Warehouse Credit Facilities of Consolidated VIEs - Schedule of Terms of the Warehouse Credit Facilities (Details) $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($)
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
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
Facility Three
Line Of Credit Facility [Line Items]
Execution Date	Jul. 11, 2019
Maturity Date	Mar. 29, 2023
Aggregate Borrowings Limit (in thousands)	$ 100,000

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- 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.

+ Details

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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.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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- Details

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- Details

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