, ongoing network provider participation, projected operating expenses and contribution margin, capital expenditures and income taxes. The Company believes these assumptions to be representative of assumptions that a market participant would use in valuing a reporting unit, but these assumptions are inherently uncertain. If the assumptions regarding business operating plans, projected loan origination growth and transaction fee rates, operating expenses, or competition in the industry are not achieved, the Company may be required to record goodwill impairment charges in future periods. There can be no assurances that future estimates and assumptions made for purposes of goodwill impairment testing will prove accurate predictions of the future. The market approach estimates the fair value of a reporting unit based on certain market value multiples of publicly traded companies in similar lines of business, such as total enterprise value to revenue, or to EBITDA. Under the market approach, the Company also considers fair value implied from any relevant and comparable market transactions. Intangible assets are amortized over their useful lives in a manner that best reflects their economic benefit, which may include straight-line or accelerated methods of amortization. Intangible assets are reviewed for impairment quarterly and whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. The Company does not have any indefinite-lived intangible assets. Noncontrolling Interests Noncontrolling interests represent the noncontrolling holders’ share of income or losses, and share of total equity, from a consolidated subsidiary or consolidated VIE in which the Company holds less than 100% ownership. Legal Expenses Legal fees are expensed as incurred and are included in other general and administrative expenses in the consolidated statements of operations. Insurance recoveries associated with the reimbursement of legal expenses incurred, if any, are included in other general and administrative expenses as a contra-expense in the consolidated statements of operations. Adoption of New Accounting Standards The Company adopted the following accounting standards during the nine month period ended September 30, 2017 : ASU 2016-09 Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting (ASU 2016-09), simplifies the accounting for employee share-based payment transactions, including the associated accounting for income taxes, forfeitures, and classification in the statement of cash flows. The Company adopted ASU 2016-09 effective January 1, 2017, under the modified retrospective method with the cumulative effect of adoption recorded as a reclassification to 2017 beginning accumulated deficit. The Company also elected to present the change in presentation in the Statement of Cash Flows related to excess tax benefits prospectively and, therefore, prior period amounts have not been adjusted. Under ASU 2016-09, the Company now recognizes the excess income tax benefits or deficiencies from stock-based compensation in the income tax provision in the Consolidated Statements of Operations, and as an operating activity in the Consolidated Statements of Cash Flows. Additionally, excess tax benefits and tax deficiencies are now excluded from the calculation of assumed proceeds under the treasury stock method when computing fully diluted earnings per share. Upon the adoption of this standard, the Company recognized a $57.0 million deferred tax asset with a full valuation allowance (net zero impact upon adoption) in the consolidated balance sheets for the excess income tax benefits from stock-based compensation as of January 1, 2017. The Company also elected to recognize forfeitures as they occur for equity awards with only a service condition, rather than estimate expected forfeitures, as permitted by ASU 2016-09. The Company recorded a $1.4 million reclassification to 2017 beginning accumulated deficit to remove the estimate of forfeitures as of January 1, 2017. ASU 2017-04, Intangibles – Goodwill and Other (Topic 350) – Simplifying the Test for Goodwill Impairment, simplifies the accounting for goodwill impairments by eliminating Step 2 of the goodwill impairment test. Under ASU 2017-04, a goodwill impairment loss is now measured as the amount by which the carrying amount of a reporting unit exceeds its fair value. The Company elected to early adopt ASU 2017-04 effective January 1, 2017. The adoption did not have an effect on the Company’s condensed consolidated financial statements for the nine month period ended September 30, 2017 . New Accounting Standards Not Yet Adopted Updates to the new accounting standards not yet adopted as disclosed in the Company’s Annual Report for the year ended December 31, 2016 are as follows: In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which will be effective January 1, 2018. The guidance clarifies that revenue from contracts with customers should be recognized in a manner that depicts both the likelihood of payment and the timing of the related transfer of goods or performance of services. In March 2016, the FASB issued an amendment (ASU 2016-08) to the new revenue recognition guidance clarifying how to determine if an entity is a principal or agent in a transaction. In April (ASU 2016-10) and May (ASU 2016-12) of 2016, the FASB further amended the guidance to include performance obligation identification, licensing implementation, collectability assessment and other presentation and transition clarifications. The effective date and transition requirements for the amendments are the same as for ASU 2014-09. The Company plans to adopt the revenue recognition guidance beginning January 1, 2018 and currently anticipates using the modified retrospective method of adoption. However, the adoption method to be used is subject to completion of the Company’s impact assessment. Upon adoption of Topic 606, as amended, the Company believes there will be no change to (1) the timing and pattern of revenue recognition for its current revenue streams in scope of Topic 606 which includes transaction fees and LCAM investment management fees, (2) the presentation of revenue as gross versus net, or (3) the amount of capitalized contract costs. Because there will be no change to the timing and pattern of revenue recognition, we believe there will be no material changes to the Company’s processes and internal controls. The Company has dedicated internal resources, engaged a service provider, and continues to execute the final phase of its implementation project plan to conclude on the method of adoption and quantify the adoption effects, if any, and prepare the expanded disclosures required by Topic 606. The Company also will continue to evaluate new revenue streams and analyze other aspects of Topic 606 that may become relevant. ASU 2017-09, Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting, (ASU 2017-09) , clarifies when to account for a change to the terms or conditions of a share-based payment award as a modification. Under ASU 2017-09, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The guidance is effective prospectively for all companies for annual periods beginning on or after December 15, 2017. Early adoption is permitted. The Company is still evaluating the impact of this ASU to its consolidated financial statements.

Net Loss Per Share

Net Loss Per Share	9 Months Ended
	Sep. 30, 2017
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 Nine Months Ended 2017 2016 2017 2016 LendingClub net loss $ (6,530 ) $ (36,486 ) $ (61,828 ) $ (113,700 ) Weighted average common shares - Basic 412,778,995 391,453,316 406,633,850 385,037,334 Weighted average common shares - Diluted 412,778,995 391,453,316 406,633,850 385,037,334 Net loss per share attributable to LendingClub: Basic $ (0.02 ) $ (0.09 ) $ (0.15 ) $ (0.30 ) Diluted $ (0.02 ) $ (0.09 ) $ (0.15 ) $ (0.30 )

Securities Available for Sale

Securities Available for Sale	9 Months Ended
	Sep. 30, 2017
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 September 30, 2017 and December 31, 2016 , were as follows: September 30, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Corporate debt securities $ 123,007 $ 176 $ (30 ) $ 123,153 Asset-backed securities related to Company- sponsored securitization transactions (1) 33,293 24 (32 ) 33,285 Certificates of deposit 25,920 — — 25,920 Asset-backed securities 15,454 — (3 ) 15,451 Commercial paper 9,981 — — 9,981 U.S. agency securities 5,000 1 — 5,001 U.S. Treasury securities 2,496 — (4 ) 2,492 Other securities 4,001 1 — 4,002 Total securities available for sale $ 219,152 $ 202 $ (69 ) $ 219,285 December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Corporate debt securities $ 181,359 $ 63 $ (199 ) $ 181,223 Certificates of deposit 27,501 — — 27,501 Asset-backed securities 25,369 4 (9 ) 25,364 Commercial paper 20,164 — — 20,164 U.S. agency securities 19,602 21 — 19,623 U.S. Treasury securities 2,493 3 — 2,496 Other securities 10,805 — (39 ) 10,766 Total securities available for sale $ 287,293 $ 91 $ (247 ) $ 287,137 (1) Approximately $32.5 million of the “Asset-backed securities related to Company-sponsored securitization 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 Quarterly Report on Form 10-Q for the period ended June 30, 2017). The senior securities and the subordinated residual certificates related to the securitization transactions (See “Note 6. Securitizations of Personal Whole Loans” ) are accounted for as securities available for sale. The senior securities and subordinated residual certificates are included in “Asset-backed securities related to Company-sponsored securitization 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 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 was $5.4 million at September 30, 2017 . A summary of securities available for sale with unrealized losses as of September 30, 2017 and December 31, 2016 , aggregated by period of continuous unrealized loss, is as follows: Less than 12 months 12 months or longer Total September 30, 2017 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Corporate debt securities $ 37,291 $ (20 ) $ 8,347 $ (10 ) $ 45,638 $ (30 ) Asset-backed securities related to Company-sponsored securitization transactions 19,187 (32 ) — — 19,187 (32 ) Asset-backed securities 4,233 (3 ) — — 4,233 (3 ) U.S. Treasury securities 2,492 (4 ) — — 2,492 (4 ) Total securities with unrealized losses (1) $ 63,203 $ (59 ) $ 8,347 $ (10 ) $ 71,550 $ (69 ) Less than 12 months Total December 31, 2016 Fair Unrealized Fair Unrealized Fair Unrealized Corporate debt securities $ 107,862 $ (185 ) $ 11,682 $ (14 ) $ 119,544 $ (199 ) Asset-backed securities 6,628 (8 ) 1,870 (1 ) 8,498 (9 ) Other securities 6,800 (3 ) 3,966 (36 ) 10,766 (39 ) Total securities with unrealized losses (1) $ 121,290 $ (196 ) $ 17,518 $ (51 ) $ 138,808 $ (247 ) (1) The number of investment positions with unrealized losses at September 30, 2017 and December 31, 2016 totaled 41 and 72 , respectively. During the third quarter and first nine months of 2017 , the Company recognized $505 thousand in other-than-temporary impairment charges on its subordinated residual certificates held as a result of its Company-sponsored securitization transactions. During the third quarter and first nine months of 2016 , the Company recognized no other-than-temporary impairment charges. The contractual maturities of securities available for sale at September 30, 2017 , were as follows: Within 1 year After 1 year through 5 years After 5 years through 10 years After 10 years Total Corporate debt securities $ 90,952 $ 32,201 $ — $ — $ 123,153 Asset-backed securities related to Company-sponsored securitization transactions — — 33,285 — 33,285 Certificates of deposit 25,920 — — — 25,920 Asset-backed securities 8,228 7,223 — — 15,451 Commercial paper 9,981 — — — 9,981 U.S. agency securities 5,001 — — — 5,001 U.S. Treasury securities — 2,492 — — 2,492 Other securities — 4,002 — — 4,002 Total fair value $ 140,082 $ 45,918 $ 33,285 $ — $ 219,285 Total amortized cost $ 140,055 $ 45,804 $ 33,293 $ — $ 219,152 During the third quarter and first nine months of 2017 , the Company’s Depositor and MOA sold $313.2 million and $578.6 million , respectively, in asset-backed securities related to the Company-sponsored securitization transactions. There were no realized gains or losses related to such sales. For further information, see “ Note 6. Securitizations of Personal Whole Loans .” There were no other sales of securities available for sale during the first nine months of 2017 or 2016 .

Loans, Loans Held For Sale, Not

Loans, Loans Held For Sale, Notes and Certificates and Loan Servicing Rights	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Loans, Loans Held For Sale, Notes and Certificates and Loan Servicing Rights	Loans, Loans Held For Sale, Notes and Certificates and Loan Servicing Rights Loans, Loans Held For Sale, Notes and Certificates 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 September 30, 2017 and December 31, 2016 , loans, loans held for sale, notes and certificates measured at fair value on a recurring basis were as follows: Loans (1) Loans Held For Sale (1)(2) Notes and Certificates September 30, December 31, September 30, December 31, September 30, December 31, Aggregate principal balance outstanding $ 3,620,061 $ 4,565,653 $ 277,191 $ 9,345 $ 3,725,615 $ 4,572,912 Net fair value adjustments (206,168 ) (253,669 ) (11,266 ) (297 ) (210,037 ) (252,017 ) Fair value $ 3,413,893 $ 4,311,984 $ 265,925 $ 9,048 $ 3,515,578 $ 4,320,895 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates, as summarized in the table below. (2) Loans held for sale at September 30, 2017, include $91.5 million in loans at fair value related to the LCAM legacy fund wind-down, as described in “Note 18. Subsequent Event s.” At September 30, 2017 and December 31, 2016 , loans invested in by the Company for which there were no associated notes or certificates were as follows: Loans Invested in by the Company Loans Loans Held For Sale Total September 30, 2017 December 31, 2016 September 30, 2017 December 31, 2016 September 30, 2017 December 31, 2016 Aggregate principal balance outstanding $ 13,891 18,515 $ 180,299 $ 9,345 $ 194,190 $ 27,860 Net fair value adjustments (1,488 ) (1,652 ) (5,908 ) (297 ) (7,396 ) (1,949 ) Fair value $ 12,403 16,863 $ 174,391 $ 9,048 $ 186,794 $ 25,911 The net change in fair value recorded in earnings on loans invested in by the Company was $(7.8) million and $(11.4) million in the third quarter and first nine months of 2017 , respectively. This change was offset by $10.1 million and $16.3 million in interest income earned on the loans held by the Company during the third quarter and first nine months of 2017 , respectively. The following tables present loans invested in by the Company for the third quarters and first nine months of 2017 and 2016 : Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2017 $ 57,221 $ (2,371 ) $ 54,850 Beginning balance at June 30, 2016 $ 35,672 $ (1,126 ) $ 34,546 Purchases 586,708 (473 ) 586,235 Purchases 3,579 — 3,579 Sales (429,481 ) 1,741 (427,740 ) Sales (6 ) — (6 ) Principal payments (18,720 ) — (18,720 ) Principal payments (4,352 ) — (4,352 ) Charge-offs (1,538 ) 1,538 — Charge-offs (701 ) 701 — Recoveries — (56 ) (56 ) Recoveries — (562 ) (562 ) Change in fair value recorded in earnings — (7,775 ) (7,775 ) Change in fair value recorded in earnings — (476 ) (476 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2016 $ 27,860 $ (1,949 ) $ 25,911 Beginning balance at December 31, 2015 $ 3,462 $ (4 ) $ 3,458 Purchases 777,117 (481 ) 776,636 Purchases 175,600 — 175,600 Sales (576,065 ) 2,634 (573,431 ) Sales (135,531 ) — (135,531 ) Principal payments (30,703 ) — (30,703 ) Principal payments (8,534 ) — (8,534 ) Charge-offs (4,019 ) 4,019 — Charge-offs (805 ) 805 — Recoveries — (256 ) (256 ) Recoveries — (580 ) (580 ) Change in fair value recorded in earnings — (11,363 ) (11,363 ) Change in fair value recorded in earnings — (1,684 ) (1,684 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 The Company used its own capital to purchase $586.7 million in loans during the third quarter of 2017 and sold $429.5 million in loans during the third quarter of 2017, of which $98.1 million was securitized and sold and $331.4 million was sold to whole loan investors. The aggregate principal balance outstanding of loans invested in by the Company was $194.2 million at September 30, 2017, of which $180.3 million was held for sale primarily to support upcoming securitization initiatives and sales to whole loan investors. The Company purchased $777.1 million in loans during the first nine months of 2017 . and sold $576.1 million in loans during the first nine months of 2017 . The Company continues to evaluate the impact of natural disasters 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 September 30, 2017 , $25.0 million of loans invested in by the Company were to borrowers who reside in the affected areas. While it is still early, the Company has reviewed its portfolio for potential losses from these recent natural disasters and reflected additional expected credit losses for these loans in the valuation of loans invested in by the Company. The Company continues to monitor performance of these loans. The Company places all loans that are contractually past due by 120 days or more on non-accrual status. At September 30, 2017 and December 31, 2016 , loans that were 90 days or more past due (including non-accrual loans) were as follows: September 30, 2017 December 31, 2016 > 90 days past due Non-accrual loans > 90 days past due Non-accrual loans Loans and loans held for sale (1) : Outstanding principal balance $ 42,258 $ 4,945 $ 45,718 $ 5,055 Net fair value adjustments (35,499 ) (4,123 ) (40,183 ) (4,392 ) Fair value $ 6,759 $ 822 $ 5,535 $ 663 Number of loans (not in thousands) 4,023 507 4,041 483 Loans invested in by the Company: Outstanding principal balance $ 1,087 $ 189 $ 511 $ 90 Net fair value adjustments (932 ) (165 ) (449 ) (80 ) Fair value $ 155 $ 24 $ 62 $ 10 Number of loans (not in thousands) 265 38 154 18 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates. Loan Servicing Rights Loans underlying loan servicing rights had a total outstanding principal balance of $7.63 billion and $6.54 billion as of September 30, 2017 and December 31, 2016 , respectively.

