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Loans and the Allowance for Credit Losses - Summary of Aging Analysis of Portfolio Loans Restructured (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	$ 18,673,748	$ 12,656,429
Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	135,998		$ 40,812
Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,020,929	821,110
Home Equity [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,483		1,263
Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,781,728	1,787,277
Commercial and Industrial [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	12,782		8,572
Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	10,501,846	7,326,681
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,779,108	1,352,083
Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	25,050
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	8,722,738	5,974,598
Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	93,002		29,041
Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,930,667	2,520,086
Residential Real Estate [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,369		1,475
Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	438,578	201,275
Consumer [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	312		461
30-59 Days Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	61,602	22,254
30-59 Days Past Due [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5,525		90
30-59 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,422	7,420
30-59 Days Past Due [Member] | Home Equity [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	248		14
30-59 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,560	957
30-59 Days Past Due [Member] | Commercial and Industrial [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	7
30-59 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	35,673	8,478
30-59 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	4,832	832
30-59 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	30,841	7,646
30-59 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	4,436
30-59 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,984	1,483
30-59 Days Past Due [Member] | Residential Real Estate [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	834		37
30-59 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5,963	3,916
30-59 Days Past Due [Member] | Consumer [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan			39
60-89 Days Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	22,891	24,970
60-89 Days Past Due [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	4,478		101
60-89 Days Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,332	3,043
60-89 Days Past Due [Member] | Home Equity [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	131		0
60-89 Days Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,958	8,872
60-89 Days Past Due [Member] | Commercial and Industrial [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	31
60-89 Days Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5,433	8,148
60-89 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,376
60-89 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	832
60-89 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	4,057	8,148
60-89 Days Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,468
60-89 Days Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	9,319	3,523
60-89 Days Past Due [Member] | Residential Real Estate [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan			68
60-89 Days Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,849	1,384
60-89 Days Past Due [Member] | Consumer [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	16		33
90 Days or More Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	63,892	41,893
90 Days or More Past Due [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	15,834		453
90 Days or More Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,130	4,622
90 Days or More Past Due [Member] | Home Equity [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	242		233
90 Days or More Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	11,402	4,616
90 Days or More Past Due [Member] | Commercial and Industrial [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,995		41
90 Days or More Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	24,766	23,641
90 Days or More Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	33
90 Days or More Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	24,733	23,641
90 Days or More Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	7,997
90 Days or More Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	18,312	8,121
90 Days or More Past Due [Member] | Residential Real Estate [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	520		170
90 Days or More Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,282	893
90 Days or More Past Due [Member] | Consumer [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	80		9
Total Past Due [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	148,385	89,117
Total Past Due [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	25,837		644
Total Past Due [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	14,884	15,085
Total Past Due [Member] | Home Equity [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	621		247
Total Past Due [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	21,920	14,445
Total Past Due [Member] | Commercial and Industrial [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	7,033		41
Total Past Due [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	65,872	40,267
Total Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	6,241	832
Total Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	832
Total Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	59,631	39,435
Total Past Due [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	15,901
Total Past Due [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	34,615	13,127
Total Past Due [Member] | Residential Real Estate [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,354		275
Total Past Due [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	11,094	6,193
Total Past Due [Member] | Consumer [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	96		81
Current [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	18,525,363	12,567,312
Current [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	110,161		40,168
Current [Member] | Home Equity [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,006,045	806,025
Current [Member] | Home Equity [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	862		1,016
Current [Member] | Commercial and Industrial [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,759,808	1,772,832
Current [Member] | Commercial and Industrial [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	5,749		8,531
Current [Member] | Commercial Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	10,435,974	7,286,414
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	1,772,867	1,351,251
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Land and Construction [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	24,218
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	8,663,107	5,935,163
Current [Member] | Commercial Real Estate [Member] | Commercial Real Estate - Improved Property [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	77,101		29,041
Current [Member] | Residential Real Estate [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	3,896,052	2,506,959
Current [Member] | Residential Real Estate [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	2,015		1,200
Current [Member] | Consumer [Member]
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	427,484	$ 195,082
Current [Member] | Consumer [Member] | Loan Modification
Financing Receivable, Modified, Past Due [Line Items]
Total modified loan	$ 216		$ 380

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