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Number of Loan Agreements with Related Party

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Related Party Transaction, Management Agreement, Annual Management Fee

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Related Party Transaction, Management Agreement, Automatic Renewal Period

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Related Party Transaction, Management Agreement, Term

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For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

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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 carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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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 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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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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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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Related Party Transactions - Additional Information (Details)	1 Months Ended	2 Months Ended	12 Months Ended			14 Months Ended
	Mar. 31, 2017 USD ($)	Feb. 19, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Feb. 18, 2020 USD ($)	Mar. 18, 2019 loan	Mar. 17, 2019 loan
Related Party Transaction [Line Items]
Management fees			$ 29,571,000	$ 27,246,000	$ 26,582,000
Due from related parties			105,000,000	105,000,000
Number of loans \| loan							1	3
ARRM
Related Party Transaction [Line Items]
Annual management fee			$ 1
Period of written notice of termination			180 days
Management fees			$ 29,513,000	27,190,000	26,518,000
Due from related parties			$ 552,000
ARRM \| Restricted Stock Units (RSUs)
Related Party Transaction [Line Items]
Award vesting period			5 years
ARRM \| Armour Management Agreement
Related Party Transaction [Line Items]
Automatic renewal period of management agreement			5 years
ARRM \| Javelin Management Agreement
Related Party Transaction [Line Items]
Automatic renewal period of management agreement			1 year
Management agreement, term			1 year
ARRM \| Other Expense
Related Party Transaction [Line Items]
Management fees			$ 114,000	206,000	764,000
ARRM \| Stock Based Compensation Expense
Related Party Transaction [Line Items]
Management fees			348,000	436,000	339,000
Javelin Mortgage Investment Corp. \| Management Fee
Related Party Transaction [Line Items]
Management fees			$ 1	1,718,000
Corporate Joint Venture \| BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Ownership percentage	10.00%
Corporate Joint Venture \| BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Payments to acquire equity method investments	$ 352,000
Ownership percentage			10.00%
Equity method investments, value			$ 381,000	113,000
Corporate Joint Venture \| BUCKLER Securities, LLC \| Subsequent Event
Related Party Transaction [Line Items]
Proceeds from divestiture of interest in joint venture		$ 258,000				$ 767,000
Required annual reduction in share of gross financing profit						$ 306,000
Corporate Joint Venture \| Required Regulatory Capital Requirement of Related Party \| BUCKLER Securities, LLC
Related Party Transaction [Line Items]
Loans receivable related parties			$ 105,000,000
Related party transaction, rate			0.00%
Related parties loans, proceeds			$ 1,886,000	$ 2,019,000	$ 280,000