Securitization of Personal Whol

Securitization of Personal Whole Loans	9 Months Ended
	Sep. 30, 2017
Transfers and Servicing [Abstract]
Securitization of Personal Whole Loans	Securitizations of Personal Whole Loans CLUB 2017-P1 Securitization On September 28, 2017, the Company sponsored a securitization of prime unsecured personal whole loans with an aggregate unpaid principal balance of $350.8 million through an asset-backed securitization transaction. The loans were facilitated through the Company’s marketplace with the Company contributing loans with an aggregate unpaid principal balance of $98.1 million and a third-party whole loan investor contributing loans with an aggregate unpaid principal balance of $252.7 million . In connection with this securitization, the Company established a wholly-owned subsidiary (Depositor) to purchase the loans from the Company and the third-party whole loan investor and simultaneously transfer the loans to a securitization trust with the transfer accounted for as a sale of financial assets. The securitization trust issued senior securities and subordinated residual certificates to the Depositor with a fair value of $353.7 million as consideration for the transferred loans. The Depositor sold 95% of the senior securities to third-party investors for $302.3 million in net cash proceeds and then distributed the cash and the subordinated residual certificates to the Company and third-party whole loan investor. Additionally, the Company sold 72.6% of its allocated subordinated residual certificates to the third-party whole loan investor for $6.3 million in cash. To comply with regulations with respect to credit risk retention, the Company retained 5% of each of the senior securities and the subordinated residual certificates, plus an additional 2.7% interest in the subordinated residual certificates. As of September 30, 2017 , the fair value of the senior securities and subordinated residual certificates held by the Company was $16.2 million and $2.4 million , respectively. See “Note 4. Securities Available for Sale” for further information. The Depositor is a VIE in which the Company holds a controlling financial interest and is the primary beneficiary and, accordingly, the Company consolidates the Depositor in its financial statements. However, the Depositor holds no assets or liabilities as of September 30, 2017 following the completion of the series of transactions because it is the conduit to complete the securitization transaction. The securitization trust used to effect the transaction is a VIE that the Company does not consolidate because it is not the primary beneficiary. The net pre-tax gain on sale from this securitization transaction was $2.6 million , which is included in “Other revenue” in the consolidated statements of operations. Additionally, the Company retained the loan servicing responsibilities for which it will receive servicing fees over the life of the underlying loans. The fair value of the servicing asset related to the loans originally sold to third-party whole loan investors was reduced by $1.3 million , which is included in “Investor fees” in the consolidated statement of operations. CLUB 2017-NP1 Securitization On June 22, 2017, the Company sponsored a securitization of near-prime unsecured personal whole loans with an unpaid principal balance of $336.6 million through an asset-backed securitization transaction. The loans were facilitated through the Company’s marketplace and originally sold to third-party whole loan investors. In connection with this securitization, the Company established a majority-owned affiliate (MOA) to hold the risk retention interest required to be held by the sponsor of a securitization transaction. The MOA purchased the loans from the whole loan investors and simultaneously transferred them to a securitization trust with the transfer accounted for as a sale of financial assets. The securitization trust issued senior securities and subordinated residual certificates to the MOA with an aggregate value of $350.7 million as consideration for the transferred loans. The MOA sold 95% of senior securities to third-party investors for $260.8 million in net cash proceeds and then distributed the cash and 95% of the subordinated residual certificates to the original whole loan investors. To comply with regulatory credit risk retention rules, the MOA retained 5% of each of the senior securities and the subordinated residual certificate. As of September 30, 2017 , the fair value of the senior securities and subordinated residual certificates held by the MOA was $11.7 million and $3.0 million , respectively. See “Note 4. Securities Available for Sale” for additional information. As of September 30, 2017 , the Company owned 56% of the MOA, with the remaining 44% owned by unaffiliated investors that is reflected as noncontrolling interests in the Company’s consolidated financial statements. The MOA is a VIE in which the Company holds a controlling financial interest and is the primary beneficiary. Accordingly, the Company consolidates the MOA in its financial statements. The securitization trust used to effect the transaction is a VIE that the Company does not consolidate because it is not the primary beneficiary. The net pre-tax gain on sale from this securitization transaction was $1.7 million , which is included in “Other revenue” in the consolidated statements of operations. Additionally, the Company retained the loan servicing responsibilities for which it will receive servicing fees over the life of the underlying loans. The fair value of the servicing asset related to the loans originally sold to third-party whole loan investors was reduced by $1.1 million , which is included in “Investor fees” in the consolidated statement of operations. The Company also deposited a $6.7 million servicing reserve with the securitization trust, which is included in “Other assets” in the Company’s consolidated balance sheet. Securitizations 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 MOA are subject principally to the credit and prepayment risk stemming from the underlying personal whole loans. The senior securities and subordinated residual certificates are accounted for as securities available for sale. See “Note 4. Securities Available for Sale” and “Note 7. Fair Value of Assets and Liabilities” for additional information. Also refer to “Part II – Item 8 – Financial Statements and Supplementary Data – Note 2. Summary of Significant Accounting Policies” in the Company’s Annual Report for further information regarding the Company’s accounting for securities available for sale and servicing assets. The fair value sensitivity of the senior securities and subordinated residual certificates to adverse changes in key assumptions are as follows: September 30, 2017 Asset-backed securities related to Company-sponsored securitization transactions Senior securities Subordinated residual certificates Fair value of interests held $ 27,883 $ 5,402 Expected weighted-average life (in years) 1.1 1.5 Discount rates 100 basis point increase $ (279 ) $ 72 200 basis point increase $ (551 ) $ (143 ) Expected credit loss rates on underlying loans 10% adverse change $ — $ (637 ) 20% adverse change $ — $ (1,262 ) Expected prepayment rates 10% adverse change $ — $ (114 ) 20% adverse change $ (1 ) $ (250 ) As of September 30, 2017 , the aggregate unpaid principal balance of the off-balance sheet loans that have been securitized pursuant to Company-sponsored securitization transactions was $642.1 million , of which approximately $15.2 million was 31 days or more past due. Secured Borrowings During the second quarter of 2016, the Company repurchased $22.3 million of near-prime loans from a single institutional investor that did not meet a non-credit, non-pricing requirement of the investor, of which $15.1 million were originally sold to the investor prior to March 31, 2016. As a result, these loans were accounted for as secured borrowings at March 31, 2016. During the second quarter of 2016, the Company resold the loans to a different investor at par. This subsequent transfer qualified for sale accounting treatment, and the loans were removed from the Company’s Condensed Consolidated Balance Sheets and the secured borrowings liability was reduced to zero in the second quarter of 2016. There were no secured borrowing liabilities as of September 30, 2017 or December 31, 2016 .

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	9 Months Ended
	Sep. 30, 2017
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. The Company records certain assets and liabilities at fair value as listed in the following tables. Financial Instruments Recorded at Fair Value The following tables present the fair value hierarchy for assets and liabilities measured at fair value: September 30, 2017 Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Loans $ — $ — $ 3,413,893 $ 3,413,893 Loans held for sale — — 265,925 265,925 Securities available for sale: Corporate debt securities — 123,153 — 123,153 Certificates of deposit — 25,920 — 25,920 Asset-backed securities — 15,451 — 15,451 Commercial paper — 9,981 — 9,981 U.S. agency securities — 5,001 — 5,001 U.S. Treasury securities — 2,492 — 2,492 Asset-backed securities related to Company-sponsored securitization transactions — 27,883 5,402 33,285 Other securities — 4,002 — 4,002 Total securities available for sale — 213,883 5,402 219,285 Servicing assets — — 29,621 29,621 Total assets $ — $ 213,883 $ 3,714,841 $ 3,928,724 Liabilities: Notes and certificates $ — $ — $ 3,515,578 $ 3,515,578 Servicing liabilities — — 1,231 1,231 Loan trailing fee liability — — 7,774 7,774 Total liabilities $ — $ — $ 3,524,583 $ 3,524,583 December 31, 2016 Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Assets: Loans $ — $ — $ 4,311,984 $ 4,311,984 Loans held for sale — — 9,048 9,048 Securities available for sale: Corporate debt securities — 181,223 — 181,223 Certificates of deposit — 27,501 — 27,501 Asset-backed securities — 25,364 — 25,364 Commercial paper — 20,164 — 20,164 U.S. agency securities — 19,623 — 19,623 U.S. Treasury securities — 2,496 — 2,496 Other securities — 10,766 — 10,766 Total securities available for sale — 287,137 — 287,137 Servicing assets — — 21,398 21,398 Total assets $ — $ 287,137 $ 4,342,430 $ 4,629,567 Liabilities: Notes and certificates $ — $ — $ 4,320,895 $ 4,320,895 Loan trailing fee liability — — 4,913 4,913 Servicing liabilities — — 2,846 2,846 Total liabilities $ — $ — $ 4,328,654 $ 4,328,654 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 and related notes and certificates, 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 both observable and unobservable inputs. The Company did not transfer any assets or liabilities in or out of Level 3 during the first nine months of 2017 or the year ended December 31, 2016 . Significant Unobservable Inputs The following tables present quantitative information about the significant unobservable inputs used for the Company’s Level 3 fair value measurements at September 30, 2017 and December 31, 2016 : September 30, 2017 Loans, Loans Held for Sale, Notes and Certificates Asset-Backed Securities Related to Consolidated VIE Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.8 % 17.2 % 8.3 % 15.0 % 15.0 % 15.0 % Net cumulative expected loss rates (1)(3) 0.8 % 41.4 % 13.5 % 12.8 % 20.3 % 17.1 % Cumulative expected prepayment rates (1)(3) 11.3 % 43.6 % 30.9 % 29.6 % 29.6 % 29.6 % September 30, 2017 Servicing Assets/Liabilities Loan Trailing Fee Liability Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.9 % 16.5 % 8.7 % 1.9 % 16.5 % 8.8 % Net cumulative expected loss rates (1) 0.8 % 41.4 % 12.0 % 0.8 % 41.4 % 12.7 % Cumulative expected prepayment rates (1) 11.3 % 43.6 % 31.8 % 11.3 % 43.6 % 31.4 % Total market servicing rates (% per annum on outstanding principal balance) (2) 0.65 % 0.90 % 0.65 % N/A N/A N/A December 31, 2016 Loans, Loans Held for Sale, Notes and Certificates Servicing Assets/Liabilities Loan Trailing Fee Liability Minimum Maximum Weighted Average Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.2 % 16.6 % 7.2 % 3.4 % 15.1 % 7.8 % 3.4 % 15.0 % 7.7 % Net cumulative expected loss rates (1) 0.3 % 33.9 % 14.6 % 0.3 % 33.9 % 12.8 % 0.3 % 33.9 % 13.5 % Cumulative expected prepayment rates (1) 8.0 % 42.7 % 30.7 % 8.0 % 42.7 % 29.3 % 8.0 % 42.7 % 28.3 % Total market servicing rates (% per annum on outstanding principal balance) (2) N/A N/A N/A 0.63 % 0.90 % 0.63 % N/A N/A N/A N/A Not applicable (1) Expressed as a percentage of the original principal balance of the loan, note or certificate, except for asset-backed securities. (2) Includes collection fees estimated to be paid to a hypothetical third-party servicer. (3) For asset-backed securities, expressed as a percentage of the outstanding collateral balance. At September 30, 2017 and December 31, 2016 , the discounted cash flow methodology used to estimate the note and certificates’ 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 were largely offset by the fair value adjustments of the notes and certificates due to the payment dependent design of the notes and certificates and because the principal balances of the loans were close to the combined principal balances of the notes and certificates. The following tables present additional information about Level 3 loans, loans held for sale, notes and certificates measured at fair value on a recurring basis for the third quarters and first nine months of 2017 and 2016 : Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2017 $ 4,041,550 $ (244,551 ) $ 3,796,999 $ 37,287 $ (956 ) $ 36,331 $ 4,048,717 $ (243,135 ) $ 3,805,582 Purchases 405,472 (469 ) 405,003 1,931,088 (2,136 ) 1,928,952 — — — Transfers from loans to loans held for sale (113,587 ) — (113,587 ) 113,587 — 113,587 — — — Issuances — — — — — — 394,013 — 394,013 Sales — — — (1,787,527 ) 3,874 (1,783,653 ) — — — Principal payments and retirements (597,304 ) — (597,304 ) (16,710 ) — (16,710 ) (602,051 ) 2 (602,049 ) Charge-offs (116,070 ) 116,070 — (534 ) 534 — (115,064 ) 115,064 — Recoveries — (12,114 ) (12,114 ) — — — — (12,057 ) (12,057 ) Change in fair value recorded in earnings — (65,104 ) (65,104 ) — (12,582 ) (12,582 ) — (69,911 ) (69,911 ) Ending balance at September 30, 2017 $ 3,620,061 $ (206,168 ) $ 3,413,893 $ 277,191 $ (11,266 ) $ 265,925 $ 3,725,615 $ (210,037 ) $ 3,515,578 Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2016 $ 4,748,631 $ (340,870 ) $ 4,407,761 $ 16,627 $ (217 ) $ 16,410 $ 4,755,846 $ (339,961 ) $ 4,415,885 Purchases 646,662 — 646,662 1,093,868 — 1,093,868 — — — Transfers from loans to loans held for sale (2,269 ) — (2,269 ) 2,269 — 2,269 — — — Issuances — — — — — — 644,168 — 644,168 Sales — — — (1,095,716 ) — (1,095,716 ) — — — Principal payments and retirements (603,452 ) — (603,452 ) (2,143 ) — (2,143 ) (604,160 ) — (604,160 ) Charge-offs (112,517 ) 112,517 — — — — (111,816 ) 111,816 — Recoveries — (10,517 ) (10,517 ) — — — — (9,955 ) (9,955 ) Change in fair value recorded in earnings — (26,559 ) (26,559 ) — 56 56 — (26,027 ) (26,027 ) Ending balance at September 30, 2016 $ 4,677,055 $ (265,429 ) $ 4,411,626 $ 14,905 $ (161 ) $ 14,744 $ 4,684,038 $ (264,127 ) $ 4,419,911 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates, as summarized in the tables below. Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2016 $ 4,565,653 $ (253,669 ) $ 4,311,984 $ 9,345 $ (297 ) $ 9,048 $ 4,572,912 $ (252,017 ) $ 4,320,895 Purchases 1,408,138 (474 ) 1,407,664 4,829,498 4,287 4,833,785 — — — Transfers from loans to loans held for sale (113,587 ) — (113,587 ) 113,587 — 113,587 — — — Issuances — — — — — — 1,389,999 — 1,389,999 Sales — — — (4,648,913 ) (1,656 ) (4,650,569 ) — — — Principal payments and retirements (1,862,767 ) — (1,862,767 ) (25,431 ) — (25,431 ) (1,863,045 ) 4 (1,863,041 ) Charge-offs (377,376 ) 377,376 — (895 ) 895 — (374,251 ) 374,251 — Recoveries — (34,808 ) (34,808 ) — — — — (34,550 ) (34,550 ) Change in fair value recorded in earnings — (294,593 ) (294,593 ) — (14,495 ) (14,495 ) — (297,725 ) (297,725 ) Ending balance at September 30, 2017 $ 3,620,061 $ (206,168 ) $ 3,413,893 $ 277,191 $ (11,266 ) $ 265,925 $ 3,725,615 $ (210,037 ) $ 3,515,578 Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2015 $ 4,681,671 $ (125,590 ) $ 4,556,081 $ — $ — $ — $ 4,697,169 $ (125,586 ) $ 4,571,583 Purchases 2,093,692 — 2,093,692 3,623,453 — 3,623,453 — — — Transfers from loans to loans held for sale (30,802 ) — (30,802 ) 30,802 — 30,802 — — — Issuances — — — — — — 2,047,714 — 2,047,714 Sales — — — (3,635,330 ) — (3,635,330 ) — — — Principal payments and retirements (1,782,603 ) — (1,782,603 ) (4,020 ) — (4,020 ) (1,776,747 ) — (1,776,747 ) Charge-offs (284,903 ) 284,903 — — — — (284,098 ) 284,098 — Recoveries — (27,451 ) (27,451 ) — — — — (26,871 ) (26,871 ) Change in fair value recorded in earnings — (397,291 ) (397,291 ) — (161 ) (161 ) — (395,768 ) (395,768 ) Ending balance at September 30, 2016 $ 4,677,055 $ (265,429 ) $ 4,411,626 $ 14,905 $ (161 ) $ 14,744 $ 4,684,038 $ (264,127 ) $ 4,419,911 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates, as summarized in the tables below. 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 third quarters and first nine months of 2017 and 2016 : Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2017 $ 57,221 $ (2,371 ) $ 54,850 Beginning balance at June 30, 2016 $ 35,672 $ (1,126 ) $ 34,546 Purchases 586,708 (473 ) 586,235 Purchases 3,579 — 3,579 Sales (429,481 ) 1,741 (427,740 ) Sales (6 ) — (6 ) Principal payments (18,720 ) — (18,720 ) Principal payments (4,352 ) — (4,352 ) Charge-offs (1,538 ) 1,538 — Charge-offs (701 ) 701 — Recoveries — (56 ) (56 ) Recoveries — (562 ) (562 ) Change in fair value recorded in earnings — (7,775 ) (7,775 ) Change in fair value recorded in earnings — (476 ) (476 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2016 $ 27,860 $ (1,949 ) $ 25,911 Beginning balance at December 31, 2015 $ 3,462 $ (4 ) $ 3,458 Purchases 777,117 (481 ) 776,636 Purchases 175,600 — 175,600 Sales (576,065 ) 2,634 (573,431 ) Sales (135,531 ) — (135,531 ) Principal payments (30,703 ) — (30,703 ) Principal payments (8,534 ) — (8,534 ) Charge-offs (4,019 ) 4,019 — Charge-offs (805 ) 805 — Recoveries — (256 ) (256 ) Recoveries — (580 ) (580 ) Change in fair value recorded in earnings — (11,363 ) (11,363 ) Change in fair value recorded in earnings — (1,684 ) (1,684 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 The following tables present additional information about Level 3 servicing assets and liabilities measured at fair value on a recurring basis for the third quarters and first nine months of 2017 and 2016 : Three Months Ended September 30, 2017 Three Months Ended September 30, 2016 Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Fair value at beginning of period $ 25,901 $ 1,711 $ 16,126 $ 3,412 Issuances (1) 10,563 19 3,009 712 Change in fair value, included in investor fees (6,961 ) (499 ) (2,429 ) (727 ) Other net changes included in deferred revenue 118 — (451 ) — Fair value at end of period $ 29,621 $ 1,231 $ 16,255 $ 3,397 Nine Months Ended Nine Months Ended Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Fair value at beginning of period $ 21,398 $ 2,846 $ 10,250 $ 3,973 Issuances (1) 24,460 332 12,984 2,452 Change in fair value, included in investor fees (16,083 ) (1,947 ) (7,092 ) (3,028 ) Other net changes included in deferred revenue (154 ) — 113 — Fair value at end of period $ 29,621 $ 1,231 $ 16,255 $ 3,397 (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 third quarters and first nine months of 2017 and 2016 : Three Months Ended Nine Months Ended 2017 2016 2017 2016 Fair value at beginning of period $ 6,788 $ 2,324 $ 4,913 $ — Issuances 2,047 1,682 5,521 4,180 Cash payment of loan trailing fee (1,184 ) (395 ) (3,008 ) (585 ) Change in fair value, included in origination and servicing 123 113 348 129 Fair value at end of period $ 7,774 $ 3,724 $ 7,774 $ 3,724 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 third quarters and first nine months of 2017 and 2016 . 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 and certificates, 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 September 30, 2017 , are as follows: September 30, 2017 Fair value of loans invested in by the Company $ 186,794 Expected weighted-average life (in years) 1.6 Discount rates 100 basis point increase $ (2,301 ) 200 basis point increase $ (4,544 ) Expected credit loss rates on underlying loans 10% adverse change $ (3,282 ) 20% adverse change $ (6,448 ) Expected prepayment rates 10% adverse change $ (974 ) 20% adverse change $ (1,886 ) The fair value sensitivity of loans invested in by the Company to adverse changes in key assumptions as of December 31, 2016 , was not material. 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 September 30, 2017 and December 31, 2016 : September 30, 2017 December 31, 2016 Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Weighted-average market servicing rate assumptions 0.65 % 0.65 % 0.63 % 0.63 % Change in fair value from: Servicing rate increase by 0.10% $ (7,203 ) $ 389 $ (5,673 ) $ 964 Servicing rate decrease by 0.10% $ 7,265 $ (327 ) $ 5,812 $ (825 ) 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: September 30, 2017 Carrying Amount Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Cash and cash equivalents (1) $ 384,381 $ — $ 384,381 $ — $ 384,381 Restricted cash 182,844 — 182,844 — 182,844 Servicer reserve receivable 9,043 — 9,043 — 9,043 Deposits 855 — 855 — 855 Total assets $ 577,123 $ — $ 577,123 $ — $ 577,123 Liabilities: Accrued expenses and other liabilities $ 13,079 $ — $ — $ 13,079 $ 13,079 Accounts payable 7,503 — 7,503 — 7,503 Payables to investors 93,893 — 93,893 — 93,893 Total liabilities $ 114,475 $ — $ 101,396 $ 13,079 $ 114,475 (1) Carrying amount approximates fair value due to the short maturity of these financial instruments. December 31, 2016 Carrying Amount Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Cash and cash equivalents (1) $ 515,602 $ — $ 515,602 $ — $ 515,602 Restricted cash 177,810 — 177,810 — 177,810 Servicer reserve receivable 4,938 — 4,938 — 4,938 Deposits 855 — 855 — 855 Total assets $ 699,205 $ — $ 699,205 $ — $ 699,205 Liabilities: Accrued expenses and other liabilities $ 10,981 $ — $ — $ 10,981 $ 10,981 Accounts payable 10,889 — 10,889 — 10,889 Payables to investors 125,884 — 125,884 — 125,884 Total liabilities $ 147,754 $ — $ 136,773 $ 10,981 $ 147,754 (1) Carrying amount approximates fair value due to the short maturity of these financial instruments.

