Financial Derivatives (Credit Default Swaps) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Derivative [Line Items]
Financial derivatives–assets, at fair value-	$ 160,043	$ 18,894
Financial derivatives–liabilities, at fair value-	(50,418)	(12,298)
Fair Value	(109,625)	(6,596)
Credit default swaps on asset-backed indices
Derivative [Line Items]
Financial derivatives–assets, at fair value-	2,250	1,751
Financial derivatives–liabilities, at fair value-	(32)	(39)
Credit default swaps on asset-backed indices | Financial Derivatives - Assets | Short
Derivative [Line Items]
Notional Amount	(56,345)	(13,947)
Financial derivatives–assets, at fair value-	2,247	1,744
Credit default swaps on asset-backed securities
Derivative [Line Items]
Financial derivatives–assets, at fair value-	77	303
Credit default swaps on asset-backed securities | Financial Derivatives - Assets | Short
Derivative [Line Items]
Notional Amount	(220)	(910)
Financial derivatives–assets, at fair value-	77	303
Credit default swaps
Derivative [Line Items]
Notional Amount	(248,656)	(37,190)
Fair Value	(3,052)	(202)
Credit default swaps on corporate bond indices
Derivative [Line Items]
Financial derivatives–assets, at fair value-	930	156
Financial derivatives–liabilities, at fair value-	(17)	(1,870)
Credit default swaps on corporate bond indices | Financial Derivatives - Assets | Short
Derivative [Line Items]
Notional Amount	(134,382)	0
Financial derivatives–assets, at fair value-	$ 920	$ 0
Remaining Years to Maturity	5 years 3 days	0 days
Credit default swaps on corporate bonds
Derivative [Line Items]
Financial derivatives–assets, at fair value-	$ 95	$ 0
Financial derivatives–liabilities, at fair value-	(251)	(99)
Credit default swaps on corporate bonds | Financial Derivatives - Assets | Short
Derivative [Line Items]
Notional Amount	(6,000)	0
Financial derivatives–assets, at fair value-	$ 95	$ 0
Remaining Years to Maturity	4 years 8 months 19 days	0 days