Represents the number of performing mortgage loans.

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Represents amount of unpaid principal balance of mortgage loans.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of warrants or rights outstanding.

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Amount of loss contingency liability.

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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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No definition available.

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

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The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Commitments and Contingencies - Narrative (Details)	3 Months Ended		12 Months Ended
Commitments and Contingencies - Narrative (Details)	Mar. 31, 2022 USD ($) loan $ / shares shares	Jun. 30, 2020 USD ($) $ / shares shares	Dec. 31, 2021 $ / shares shares	Mar. 31, 2021 shares
Mortgage Loans on Real Estate
Proceeds from issuance of private placement		$ 125,000,000
Warrant term		5 years
Class of warrant or right, outstanding (in shares) \| shares	6,500,000	6,500,000		6,500,000
Investment warrants, exercise price (in dollars per share) \| $ / shares		$ 10.00
Loss contingency	$ 0
Put option
Mortgage Loans on Real Estate
Present value of put liability		$ 50,700,000
Put option \| Warrant
Mortgage Loans on Real Estate
Present value of put liability	$ 26,900,000
Series A Preferred Stock
Mortgage Loans on Real Estate
Preferred stock, shares issued (in shares) \| shares	2,307,400	2,307,400	2,307,400
Preferred stock, fixed-to-floating rate cumulative redeemable	7.25%	7.25%	7.25%
Preferred stock, liquidation preference per share (in dollars per share) \| $ / shares	$ 25.00		$ 25.00
Preferred stock - Series B shares
Mortgage Loans on Real Estate
Preferred stock, shares issued (in shares) \| shares	2,892,600	2,892,600	2,892,600
Preferred stock, fixed-to-floating rate cumulative redeemable	5.00%	5.00%	5.00%
Preferred stock, liquidation preference per share (in dollars per share) \| $ / shares	$ 25.00		$ 25.00
Re-performing loans \| Purchase commitment \| One-to-four family residences
Mortgage Loans on Real Estate
Number of mortgage loans on real estate \| loan	58
Aggregate unpaid principal balance of mortgage loans on real estate	$ 11,300,000