Property, Equipment and Softwar

Property, Equipment and Software, net	9 Months Ended
	Sep. 30, 2017
Property, Plant and Equipment [Abstract]
Property, Equipment and Software, Net	Property, Equipment and Software, Net Property, equipment and software, net, consist of the following: September 30, December 31, Internally developed software (1) $ 108,635 $ 75,202 Leasehold improvements 24,653 22,637 Computer equipment 18,854 18,080 Purchased software 7,750 7,598 Furniture and fixtures 7,229 6,827 Construction in progress 1,897 707 Total property, equipment and software 169,018 131,051 Accumulated depreciation and amortization (68,336 ) (41,788 ) Total property, equipment and software, net $ 100,682 $ 89,263 (1) Includes $12.3 million and $7.4 million in development in progress as of September 30, 2017 and December 31, 2016 , respectively. Depreciation and amortization expense on property, equipment and software was $10.3 million and $29.2 million for the third quarter and first nine months of 2017 , respectively. Depreciation and amortization expense on property, equipment and software was $6.5 million and $17.8 million for the third quarter and first nine months of 2016 , respectively.

Other Assets

Other Assets	9 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets Other assets consist of the following: September 30, December 31, Loan servicing assets, at fair value $ 29,621 $ 21,398 Prepaid expenses 21,084 16,960 Other investments 10,411 10,372 Servicer reserve receivable 9,043 4,938 Accounts receivable 8,889 7,572 Insurance reimbursement receivable 7,119 — Receivable from investors 1,394 1,566 Due from related parties (1) 279 476 Tenant improvement receivable — 3,290 Other 3,539 3,072 Total other assets $ 91,379 $ 69,644 (1) Represents management fees from certain private funds for which LCAM or its subsidiaries act as the general partner.

Intangible Assets and Goodwill

Intangible Assets and Goodwill	9 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets and Goodwill	Intangible Assets and Goodwill Intangible Assets The Company’s intangible asset balance was $23.0 million and $26.2 million at September 30, 2017 and December 31, 2016 , respectively. Amortization expense associated with intangible assets for the third quarter and first nine months of 2017 was $1.0 million and $3.3 million , respectively. Amortization expense associated with intangible assets for the third quarter and first nine months of 2016 was $1.2 million and $3.6 million , respectively. Goodwill The Company’s goodwill balance was $35.6 million at September 30, 2017 and December 31, 2016 , respectively. The Company has one reporting unit for goodwill impairment testing purposes, the patient and education finance (PEF) reporting unit. The Company performed a quantitative annual test for impairment as of April 1, 2017, according to which the estimated fair value of the PEF reporting unit substantially exceeded its carrying value. Upon completion of the annual impairment test in the second quarter of 2017, the Company did not record any goodwill impairment. The Company did not record any goodwill impairment for the third quarter and first nine months of 2017 . The Company recorded a goodwill impairment of $1.7 million and $37.1 million for the third quarter and first nine months of 2016 , respectively.

Accrued Expenses and Other Liab

Accrued Expenses and Other Liabilities	9 Months Ended
	Sep. 30, 2017
Payables and Accruals [Abstract]
Accrued Expenses and Other Liabilities	Accrued Expenses and Other Liabilities Accrued expenses and other liabilities consist of the following: September 30, December 31, Accrued compensation (1) $ 26,824 $ 27,009 Accrued expenses 25,252 19,734 Deferred rent 14,533 11,638 Transaction fee refund reserve 13,728 9,098 Loan trailing fee liability, at fair value 7,774 4,913 Deferred revenue 2,531 2,556 Reimbursement payable to limited partners of LCAM private funds 2,240 2,313 Contingent liabilities 1,813 — Loan servicing liabilities, at fair value 1,231 2,846 Payable to issuing banks 863 1,658 Credit loss coverage reserve — 2,529 Other 1,512 1,325 Total accrued expenses and other liabilities $ 98,301 $ 85,619 (1) Includes accrued cash retention awards of $0.6 million and $3.0 million as of September 30, 2017 and December 31, 2016 , respectively.

Secured Borrowings

Secured Borrowings	9 Months Ended
	Sep. 30, 2017
Receivables [Abstract]
Secured Borrowings	Securitizations of Personal Whole Loans CLUB 2017-P1 Securitization On September 28, 2017, the Company sponsored a securitization of prime unsecured personal whole loans with an aggregate unpaid principal balance of $350.8 million through an asset-backed securitization transaction. The loans were facilitated through the Company’s marketplace with the Company contributing loans with an aggregate unpaid principal balance of $98.1 million and a third-party whole loan investor contributing loans with an aggregate unpaid principal balance of $252.7 million . In connection with this securitization, the Company established a wholly-owned subsidiary (Depositor) to purchase the loans from the Company and the third-party whole loan investor and simultaneously transfer the loans to a securitization trust with the transfer accounted for as a sale of financial assets. The securitization trust issued senior securities and subordinated residual certificates to the Depositor with a fair value of $353.7 million as consideration for the transferred loans. The Depositor sold 95% of the senior securities to third-party investors for $302.3 million in net cash proceeds and then distributed the cash and the subordinated residual certificates to the Company and third-party whole loan investor. Additionally, the Company sold 72.6% of its allocated subordinated residual certificates to the third-party whole loan investor for $6.3 million in cash. To comply with regulations with respect to credit risk retention, the Company retained 5% of each of the senior securities and the subordinated residual certificates, plus an additional 2.7% interest in the subordinated residual certificates. As of September 30, 2017 , the fair value of the senior securities and subordinated residual certificates held by the Company was $16.2 million and $2.4 million , respectively. See “Note 4. Securities Available for Sale” for further information. The Depositor is a VIE in which the Company holds a controlling financial interest and is the primary beneficiary and, accordingly, the Company consolidates the Depositor in its financial statements. However, the Depositor holds no assets or liabilities as of September 30, 2017 following the completion of the series of transactions because it is the conduit to complete the securitization transaction. The securitization trust used to effect the transaction is a VIE that the Company does not consolidate because it is not the primary beneficiary. The net pre-tax gain on sale from this securitization transaction was $2.6 million , which is included in “Other revenue” in the consolidated statements of operations. Additionally, the Company retained the loan servicing responsibilities for which it will receive servicing fees over the life of the underlying loans. The fair value of the servicing asset related to the loans originally sold to third-party whole loan investors was reduced by $1.3 million , which is included in “Investor fees” in the consolidated statement of operations. CLUB 2017-NP1 Securitization On June 22, 2017, the Company sponsored a securitization of near-prime unsecured personal whole loans with an unpaid principal balance of $336.6 million through an asset-backed securitization transaction. The loans were facilitated through the Company’s marketplace and originally sold to third-party whole loan investors. In connection with this securitization, the Company established a majority-owned affiliate (MOA) to hold the risk retention interest required to be held by the sponsor of a securitization transaction. The MOA purchased the loans from the whole loan investors and simultaneously transferred them to a securitization trust with the transfer accounted for as a sale of financial assets. The securitization trust issued senior securities and subordinated residual certificates to the MOA with an aggregate value of $350.7 million as consideration for the transferred loans. The MOA sold 95% of senior securities to third-party investors for $260.8 million in net cash proceeds and then distributed the cash and 95% of the subordinated residual certificates to the original whole loan investors. To comply with regulatory credit risk retention rules, the MOA retained 5% of each of the senior securities and the subordinated residual certificate. As of September 30, 2017 , the fair value of the senior securities and subordinated residual certificates held by the MOA was $11.7 million and $3.0 million , respectively. See “Note 4. Securities Available for Sale” for additional information. As of September 30, 2017 , the Company owned 56% of the MOA, with the remaining 44% owned by unaffiliated investors that is reflected as noncontrolling interests in the Company’s consolidated financial statements. The MOA is a VIE in which the Company holds a controlling financial interest and is the primary beneficiary. Accordingly, the Company consolidates the MOA in its financial statements. The securitization trust used to effect the transaction is a VIE that the Company does not consolidate because it is not the primary beneficiary. The net pre-tax gain on sale from this securitization transaction was $1.7 million , which is included in “Other revenue” in the consolidated statements of operations. Additionally, the Company retained the loan servicing responsibilities for which it will receive servicing fees over the life of the underlying loans. The fair value of the servicing asset related to the loans originally sold to third-party whole loan investors was reduced by $1.1 million , which is included in “Investor fees” in the consolidated statement of operations. The Company also deposited a $6.7 million servicing reserve with the securitization trust, which is included in “Other assets” in the Company’s consolidated balance sheet. Securitizations 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 MOA are subject principally to the credit and prepayment risk stemming from the underlying personal whole loans. The senior securities and subordinated residual certificates are accounted for as securities available for sale. See “Note 4. Securities Available for Sale” and “Note 7. Fair Value of Assets and Liabilities” for additional information. Also refer to “Part II – Item 8 – Financial Statements and Supplementary Data – Note 2. Summary of Significant Accounting Policies” in the Company’s Annual Report for further information regarding the Company’s accounting for securities available for sale and servicing assets. The fair value sensitivity of the senior securities and subordinated residual certificates to adverse changes in key assumptions are as follows: September 30, 2017 Asset-backed securities related to Company-sponsored securitization transactions Senior securities Subordinated residual certificates Fair value of interests held $ 27,883 $ 5,402 Expected weighted-average life (in years) 1.1 1.5 Discount rates 100 basis point increase $ (279 ) $ 72 200 basis point increase $ (551 ) $ (143 ) Expected credit loss rates on underlying loans 10% adverse change $ — $ (637 ) 20% adverse change $ — $ (1,262 ) Expected prepayment rates 10% adverse change $ — $ (114 ) 20% adverse change $ (1 ) $ (250 ) As of September 30, 2017 , the aggregate unpaid principal balance of the off-balance sheet loans that have been securitized pursuant to Company-sponsored securitization transactions was $642.1 million , of which approximately $15.2 million was 31 days or more past due. Secured Borrowings During the second quarter of 2016, the Company repurchased $22.3 million of near-prime loans from a single institutional investor that did not meet a non-credit, non-pricing requirement of the investor, of which $15.1 million were originally sold to the investor prior to March 31, 2016. As a result, these loans were accounted for as secured borrowings at March 31, 2016. During the second quarter of 2016, the Company resold the loans to a different investor at par. This subsequent transfer qualified for sale accounting treatment, and the loans were removed from the Company’s Condensed Consolidated Balance Sheets and the secured borrowings liability was reduced to zero in the second quarter of 2016. There were no secured borrowing liabilities as of September 30, 2017 or December 31, 2016 .

Employee Incentive Plans

Employee Incentive Plans	9 Months Ended
	Sep. 30, 2017
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 Nine Months Ended 2017 2016 2017 2016 Stock options $ 3,435 $ 6,208 $ 11,927 $ 17,632 RSUs 12,295 11,143 41,451 25,044 ESPP 376 438 1,155 1,273 Stock issued related to acquisition — 133 159 2,441 Total stock-based compensation expense $ 16,106 $ 17,922 $ 54,692 $ 46,390 The following table presents the Company’s stock-based compensation expense recorded in the Condensed Consolidated Statements of Operations: Three Months Ended Nine Months Ended 2017 2016 2017 2016 Sales and marketing $ 1,591 $ 1,699 $ 5,857 $ 5,016 Origination and servicing 1,049 1,013 3,819 2,722 Engineering and product development 4,640 4,931 17,001 13,134 Other general and administrative 8,826 10,279 28,015 25,518 Total stock-based compensation expense $ 16,106 $ 17,922 $ 54,692 $ 46,390 The Company capitalized $2.2 million of stock-based compensation expense associated with developing software for internal use during both the third quarters of 2017 and 2016 . The Company capitalized $7.4 million and $6.2 million of stock-based compensation expense associated with developing software for internal use during the first nine months of 2017 and 2016 , respectively. The Company adopted ASU 2016-09 on January 1, 2017. See “Note 2. Summary of Significant Accounting Policies, ” for information on the adoption of ASU 2016-09. Performance-based Restricted Stock Units During the first quarter of 2017, the Company’s chief executive officer received performance-based restricted stock units (PBRSUs). PBRSUs are equity awards that may be earned based on achieving 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 in one-year following the completion of the performance period and the remaining one-half vesting in 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	9 Months Ended
	Sep. 30, 2017
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	9 Months Ended
	Sep. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Operating Lease Commitments Total facilities rental expense for the third quarter and first nine months of 2017 was $4.0 million and $11.7 million , respectively. Total facilities rental expense for the third quarter and first nine months of 2016 was $3.7 million and $10.5 million , respectively. Minimum lease payments for the third quarter and first nine months of 2017 were $4.0 million and $11.0 million , respectively. Minimum lease payments for the third quarter and first nine months of 2016 were $3.4 million and $8.3 million , respectively. As of September 30, 2017 , 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 September 30, 2017 , were as follows: Operating Leases Subleases Net 2017 $ 4,081 $ 75 $ 4,006 2018 16,389 310 16,079 2019 16,626 39 16,587 2020 17,557 — 17,557 2021 17,844 — 17,844 Thereafter 46,163 — 46,163 Total $ 118,660 $ 424 $ 118,236 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 LendingClub’s 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 September 30, 2017 and December 31, 2016 , the Company was committed to purchase loans with an outstanding principal balance of $122.3 million and $32.2 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 facilitating the ability of the Company and other investors to access securitization markets, the Company has agreed to repurchase loans if representations and warranties made with respect to such loans are breached. 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 $1.7 million in loans, notes and certificates during the first nine months of 2017 . Purchase Commitments As required by applicable regulations, the Company is obligated to purchase loans resulting from direct mail marketing efforts if such loans are not otherwise invested in by investors on the platform. The Company was not required to purchase any such loans during the first nine months of 2017 . Additionally, loans in the process of being facilitated through the Company’s platform and originated by the Company’s issuing bank partner at September 30, 2017 , were substantially funded in October 2017 . 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 September 30, 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 consolidated balance sheets. During the first nine months of 2017 , the Company was required to purchase $22.2 million of Pool B loans. Pool B loans are held on the Company’s balance sheet and have an outstanding principal balance and fair value of $18.8 million and $17.7 million as of September 30, 2017 , respectively. The Company believes it will be required to purchase additional Pool B loans in the remainder of 2017 as it seeks to arrange for other investors to invest in or purchase these loans. Credit Support Agreements In connection with a significant platform purchase agreement, the Company entered into a credit support agreement with a third-party whole loan investor that required the Company to reimburse the investor for credit losses in excess of a specified percentage of the original principal balance of whole loans acquired by the investor during a 12 -month period. During the first nine months of 2017 , the Company paid the investor $13.0 million under this agreement, which terminated in October 2017. As of September 30, 2017 , the Company had no accrued liabilities for future expected payments to the investor. The Company is also 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 $3.4 million as of September 30, 2017 and December 31, 2016 , 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 September 30, 2017 . Legal The Company is subject to various claims arising in the ordinary course of business, and is party to a large number of legal proceedings that constitute ordinary, routine litigation matters incidental to its business. The majority of these claims and proceedings relate to alleged commercial disputes, alleged consumer complaints, and alleged state or federal law and regulatory violations. 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 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. Securities Class Actions. 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. The Company filed a demurrer requesting the Court dismiss certain of the claims alleged in the amended complaint, which was granted in part in the fourth quarter of 2016. The plaintiffs then filed a Second Amended Consolidated Complaint which the Company responded to with a new demurrer seeking to dismiss certain claims. The Court granted in part and denied in part this new demurrer. The Plaintiffs then amended their complaint again to comply with this Order. 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 has now set the trial date for October 2018. Discovery is continuing. The Company intends to vigorously defend against the claims. 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. In August 2016, the two actions were 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 have now begun 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. All parties (including the intervening state court plaintiffs) have been ordered to participate in a mediation on November 28, 2017. The Company will participate in the mediation in good faith. The Company is prepared to vigorously defend against the claims; however, the parties in the mediation may determine that it is appropriate to settle these matters at the time of mediation or shortly thereafter. The Company cannot make any reasonable estimate as to whether the matters may settle in connection with the mediation or, if the matters do settle, the possible range of any settlement. Any settlement may be covered in whole or in part by insurance. However, any settlement may have a significant and negative impact on the Company’s results of operations for the period in which the matter settles. In the event the matters do not settle, the federal matter is set for trial in September 2018. In the event the matter proceeds to trial, the Company will continue to vigorously defend against the claims. The Company is 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 is currently being reimbursed by insurance carriers for costs related to the litigations and investigations. Given these considerations it is possible that an adverse outcome in these cases could have a material effect on the Company’s financial position and results of operations. However, based on information currently known by the Company’s management and the existence of the insurance, reasonably possible or probable losses or range of losses cannot be estimated. 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). Both of these actions are based on allegations similar to those in the securities class action litigation as described above. In September 2017, the Steinberg plaintiffs and Fink plaintiffs each filed motions to consolidate the two derivative suits and for the designation of lead plaintiff(s) and lead counsel. In October 2017, the Steinberg and Fink plaintiffs reached an agreement regarding consolidation and submitted a proposed consolidation order to the court. The court entered that order consolidating the cases, selecting the Steinberg plaintiffs as lead plaintiffs, and designating the Steinberg complaint as the operative complaint. The defendants intend to move to stay these matters in light of the other pending proceedings. Federal Consumer Class Action. In April 2016, a putative class action lawsuit was filed in federal court in New York ( Bethune v. LendingClub Corporation et al. (16 Civ. 2778)(NRB)), alleging that persons received loans, through the Company’s platform, that exceeded states’ usury limits in violation of state usury and consumer protection laws, and the federal RICO statute. The Company filed a motion to compel arbitration on an individual basis, which was granted in February 2017. The plaintiff filed an arbitration demand seeking relief on an individual basis. The parties have tentatively reached a settlement of this matter which is not material to the Company’s financial position or results of operations. Regulatory Investigations. On May 9, 2016, following the announcement of the internal board review described more fully in “Management’s Discussion and Analysis of Financial Conditions and Results of Operations – Board Review” contained in Part II, Item 7 of the Company’s Annual Report (referenced to herein as the “internal 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 and Federal Trade Commission (FTC). The Company continues cooperating with the DOJ, SEC, FTC and any other governmental or regulatory authorities or agencies. No assurance can be given as to the timing or outcome of these matters. 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, including inquiries by state regulatory bodies related to the Company’s marketplace lending model. These include inquiries from the California Department of Business Oversight and the New York Department of Financial Services. The Company is also in discussions with the Colorado Department of Law and the West Virginia Attorney General’s office to potentially resolve their concerns. Probable losses accrued are not material. No assurance can be given as to the timing or outcome of any of these matters.

