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Basis of Presentation - Intangible Assets Activity (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Finite-Lived Intangible Assets [Line Items]
Carrying value	$ 31,570
5 Arches LLC and CoreVest
Finite-Lived Intangible Assets [Line Items]
Intangible Assets at Acquisition	94,600
Accumulated amortization	(63,030)
Carrying value	$ 31,570
Weighted Average Amortization Period (in years)	6 years
5 Arches LLC and CoreVest | Borrower network
Finite-Lived Intangible Assets [Line Items]
Intangible Assets at Acquisition	$ 56,300
Accumulated amortization	(27,580)
Carrying value	$ 28,720
Weighted Average Amortization Period (in years)	7 years
5 Arches LLC and CoreVest | Broker network
Finite-Lived Intangible Assets [Line Items]
Intangible Assets at Acquisition	$ 18,100
Accumulated amortization	(16,592)
Carrying value	$ 1,508
Weighted Average Amortization Period (in years)	5 years
5 Arches LLC and CoreVest | Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Intangible Assets at Acquisition	$ 11,400
Accumulated amortization	(10,292)
Carrying value	$ 1,108
Weighted Average Amortization Period (in years)	3 years
5 Arches LLC and CoreVest | Tradenames
Finite-Lived Intangible Assets [Line Items]
Intangible Assets at Acquisition	$ 4,400
Accumulated amortization	(4,166)
Carrying value	$ 234
Weighted Average Amortization Period (in years)	3 years
5 Arches LLC and CoreVest | Developed technology
Finite-Lived Intangible Assets [Line Items]
Intangible Assets at Acquisition	$ 1,800
Accumulated amortization	(1,800)
Carrying value	$ 0
Weighted Average Amortization Period (in years)	2 years
5 Arches LLC and CoreVest | Loan administration fees on existing loan assets
Finite-Lived Intangible Assets [Line Items]
Intangible Assets at Acquisition	$ 2,600
Accumulated amortization	(2,600)
Carrying value	$ 0
Weighted Average Amortization Period (in years)	1 year

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(16))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-Publisher FASB
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147483154/926-20-50-5

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