Derivative Instruments - Schedule of Fair Value of Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	$ 46,882	$ 46,042
Derivative liabilities, at fair value	17,253	4,986
Interest Rate Risk
Derivatives, Fair Value [Line Items]
Derivative liabilities, at fair value		4,021
Interest Rate Risk \| Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value		1,389
Derivative liabilities, at fair value	16,870
Interest Rate Risk \| Swaptions
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	18
Derivative liabilities, at fair value	20
Currency Risk \| Forwards
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	6,261
Derivative liabilities, at fair value		935
Credit Default Swaps \| Credit Risk
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	40,603	44,653
Derivative liabilities, at fair value	363	30
Series I
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	7,333	8,924
Derivative liabilities, at fair value	2,699	966
Series I \| Interest Rate Risk
Derivatives, Fair Value [Line Items]
Derivative liabilities, at fair value		779
Series I \| Interest Rate Risk \| Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value		269
Derivative liabilities, at fair value	2,639
Series I \| Interest Rate Risk \| Swaptions
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	3
Derivative liabilities, at fair value	3
Series I \| Currency Risk \| Forwards
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	979
Derivative liabilities, at fair value		181
Series I \| Credit Default Swaps \| Credit Risk
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	6,351	8,655
Derivative liabilities, at fair value	57	6
Series II
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	39,549	37,118
Derivative liabilities, at fair value	14,554	4,020
Series II \| Interest Rate Risk
Derivatives, Fair Value [Line Items]
Derivative liabilities, at fair value		3,242
Series II \| Interest Rate Risk \| Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value		1,120
Derivative liabilities, at fair value	14,231
Series II \| Interest Rate Risk \| Swaptions
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	15
Derivative liabilities, at fair value	17
Series II \| Currency Risk \| Forwards
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	5,282
Derivative liabilities, at fair value		754
Series II \| Credit Default Swaps \| Credit Risk
Derivatives, Fair Value [Line Items]
Derivative assets, at fair value	34,252	35,998
Derivative liabilities, at fair value	$ 306	$ 24