Segment Reporting

Segment Reporting	9 Months Ended
	Sep. 30, 2017
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 the product types of personal loans, and education and patient finance loans. These product types are aggregated and viewed as one operating segment, and therefore, one reportable segment because the small business, auto, and education and patient finance operating segments 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.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Company has evaluated the impact of events that have occurred subsequent to September 30, 2017 , 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, including as disclosed below, the Company has determined none of these events were required to be recognized or disclosed. Entry into Warehouse Credit Facility On October 10, 2017, LendingClub Warehouse I LLC (Warehouse), a wholly-owned subsidiary of the Company, entered into a warehouse credit agreement (Warehouse Credit Agreement) with certain lenders for an aggregate $250 million secured revolving credit facility (Warehouse Credit Facility). In connection with the Warehouse Credit Agreement, the Warehouse 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 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. In October 2017, the Company drew $138.0 million in funding under the Warehouse Credit Facility to support upcoming securitization initiatives. Wind-down of Certain Funds During the month of October 2017, LCAM facilitated the sale of investments, in Certificate form, held by 6 legacy funds and initiated the full wind-down of these legacy funds. The Company sold the loans underlying the redeemed Certificates as loan participations in October 2017, which had an outstanding principal balance of $424.6 million at September 30, 2017.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2017
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 online 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, for an approximate ownership interest of 15% 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 September 30, 2017 , the Company and Mr. John Mack, one of the Company’s board members, had an ownership interest of approximately 23% and 4% , respectively, in the Investment Fund. During the first nine months of 2017 , this family of funds purchased $53.3 million of whole loans and interests in whole loans. During the first nine months of 2017 , the Company earned $625 thousand in investor fees from this family of funds, and paid interest of $6.0 million on interests in whole loans to the family of funds. The Company believes that the sales of whole loans and interests in whole loans, and the investor fees charged were on terms and conditions that were not more favorable than those obtained by other third-party investors.

Summary of Significant Accoun26

Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2017
Accounting Policies [Abstract]
Basis of Accounting	LendingClub Corporation (LendingClub) operates an online marketplace lending 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 (Certificates) issued by the Trust that are related to specific underlying loans for the benefit of the investor. LendingClub Warehouse I LLC (Warehouse) is a wholly-owned subsidiary of LendingClub established to enter into a warehouse credit agreement with certain lenders for a secured revolving credit facility. In connection with its role as the sponsor of an asset-backed securities securitization transaction, LendingClub owns a 56% interest in a majority-owned affiliate (MOA), LendingClub Operated Aggregator Note (LOAN) NP I, LLC. LendingClub holds a controlling financial interest and is the primary beneficiary of the MOA and consolidates the MOA in its financial statements. Additionally, in the third quarter of 2017, LendingClub established Consumer Loan Underlying Bond Depositor LLC (Depositor), a wholly-owned limited liability company, to facilitate LendingClub-sponsored asset-backed securities securitization transactions. For additional information about the Company’s securitization activities, see “Note 6. Securitizations of Personal Whole Loans.” 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 first quarter of 2017, the Company simplified the presentation of “Total net revenue” in the unaudited Condensed Consolidated Statements of Operations to present revenues from transactions with investors as a single line item reported as “Investor fees “ by aggregating the revenues previously separately reported as “Servicing fees” and “Management fees.” Additionally, the Company aggregated “Fair value adjustments – loans, loans held for sale, notes and certificates” into “Other revenue (expense).” 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, 2016 (Annual Report) filed on February 28, 2017.
Transfers of Financial Assets	Transfers of Financial Assets The Company accounts for transfers of financial assets as sales when it has surrendered control over the related assets. Whether control has been relinquished requires, among other things, an evaluation of relevant legal considerations and an assessment of the nature and extent of the Company’s continuing involvement with the assets transferred. Gains and losses resulting from transfers are included in “Other revenue” in the accompanying consolidated statements of operations. Assets obtained and liabilities incurred in connection with transfers reported as sales are initially recognized in the balance sheet at fair value. Transfers of financial assets that do not qualify for sale accounting are reported as secured borrowings. Accordingly, the related assets remain on the Company’s balance sheet and continue to be reported and accounted for as if the transfer had not occurred. Cash proceeds from these transfers are reported as liabilities, with related interest expense recognized over the life of the related transactions.
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill represents the fair value of an acquired business in excess of the aggregate fair value of the identified net assets acquired. Goodwill is not amortized but is tested for impairment annually or whenever events or circumstances indicate that it is more likely than not that the estimated fair value of a reporting unit is below its carrying value. The Company’s annual impairment testing date is April 1. Impairment exists whenever the carrying value of goodwill exceeds its estimated fair value. Adverse changes in impairment indicators such as loss of key personnel, lower than forecast financial performance, increased competition, increased regulatory oversight, or unplanned changes in operations could result in impairment. The Company can elect to qualitatively assess goodwill for impairment if it is more likely than not that the estimated fair value of a reporting unit (generally defined as a component of a business for which financial information is available and reviewed regularly by management) exceeds its carrying value. A qualitative assessment may consider macroeconomic and other industry-specific factors, such as trends in short-term and long-term interest rates and the ability to access capital or company-specific factors, such as market capitalization in excess of net assets, trends in revenue-generating activities and merger or acquisition activity. If the Company does not qualitatively assess goodwill it compares a reporting unit’s estimated fair value to its carrying value. The Company estimates the fair value of a reporting unit using both an income approach and a market approach. The Company relies on the income approach (discounted cash flow method) as the primary method for determining estimated fair value. Market-based methods are used as benchmarks to corroborate the estimated fair value determined by the discounted cash flow method. Both the income approach and the market approach rely on long-term growth rates, and revenue and earnings projections. When applying the income approach, the Company uses a discounted cash flow model, which requires the estimation of cash flows and an appropriate discount rate. The Company projects cash flows expected to be generated by a reporting unit inclusive of an estimated terminal value. The discount rate assumption contemplates a weighted-average cost of capital based on both market observable and company-specific factors. The discount rate is risk-adjusted to include any premiums related to equity price volatility, size, and projected capital structure of publicly traded companies in similar lines of business. The Company relies on several assumptions when estimating the fair value of a reporting unit using the discounted cash flow method. These assumptions include the current discount rate discussed above, as well as transaction fee revenue based on projected loan origination growth, ongoing network provider participation, projected operating expenses and contribution margin, capital expenditures and income taxes. The Company believes these assumptions to be representative of assumptions that a market participant would use in valuing a reporting unit, but these assumptions are inherently uncertain. If the assumptions regarding business operating plans, projected loan origination growth and transaction fee rates, operating expenses, or competition in the industry are not achieved, the Company may be required to record goodwill impairment charges in future periods. There can be no assurances that future estimates and assumptions made for purposes of goodwill impairment testing will prove accurate predictions of the future. The market approach estimates the fair value of a reporting unit based on certain market value multiples of publicly traded companies in similar lines of business, such as total enterprise value to revenue, or to EBITDA. Under the market approach, the Company also considers fair value implied from any relevant and comparable market transactions. Intangible assets are amortized over their useful lives in a manner that best reflects their economic benefit, which may include straight-line or accelerated methods of amortization. Intangible assets are reviewed for impairment quarterly and whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. The Company does not have any indefinite-lived intangible assets.
Noncontrolling Interests	Noncontrolling Interests Noncontrolling interests represent the noncontrolling holders’ share of income or losses, and share of total equity, from a consolidated subsidiary or consolidated VIE in which the Company holds less than 100% ownership.
Legal Expenses	Legal Expenses Legal fees are expensed as incurred and are included in other general and administrative expenses in the consolidated statements of operations. Insurance recoveries associated with the reimbursement of legal expenses incurred, if any, are included in other general and administrative expenses as a contra-expense in the consolidated statements of operations.
Adoption of New Accounting Standards	Adoption of New Accounting Standards The Company adopted the following accounting standards during the nine month period ended September 30, 2017 : ASU 2016-09 Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting (ASU 2016-09), simplifies the accounting for employee share-based payment transactions, including the associated accounting for income taxes, forfeitures, and classification in the statement of cash flows. The Company adopted ASU 2016-09 effective January 1, 2017, under the modified retrospective method with the cumulative effect of adoption recorded as a reclassification to 2017 beginning accumulated deficit. The Company also elected to present the change in presentation in the Statement of Cash Flows related to excess tax benefits prospectively and, therefore, prior period amounts have not been adjusted. Under ASU 2016-09, the Company now recognizes the excess income tax benefits or deficiencies from stock-based compensation in the income tax provision in the Consolidated Statements of Operations, and as an operating activity in the Consolidated Statements of Cash Flows. Additionally, excess tax benefits and tax deficiencies are now excluded from the calculation of assumed proceeds under the treasury stock method when computing fully diluted earnings per share. Upon the adoption of this standard, the Company recognized a $57.0 million deferred tax asset with a full valuation allowance (net zero impact upon adoption) in the consolidated balance sheets for the excess income tax benefits from stock-based compensation as of January 1, 2017. The Company also elected to recognize forfeitures as they occur for equity awards with only a service condition, rather than estimate expected forfeitures, as permitted by ASU 2016-09. The Company recorded a $1.4 million reclassification to 2017 beginning accumulated deficit to remove the estimate of forfeitures as of January 1, 2017. ASU 2017-04, Intangibles – Goodwill and Other (Topic 350) – Simplifying the Test for Goodwill Impairment, simplifies the accounting for goodwill impairments by eliminating Step 2 of the goodwill impairment test. Under ASU 2017-04, a goodwill impairment loss is now measured as the amount by which the carrying amount of a reporting unit exceeds its fair value. The Company elected to early adopt ASU 2017-04 effective January 1, 2017. The adoption did not have an effect on the Company’s condensed consolidated financial statements for the nine month period ended September 30, 2017 . New Accounting Standards Not Yet Adopted Updates to the new accounting standards not yet adopted as disclosed in the Company’s Annual Report for the year ended December 31, 2016 are as follows: In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which will be effective January 1, 2018. The guidance clarifies that revenue from contracts with customers should be recognized in a manner that depicts both the likelihood of payment and the timing of the related transfer of goods or performance of services. In March 2016, the FASB issued an amendment (ASU 2016-08) to the new revenue recognition guidance clarifying how to determine if an entity is a principal or agent in a transaction. In April (ASU 2016-10) and May (ASU 2016-12) of 2016, the FASB further amended the guidance to include performance obligation identification, licensing implementation, collectability assessment and other presentation and transition clarifications. The effective date and transition requirements for the amendments are the same as for ASU 2014-09. The Company plans to adopt the revenue recognition guidance beginning January 1, 2018 and currently anticipates using the modified retrospective method of adoption. However, the adoption method to be used is subject to completion of the Company’s impact assessment. Upon adoption of Topic 606, as amended, the Company believes there will be no change to (1) the timing and pattern of revenue recognition for its current revenue streams in scope of Topic 606 which includes transaction fees and LCAM investment management fees, (2) the presentation of revenue as gross versus net, or (3) the amount of capitalized contract costs. Because there will be no change to the timing and pattern of revenue recognition, we believe there will be no material changes to the Company’s processes and internal controls. The Company has dedicated internal resources, engaged a service provider, and continues to execute the final phase of its implementation project plan to conclude on the method of adoption and quantify the adoption effects, if any, and prepare the expanded disclosures required by Topic 606. The Company also will continue to evaluate new revenue streams and analyze other aspects of Topic 606 that may become relevant. ASU 2017-09, Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting, (ASU 2017-09) , clarifies when to account for a change to the terms or conditions of a share-based payment award as a modification. Under ASU 2017-09, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. The guidance is effective prospectively for all companies for annual periods beginning on or after December 15, 2017. Early adoption is permitted. The Company is still evaluating the impact of this ASU to its consolidated financial statements.

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	9 Months Ended
	Sep. 30, 2017
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 Nine Months Ended 2017 2016 2017 2016 LendingClub net loss $ (6,530 ) $ (36,486 ) $ (61,828 ) $ (113,700 ) Weighted average common shares - Basic 412,778,995 391,453,316 406,633,850 385,037,334 Weighted average common shares - Diluted 412,778,995 391,453,316 406,633,850 385,037,334 Net loss per share attributable to LendingClub: Basic $ (0.02 ) $ (0.09 ) $ (0.15 ) $ (0.30 ) Diluted $ (0.02 ) $ (0.09 ) $ (0.15 ) $ (0.30 )

Securities Available for Sale (

Securities Available for Sale (Tables)	9 Months Ended
	Sep. 30, 2017
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 September 30, 2017 and December 31, 2016 , were as follows: September 30, 2017 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Corporate debt securities $ 123,007 $ 176 $ (30 ) $ 123,153 Asset-backed securities related to Company- sponsored securitization transactions (1) 33,293 24 (32 ) 33,285 Certificates of deposit 25,920 — — 25,920 Asset-backed securities 15,454 — (3 ) 15,451 Commercial paper 9,981 — — 9,981 U.S. agency securities 5,000 1 — 5,001 U.S. Treasury securities 2,496 — (4 ) 2,492 Other securities 4,001 1 — 4,002 Total securities available for sale $ 219,152 $ 202 $ (69 ) $ 219,285 December 31, 2016 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Corporate debt securities $ 181,359 $ 63 $ (199 ) $ 181,223 Certificates of deposit 27,501 — — 27,501 Asset-backed securities 25,369 4 (9 ) 25,364 Commercial paper 20,164 — — 20,164 U.S. agency securities 19,602 21 — 19,623 U.S. Treasury securities 2,493 3 — 2,496 Other securities 10,805 — (39 ) 10,766 Total securities available for sale $ 287,293 $ 91 $ (247 ) $ 287,137
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	A summary of securities available for sale with unrealized losses as of September 30, 2017 and December 31, 2016 , aggregated by period of continuous unrealized loss, is as follows: Less than 12 months 12 months or longer Total September 30, 2017 Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses Corporate debt securities $ 37,291 $ (20 ) $ 8,347 $ (10 ) $ 45,638 $ (30 ) Asset-backed securities related to Company-sponsored securitization transactions 19,187 (32 ) — — 19,187 (32 ) Asset-backed securities 4,233 (3 ) — — 4,233 (3 ) U.S. Treasury securities 2,492 (4 ) — — 2,492 (4 ) Total securities with unrealized losses (1) $ 63,203 $ (59 ) $ 8,347 $ (10 ) $ 71,550 $ (69 ) Less than 12 months Total December 31, 2016 Fair Unrealized Fair Unrealized Fair Unrealized Corporate debt securities $ 107,862 $ (185 ) $ 11,682 $ (14 ) $ 119,544 $ (199 ) Asset-backed securities 6,628 (8 ) 1,870 (1 ) 8,498 (9 ) Other securities 6,800 (3 ) 3,966 (36 ) 10,766 (39 ) Total securities with unrealized losses (1) $ 121,290 $ (196 ) $ 17,518 $ (51 ) $ 138,808 $ (247 ) (1) The number of investment positions with unrealized losses at September 30, 2017 and December 31, 2016 totaled 41 and 72 , respectively.
Available-for-sale Securities by Contractual Maturity	The contractual maturities of securities available for sale at September 30, 2017 , were as follows: Within 1 year After 1 year through 5 years After 5 years through 10 years After 10 years Total Corporate debt securities $ 90,952 $ 32,201 $ — $ — $ 123,153 Asset-backed securities related to Company-sponsored securitization transactions — — 33,285 — 33,285 Certificates of deposit 25,920 — — — 25,920 Asset-backed securities 8,228 7,223 — — 15,451 Commercial paper 9,981 — — — 9,981 U.S. agency securities 5,001 — — — 5,001 U.S. Treasury securities — 2,492 — — 2,492 Other securities — 4,002 — — 4,002 Total fair value $ 140,082 $ 45,918 $ 33,285 $ — $ 219,285 Total amortized cost $ 140,055 $ 45,804 $ 33,293 $ — $ 219,152

