Derivative Instruments (Balance Sheet Offsetting) (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Derivative Asset, Gross Asset Including Not Subject to Master Netting Arrangement		$ 61,760	$ 62,648
Derivative Asset, Amount Offset by Liabiilty		0	0
Derivative Assets	[1]	61,760	62,648
Derivative Liability, Gross Liability Including Not Subject to Master Netting Arrangement		21,248	26,963
Derivative Liability, Amount Offset by Asset		0	0
Derivative Liabilities	[1]	21,248	26,963
Derivatives subject to master netting agreements
Derivative Asset, Fair Value, Gross Asset		61,555	62,437
Derivative Asset, Amount Offset by Liabiilty		0	0
Derivative Asset, Net Amount Presented in the Balance Sheet		61,555	62,437
Derivative Asset, Not Offset, Policy Election Deduction		(11,563)	(3,780)
Derivative Asset, Fair Value of Collateral		(38,078)	(54,620)
Derivative Asset, Fair Value, Amount Offset Against Collateral		11,914	4,037
Derivative Liability, Fair Value, Gross Liability		20,814	26,848
Derivative Liability, Amount Offset by Asset		0	0
Derivative Liability, Net Amount Presented in the Balance Sheet		20,814	26,848
Derivative Liability, Not Offset, Policy Election Deduction		(11,563)	(3,780)
Derivative Liability, Fair Value of Collateral		0	0
Derivative Liability, Fair Value, Amount Offset Against Collateral		9,251	23,068
Derivatives not subject to master netting agreements
Derivative Asset, Fair Value, Gross Asset		205	211
Derivative Asset, Amount Offset by Liabiilty		0	0
Derivative Asset, Not Subject to Master Netting Arrangement		205	211
Derivative Liability, Fair Value, Gross Liability		434	115
Derivative Liability, Amount Offset by Asset		0	0
Derivative Liability, Not Subject to Master Netting Arrangement		$ 434	$ 115

[1] * The fair value of each class of derivative is shown in Note 11.