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Loans and Allowance for Credit Losses - Schedule of Types of Collateral (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	$ 47,967,915	$ 36,285,887
Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	415,990	333,461
Blanket Lien
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	134,460	70,680
Investment Securities/Cash
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	8,787	8,135
Auto
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	10,876	12,560
Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	2,542	5,249
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	14,506,375	10,288,560
Commercial | Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	23,980	17,520
Commercial | Blanket Lien
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	129,535	68,985
Commercial | Investment Securities/Cash
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	7,141	6,980
Commercial | Auto
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	5,530	6,544
Commercial | Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	2,338	5,215
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	22,083,734	16,307,486
Commercial real estate | Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	305,228	228,952
Commercial real estate | Blanket Lien
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	3,434	542
Commercial real estate | Investment Securities/Cash
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	1,362	1,046
Commercial real estate | Auto
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Commercial real estate | Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	119	0
BBCC | Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	1,332	3,201
BBCC | Blanket Lien
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	1,475	1,137
BBCC | Investment Securities/Cash
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	284	86
BBCC | Auto
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	132	248
BBCC | Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Residential real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	8,190,127	6,797,586
Residential real estate | Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	63,446	60,454
Residential real estate | Blanket Lien
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Residential real estate | Investment Securities/Cash
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Residential real estate | Auto
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Residential real estate | Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Indirect
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	1,058,734	1,096,778
Indirect | Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Indirect | Blanket Lien
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Indirect | Investment Securities/Cash
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Indirect | Auto
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	4,923	5,372
Indirect | Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Direct
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	589,133	514,144
Direct | Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	3,843	2,623
Direct | Blanket Lien
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	16	16
Direct | Investment Securities/Cash
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	23
Direct | Auto
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	291	396
Direct | Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	85	34
Home equity
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	1,539,812	1,281,333
Home equity | Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	18,161	20,711
Home equity | Blanket Lien
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Home equity | Investment Securities/Cash
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Home equity | Auto
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	0	0
Home equity | Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans, net of unearned income	$ 0	$ 0

X

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