Loans, Loans Held For Sale, N29

Loans, Loans Held For Sale, Notes and Certificates and Loan Servicing Rights (Tables)	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Loans and Notes and Certificates	At September 30, 2017 and December 31, 2016 , loans, loans held for sale, notes and certificates measured at fair value on a recurring basis were as follows: Loans (1) Loans Held For Sale (1)(2) Notes and Certificates September 30, December 31, September 30, December 31, September 30, December 31, Aggregate principal balance outstanding $ 3,620,061 $ 4,565,653 $ 277,191 $ 9,345 $ 3,725,615 $ 4,572,912 Net fair value adjustments (206,168 ) (253,669 ) (11,266 ) (297 ) (210,037 ) (252,017 ) Fair value $ 3,413,893 $ 4,311,984 $ 265,925 $ 9,048 $ 3,515,578 $ 4,320,895 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates, as summarized in the table below. (2) Loans held for sale at September 30, 2017, include $91.5 million in loans at fair value related to the LCAM legacy fund wind-down, as described in “Note 18. Subsequent Event s.”
Loans Invested in by Company	At September 30, 2017 and December 31, 2016 , loans invested in by the Company for which there were no associated notes or certificates were as follows: Loans Invested in by the Company Loans Loans Held For Sale Total September 30, 2017 December 31, 2016 September 30, 2017 December 31, 2016 September 30, 2017 December 31, 2016 Aggregate principal balance outstanding $ 13,891 18,515 $ 180,299 $ 9,345 $ 194,190 $ 27,860 Net fair value adjustments (1,488 ) (1,652 ) (5,908 ) (297 ) (7,396 ) (1,949 ) Fair value $ 12,403 16,863 $ 174,391 $ 9,048 $ 186,794 $ 25,911
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Table	The following tables present loans invested in by the Company for the third quarters and first nine months of 2017 and 2016 : Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2017 $ 57,221 $ (2,371 ) $ 54,850 Beginning balance at June 30, 2016 $ 35,672 $ (1,126 ) $ 34,546 Purchases 586,708 (473 ) 586,235 Purchases 3,579 — 3,579 Sales (429,481 ) 1,741 (427,740 ) Sales (6 ) — (6 ) Principal payments (18,720 ) — (18,720 ) Principal payments (4,352 ) — (4,352 ) Charge-offs (1,538 ) 1,538 — Charge-offs (701 ) 701 — Recoveries — (56 ) (56 ) Recoveries — (562 ) (562 ) Change in fair value recorded in earnings — (7,775 ) (7,775 ) Change in fair value recorded in earnings — (476 ) (476 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2016 $ 27,860 $ (1,949 ) $ 25,911 Beginning balance at December 31, 2015 $ 3,462 $ (4 ) $ 3,458 Purchases 777,117 (481 ) 776,636 Purchases 175,600 — 175,600 Sales (576,065 ) 2,634 (573,431 ) Sales (135,531 ) — (135,531 ) Principal payments (30,703 ) — (30,703 ) Principal payments (8,534 ) — (8,534 ) Charge-offs (4,019 ) 4,019 — Charge-offs (805 ) 805 — Recoveries — (256 ) (256 ) Recoveries — (580 ) (580 ) Change in fair value recorded in earnings — (11,363 ) (11,363 ) Change in fair value recorded in earnings — (1,684 ) (1,684 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 The following tables present additional information about Level 3 loans, loans held for sale, notes and certificates measured at fair value on a recurring basis for the third quarters and first nine months of 2017 and 2016 : Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2017 $ 4,041,550 $ (244,551 ) $ 3,796,999 $ 37,287 $ (956 ) $ 36,331 $ 4,048,717 $ (243,135 ) $ 3,805,582 Purchases 405,472 (469 ) 405,003 1,931,088 (2,136 ) 1,928,952 — — — Transfers from loans to loans held for sale (113,587 ) — (113,587 ) 113,587 — 113,587 — — — Issuances — — — — — — 394,013 — 394,013 Sales — — — (1,787,527 ) 3,874 (1,783,653 ) — — — Principal payments and retirements (597,304 ) — (597,304 ) (16,710 ) — (16,710 ) (602,051 ) 2 (602,049 ) Charge-offs (116,070 ) 116,070 — (534 ) 534 — (115,064 ) 115,064 — Recoveries — (12,114 ) (12,114 ) — — — — (12,057 ) (12,057 ) Change in fair value recorded in earnings — (65,104 ) (65,104 ) — (12,582 ) (12,582 ) — (69,911 ) (69,911 ) Ending balance at September 30, 2017 $ 3,620,061 $ (206,168 ) $ 3,413,893 $ 277,191 $ (11,266 ) $ 265,925 $ 3,725,615 $ (210,037 ) $ 3,515,578 Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2016 $ 4,748,631 $ (340,870 ) $ 4,407,761 $ 16,627 $ (217 ) $ 16,410 $ 4,755,846 $ (339,961 ) $ 4,415,885 Purchases 646,662 — 646,662 1,093,868 — 1,093,868 — — — Transfers from loans to loans held for sale (2,269 ) — (2,269 ) 2,269 — 2,269 — — — Issuances — — — — — — 644,168 — 644,168 Sales — — — (1,095,716 ) — (1,095,716 ) — — — Principal payments and retirements (603,452 ) — (603,452 ) (2,143 ) — (2,143 ) (604,160 ) — (604,160 ) Charge-offs (112,517 ) 112,517 — — — — (111,816 ) 111,816 — Recoveries — (10,517 ) (10,517 ) — — — — (9,955 ) (9,955 ) Change in fair value recorded in earnings — (26,559 ) (26,559 ) — 56 56 — (26,027 ) (26,027 ) Ending balance at September 30, 2016 $ 4,677,055 $ (265,429 ) $ 4,411,626 $ 14,905 $ (161 ) $ 14,744 $ 4,684,038 $ (264,127 ) $ 4,419,911 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates, as summarized in the tables below. Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2016 $ 4,565,653 $ (253,669 ) $ 4,311,984 $ 9,345 $ (297 ) $ 9,048 $ 4,572,912 $ (252,017 ) $ 4,320,895 Purchases 1,408,138 (474 ) 1,407,664 4,829,498 4,287 4,833,785 — — — Transfers from loans to loans held for sale (113,587 ) — (113,587 ) 113,587 — 113,587 — — — Issuances — — — — — — 1,389,999 — 1,389,999 Sales — — — (4,648,913 ) (1,656 ) (4,650,569 ) — — — Principal payments and retirements (1,862,767 ) — (1,862,767 ) (25,431 ) — (25,431 ) (1,863,045 ) 4 (1,863,041 ) Charge-offs (377,376 ) 377,376 — (895 ) 895 — (374,251 ) 374,251 — Recoveries — (34,808 ) (34,808 ) — — — — (34,550 ) (34,550 ) Change in fair value recorded in earnings — (294,593 ) (294,593 ) — (14,495 ) (14,495 ) — (297,725 ) (297,725 ) Ending balance at September 30, 2017 $ 3,620,061 $ (206,168 ) $ 3,413,893 $ 277,191 $ (11,266 ) $ 265,925 $ 3,725,615 $ (210,037 ) $ 3,515,578 Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2015 $ 4,681,671 $ (125,590 ) $ 4,556,081 $ — $ — $ — $ 4,697,169 $ (125,586 ) $ 4,571,583 Purchases 2,093,692 — 2,093,692 3,623,453 — 3,623,453 — — — Transfers from loans to loans held for sale (30,802 ) — (30,802 ) 30,802 — 30,802 — — — Issuances — — — — — — 2,047,714 — 2,047,714 Sales — — — (3,635,330 ) — (3,635,330 ) — — — Principal payments and retirements (1,782,603 ) — (1,782,603 ) (4,020 ) — (4,020 ) (1,776,747 ) — (1,776,747 ) Charge-offs (284,903 ) 284,903 — — — — (284,098 ) 284,098 — Recoveries — (27,451 ) (27,451 ) — — — — (26,871 ) (26,871 ) Change in fair value recorded in earnings — (397,291 ) (397,291 ) — (161 ) (161 ) — (395,768 ) (395,768 ) Ending balance at September 30, 2016 $ 4,677,055 $ (265,429 ) $ 4,411,626 $ 14,905 $ (161 ) $ 14,744 $ 4,684,038 $ (264,127 ) $ 4,419,911 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates, as summarized in the tables below. 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 third quarters and first nine months of 2017 and 2016 : Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2017 $ 57,221 $ (2,371 ) $ 54,850 Beginning balance at June 30, 2016 $ 35,672 $ (1,126 ) $ 34,546 Purchases 586,708 (473 ) 586,235 Purchases 3,579 — 3,579 Sales (429,481 ) 1,741 (427,740 ) Sales (6 ) — (6 ) Principal payments (18,720 ) — (18,720 ) Principal payments (4,352 ) — (4,352 ) Charge-offs (1,538 ) 1,538 — Charge-offs (701 ) 701 — Recoveries — (56 ) (56 ) Recoveries — (562 ) (562 ) Change in fair value recorded in earnings — (7,775 ) (7,775 ) Change in fair value recorded in earnings — (476 ) (476 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2016 $ 27,860 $ (1,949 ) $ 25,911 Beginning balance at December 31, 2015 $ 3,462 $ (4 ) $ 3,458 Purchases 777,117 (481 ) 776,636 Purchases 175,600 — 175,600 Sales (576,065 ) 2,634 (573,431 ) Sales (135,531 ) — (135,531 ) Principal payments (30,703 ) — (30,703 ) Principal payments (8,534 ) — (8,534 ) Charge-offs (4,019 ) 4,019 — Charge-offs (805 ) 805 — Recoveries — (256 ) (256 ) Recoveries — (580 ) (580 ) Change in fair value recorded in earnings — (11,363 ) (11,363 ) Change in fair value recorded in earnings — (1,684 ) (1,684 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 The following tables present additional information about Level 3 servicing assets and liabilities measured at fair value on a recurring basis for the third quarters and first nine months of 2017 and 2016 : Three Months Ended September 30, 2017 Three Months Ended September 30, 2016 Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Fair value at beginning of period $ 25,901 $ 1,711 $ 16,126 $ 3,412 Issuances (1) 10,563 19 3,009 712 Change in fair value, included in investor fees (6,961 ) (499 ) (2,429 ) (727 ) Other net changes included in deferred revenue 118 — (451 ) — Fair value at end of period $ 29,621 $ 1,231 $ 16,255 $ 3,397 Nine Months Ended Nine Months Ended Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Fair value at beginning of period $ 21,398 $ 2,846 $ 10,250 $ 3,973 Issuances (1) 24,460 332 12,984 2,452 Change in fair value, included in investor fees (16,083 ) (1,947 ) (7,092 ) (3,028 ) Other net changes included in deferred revenue (154 ) — 113 — Fair value at end of period $ 29,621 $ 1,231 $ 16,255 $ 3,397 (1) Represents the gains or losses on sales of the related loans, recorded in other revenue.
Past Due Financing Receivables	At September 30, 2017 and December 31, 2016 , loans that were 90 days or more past due (including non-accrual loans) were as follows: September 30, 2017 December 31, 2016 > 90 days past due Non-accrual loans > 90 days past due Non-accrual loans Loans and loans held for sale (1) : Outstanding principal balance $ 42,258 $ 4,945 $ 45,718 $ 5,055 Net fair value adjustments (35,499 ) (4,123 ) (40,183 ) (4,392 ) Fair value $ 6,759 $ 822 $ 5,535 $ 663 Number of loans (not in thousands) 4,023 507 4,041 483 Loans invested in by the Company: Outstanding principal balance $ 1,087 $ 189 $ 511 $ 90 Net fair value adjustments (932 ) (165 ) (449 ) (80 ) Fair value $ 155 $ 24 $ 62 $ 10 Number of loans (not in thousands) 265 38 154 18 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates.

Securitization of Personal Wh30

Securitization of Personal Whole Loans (Tables)	9 Months Ended
	Sep. 30, 2017
Transfers and Servicing [Abstract]
Sensitivity Analysis of Fair Value, Securities and Certificates	The fair value sensitivity of the senior securities and subordinated residual certificates to adverse changes in key assumptions are as follows: September 30, 2017 Asset-backed securities related to Company-sponsored securitization transactions Senior securities Subordinated residual certificates Fair value of interests held $ 27,883 $ 5,402 Expected weighted-average life (in years) 1.1 1.5 Discount rates 100 basis point increase $ (279 ) $ 72 200 basis point increase $ (551 ) $ (143 ) Expected credit loss rates on underlying loans 10% adverse change $ — $ (637 ) 20% adverse change $ — $ (1,262 ) Expected prepayment rates 10% adverse change $ — $ (114 ) 20% adverse change $ (1 ) $ (250 )

Fair Value of Assets and Liab31

Fair Value of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Loans, Loan Servicing Rights, Related Notes and Certificates	The following tables present the fair value hierarchy for assets and liabilities measured at fair value: September 30, 2017 Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Loans $ — $ — $ 3,413,893 $ 3,413,893 Loans held for sale — — 265,925 265,925 Securities available for sale: Corporate debt securities — 123,153 — 123,153 Certificates of deposit — 25,920 — 25,920 Asset-backed securities — 15,451 — 15,451 Commercial paper — 9,981 — 9,981 U.S. agency securities — 5,001 — 5,001 U.S. Treasury securities — 2,492 — 2,492 Asset-backed securities related to Company-sponsored securitization transactions — 27,883 5,402 33,285 Other securities — 4,002 — 4,002 Total securities available for sale — 213,883 5,402 219,285 Servicing assets — — 29,621 29,621 Total assets $ — $ 213,883 $ 3,714,841 $ 3,928,724 Liabilities: Notes and certificates $ — $ — $ 3,515,578 $ 3,515,578 Servicing liabilities — — 1,231 1,231 Loan trailing fee liability — — 7,774 7,774 Total liabilities $ — $ — $ 3,524,583 $ 3,524,583 December 31, 2016 Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Assets: Loans $ — $ — $ 4,311,984 $ 4,311,984 Loans held for sale — — 9,048 9,048 Securities available for sale: Corporate debt securities — 181,223 — 181,223 Certificates of deposit — 27,501 — 27,501 Asset-backed securities — 25,364 — 25,364 Commercial paper — 20,164 — 20,164 U.S. agency securities — 19,623 — 19,623 U.S. Treasury securities — 2,496 — 2,496 Other securities — 10,766 — 10,766 Total securities available for sale — 287,137 — 287,137 Servicing assets — — 21,398 21,398 Total assets $ — $ 287,137 $ 4,342,430 $ 4,629,567 Liabilities: Notes and certificates $ — $ — $ 4,320,895 $ 4,320,895 Loan trailing fee liability — — 4,913 4,913 Servicing liabilities — — 2,846 2,846 Total liabilities $ — $ — $ 4,328,654 $ 4,328,654
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 September 30, 2017 and December 31, 2016 : September 30, 2017 Loans, Loans Held for Sale, Notes and Certificates Asset-Backed Securities Related to Consolidated VIE Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.8 % 17.2 % 8.3 % 15.0 % 15.0 % 15.0 % Net cumulative expected loss rates (1)(3) 0.8 % 41.4 % 13.5 % 12.8 % 20.3 % 17.1 % Cumulative expected prepayment rates (1)(3) 11.3 % 43.6 % 30.9 % 29.6 % 29.6 % 29.6 % September 30, 2017 Servicing Assets/Liabilities Loan Trailing Fee Liability Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.9 % 16.5 % 8.7 % 1.9 % 16.5 % 8.8 % Net cumulative expected loss rates (1) 0.8 % 41.4 % 12.0 % 0.8 % 41.4 % 12.7 % Cumulative expected prepayment rates (1) 11.3 % 43.6 % 31.8 % 11.3 % 43.6 % 31.4 % Total market servicing rates (% per annum on outstanding principal balance) (2) 0.65 % 0.90 % 0.65 % N/A N/A N/A December 31, 2016 Loans, Loans Held for Sale, Notes and Certificates Servicing Assets/Liabilities Loan Trailing Fee Liability Minimum Maximum Weighted Average Minimum Maximum Weighted Average Minimum Maximum Weighted Average Discount rates 1.2 % 16.6 % 7.2 % 3.4 % 15.1 % 7.8 % 3.4 % 15.0 % 7.7 % Net cumulative expected loss rates (1) 0.3 % 33.9 % 14.6 % 0.3 % 33.9 % 12.8 % 0.3 % 33.9 % 13.5 % Cumulative expected prepayment rates (1) 8.0 % 42.7 % 30.7 % 8.0 % 42.7 % 29.3 % 8.0 % 42.7 % 28.3 % Total market servicing rates (% per annum on outstanding principal balance) (2) N/A N/A N/A 0.63 % 0.90 % 0.63 % N/A N/A N/A N/A Not applicable (1) Expressed as a percentage of the original principal balance of the loan, note or certificate, except for asset-backed securities. (2) Includes collection fees estimated to be paid to a hypothetical third-party servicer. (3) 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 loans invested in by the Company for the third quarters and first nine months of 2017 and 2016 : Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2017 $ 57,221 $ (2,371 ) $ 54,850 Beginning balance at June 30, 2016 $ 35,672 $ (1,126 ) $ 34,546 Purchases 586,708 (473 ) 586,235 Purchases 3,579 — 3,579 Sales (429,481 ) 1,741 (427,740 ) Sales (6 ) — (6 ) Principal payments (18,720 ) — (18,720 ) Principal payments (4,352 ) — (4,352 ) Charge-offs (1,538 ) 1,538 — Charge-offs (701 ) 701 — Recoveries — (56 ) (56 ) Recoveries — (562 ) (562 ) Change in fair value recorded in earnings — (7,775 ) (7,775 ) Change in fair value recorded in earnings — (476 ) (476 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2016 $ 27,860 $ (1,949 ) $ 25,911 Beginning balance at December 31, 2015 $ 3,462 $ (4 ) $ 3,458 Purchases 777,117 (481 ) 776,636 Purchases 175,600 — 175,600 Sales (576,065 ) 2,634 (573,431 ) Sales (135,531 ) — (135,531 ) Principal payments (30,703 ) — (30,703 ) Principal payments (8,534 ) — (8,534 ) Charge-offs (4,019 ) 4,019 — Charge-offs (805 ) 805 — Recoveries — (256 ) (256 ) Recoveries — (580 ) (580 ) Change in fair value recorded in earnings — (11,363 ) (11,363 ) Change in fair value recorded in earnings — (1,684 ) (1,684 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 The following tables present additional information about Level 3 loans, loans held for sale, notes and certificates measured at fair value on a recurring basis for the third quarters and first nine months of 2017 and 2016 : Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2017 $ 4,041,550 $ (244,551 ) $ 3,796,999 $ 37,287 $ (956 ) $ 36,331 $ 4,048,717 $ (243,135 ) $ 3,805,582 Purchases 405,472 (469 ) 405,003 1,931,088 (2,136 ) 1,928,952 — — — Transfers from loans to loans held for sale (113,587 ) — (113,587 ) 113,587 — 113,587 — — — Issuances — — — — — — 394,013 — 394,013 Sales — — — (1,787,527 ) 3,874 (1,783,653 ) — — — Principal payments and retirements (597,304 ) — (597,304 ) (16,710 ) — (16,710 ) (602,051 ) 2 (602,049 ) Charge-offs (116,070 ) 116,070 — (534 ) 534 — (115,064 ) 115,064 — Recoveries — (12,114 ) (12,114 ) — — — — (12,057 ) (12,057 ) Change in fair value recorded in earnings — (65,104 ) (65,104 ) — (12,582 ) (12,582 ) — (69,911 ) (69,911 ) Ending balance at September 30, 2017 $ 3,620,061 $ (206,168 ) $ 3,413,893 $ 277,191 $ (11,266 ) $ 265,925 $ 3,725,615 $ (210,037 ) $ 3,515,578 Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2016 $ 4,748,631 $ (340,870 ) $ 4,407,761 $ 16,627 $ (217 ) $ 16,410 $ 4,755,846 $ (339,961 ) $ 4,415,885 Purchases 646,662 — 646,662 1,093,868 — 1,093,868 — — — Transfers from loans to loans held for sale (2,269 ) — (2,269 ) 2,269 — 2,269 — — — Issuances — — — — — — 644,168 — 644,168 Sales — — — (1,095,716 ) — (1,095,716 ) — — — Principal payments and retirements (603,452 ) — (603,452 ) (2,143 ) — (2,143 ) (604,160 ) — (604,160 ) Charge-offs (112,517 ) 112,517 — — — — (111,816 ) 111,816 — Recoveries — (10,517 ) (10,517 ) — — — — (9,955 ) (9,955 ) Change in fair value recorded in earnings — (26,559 ) (26,559 ) — 56 56 — (26,027 ) (26,027 ) Ending balance at September 30, 2016 $ 4,677,055 $ (265,429 ) $ 4,411,626 $ 14,905 $ (161 ) $ 14,744 $ 4,684,038 $ (264,127 ) $ 4,419,911 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates, as summarized in the tables below. Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2016 $ 4,565,653 $ (253,669 ) $ 4,311,984 $ 9,345 $ (297 ) $ 9,048 $ 4,572,912 $ (252,017 ) $ 4,320,895 Purchases 1,408,138 (474 ) 1,407,664 4,829,498 4,287 4,833,785 — — — Transfers from loans to loans held for sale (113,587 ) — (113,587 ) 113,587 — 113,587 — — — Issuances — — — — — — 1,389,999 — 1,389,999 Sales — — — (4,648,913 ) (1,656 ) (4,650,569 ) — — — Principal payments and retirements (1,862,767 ) — (1,862,767 ) (25,431 ) — (25,431 ) (1,863,045 ) 4 (1,863,041 ) Charge-offs (377,376 ) 377,376 — (895 ) 895 — (374,251 ) 374,251 — Recoveries — (34,808 ) (34,808 ) — — — — (34,550 ) (34,550 ) Change in fair value recorded in earnings — (294,593 ) (294,593 ) — (14,495 ) (14,495 ) — (297,725 ) (297,725 ) Ending balance at September 30, 2017 $ 3,620,061 $ (206,168 ) $ 3,413,893 $ 277,191 $ (11,266 ) $ 265,925 $ 3,725,615 $ (210,037 ) $ 3,515,578 Loans (1) Loans Held For Sale (1) Notes and Certificates Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2015 $ 4,681,671 $ (125,590 ) $ 4,556,081 $ — $ — $ — $ 4,697,169 $ (125,586 ) $ 4,571,583 Purchases 2,093,692 — 2,093,692 3,623,453 — 3,623,453 — — — Transfers from loans to loans held for sale (30,802 ) — (30,802 ) 30,802 — 30,802 — — — Issuances — — — — — — 2,047,714 — 2,047,714 Sales — — — (3,635,330 ) — (3,635,330 ) — — — Principal payments and retirements (1,782,603 ) — (1,782,603 ) (4,020 ) — (4,020 ) (1,776,747 ) — (1,776,747 ) Charge-offs (284,903 ) 284,903 — — — — (284,098 ) 284,098 — Recoveries — (27,451 ) (27,451 ) — — — — (26,871 ) (26,871 ) Change in fair value recorded in earnings — (397,291 ) (397,291 ) — (161 ) (161 ) — (395,768 ) (395,768 ) Ending balance at September 30, 2016 $ 4,677,055 $ (265,429 ) $ 4,411,626 $ 14,905 $ (161 ) $ 14,744 $ 4,684,038 $ (264,127 ) $ 4,419,911 (1) Loans and loans held for sale include loans invested in by the Company for which there were no associated notes or certificates, as summarized in the tables below. 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 third quarters and first nine months of 2017 and 2016 : Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at June 30, 2017 $ 57,221 $ (2,371 ) $ 54,850 Beginning balance at June 30, 2016 $ 35,672 $ (1,126 ) $ 34,546 Purchases 586,708 (473 ) 586,235 Purchases 3,579 — 3,579 Sales (429,481 ) 1,741 (427,740 ) Sales (6 ) — (6 ) Principal payments (18,720 ) — (18,720 ) Principal payments (4,352 ) — (4,352 ) Charge-offs (1,538 ) 1,538 — Charge-offs (701 ) 701 — Recoveries — (56 ) (56 ) Recoveries — (562 ) (562 ) Change in fair value recorded in earnings — (7,775 ) (7,775 ) Change in fair value recorded in earnings — (476 ) (476 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 Loans invested in by the Company Outstanding Principal Balance Valuation Adjustment Fair Value Outstanding Principal Balance Valuation Adjustment Fair Value Beginning balance at December 31, 2016 $ 27,860 $ (1,949 ) $ 25,911 Beginning balance at December 31, 2015 $ 3,462 $ (4 ) $ 3,458 Purchases 777,117 (481 ) 776,636 Purchases 175,600 — 175,600 Sales (576,065 ) 2,634 (573,431 ) Sales (135,531 ) — (135,531 ) Principal payments (30,703 ) — (30,703 ) Principal payments (8,534 ) — (8,534 ) Charge-offs (4,019 ) 4,019 — Charge-offs (805 ) 805 — Recoveries — (256 ) (256 ) Recoveries — (580 ) (580 ) Change in fair value recorded in earnings — (11,363 ) (11,363 ) Change in fair value recorded in earnings — (1,684 ) (1,684 ) Ending balance at September 30, 2017 $ 194,190 $ (7,396 ) $ 186,794 Ending balance at September 30, 2016 $ 34,192 $ (1,463 ) $ 32,729 The following tables present additional information about Level 3 servicing assets and liabilities measured at fair value on a recurring basis for the third quarters and first nine months of 2017 and 2016 : Three Months Ended September 30, 2017 Three Months Ended September 30, 2016 Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Fair value at beginning of period $ 25,901 $ 1,711 $ 16,126 $ 3,412 Issuances (1) 10,563 19 3,009 712 Change in fair value, included in investor fees (6,961 ) (499 ) (2,429 ) (727 ) Other net changes included in deferred revenue 118 — (451 ) — Fair value at end of period $ 29,621 $ 1,231 $ 16,255 $ 3,397 Nine Months Ended Nine Months Ended Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Fair value at beginning of period $ 21,398 $ 2,846 $ 10,250 $ 3,973 Issuances (1) 24,460 332 12,984 2,452 Change in fair value, included in investor fees (16,083 ) (1,947 ) (7,092 ) (3,028 ) Other net changes included in deferred revenue (154 ) — 113 — Fair value at end of period $ 29,621 $ 1,231 $ 16,255 $ 3,397 (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 third quarters and first nine months of 2017 and 2016 : Three Months Ended Nine Months Ended 2017 2016 2017 2016 Fair value at beginning of period $ 6,788 $ 2,324 $ 4,913 $ — Issuances 2,047 1,682 5,521 4,180 Cash payment of loan trailing fee (1,184 ) (395 ) (3,008 ) (585 ) Change in fair value, included in origination and servicing 123 113 348 129 Fair value at end of period $ 7,774 $ 3,724 $ 7,774 $ 3,724
Fair Value Sensitivity of Loans	The fair value sensitivity of loans invested in by the Company to adverse changes in key assumptions as of September 30, 2017 , are as follows: September 30, 2017 Fair value of loans invested in by the Company $ 186,794 Expected weighted-average life (in years) 1.6 Discount rates 100 basis point increase $ (2,301 ) 200 basis point increase $ (4,544 ) Expected credit loss rates on underlying loans 10% adverse change $ (3,282 ) 20% adverse change $ (6,448 ) Expected prepayment rates 10% adverse change $ (974 ) 20% adverse change $ (1,886 )
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 September 30, 2017 and December 31, 2016 : September 30, 2017 December 31, 2016 Servicing Assets Servicing Liabilities Servicing Assets Servicing Liabilities Weighted-average market servicing rate assumptions 0.65 % 0.65 % 0.63 % 0.63 % Change in fair value from: Servicing rate increase by 0.10% $ (7,203 ) $ 389 $ (5,673 ) $ 964 Servicing rate decrease by 0.10% $ 7,265 $ (327 ) $ 5,812 $ (825 )
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: September 30, 2017 Carrying Amount Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Cash and cash equivalents (1) $ 384,381 $ — $ 384,381 $ — $ 384,381 Restricted cash 182,844 — 182,844 — 182,844 Servicer reserve receivable 9,043 — 9,043 — 9,043 Deposits 855 — 855 — 855 Total assets $ 577,123 $ — $ 577,123 $ — $ 577,123 Liabilities: Accrued expenses and other liabilities $ 13,079 $ — $ — $ 13,079 $ 13,079 Accounts payable 7,503 — 7,503 — 7,503 Payables to investors 93,893 — 93,893 — 93,893 Total liabilities $ 114,475 $ — $ 101,396 $ 13,079 $ 114,475 (1) Carrying amount approximates fair value due to the short maturity of these financial instruments. December 31, 2016 Carrying Amount Level 1 Inputs Level 2 Inputs Level 3 Inputs Balance at Fair Value Assets: Cash and cash equivalents (1) $ 515,602 $ — $ 515,602 $ — $ 515,602 Restricted cash 177,810 — 177,810 — 177,810 Servicer reserve receivable 4,938 — 4,938 — 4,938 Deposits 855 — 855 — 855 Total assets $ 699,205 $ — $ 699,205 $ — $ 699,205 Liabilities: Accrued expenses and other liabilities $ 10,981 $ — $ — $ 10,981 $ 10,981 Accounts payable 10,889 — 10,889 — 10,889 Payables to investors 125,884 — 125,884 — 125,884 Total liabilities $ 147,754 $ — $ 136,773 $ 10,981 $ 147,754 (1) Carrying amount approximates fair value due to the short maturity of these financial instruments.

