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Loans and Allowance for Credit Losses - Schedule of Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	$ 31,123,641	$ 13,601,846
Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	31,123,641	13,601,846
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	9,508,904	3,391,769
Commercial | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	9,298,624	3,200,212
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	12,457,070	6,380,674
Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	12,298,748	6,221,484
BBCC | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	368,602	350,747
Residential real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	6,460,441	2,255,289
Residential real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	6,460,441	2,255,289
Indirect
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	1,034,257	873,139
Indirect | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	1,034,257	873,139
Direct
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	629,186	140,385
Direct | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	629,186	140,385
Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	1,033,783	560,590
Home equity | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	1,033,783	560,590
Total Past Due | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	186,223	37,862
Total Past Due | Commercial | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	30,028	4,943
Total Past Due | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	81,444	8,724
Total Past Due | BBCC | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	1,698	1,018
Total Past Due | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	40,967	15,191
Total Past Due | Indirect | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	9,378	5,309
Total Past Due | Direct | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	9,450	1,008
Total Past Due | Home equity | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	13,258	1,669
30-59 Days Past Due | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	104,589	18,413
30-59 Days Past Due | Commercial | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	14,147	2,723
30-59 Days Past Due | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	47,240	1,402
30-59 Days Past Due | BBCC | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	730	747
30-59 Days Past Due | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	24,181	8,273
30-59 Days Past Due | Indirect | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	6,302	3,888
30-59 Days Past Due | Direct | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	5,404	687
30-59 Days Past Due | Home equity | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	6,585	693
60-89 Days Past Due | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	17,713	4,648
60-89 Days Past Due | Commercial | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	4,801	617
60-89 Days Past Due | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	1,312	280
60-89 Days Past Due | BBCC | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	365	162
60-89 Days Past Due | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	5,033	2,364
60-89 Days Past Due | Indirect | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	2,118	867
60-89 Days Past Due | Direct | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	2,118	159
60-89 Days Past Due | Home equity | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	1,966	199
Past Due 90 Days or More | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	63,921	14,801
Past Due 90 Days or More | Commercial | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	11,080	1,603
Past Due 90 Days or More | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	32,892	7,042
Past Due 90 Days or More | BBCC | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	603	109
Past Due 90 Days or More | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	11,753	4,554
Past Due 90 Days or More | Indirect | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	958	554
Past Due 90 Days or More | Direct | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	1,928	162
Past Due 90 Days or More | Home equity | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	4,707	777
Current | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	30,937,418	13,563,984
Current | Commercial | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	9,268,596	3,195,269
Current | Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	12,217,304	6,212,760
Current | BBCC | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	366,904	349,729
Current | Residential real estate | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	6,419,474	2,240,098
Current | Indirect | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	1,024,879	867,830
Current | Direct | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	619,736	139,377
Current | Home equity | Segment Portfolio Reclassification, Adjusted Balance
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unearned income	$ 1,020,525	$ 558,921

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
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-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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-Section 45
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-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 3B
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447

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