Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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- Definition

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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- Definition

Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt.

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- Definition

Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.

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Debt (Details) - USD ($)	9 Months Ended
Debt (Details) - USD ($)	Sep. 30, 2018	Jun. 29, 2018	Dec. 31, 2017	Dec. 17, 2015
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 120,000,000
Debt outstanding under credit facility	$ 95,000,000		$ 0.0
Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Unused commitment fee (percent)	0.25%
Minimum \| Revolving Credit Facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Borrowings interest rate spread (percent)	1.75%
Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Unused commitment fee (percent)	0.375%
Maximum \| Revolving Credit Facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Borrowings interest rate spread (percent)	2.00%
Warehouse Credit Facility I \| LendingClub Warehouse I LLC \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 250,000,000
Warehouse Credit Facility II \| LendingClub Warehouse II LLC \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 200,000,000
Warehouse Credit Facility III \| LendingClub Warehouse III LLC \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 29,567,000
Warehouse Credit Facilities \| Minimum \| Revolving Credit Facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Borrowings interest rate spread (percent)	1.85%
Warehouse Credit Facilities \| Maximum \| Revolving Credit Facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Borrowings interest rate spread (percent)	2.75%
Warehouse Credit Facilities I and II \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt outstanding under credit facility	$ 185,800,000		32,100,000
Restricted cash	$ 20,000,000		4,100,000
Warehouse Credit Facilities I and II \| Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Unused commitment fee (percent)	0.50%
Warehouse Credit Facilities I and II \| Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Unused commitment fee (percent)	1.25%
Loans Held For Sale \| Warehouse Credit Facilities I and II \| Revolving Credit Facility
Debt Instrument [Line Items]
Loans pledged as collateral	$ 318,400,000		$ 62,100,000
Credit Facilities and Securities Sold under Repurchase Agreements
Debt Instrument [Line Items]
Aggregate debt outstanding under repurchase transactions	24,600,000
Securitized asset-backed senior securities
Debt Instrument [Line Items]
Securities pledged as collateral at fair value	$ 24,700,000