Property, Equipment and Softw32

Property, Equipment and Software, Net (Tables)	9 Months Ended
	Sep. 30, 2017
Property, Plant and Equipment [Abstract]
Property, Equipment and Software	Property, equipment and software, net, consist of the following: September 30, December 31, Internally developed software (1) $ 108,635 $ 75,202 Leasehold improvements 24,653 22,637 Computer equipment 18,854 18,080 Purchased software 7,750 7,598 Furniture and fixtures 7,229 6,827 Construction in progress 1,897 707 Total property, equipment and software 169,018 131,051 Accumulated depreciation and amortization (68,336 ) (41,788 ) Total property, equipment and software, net $ 100,682 $ 89,263 (1) Includes $12.3 million and $7.4 million in development in progress as of September 30, 2017 and December 31, 2016 , respectively.

Other Assets (Tables)

Other Assets (Tables)	9 Months Ended
	Sep. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other assets consist of the following: September 30, December 31, Loan servicing assets, at fair value $ 29,621 $ 21,398 Prepaid expenses 21,084 16,960 Other investments 10,411 10,372 Servicer reserve receivable 9,043 4,938 Accounts receivable 8,889 7,572 Insurance reimbursement receivable 7,119 — Receivable from investors 1,394 1,566 Due from related parties (1) 279 476 Tenant improvement receivable — 3,290 Other 3,539 3,072 Total other assets $ 91,379 $ 69,644 (1) Represents management fees from certain private funds for which LCAM or its subsidiaries act as the general partner.

Accrued Expenses and Other Li34

Accrued Expenses and Other Liabilities (Tables)	9 Months Ended
	Sep. 30, 2017
Payables and Accruals [Abstract]
Accrued Expenses and Other Liabilities	Accrued expenses and other liabilities consist of the following: September 30, December 31, Accrued compensation (1) $ 26,824 $ 27,009 Accrued expenses 25,252 19,734 Deferred rent 14,533 11,638 Transaction fee refund reserve 13,728 9,098 Loan trailing fee liability, at fair value 7,774 4,913 Deferred revenue 2,531 2,556 Reimbursement payable to limited partners of LCAM private funds 2,240 2,313 Contingent liabilities 1,813 — Loan servicing liabilities, at fair value 1,231 2,846 Payable to issuing banks 863 1,658 Credit loss coverage reserve — 2,529 Other 1,512 1,325 Total accrued expenses and other liabilities $ 98,301 $ 85,619 (1) Includes accrued cash retention awards of $0.6 million and $3.0 million as of September 30, 2017 and December 31, 2016 , respectively.

Employee Incentive Plans (Table

Employee Incentive Plans (Tables)	9 Months Ended
	Sep. 30, 2017
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 Nine Months Ended 2017 2016 2017 2016 Stock options $ 3,435 $ 6,208 $ 11,927 $ 17,632 RSUs 12,295 11,143 41,451 25,044 ESPP 376 438 1,155 1,273 Stock issued related to acquisition — 133 159 2,441 Total stock-based compensation expense $ 16,106 $ 17,922 $ 54,692 $ 46,390
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 Nine Months Ended 2017 2016 2017 2016 Sales and marketing $ 1,591 $ 1,699 $ 5,857 $ 5,016 Origination and servicing 1,049 1,013 3,819 2,722 Engineering and product development 4,640 4,931 17,001 13,134 Other general and administrative 8,826 10,279 28,015 25,518 Total stock-based compensation expense $ 16,106 $ 17,922 $ 54,692 $ 46,390

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2017
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 September 30, 2017 , were as follows: Operating Leases Subleases Net 2017 $ 4,081 $ 75 $ 4,006 2018 16,389 310 16,079 2019 16,626 39 16,587 2020 17,557 — 17,557 2021 17,844 — 17,844 Thereafter 46,163 — 46,163 Total $ 118,660 $ 424 $ 118,236

Basis of Presentation - Narrati

Basis of Presentation - Narrative (Details)	Sep. 30, 2017
Majority-owned affiliate
Noncontrolling Interest [Line Items]
Ownership percentage by parent	56.00%

Summary of Significant Accoun38

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jan. 01, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stock-based compensation and related tax effects	$ 62,078	$ 53,430
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred tax assets			$ 57,000
Accumulated Deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stock-based compensation and related tax effects	(1,397)
Accumulated Deficit | Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stock-based compensation and related tax effects	$ 1,400

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		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
LendingClub net loss	$ (6,530)	$ (36,486)	$ (61,828)	$ (113,700)
Basic weighted average common shares (shares)	412,778,995	391,453,316	406,633,850	385,037,334
Diluted weighted average common shares (shares)	412,778,995	391,453,316	406,633,850	385,037,334
Net loss per share attributable to LendingClub:
Basic ($ per share)	$ (0.02)	$ (0.09)	$ (0.15)	$ (0.30)
Diluted ($ per share)	$ (0.02)	$ (0.09)	$ (0.15)	$ (0.30)

Securities Available for Sale -

Securities Available for Sale - Amortized cost/fair value (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 219,152	$ 287,293
Gross Unrealized Gains	202	91
Gross Unrealized Losses	(69)	(247)
Fair Value	219,285	287,137
Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	5,402	0
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	123,007	181,359
Gross Unrealized Gains	176	63
Gross Unrealized Losses	(30)	(199)
Fair Value	123,153	181,223
Corporate debt securities | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	0
Asset-backed securities related to Company- sponsored securitization transactions (1)
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	33,293
Gross Unrealized Gains	24
Gross Unrealized Losses	(32)
Fair Value	33,285
Asset-backed securities related to Company- sponsored securitization transactions (1) | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	5,402
Asset-backed securities related to Company- sponsored securitization transactions (1) | Level 3 Inputs | Subordinated residual certificates
Schedule of Available-for-sale Securities [Line Items]
Fair Value	5,400
Certificates of deposit
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	25,920	27,501
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	25,920	27,501
Certificates of deposit | 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	15,454	25,369
Gross Unrealized Gains	0	4
Gross Unrealized Losses	(3)	(9)
Fair Value	15,451	25,364
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	9,981	20,164
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	9,981	20,164
Commercial paper | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	0
U.S. agency securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,000	19,602
Gross Unrealized Gains	1	21
Gross Unrealized Losses	0	0
Fair Value	5,001	19,623
U.S. agency securities | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	0
U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,496	2,493
Gross Unrealized Gains	0	3
Gross Unrealized Losses	(4)	0
Fair Value	2,492	2,496
U.S. Treasury securities | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	0
Other securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,001	10,805
Gross Unrealized Gains	1	0
Gross Unrealized Losses	0	(39)
Fair Value	4,002	10,766
Other securities | Level 3 Inputs
Schedule of Available-for-sale Securities [Line Items]
Fair Value	0	$ 0
Asset-backed securities related to Company-sponsored securitization transactions subject to restrictions on transfer
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 32,500

Securities Available for Sale41

Securities Available for Sale - Continuous loss (Details) $ in Thousands	Sep. 30, 2017USD ($)position	Dec. 31, 2016USD ($)position
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months	$ 63,203	$ 121,290
Unrealized Losses, Less than 12 months	(59)	(196)
Fair Value, 12 months or longer	8,347	17,518
Unrealized Losses, 12 months or longer	(10)	(51)
Fair Value	71,550	138,808
Unrealized Losses	$ (69)	$ (247)
Number of positions with unrealized losses | position	41	72
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months	$ 37,291	$ 107,862
Unrealized Losses, Less than 12 months	(20)	(185)
Fair Value, 12 months or longer	8,347	11,682
Unrealized Losses, 12 months or longer	(10)	(14)
Fair Value	45,638	119,544
Unrealized Losses	(30)	(199)
Asset-backed securities related to Company- sponsored securitization transactions (1)
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months	19,187
Unrealized Losses, Less than 12 months	(32)
Fair Value, 12 months or longer	0
Unrealized Losses, 12 months or longer	0
Fair Value	19,187
Unrealized Losses	(32)
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months	4,233	6,628
Unrealized Losses, Less than 12 months	(3)	(8)
Fair Value, 12 months or longer	0	1,870
Unrealized Losses, 12 months or longer	0	(1)
Fair Value	4,233	8,498
Unrealized Losses	(3)	(9)
U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months	2,492
Unrealized Losses, Less than 12 months	(4)
Fair Value, 12 months or longer	0
Unrealized Losses, 12 months or longer	0
Fair Value	2,492
Unrealized Losses	$ (4)
Other securities
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 months		6,800
Unrealized Losses, Less than 12 months		(3)
Fair Value, 12 months or longer		3,966
Unrealized Losses, 12 months or longer		(36)
Fair Value		10,766
Unrealized Losses		$ (39)

Securities Available for Sale42

Securities Available for Sale - Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair value
Within 1 year	$ 140,082
After 1 year through 5 years	45,918
After 5 years through 10 years	33,285
After 10 years	0
Total	219,285	$ 287,137
Amortized cost
Within 1 year	140,055
After 1 year through 5 years	45,804
After 5 years through 10 years	33,293
After 10 years	0
Total	219,152
Corporate debt securities
Fair value
Within 1 year	90,952
After 1 year through 5 years	32,201
After 5 years through 10 years	0
After 10 years	0
Total	123,153	181,223
Asset-backed securities related to Company- sponsored securitization transactions (1)
Fair value
Within 1 year	0
After 1 year through 5 years	0
After 5 years through 10 years	33,285
After 10 years	0
Total	33,285
Certificates of deposit
Fair value
Within 1 year	25,920
After 1 year through 5 years	0
After 5 years through 10 years	0
After 10 years	0
Total	25,920	27,501
Asset-backed securities
Fair value
Within 1 year	8,228
After 1 year through 5 years	7,223
After 5 years through 10 years	0
After 10 years	0
Total	15,451	25,364
Commercial paper
Fair value
Within 1 year	9,981
After 1 year through 5 years	0
After 5 years through 10 years	0
After 10 years	0
Total	9,981	20,164
U.S. agency securities
Fair value
Within 1 year	5,001
After 1 year through 5 years	0
After 5 years through 10 years	0
After 10 years	0
Total	5,001	19,623
U.S. Treasury securities
Fair value
Within 1 year	0
After 1 year through 5 years	2,492
After 5 years through 10 years	0
After 10 years	0
Total	2,492	2,496
Other securities
Fair value
Within 1 year	0
After 1 year through 5 years	4,002
After 5 years through 10 years	0
After 10 years	0
Total	$ 4,002	$ 10,766

Securities Available for Sale43

Securities Available for Sale - Gross realized losses (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Schedule of Available-for-sale Securities [Line Items]
Other than temporary impairment charges	$ 505,000	$ 0	$ 505,000	$ 0
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Sale of asset-backed securities	313,200,000	$ 0	578,600,000	$ 0
Realized gains (losses), net	$ 0		$ 0

