Related Party Transactions - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
ARMOUR management fees
Related Party Transaction [Line Items]
Amounts of transaction	$ 13,039	$ 11,703	$ 37,793	$ 33,532
Less management fees waived
Related Party Transaction [Line Items]
Amounts of transaction	0	(1,650)	0	(4,950)
Total management fee expense
Related Party Transaction [Line Items]
Amounts of transaction	$ 13,039	$ 10,053	$ 37,793	$ 28,582

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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+ Details