Mortgage Banking Activities, Net (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Other income, net	$ 27,528	$ 12,886	$ 21,204
Mortgage Banking Activities, Net	99,398	67,386	(13,659)
Sequoia Mortgage Banking
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Other income, net	2,010	2,873	5,431
Mortgage Banking Activities, Net	57,579	27,782	(21,282)
CoreVest Mortgage Banking
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Other income, net	21,242	18,314	39,903
Mortgage Banking Activities, Net	41,819	39,604	7,623
Residential Consumer Loans \| Sequoia Mortgage Banking
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair value of loans	39,019	42,976	(131,675)
Trading Securities \| Sequoia Mortgage Banking
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair value of loans	41,173	(159)	4,249
Risk Management Derivatives \| Sequoia Mortgage Banking
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Risk management derivatives	(24,623)	(17,908)	100,713
Risk Management Derivatives \| CoreVest Mortgage Banking
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Risk management derivatives	5,118	(914)	56,731
Residential investor term loans, at fair value \| CoreVest Mortgage Banking
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair value of loans	11,692	16,500	(91,690)
Residential investor bridge loans, at fair value \| CoreVest Mortgage Banking
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Fair value of loans	$ 3,767	$ 5,704	$ 2,679

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- Definition

The net income attributable to mortgage banking activities. This includes market valuations related to residential and commercial loans, Sequoia IOs, and mortgage banking derivatives, as well as realized gains or losses associated with mortgage loan sales.

+ References

No definition available.

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 29
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 948
-SubTopic 310
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479628/948-310-S99-1

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Amount of unrealized gain (loss) related to the fair value of price risk derivatives designated as fair value hedging instruments, as offset by the gain (loss) on the hedged item to the extent that the fair value hedge is determined to be effective.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C

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Amount of revenue and income classified as other.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 6
-Subparagraph (SX 210.12-14(Column E)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6

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-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 6
-Subparagraph (SX 210.12-14(Column E)(Footnote 4))
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-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6

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-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1

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-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (SX 210.6-07(1)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1

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