Financings - Collateral at Risk Under its Repurchase Agreements Greater than 10% (Details) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($)
Credit Suisse AG, Cayman Islands Branch
Amounts of collateral at risk under its repurchase agreements greater than 10% of the Company's equity with any counterparty
Amount of Collateral at Risk, at fair value	$ 84,150
Weighted Average Remaining Maturity (days)	280 days
Percentage of Stockholders' Equity	43.60%
Citigroup Global Markets Inc.
Amounts of collateral at risk under its repurchase agreements greater than 10% of the Company's equity with any counterparty
Amount of Collateral at Risk, at fair value	$ 78,544
Weighted Average Remaining Maturity (days)	125 days
Percentage of Stockholders' Equity	40.70%

The amount at risk under repurchase agreements is defined as the excess of carrying amount (or market value, if higher than the carrying amount or if there is no carrying amount) of the securities or other assets sold under agreement to repurchase, including accrued interest plus any cash or other assets on deposit to secure the repurchase obligation, over the amount of the repurchase liability (adjusted for accrued interest).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(iii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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Weighted average maturity (weighted by amount of the agreement) of repurchase agreements with the counterparty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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