Warehouse Credit Facilities of Consolidated VIEs - Schedule of Terms of the Warehouse Credit Facilities (Details) $ in Thousands	6 Months Ended
Jun. 30, 2022 USD ($)
Line Of Credit Facility [Line Items]
Restricted Cash as of June 30, 2022 (in thousands)	$ 153,741
Facility One
Line Of Credit Facility [Line Items]
Execution Date	May 30, 2012
Maturity Date	Oct. 20, 2023
Aggregate Borrowings Limit (in thousands)	$ 150,000
Aggregate Principal Balance of Finance Receivables Pledged As Collateral	125,980
Outstanding Balance as of June 30, 2022 (in thousands)	59,200
Restricted Cash as of June 30, 2022 (in thousands)	$ 4,332
Facility Two
Line Of Credit Facility [Line Items]
Execution Date	Nov. 19, 2013
Maturity Date	May 19, 2023
Aggregate Borrowings Limit (in thousands)	$ 100,000
Aggregate Principal Balance of Finance Receivables Pledged As Collateral	28,307
Outstanding Balance as of June 30, 2022 (in thousands)	21,122
Restricted Cash as of June 30, 2022 (in thousands)	$ 1,413
Facility Three
Line Of Credit Facility [Line Items]
Execution Date	Jul. 11, 2019
Maturity Date	May 24, 2024
Aggregate Borrowings Limit (in thousands)	$ 150,000
Aggregate Principal Balance of Finance Receivables Pledged As Collateral	165,979
Outstanding Balance as of June 30, 2022 (in thousands)	130,255
Restricted Cash as of June 30, 2022 (in thousands)	$ 7,287

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in YYYY-MM-DD format.

+ References

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- Definition

Date the credit facility first became available, in YYYY-MM-DD format.

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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

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- 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.

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- Definition

Amount of cash restricted as to withdrawal or usage, classified as current. 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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=123431023&loc=SL98516268-108586

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Aggregate principal balance of finance receivables pledged as collateral.

+ References

No definition available.

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