Balance Sheet Offsetting - Financial Instruments Derivative Assets Liabilities and Resell Agreements Net of Amount Not Offset (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Net Amount Recognized, Derivatives, Financial Assets	$ 88,337	$ 101,329
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets	(12,302)	(25,714)
Gross Amounts Not Offset, Collateral, Derivatives, Financial Assets	(69,691)	(74,157)
Net Amount, Derivatives, Financial Assets	6,344	1,458
Net Amount Recognized, Resell Agreements, Financial Assets	9,650	9,650
Gross Amounts Not Offset, Financial Instruments, Resell Agreements, Financial Assets	0	0
Gross Amounts Not Offset, Collateral, Resell Agreements, Financial Assets	(9,650)	(9,650)
Net Amount, Resell Agreements, Financial Assets	0	0
Net Amount Recognized, Total Financial Assets	97,987	110,979
Gross Amounts Not Offset, Collateral, Financial Assets	(79,341)	(83,807)
Net Amount, Financial Assets	6,344	1,458
Net Amount Recognized, Derivatives, Financial Liabilities	22,504	26,019
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Liabilities	(12,302)	(25,714)
Gross Amounts Not offset, Collateral, Derivatives, Financial Liabilities	(10,181)	(305)
Net Amount, Derivatives, Financial Liabilities	21	0
Net Amount Recognized, Repurchase Agreements, Financial Liabilities	4,525,855	4,342,941
Gross Amounts Not Offset, Financial Instruments, Repurchase Agreements, Financial Liabilities	0	0
Gross Amounts Not Offset, Collateral, Repurchase Agreements, Financial Liabilities	(4,525,855)	(4,342,941)
Net Amount, Repurchase Agreements, Financial Liabilities	0	0
Net Amount Recognized, Financial Liabilities	4,548,359	4,368,960
Gross Amounts Not Offset, Collateral, Financial Liabilities	(4,536,036)	(4,343,246)
Net Amount, Financial Liabilities	21	0
Counterparty H
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Net Amount Recognized, Derivatives, Financial Assets	35,230	36,286
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets	(907)	(10,129)
Gross Amounts Not Offset, Collateral, Derivatives, Financial Assets	(31,270)	(26,157)
Net Amount, Derivatives, Financial Assets	3,053	0
Net Amount Recognized, Derivatives, Financial Liabilities	907	10,129
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Liabilities	(907)	(10,129)
Gross Amounts Not offset, Collateral, Derivatives, Financial Liabilities	0	0
Net Amount, Derivatives, Financial Liabilities	0	0
Counterparty F
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Net Amount Recognized, Derivatives, Financial Assets	20,242	15,505
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets	(290)	(2,322)
Gross Amounts Not Offset, Collateral, Derivatives, Financial Assets	(19,495)	(11,759)
Net Amount, Derivatives, Financial Assets	457	1,424
Net Amount Recognized, Derivatives, Financial Liabilities	290	2,322
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Liabilities	(290)	(2,322)
Gross Amounts Not offset, Collateral, Derivatives, Financial Liabilities	0	0
Net Amount, Derivatives, Financial Liabilities	0	0
Counterparty B
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Net Amount Recognized, Derivatives, Financial Assets	13,619	22,338
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets	(1,184)	(4,522)
Gross Amounts Not Offset, Collateral, Derivatives, Financial Assets	(10,789)	(17,816)
Net Amount, Derivatives, Financial Assets	1,646	0
Net Amount Recognized, Derivatives, Financial Liabilities	1,184	4,522
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Liabilities	(1,184)	(4,522)
Gross Amounts Not offset, Collateral, Derivatives, Financial Liabilities	0	0
Net Amount, Derivatives, Financial Liabilities	0	0
Counterparty E
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Net Amount Recognized, Derivatives, Financial Assets	7,298	14,219
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets	(6,418)	(2,109)
Gross Amounts Not Offset, Collateral, Derivatives, Financial Assets	(220)	(12,100)
Net Amount, Derivatives, Financial Assets	660	10
Net Amount Recognized, Derivatives, Financial Liabilities	6,418	2,109
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Liabilities	(6,418)	(2,109)
Gross Amounts Not offset, Collateral, Derivatives, Financial Liabilities	0	0
Net Amount, Derivatives, Financial Liabilities	0	0
Other Counterparties [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Net Amount Recognized, Derivatives, Financial Assets	11,948	12,981
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Assets	(3,503)	(6,632)
Gross Amounts Not Offset, Collateral, Derivatives, Financial Assets	(7,917)	(6,325)
Net Amount, Derivatives, Financial Assets	528	24
Net Amount Recognized, Derivatives, Financial Liabilities	13,705	6,937
Gross Amounts Not Offset, Financial Instruments, Total Derivatives, Financial Liabilities	(3,503)	(6,632)
Gross Amounts Not offset, Collateral, Derivatives, Financial Liabilities	(10,181)	(305)
Net Amount, Derivatives, Financial Liabilities	$ 21	$ 0