Loans, Loans Held For Sale, N44

Loans, Loans Held For Sale, Notes and Certificates and Loan Servicing Rights (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	$ 3,413,893	$ 4,311,984
Loans held for sale	265,925	9,048
Fair Value	3,515,578	4,320,895
Fair Value, Measurements, Recurring | Loans(1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding	3,620,061	4,565,653
Fair value adjustments	(206,168)	(253,669)
Loans	3,413,893	4,311,984
Fair Value, Measurements, Recurring | Loans Held For Sale(1)(2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding	277,191	9,345
Fair value adjustments	(11,266)	(297)
Loans held for sale	265,925	9,048
Fair Value, Measurements, Recurring | Notes and Certificates
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding	3,725,615	4,572,912
Fair value adjustments	(210,037)	(252,017)
Fair Value	3,515,578	4,320,895
Fair Value, Measurements, Recurring | Loans Held for Sale Related to LCAM Legacy Fund Wind-down
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for sale	91,533	0
Loans Invested in by Company | Fair Value, Measurements, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding	194,190	27,860
Fair value adjustments	(7,396)	(1,949)
Loans and loans held for sale	186,794	25,911
Loans Invested in by Company | Fair Value, Measurements, Recurring | Loans(1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding	13,891	18,515
Fair value adjustments	(1,488)	(1,652)
Loans	12,403	16,863
Loans Invested in by Company | Fair Value, Measurements, Recurring | Loans Held For Sale(1)(2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Aggregate principal balance outstanding	180,299	9,345
Fair value adjustments	(5,908)	(297)
Loans held for sale	$ 174,391	$ 9,048

Loans, Loans Held For Sale, N45

Loans, Loans Held For Sale, Notes and Certificates and Loan Servicing Rights - Fair Value of Loans Invested in by the Company (Details) - Loans Invested in by Company - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Outstanding Principal Balance, Beginning	$ 57,221	$ 35,672	$ 27,860	$ 3,462
Valuation Adjustment, Beginning	(2,371)	(1,126)	(1,949)	(4)
Fair Value, Beginning	54,850	34,546	25,911	3,458
Outstanding Principal Balance, Purchases	586,708	3,579	777,117	175,600
Valuation Adjustment, Purchases	(473)	0	(481)	0
Fair Value, Purchases	586,235	3,579	776,636	175,600
Outstanding Principal Balance, Sales	(429,481)	(6)	(576,065)	(135,531)
Valuation Adjustment, Sales	1,741	0	2,634	0
Fair Value, Sales	(427,740)	(6)	(573,431)	(135,531)
Outstanding Principal Balance, Principal payments and retirements	(18,720)	(4,352)	(30,703)	(8,534)
Valuation Adjustment, Principal payments	0	0	0	0
Fair Value, Principal payments and retirements	(18,720)	(4,352)	(30,703)	(8,534)
Outstanding Principal Balance, Charge-offs	(1,538)	(701)	(4,019)	(805)
Valuation Adjustment, Charge-offs	1,538	701	4,019	805
Fair Value, Charge-offs	0	0	0	0
Outstanding Principal Balance, Recoveries	0	0	0	0
Valuation Adjustment, Recoveries	(56)	(562)	(256)	(580)
Fair Value, Recoveries	(56)	(562)	(256)	(580)
Outstanding Principal Balance, Change in fair value recorded in earnings	0	0	0	0
Valuation Adjustment, Change in fair value recorded in earnings	(7,775)	(476)	(11,363)	(1,684)
Fair Value, Change in fair value recorded in earnings	(7,775)	(476)	(11,363)	(1,684)
Outstanding Principal Balance, Ending	194,190	34,192	194,190	34,192
Valuation Adjustment, Ending	(7,396)	(1,463)	(7,396)	(1,463)
Fair Value, Ending	$ 186,794	$ 32,729	$ 186,794	$ 32,729

Loans, Loans Held For Sale, N46

Loans, Loans Held For Sale, Notes and Certificates and Loan Servicing Rights - Past Due Table (Details) $ in Thousands	Sep. 30, 2017USD ($)Loan	Dec. 31, 2016USD ($)Loan
Loans and Loans Held for Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Outstanding principal balance, past 90 days due	$ 42,258	$ 45,718
Outstanding principal balance, non-accrual loans	4,945	5,055
Net fair value adjustments, past 90 days due	(35,499)	(40,183)
Net fair value adjustments, non-accrual loans	(4,123)	(4,392)
Fair value, past 90 days due	6,759	5,535
Fair value, non-accrual loans	$ 822	$ 663
Number of loans, 90 days past due | Loan	4,023	4,041
Number of loans, non-accrual loans | Loan	507	483
Loans Invested in by Company
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Outstanding principal balance, past 90 days due	$ 1,087	$ 511
Outstanding principal balance, non-accrual loans	189	90
Net fair value adjustments, past 90 days due	(932)	(449)
Net fair value adjustments, non-accrual loans	(165)	(80)
Fair value, past 90 days due	155	62
Fair value, non-accrual loans	$ 24	$ 10
Number of loans, 90 days past due | Loan	265	154
Number of loans, non-accrual loans | Loan	38	18

Loans, Loans Held For Sale, N47

Loans, Loans Held For Sale, Notes and Certificates and Loan Servicing Rights - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Interest income	$ 151,532	$ 171,868	$ 469,788	$ 529,432
Loan commitment purchases	586,700		$ 777,100
Nonaccrual policy			120 days
Loan Servicing Rights
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Principal balance of underlying loan servicing rights	7,630,000		$ 7,630,000		$ 6,540,000
Loans Invested in by Company
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Outstanding Principal Balance, Sales	(429,481)	(6)	(576,065)	(135,531)
Outstanding Principal Balance, Principal payments and retirements	(18,720)	$ (4,352)	(30,703)	$ (8,534)
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	25,000		25,000
Fair Value, Measurements, Recurring | Loans Held For Sale
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Aggregate principal balance outstanding	277,191		277,191		9,345
Fair Value, Measurements, Recurring | Loans Invested in by Company
Loans, Notes and Certificates, and Loan Servicing Rights [Line Items]
Net change in fair value of loans recorded in earnings	(7,800)		(11,400)
Interest income	10,100		16,300
Aggregate principal balance outstanding	194,190		194,190		27,860
Loans and loans held for sale	186,794		186,794		25,911
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	180,299		$ 180,299		$ 9,345
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	$ (331,400)

Securitization of Personal Wh48

Securitization of Personal Whole Loans (Details) - USD ($) $ in Millions	Sep. 28, 2017	Jun. 22, 2017	Sep. 30, 2017
Majority-owned affiliate
Servicing Assets at Fair Value [Line Items]
Ownership percentage by parent			56.00%
Ownership percentage by noncontrolling owners			44.00%
Personal whole loans
Servicing Assets at Fair Value [Line Items]
Loans purchased and simultaneously transferred, principal amount outstanding		$ 336.6	$ 642.1
Securities issued in securitization transaction, aggregate value	$ 350.8
Gain (loss) on sale under securitization transaction, pre-tax	2.6	1.7
Servicing fees	1.3	1.1
Servicing reserve		6.7
Off-balance sheet loans, principal amount outstanding, past due			15.2
Senior securities and subordinated residual certificates
Servicing Assets at Fair Value [Line Items]
Securities issued in securitization transaction, aggregate value	$ 353.7	$ 350.7
Senior securities
Servicing Assets at Fair Value [Line Items]
Percentage of securities sold under securitization		95.00%
Proceeds from sale of loans by consolidated VIE, net of underwriting fees and costs		$ 260.8
Fair value of securities held			16.2
Senior securities | Majority-owned affiliate
Servicing Assets at Fair Value [Line Items]
Fair value of securities held			11.7
Subordinated residual certificates
Servicing Assets at Fair Value [Line Items]
Percentage of securities above required percentage, retained under securitization	2.70%
Percentage of securities distributed under securitization	72.60%	95.00%
Fair value of securities held			2.4
Subordinated residual certificates | Majority-owned affiliate
Servicing Assets at Fair Value [Line Items]
Fair value of securities held			$ 3
Whole Loan Investors | Personal whole loans
Servicing Assets at Fair Value [Line Items]
Securities issued in securitization transaction, aggregate value	$ 252.7
Whole Loan Investors | Senior securities
Servicing Assets at Fair Value [Line Items]
Proceeds from sale of loans by consolidated VIE, net of underwriting fees and costs	$ 6.3
Depositor | Senior securities
Servicing Assets at Fair Value [Line Items]
Percentage of securities sold under securitization	95.00%
Proceeds from sale of loans by consolidated VIE, net of underwriting fees and costs	$ 302.3
Loans Invested in by Company | Personal whole loans
Servicing Assets at Fair Value [Line Items]
Securities issued in securitization transaction, aggregate value	$ 98.1

Securitization of Personal Wh49

Securitization of Personal Whole Loans Fair Value Sensitivity (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2017USD ($)
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	$ 16,200
Asset-backed securities | 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	$ 27,883
Expected weighted-average life (in years)	1 year 1 month 6 days
Discount rates, 100 basis point increase	$ (279)
Discount rates, 200 basis point increase	(551)
Expected credit loss on rates on underlying loans, 10% adverse change	0
Expected credit loss on rates on underlying loans, 20% adverse change	0
Expected prepayment rates, 10% adverse change	0
Expected prepayment rates, 20% adverse change	(1)
Asset-backed securities | 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	$ 5,402
Expected weighted-average life (in years)	1 year 6 months 6 days
Discount rates, 100 basis point increase	$ 72
Discount rates, 200 basis point increase	(143)
Expected credit loss on rates on underlying loans, 10% adverse change	(637)
Expected credit loss on rates on underlying loans, 20% adverse change	(1,262)
Expected prepayment rates, 10% adverse change	(114)
Expected prepayment rates, 20% adverse change	$ (250)

Fair Value of Assets and Liab50

Fair Value of Assets and Liabilities - Loans, Loan Servicing Rights, Related Notes and Certificates (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 3,413,893	$ 4,311,984
Loans held for sale	265,925	9,048
Fair Value	219,285	287,137
Servicing assets	29,621	21,398
Total assets	3,928,724	4,629,567
Notes and certificates	3,515,578	4,320,895
Servicing liabilities	1,231	2,846
Loan trailing fee liability	7,774	4,913
Total liabilities	3,524,583	4,328,654
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	123,153	181,223
Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	25,920	27,501
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	15,451	25,364
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	9,981	20,164
U.S. agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,001	19,623
U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	2,492	2,496
Asset-backed securities related to Company- sponsored securitization transactions (1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	33,285
Other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	4,002	10,766
Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Loans held for sale	0	0
Fair Value	0	0
Servicing assets	0	0
Total assets	0	0
Notes and certificates	0	0
Servicing liabilities	0	0
Loan trailing fee liability	0	0
Total liabilities	0	0
Level 1 Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 1 Inputs | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 1 Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 1 Inputs | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 1 Inputs | U.S. agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 1 Inputs | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 1 Inputs | Asset-backed securities related to Company- sponsored securitization transactions (1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0
Level 1 Inputs | Other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Loans held for sale	0	0
Fair Value	213,883	287,137
Servicing assets	0	0
Total assets	213,883	287,137
Notes and certificates	0	0
Servicing liabilities	0	0
Loan trailing fee liability	0	0
Total liabilities	0	0
Level 2 Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	123,153	181,223
Level 2 Inputs | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	25,920	27,501
Level 2 Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	15,451	25,364
Level 2 Inputs | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	9,981	20,164
Level 2 Inputs | U.S. agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,001	19,623
Level 2 Inputs | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	2,492	2,496
Level 2 Inputs | Asset-backed securities related to Company- sponsored securitization transactions (1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	27,883
Level 2 Inputs | Other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	4,002	10,766
Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	3,413,893	4,311,984
Loans held for sale	265,925	9,048
Fair Value	5,402	0
Servicing assets	29,621	21,398
Total assets	3,714,841	4,342,430
Notes and certificates	3,515,578	4,320,895
Servicing liabilities	1,231	2,846
Loan trailing fee liability	7,774	4,913
Total liabilities	3,524,583	4,328,654
Level 3 Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 3 Inputs | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 3 Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 3 Inputs | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 3 Inputs | U.S. agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 3 Inputs | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 3 Inputs | Asset-backed securities related to Company- sponsored securitization transactions (1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	5,402
Level 3 Inputs | Other securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value	$ 0	$ 0

Fair Value of Assets and Liab51

Fair Value of Assets and Liabilities - Quantitative Information about Significant Unobservable Inputs Used for Fair Value Measurements (Detail) - Level 3 Inputs	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Minimum | Servicing Assets/Liabilities
Fair Value Inputs [Abstract]
Discount rates	1.90%	3.40%
Net cumulative expected loss rates	0.80%	0.30%
Cumulative prepayment rates	11.30%	8.00%
Total market servicing rates (percent per annum on outstanding principal balance)	0.65%	0.63%
Maximum | Servicing Assets/Liabilities
Fair Value Inputs [Abstract]
Discount rates	16.50%	15.10%
Net cumulative expected loss rates	41.40%	33.90%
Cumulative prepayment rates	43.60%	42.70%
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	8.70%	7.80%
Net cumulative expected loss rates	12.00%	12.80%
Cumulative prepayment rates	31.80%	29.30%
Total market servicing rates (percent per annum on outstanding principal balance)	0.65%	0.63%
Loans, Loans Held for Sale, Notes and Certificates | Minimum
Fair Value Inputs [Abstract]
Discount rates	1.80%	1.20%
Net cumulative expected loss rates	0.80%	0.30%
Cumulative prepayment rates	11.30%	8.00%
Loans, Loans Held for Sale, Notes and Certificates | Maximum
Fair Value Inputs [Abstract]
Discount rates	17.20%	16.60%
Net cumulative expected loss rates	41.40%	33.90%
Cumulative prepayment rates	43.60%	42.70%
Loans, Loans Held for Sale, Notes and Certificates | Weighted- Average
Fair Value Inputs [Abstract]
Discount rates	8.30%	7.20%
Net cumulative expected loss rates	13.50%	14.60%
Cumulative prepayment rates	30.90%	30.70%
Asset-Backed Securities Related to Consolidated VIE | Minimum
Fair Value Inputs [Abstract]
Discount rates	15.00%
Net cumulative expected loss rates	12.80%
Cumulative prepayment rates	29.60%
Asset-Backed Securities Related to Consolidated VIE | Maximum
Fair Value Inputs [Abstract]
Discount rates	15.00%
Net cumulative expected loss rates	20.30%
Cumulative prepayment rates	29.60%
Asset-Backed Securities Related to Consolidated VIE | Weighted- Average
Fair Value Inputs [Abstract]
Discount rates	15.00%
Net cumulative expected loss rates	17.10%
Cumulative prepayment rates	29.60%
Loan Trailing Fee Liability | Minimum
Fair Value Inputs [Abstract]
Discount rates	1.90%	3.40%
Net cumulative expected loss rates	0.80%	0.30%
Cumulative prepayment rates	11.30%	8.00%
Loan Trailing Fee Liability | Maximum
Fair Value Inputs [Abstract]
Discount rates	16.50%	15.00%
Net cumulative expected loss rates	41.40%	33.90%
Cumulative prepayment rates	43.60%	42.70%
Loan Trailing Fee Liability | Weighted- Average
Fair Value Inputs [Abstract]
Discount rates	8.80%	7.70%
Net cumulative expected loss rates	12.70%	13.50%
Cumulative prepayment rates	31.40%	28.30%

