Revenues Revenue Recognition by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Noninterest Income	$ (9,407)	$ 63,182	$ 282,370
Fiduciary and Trust [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	92,569	82,502	84,122
Deposit Account [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	51,642	49,045	62,310
Operating Segments [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	199,518	186,560	201,953
Noninterest Income, Outside of Scope of Topic 606	(208,925)	(123,377)	80,417
Noninterest Income	(9,407)	63,182	282,370
Operating Segments [Member] | Fiduciary and Trust [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	92,569	82,502	84,122
Operating Segments [Member] | Deposit Account [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	51,642	49,045	62,310
Operating Segments [Member] | Credit and Debit Card [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	47,027	45,121	44,132
Operating Segments [Member] | Financial Service, Other [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	8,280	9,891	11,389
Operating Segments [Member] | Corporate and Commercial Specialty [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	13,594	12,498	15,317
Noninterest Income, Outside of Scope of Topic 606	39,841	39,407	43,621
Noninterest Income	53,435	51,905	58,938
Operating Segments [Member] | Corporate and Commercial Specialty [Member] | Fiduciary and Trust [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	0	0	0
Operating Segments [Member] | Corporate and Commercial Specialty [Member] | Deposit Account [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	11,627	10,191	12,479
Operating Segments [Member] | Corporate and Commercial Specialty [Member] | Credit and Debit Card [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	1,652	1,348	1,104
Operating Segments [Member] | Corporate and Commercial Specialty [Member] | Financial Service, Other [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	315	959	1,734
Operating Segments [Member] | Community, Consumer and Business [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	185,936	173,246	185,151
Noninterest Income, Outside of Scope of Topic 606	12,549	20,702	20,510
Noninterest Income	198,485	193,948	205,660
Operating Segments [Member] | Community, Consumer and Business [Member] | Fiduciary and Trust [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	92,569	82,502	84,122
Operating Segments [Member] | Community, Consumer and Business [Member] | Deposit Account [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	39,977	38,831	49,813
Operating Segments [Member] | Community, Consumer and Business [Member] | Credit and Debit Card [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	45,287	43,745	42,917
Operating Segments [Member] | Community, Consumer and Business [Member] | Financial Service, Other [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	8,103	8,168	8,299
Operating Segments [Member] | Risk Management and Shared Services [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	(12)	815	1,485
Noninterest Income, Outside of Scope of Topic 606	(261,315)	(183,486)	16,286
Noninterest Income	(261,327)	(182,671)	17,772
Operating Segments [Member] | Risk Management and Shared Services [Member] | Fiduciary and Trust [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	0	0	0
Operating Segments [Member] | Risk Management and Shared Services [Member] | Deposit Account [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	38	23	18
Operating Segments [Member] | Risk Management and Shared Services [Member] | Credit and Debit Card [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	88	28	111
Operating Segments [Member] | Risk Management and Shared Services [Member] | Financial Service, Other [Member]
Disaggregation of Revenue [Line Items]
Noninterest Income In Scope of Topic 606	$ (138)	$ 764	$ 1,356