Fee Waiver Adjustment, Every Month Thereafter

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Fee Waiver Adjustment, First Quarter

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Joint Venture, Required Annual Reduction in Share of Gross Financing Profit

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Number of Loan Agreements with Related Party

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Related Party Transaction, Management Fee Reduction

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Related Party Transactions, Maximum Lending Capacity

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

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the aggregate value of each identified investment accounted for under the equity method of accounting based on the quoted market price for those investments in common stock for which a quoted market price is available.

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For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

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Amount of cash inflow from related parties which reduce the amount of loans and leases receivable due from related parties.

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The cash outflow to reacquire common stock during the period.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.

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Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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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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Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Related Party Transactions - Additional Information (Details)			1 Months Ended	3 Months Ended			9 Months Ended		12 Months Ended
	Feb. 22, 2021 USD ($)	Jan. 13, 2021	Mar. 31, 2017 USD ($)	Sep. 30, 2022 USD ($) loan shares	Sep. 30, 2021 USD ($)	Jun. 30, 2020	Sep. 30, 2022 USD ($) loan shares	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) shares	Oct. 25, 2021 USD ($)	Jul. 01, 2021 USD ($)	Apr. 20, 2021 USD ($)	Apr. 01, 2021 USD ($)	Mar. 31, 2021 USD ($)
Related Party Transaction [Line Items]
Fee waiver adjustment, first quarter												$ 2,100,000		$ 2,400,000
Fee waiver adjustment, every month thereafter										$ 650,000	$ 700,000		$ 800,000
Management fees				$ 8,534,000	$ 7,899,000		$ 24,971,000	$ 23,055,000
Number of subordinated loan agreements \| loan				1			1
Payments of stock issuance costs							$ 53,000
Common stock repurchased (in shares) \| shares							0
Common stock repurchased							$ 1,544,000	0
2021 Common stock ATM Sales Agreement \| Series B Preferred Stock
Related Party Transaction [Line Items]
Payments of stock issuance costs							$ 3,216,000
Common Stock
Related Party Transaction [Line Items]
Common stock repurchased (in shares) \| shares				780,000			1,028,000
Common stock repurchased							$ 5,410,000
Common Stock \| 2021 Common stock ATM Sales Agreement
Related Party Transaction [Line Items]
Number of shares issued in transaction (in shares) \| shares							39,319,000		17,915,000
BUCKLER Securities, LLC \| 2021 Common stock ATM Sales Agreement \| Series B Preferred Stock
Related Party Transaction [Line Items]
Payments of stock issuance costs							$ 1,727,000
BUCKLER Securities, LLC \| Common Stock \| 2021 Common stock ATM Sales Agreement
Related Party Transaction [Line Items]
Number of shares issued in transaction (in shares) \| shares							21,805,000
Issuance of Series C Preferred stock, net of expenses							$ 171,311,000
ACM
Related Party Transaction [Line Items]
Management fee reduction (as a percent)		40.00%				40.00%
ACM \| Restricted Stock Units (RSUs)
Related Party Transaction [Line Items]
Award vesting period							5 years
Corporate Joint Venture \| BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Payments to acquire equity method investments			$ 352,000
Percentage of voting interests acquired			10.00%
Value of equity method investment				$ 338,000			$ 338,000		$ 606,000
Proceeds from divestiture of interest in joint venture				0	0		0	0
Required annual reduction in share of gross financing profit				306,000			$ 306,000
Armour Management Agreement \| ACM
Related Party Transaction [Line Items]
Automatic renewal period of management agreement							5 years
Other Expense \| ACM
Related Party Transaction [Line Items]
Management fees				194,000	92,000		$ 431,000	130,000
Stock Based Compensation Expense \| ACM
Related Party Transaction [Line Items]
Management fees				135,000	176,000		437,000	584,000
Required Regulatory Capital Requirement of Related Party \| Corporate Joint Venture \| BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Loans receivable, related parties				105,000,000			$ 105,000,000
Related party transaction, rate							0.00%
Loans and leases receivable, related parties, proceeds				$ 521,000	$ 20,000		$ 697,000	$ 52,000
Uncommitted Revolving Credit Facility and Security Agreement \| Corporate Joint Venture
Related Party Transaction [Line Items]
Maximum lending capacity	$ 50,000,000
Basis spread	2.00%