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Basis of Presentation - Intangible Assets – Activity (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items] |  |
Intangible Assets at Acquisition | $ 45,246 |
Carrying value | 45,246 |
5 Arches LLC and CoreVest |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible Assets at Acquisition | 45,246 | $ 81,300
Accumulated amortization | (36,054) |
Carrying value | $ 45,246 | 81,300
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 | $ 32,628 | 45,300
Accumulated amortization | (12,672) |
Carrying value | $ 32,628 | 45,300
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 | $ 8,748 | 18,100
Accumulated amortization | (9,352) |
Carrying value | $ 8,748 | 18,100
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 | $ 2,694 | 9,500
Accumulated amortization | (6,806) |
Carrying value | $ 2,694 | 9,500
Weighted Average Amortization Period (in years) | 3 years |
5 Arches LLC and CoreVest | Tradenames |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible Assets at Acquisition | $ 1,139 | 4,000
Accumulated amortization | (2,861) |
Carrying value | $ 1,139 | 4,000
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 | $ 37 | 1,800
Accumulated amortization | (1,763) |
Carrying value | $ 37 | 1,800
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 | $ 0 | 2,600
Accumulated amortization | (2,600) |
Carrying value | $ 0 | $ 2,600
Weighted Average Amortization Period (in years) | 1 year |

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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