Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Statement of Comprehensive Income [Abstract]
Net Income (Loss) Attributable to Parent	$ 111,230	$ 115,573	$ 212,916	$ 196,742
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax [Abstract]
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax	21,317	(11,126)	53,149	(41,014)
Amortization of Net Unrealized Losses on Available-for-Sale Securities Transfered to Held-to-maturity Securities	2,059	2,122	3,986	4,182
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax	0	0	0	197
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax	(5,830)	2,253	(14,251)	9,138
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax, Total	17,545	(6,751)	42,884	(27,498)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	1,264	(6,787)	8,532	(26,248)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax	1,437	4,769	2,555	9,592
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	650	(503)	2,668	(2,192)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	3,352	(2,522)	13,755	(18,848)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax	(63)	(73)	(126)	(144)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax	0	0	4,770	0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax	(4)	(7)	(8)	(14)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	17	20	(1,157)	(1,614)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax, Total	(50)	(60)	3,480	(1,772)
Other Comprehensive Income (Loss), Net of Tax, Total	20,847	(9,333)	60,119	(48,117)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 132,076	$ 106,241	$ 273,035	$ 148,625