Fair Value of Assets and Liab52

Fair Value of Assets and Liabilities - Additional Information about Loans, Notes and Certificates Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Loans Notes And Certificates
Loans
Outstanding Principal Balance, Beginning	$ 4,041,550	$ 4,748,631	$ 4,565,653	$ 4,681,671
Valuation Adjustment, Beginning	(244,551)	(340,870)	(253,669)	(125,590)
Fair Value, Beginning	3,796,999	4,407,761	4,311,984	4,556,081
Outstanding Principal Balance, Purchases	405,472	646,662	1,408,138	2,093,692
Valuation Adjustment, Purchases	(469)	0	(474)	0
Fair Value, Purchases	405,003	646,662	1,407,664	2,093,692
Outstanding Principal Balance, Transfers from loans to loans held for sale	(113,587)	(2,269)	(113,587)	(30,802)
Valuation Adjustment, Transfers from loans to loans held for sale	0	0	0	0
Fair Value, Transfers from loans to loans held for sale	(113,587)	(2,269)	(113,587)	(30,802)
Outstanding Principal Balance, Issuances	0	0	0	0
Valuation Adjustment, Issuances	0	0	0	0
Fair Value, Issuances	0	0	0	0
Outstanding Principal Balance, Sales	0	0	0	0
Valuation Adjustment, Sales	0	0	0	0
Fair Value, Sales	0	0	0	0
Outstanding Principal Balance, Principal payments and retirements	(597,304)	(603,452)	(1,862,767)	(1,782,603)
Valuation Adjustment, Principal payments	0	0	0	0
Fair Value, Principal payments and retirements	(597,304)	(603,452)	(1,862,767)	(1,782,603)
Outstanding Principal Balance, Charge-offs	(116,070)	(112,517)	(377,376)	(284,903)
Valuation Adjustment, Charge-offs	116,070	112,517	377,376	284,903
Fair Value, Charge-offs	0	0	0	0
Outstanding Principal Balance, Recoveries	0	0	0	0
Valuation Adjustment, Recoveries	(12,114)	(10,517)	(34,808)	(27,451)
Fair Value, Recoveries	(12,114)	(10,517)	(34,808)	(27,451)
Outstanding Principal Balance, Change in fair value recorded in earnings	0	0	0	0
Valuation Adjustment, Change in fair value recorded in earnings	(65,104)	(26,559)	(294,593)	(397,291)
Fair Value, Change in fair value recorded in earnings	(65,104)	(26,559)	(294,593)	(397,291)
Outstanding Principal Balance, Ending	3,620,061	4,677,055	3,620,061	4,677,055
Valuation Adjustment, Ending	(206,168)	(265,429)	(206,168)	(265,429)
Fair Value, Ending	3,413,893	4,411,626	3,413,893	4,411,626
Notes and Certificates
Outstanding Principal Balance, Beginning	4,048,717	4,755,846	4,572,912	4,697,169
Valuation Adjustment, Beginning	(243,135)	(339,961)	(252,017)	(125,586)
Fair value at beginning of period	3,805,582	4,415,885	4,320,895	4,571,583
Outstanding Principal Balance, Purchases	0	0	0	0
Valuation Adjustment, Purchases	0	0	0	0
Fair Value, Purchases	0	0	0	0
Outstanding Principal Balance, Transfer from Loans to Loans Held for Sale	0	0	0	0
Valuation Adjustment, Transfers from Loans to Loans Held for Sale	0	0	0	0
Fair Value, Transfers from Loans to Loans Held for Sale	0	0	0	0
Outstanding Principal Balance, Issuances	394,013	644,168	1,389,999	2,047,714
Valuation Adjustment, Issuances	0	0	0	0
Fair Value, Issuances	394,013	644,168	1,389,999	2,047,714
Outstanding Principal Balance, Sales	0	0	0	0
Valuation Adjustment, Sales	0	0	0	0
Fair Value, Sales	0	0	0	0
Outstanding Principal Balance, Principal payments and retirements	(602,051)	(604,160)	(1,863,045)	(1,776,747)
Valuation Adjustment, Principal payments and retirements	2	0	4	0
Fair Value, Principal payments and retirements	(602,049)	(604,160)	(1,863,041)	(1,776,747)
Outstanding Principal Balance, Charge-offs	(115,064)	(111,816)	(374,251)	(284,098)
Valuation Adjustment, Charge-offs	115,064	111,816	374,251	284,098
Fair Value, Charge-offs	0	0	0	0
Outstanding Principal Balance, Recoveries	0	0	0	0
Valuation Adjustment, Recoveries	(12,057)	(9,955)	(34,550)	(26,871)
Fair Value, Recoveries	(12,057)	(9,955)	(34,550)	(26,871)
Outstanding Principal Balance, Change in fair value recorded in earnings	0	0	0	0
Valuation Adjustment, Change in fair value recorded in earnings	(69,911)	(26,027)	(297,725)	(395,768)
Fair Value, Change in fair value recorded in earnings	(69,911)	(26,027)	(297,725)	(395,768)
Outstanding Principal Balance, Ending	3,725,615	4,684,038	3,725,615	4,684,038
Valuation Adjustment, Ending	(210,037)	(264,127)	(210,037)	(264,127)
Fair value at end of period	3,515,578	4,419,911	3,515,578	4,419,911
Loans Held For Sale(1)(2)
Loans
Outstanding Principal Balance, Beginning	37,287	16,627	9,345	0
Valuation Adjustment, Beginning	(956)	(217)	(297)	0
Fair Value, Beginning	36,331	16,410	9,048	0
Outstanding Principal Balance, Purchases	1,931,088	1,093,868	4,829,498	3,623,453
Valuation Adjustment, Purchases	(2,136)	0	4,287	0
Fair Value, Purchases	1,928,952	1,093,868	4,833,785	3,623,453
Outstanding Principal Balance, Transfers from loans to loans held for sale	113,587	2,269	113,587	30,802
Valuation Adjustment, Transfers from loans to loans held for sale	0	0	0	0
Fair Value, Transfers from loans to loans held for sale	113,587	2,269	113,587	30,802
Outstanding Principal Balance, Issuances	0	0	0	0
Valuation Adjustment, Issuances	0	0	0	0
Fair Value, Issuances	0	0	0	0
Outstanding Principal Balance, Sales	(1,787,527)	(1,095,716)	(4,648,913)	(3,635,330)
Valuation Adjustment, Sales	3,874	0	(1,656)	0
Fair Value, Sales	(1,783,653)	(1,095,716)	(4,650,569)	(3,635,330)
Outstanding Principal Balance, Principal payments and retirements	(16,710)	(2,143)	(25,431)	(4,020)
Valuation Adjustment, Principal payments	0	0	0	0
Fair Value, Principal payments and retirements	(16,710)	(2,143)	(25,431)	(4,020)
Outstanding Principal Balance, Charge-offs	(534)	0	(895)	0
Valuation Adjustment, Charge-offs	534	0	895	0
Fair Value, Charge-offs	0	0	0	0
Outstanding Principal Balance, Recoveries	0	0	0	0
Valuation Adjustment, Recoveries	0	0	0	0
Fair Value, Recoveries	0	0	0	0
Outstanding Principal Balance, Change in fair value recorded in earnings	0	0	0	0
Valuation Adjustment, Change in fair value recorded in earnings	(12,582)	56	(14,495)	(161)
Fair Value, Change in fair value recorded in earnings	(12,582)	56	(14,495)	(161)
Outstanding Principal Balance, Ending	277,191	14,905	277,191	14,905
Valuation Adjustment, Ending	(11,266)	(161)	(11,266)	(161)
Fair Value, Ending	265,925	14,744	265,925	14,744
Loans Invested in by Company
Loans
Outstanding Principal Balance, Beginning	57,221	35,672	27,860	3,462
Valuation Adjustment, Beginning	(2,371)	(1,126)	(1,949)	(4)
Fair Value, Beginning	54,850	34,546	25,911	3,458
Outstanding Principal Balance, Purchases	586,708	3,579	777,117	175,600
Valuation Adjustment, Purchases	(473)	0	(481)	0
Fair Value, Purchases	586,235	3,579	776,636	175,600
Outstanding Principal Balance, Sales	(429,481)	(6)	(576,065)	(135,531)
Valuation Adjustment, Sales	1,741	0	2,634	0
Fair Value, Sales	(427,740)	(6)	(573,431)	(135,531)
Outstanding Principal Balance, Principal payments and retirements	(18,720)	(4,352)	(30,703)	(8,534)
Valuation Adjustment, Principal payments	0	0	0	0
Fair Value, Principal payments and retirements	(18,720)	(4,352)	(30,703)	(8,534)
Outstanding Principal Balance, Charge-offs	(1,538)	(701)	(4,019)	(805)
Valuation Adjustment, Charge-offs	1,538	701	4,019	805
Fair Value, Charge-offs	0	0	0	0
Outstanding Principal Balance, Recoveries	0	0	0	0
Valuation Adjustment, Recoveries	(56)	(562)	(256)	(580)
Fair Value, Recoveries	(56)	(562)	(256)	(580)
Outstanding Principal Balance, Change in fair value recorded in earnings	0	0	0	0
Valuation Adjustment, Change in fair value recorded in earnings	(7,775)	(476)	(11,363)	(1,684)
Fair Value, Change in fair value recorded in earnings	(7,775)	(476)	(11,363)	(1,684)
Outstanding Principal Balance, Ending	194,190	34,192	194,190	34,192
Valuation Adjustment, Ending	(7,396)	(1,463)	(7,396)	(1,463)
Fair Value, Ending	$ 186,794	$ 32,729	$ 186,794	$ 32,729

Fair Value of Assets and Liab53

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		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Servicing Assets, Changes in fair value due to:
Fair value at beginning of period			$ 21,398
Fair value at end of period	$ 29,621		29,621
Servicing Liabilities, Changes in fair value due to:
Fair value at beginning of period			2,846
Fair value at end of period	1,231		1,231
Fair Value, Measurements, Recurring
Servicing Assets, Changes in fair value due to:
Fair value at beginning of period	25,901	$ 16,126	21,398	$ 10,250
Issuances	10,563	3,009	24,460	12,984
Changes in fair value, included in servicing fees	(6,961)	(2,429)	(16,083)	(7,092)
Other net changes included in deferred revenue	118	(451)	(154)	113
Fair value at end of period	29,621	16,255	29,621	16,255
Servicing Liabilities, Changes in fair value due to:
Fair value at beginning of period	1,711	3,412	2,846	3,973
Issuances	19	712	332	2,452
Change in fair value, included in investor fees	(499)	(727)	(1,947)	(3,028)
Other net changes included in deferred revenue	0	0	0	0
Fair value at end of period	$ 1,231	$ 3,397	$ 1,231	$ 3,397

Fair Value of Assets and Liab54

Fair Value of Assets and Liabilities - Trailing Fee Liability (Details) - Loan Trailing Fee Liability - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	$ 6,788	$ 2,324	$ 4,913	$ 0
Issuances	2,047	1,682	5,521	4,180
Cash payment of loan trailing fee	(1,184)	(395)	(3,008)	(585)
Change in fair value, included in origination and servicing	123	113	348	129
Fair value at end of period	$ 7,774	$ 3,724	$ 7,774	$ 3,724

Fair Value of Assets and Liab55

Fair Value of Assets and Liabilities - Sensitivity of Fair Value of Loans Invested in by the Company (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 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	$ 186,794	$ 25,911
Expected weighted-average life (in years)	1 year 7 months 6 days
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impact of adverse change in discount rate	$ (2,301)
Impact of adverse change in discount rate (percent)	1.00%
Impact of adverse change in credit loss rates on underlying loans	$ (3,282)
Impact of adverse change in credit loss rates on underlying loans (percent)	10.00%
Impact of adverse change in expected prepayment rates	$ (974)
Impact of adverse change in expected prepayment rates (percent)	10.00%
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impact of adverse change in discount rate	$ (4,544)
Impact of adverse change in discount rate (percent)	2.00%
Impact of adverse change in credit loss rates on underlying loans	$ (6,448)
Impact of adverse change in credit loss rates on underlying loans (percent)	20.00%
Impact of adverse change in expected prepayment rates	$ (1,886)
Impact of adverse change in expected prepayment rates (percent)	20.00%

Fair Value of Assets and Liab56

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	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
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	0.65%	0.63%
Assets, servicing rate increase by .1%	$ (7,203)	$ (5,673)
Liabilities, servicing rate increase by .1%	389	964
Assets, servicing rate decrease by .1%	7,265	5,812
Liabilities, servicing rate decrease by .1%	$ (327)	$ (825)

Fair Value of Assets and Liab57

Fair Value of Assets and Liabilities - Not Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	$ 3,928,724	$ 4,629,567
Total liabilities	3,524,583	4,328,654
Level 1 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	0	0
Total liabilities	0	0
Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	213,883	287,137
Total liabilities	0	0
Level 3 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets	3,714,841	4,342,430
Total liabilities	3,524,583	4,328,654
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	384,381	515,602
Restricted cash	182,844	177,810
Servicer reserve receivable	9,043	4,938
Deposits	855	855
Total assets	577,123	699,205
Accrued expenses and other liabilities	13,079	10,981
Accounts payable	7,503	10,889
Payables to investors	93,893	125,884
Total liabilities	114,475	147,754
Portion at Other than Fair Value Measurement | 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
Total liabilities	0	0
Portion at Other than Fair Value Measurement | Level 2 Inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	384,381	515,602
Restricted cash	182,844	177,810
Servicer reserve receivable	9,043	4,938
Deposits	855	855
Total assets	577,123	699,205
Accrued expenses and other liabilities	0	0
Accounts payable	7,503	10,889
Payables to investors	93,893	125,884
Total liabilities	101,396	136,773
Portion at Other than Fair Value Measurement | 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	13,079	10,981
Accounts payable	0	0
Payables to investors	0	0
Total liabilities	13,079	10,981
Balance at Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	384,381	515,602
Restricted cash	182,844	177,810
Servicer reserve receivable	9,043	4,938
Deposits	855	855
Total assets	577,123	699,205
Accrued expenses and other liabilities	13,079	10,981
Accounts payable	7,503	10,889
Payables to investors	93,893	125,884
Total liabilities	$ 114,475	$ 147,754

Property, Equipment and Softw58

Property, Equipment and Software, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Internally developed software	$ 108,635	$ 75,202
Leasehold improvements	24,653	22,637
Computer equipment	18,854	18,080
Purchased software	7,750	7,598
Furniture and fixtures	7,229	6,827
Construction in progress	1,897	707
Total property, equipment and software	169,018	131,051
Accumulated depreciation and amortization	(68,336)	(41,788)
Total property, equipment and software, net	100,682	89,263
Construction in Progress
Property, Plant and Equipment [Line Items]
Internally developed software	$ 12,300	$ 7,400

Property, Equipment and Softw59

Property, Equipment and Software, Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense			$ 32,405	$ 21,374
Property, Equipment and Software
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 10,300	$ 6,500	$ 29,200	$ 17,800

Other Assets (Detail)

Other Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Other Assets [Abstract]
Other assets	$ 91,379	$ 69,644
Loan servicing assets, at fair value
Other Assets [Abstract]
Other assets	29,621	21,398
Prepaid expenses
Other Assets [Abstract]
Other assets	21,084	16,960
Other investments
Other Assets [Abstract]
Other assets	10,411	10,372
Servicer reserve receivable
Other Assets [Abstract]
Other assets	9,043	4,938
Accounts receivable
Other Assets [Abstract]
Other assets	8,889	7,572
Insurance reimbursement receivable
Other Assets [Abstract]
Other assets	7,119	0
Receivable from investors
Other Assets [Abstract]
Other assets	1,394	1,566
Due from related parties
Other Assets [Abstract]
Other assets	279	476
Tenant improvement receivable
Other Assets [Abstract]
Other assets	0	3,290
Other
Other Assets [Abstract]
Other assets	$ 3,539	$ 3,072

Intangible Assets and Goodwill

Intangible Assets and Goodwill - Additional Information (Detail)	3 Months Ended					9 Months Ended
	Sep. 30, 2017USD ($)		Jun. 30, 2017USD ($)	Sep. 30, 2016USD ($)		Sep. 30, 2017USD ($)reporting_unit		Sep. 30, 2016USD ($)		Dec. 31, 2016USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets, net	$ 22,957,000					$ 22,957,000				$ 26,211,000
Amortization expense	1,000,000			$ 1,200,000		3,300,000		$ 3,600,000
Goodwill	35,633,000					$ 35,633,000				$ 35,633,000
Number of reporting units | reporting_unit						1
Goodwill impairment	$ 0	[1]	$ 0	$ 1,650,000	[1]	$ 0	[1]	$ 37,050,000	[1]
[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 Li62

Accrued Expenses and Other Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Accrued compensation	$ 26,824	$ 27,009
Accrued expenses	25,252	19,734
Deferred rent	14,533	11,638
Transaction fee refund reserve	13,728	9,098
Loan trailing fee liability, at fair value	7,774	4,913
Deferred revenue	2,531	2,556
Reimbursement payable to limited partners of LCAM private funds	2,240	2,313
Contingent liabilities	1,813	0
Loan servicing liabilities, at fair value	1,231	2,846
Payable to issuing banks	863	1,658
Credit loss coverage reserve	0	2,529
Other	1,512	1,325
Total accrued expenses and other liabilities	98,301	85,619
Accrued cash retention awards	$ 600	$ 3,000

Secured Borrowings (Details)

Secured Borrowings (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Mar. 31, 2016
Receivables [Abstract]
Repurchased near-prime loans	$ 22,300	$ 0	$ 22,274
Secured borrowings - amount originally sold to investor	$ 0	$ 0		$ 0	$ 15,100

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		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 16,106	$ 17,922	$ 54,692	$ 46,390
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	1,591	1,699	5,857	5,016
Origination and servicing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	1,049	1,013	3,819	2,722
Engineering and product development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	4,640	4,931	17,001	13,134
Other general and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	8,826	10,279	28,015	25,518
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	3,435	6,208	11,927	17,632
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	12,295	11,143	41,451	25,044
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	376	438	1,155	1,273
Stock issued related to acquisition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 0	$ 133	$ 159	$ 2,441

Employee Incentive Plans - Addi

Employee Incentive Plans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period		1 year
Vesting period	2 years
Internally Developed Software
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, capitalized amount	$ 2.2		$ 2.2	$ 7.4	$ 6.2
Minimum | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award issuance range		0.00%
Maximum | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award issuance range		200.00%
Share-based Compensation Award, Tranche One | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate	50.00%
Share-based Compensation Award, Tranche Two | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate	50.00%

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	1 Months Ended		3 Months Ended		9 Months Ended
	Aug. 31, 2016lawsuit	May 31, 2016lawsuit	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)	Sep. 30, 2016USD ($)	Nov. 08, 2017USD ($)	Jun. 22, 2017USD ($)	Dec. 31, 2016USD ($)
Commitments and Contingencies Disclosure [Abstract]
Rental expense			$ 4,000,000	$ 3,700,000	$ 11,700,000	$ 10,500,000
Minimum rent payments			4,000,000	$ 3,400,000	11,000,000	$ 8,300,000
Security deposit - cash			800,000		800,000
Security deposit - letters of credit			5,500,000		5,500,000
Operating Leases
2,017			4,081,000		4,081,000
2,018			16,389,000		16,389,000
2,019			16,626,000		16,626,000
2,020			17,557,000		17,557,000
2,021			17,844,000		17,844,000
Thereafter			46,163,000		46,163,000
Total			118,660,000		118,660,000
Subleases
2,017			75,000		75,000
2,018			310,000		310,000
2,019			39,000		39,000
2,020			0		0
2,021			0		0
Thereafter			0		0
Total			424,000		424,000
Net
2,017			4,006,000		4,006,000
2,018			16,079,000		16,079,000
2,019			16,587,000		16,587,000
2,020			17,557,000		17,557,000
2,021			17,844,000		17,844,000
Thereafter			46,163,000		46,163,000
Total			118,236,000		$ 118,236,000
Loan purchase obligation period					2 days
Contingent loan purchase commitment limit			122,300,000		$ 122,300,000				$ 32,200,000
Commitment repurchases					1,700,000
Deposit			9,000,000		9,000,000
Purchases					22,200,000
Principal balance			18,800,000		18,800,000
Fair value			17,700,000		17,700,000
Loan commitment purchases			586,700,000		$ 777,100,000
Commitments and Contingencies [Line Items]
Support agreement - period					12 months
Reimbursement					$ 13,000,000
Credit loss coverage reserve			0		0				2,529,000
Pledged and restricted to support contingent obligation			2,200,000		2,200,000				$ 3,400,000
Maximum exposure			6,000,000		6,000,000
Number of lawsuits | lawsuit	2	2
Subsequent Event
Commitments and Contingencies [Line Items]
Remaining limit of contingent loan purchase commitment							$ 0
Consumer Loan
Commitments and Contingencies [Line Items]
Loans purchased and simultaneously transferred to securitization trust			$ 642,100,000		$ 642,100,000			$ 336,600,000

Segment Reporting (Details)

Segment Reporting (Details)	9 Months Ended
	Sep. 30, 2017customerSegmentsegment
Segment Reporting Information [Line Items]
Number of operating segments | Segment	1
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

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($)	Oct. 01, 2017	Oct. 10, 2017	Sep. 30, 2017
Subsequent Event [Line Items]
Principal amount outstanding of loans underlying the redeemed Certificates			$ 424,600,000
Warehouse Credit Agreement | Revolving Credit Facility | LendingClub Warehouse LLC | Subsequent Event
Subsequent Event [Line Items]
Maximum borrowing capacity		$ 250,000,000
Amount drawn on Warehouse Credit Facility	$ 138,000,000

Related Party Transactions - Su

Related Party Transactions - Summary of Deposits and Withdrawals Made by Related Parties (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Apr. 01, 2016
Related Party Fund | Affiliated Entity
Related Party Transaction [Line Items]
Expense		$ 6,000
Related Party Fund | Servicing Fees | Affiliated Entity
Related Party Transaction [Line Items]
Income		$ 625
Related Party Fund
Related Party Transaction [Line Items]
Equity method investment			$ 10,000
Ownership	23.00%	23.00%	15.00%
Board Member | Related Party Fund
Related Party Transaction [Line Items]
Ownership	4.00%	4.00%
Related Party Fund
Related Party Transaction [Line Items]
Loans	$ 53,300