Derivative Instruments - Fair Value of Reported Derivatives (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023
Derivatives, Fair Value [Line Items]
Notional Amount Outstanding	$ 2,000,000	$ 2,500,000
Derivative assets, at fair value	97	0
Derivative liabilities, at fair value	0	0
Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Notional Amount Outstanding	1,500,000	1,000,000
Derivative assets, at fair value	0	0
Derivative liabilities, at fair value	0	0
Swaptions
Derivatives, Fair Value [Line Items]
Notional Amount Outstanding	500,000	1,500,000	$ 1,000,000
Derivative assets, at fair value	97	0
Derivative liabilities, at fair value	0	$ 0
Future
Derivatives, Fair Value [Line Items]
Notional Amount Outstanding	0
Derivative assets, at fair value	0
Derivative liabilities, at fair value	$ 0