Debt Instrument, Coupon Step-Up Period

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- Definition

Financing Receivable, Weighted Average Term to Maturity

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- Definition

Proceeds From Senior Bonds Sold with Step Up Feature

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- Definition

Residential Whole Loans, Aggregate Fair Value

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- Definition

Senior Bonds Outstanding, Carrying Value

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No definition available.

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- Definition

Senior Bonds Outstanding, Fair Value

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No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

Amount, before accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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- 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.

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No definition available.

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Use of Special Purpose Entities and Variable Interest Entities (Loan Securitization Transaction) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Asset-backed Securities, Securitized Loans and Receivables
Variable Interest Entity [Line Items]
Aggregate unpaid principal balance of residential whole loans sold	$ 2,756,479		$ 2,756,479	$ 2,232,561
Outstanding amount of Senior Bonds, at carrying value	1,405,685		1,405,685	645,027
Outstanding amount of Senior Bonds, at fair value	640,696		640,696	869,482
Outstanding amount of Senior Bonds, total	$ 2,046,381		$ 2,046,381	$ 1,514,509
Weighted average interest rate	1.57%		1.57%	2.11%
Weighted average contractual maturity of Senior Bonds		41 years	41 years
Cash received		$ 1,853,408	$ 2,511,087
Debt issuance cost	$ 6,800		6,800	$ 3,200
Senior notes
Variable Interest Entity [Line Items]
Cash received	805,900
Senior notes \| Asset-backed Securities, Securitized Loans and Receivables
Variable Interest Entity [Line Items]
Principal amount of Securitized debt	2,511,113		2,511,113	1,862,068
Proceeds from Senior bond sold with Step up feature			$ 445,200	568,700
Debt instrument, coupon step-up period			36 months
Senior notes \| Asset-backed Securities, Securitized Loans and Receivables \| Minimum
Variable Interest Entity [Line Items]
Debt instrument, basis spread on variable rate			1.00%
Senior notes \| Asset-backed Securities, Securitized Loans and Receivables \| Maximum
Variable Interest Entity [Line Items]
Debt instrument, basis spread on variable rate			3.00%
Senior Support Certificates \| Asset-backed Securities, Securitized Loans and Receivables
Variable Interest Entity [Line Items]
Principal amount of Securitized debt	$ 215,157		$ 215,157	$ 268,548