Fair Value, Option, Assets, Aggregate Carrying Amount During Period

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Includes income (loss) from mortgage banking servicing real estate mortgages, net of subservicing costs, and market valuation changes of MSRs held at fair value.

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Number Of Investments Made

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Number Of Partnerships Consolidated

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Servicing Asset At Fair Value, Unpaid Principal Balance On Underlying Loans

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Amount of assets pledged to secure a debt instrument.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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- Definition

Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

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Sum of the carrying amounts as of the balance sheet date of all investments.

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Amount of revenue and income classified as other.

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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.

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Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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Amount of unrealized gain (loss) on investment.

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Other Investments - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) partnership investment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2018 partnership
Investment [Line Items]
Number of partnerships consolidated \| partnership	2			2
Collateral amounts	$ 1,379,856	$ 1,306,932
Investment fair value changes, net	(175,558)	128,049	$ (588,438)
Other income, net	21,204	12,018	4,188
Interest income	707,854	574,926	571,916
Mortgage servicing rights income (loss), net	14,879	2,380	(9,694)
Strategic investments
Investment [Line Items]
Investment fair value changes, net	13,000	0
Other income, net	900	800
MSRs
Investment [Line Items]
Servicing asset, fair value	25,421	12,438
Associated Principal	$ 2,190,000	2,120,000
RWT Horizons \| Strategic investments
Investment [Line Items]
Number of investments made \| investment	29
Investments	$ 25,000
Churchill Finance \| Strategic investments
Investment [Line Items]
Number of investments made \| investment	5
Servicer advance financing
Investment [Line Items]
Collateral amounts	$ 240,000
Income (loss) on investments	20,000	12,000	11,000
Investment fair value changes, net	(11,000)	(1,000)	(9,000)
Held-for sale residential loans
Investment [Line Items]
Servicing asset, fair value	269,259	350,923
Servicing asset, unpaid principal balance on underlying loan	11,340,000
Excess MSRs
Investment [Line Items]
Servicing asset, fair value	39,035	44,231
Investment fair value changes, net	(5,000)	(8,000)	(8,000)
Interest income	16,000	$ 13,000	$ 12,000
Fair value option elected aggregate carrying amount, asset	$ 5,000