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Loans and Allowance for Credit Losses - Schedule of Composition of Loans and Impact of Adoption (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | $ 31,123,641 | $ 13,601,846 |  |
Allowance for credit losses on loans | (303,671) | (107,341) | $ (131,388) | $ (54,619)
Net loans | 30,819,970 | 13,494,505 |  |
Portfolio Segment Reclassification |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 0 | 0 |  |
Segment Portfolio Reclassification, Adjusted Balance |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 31,123,641 | 13,601,846 |  |
Allowance for credit losses on loans | (303,671) | (107,341) |  |
Net loans | 30,819,970 | 13,494,505 |  |
Commercial |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 9,508,904 | 3,391,769 |  |
Allowance for credit losses on loans | (120,612) | (27,232) | (30,567) | (21,359)
Commercial | PPP Loans |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 32,500 | 169,000 |  |
Commercial | Portfolio Segment Reclassification |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | (210,280) | (191,557) |  |
Commercial | Segment Portfolio Reclassification, Adjusted Balance |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 9,298,624 | 3,200,212 |  |
Commercial real estate |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 12,457,070 | 6,380,674 |  |
Allowance for credit losses on loans | (138,244) | (64,004) | (75,810) | (20,535)
Commercial real estate | Portfolio Segment Reclassification |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | (158,322) | (159,190) |  |
Commercial real estate | Segment Portfolio Reclassification, Adjusted Balance |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 12,298,748 | 6,221,484 |  |
BBCC |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans | (2,431) | (2,458) | (6,120) | (2,279)
BBCC | Portfolio Segment Reclassification |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 368,602 | 350,747 |  |
BBCC | Segment Portfolio Reclassification, Adjusted Balance |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 368,602 | 350,747 |  |
Residential real estate |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 6,460,441 | 2,255,289 |  |
Allowance for credit losses on loans | (21,916) | (9,347) | (12,608) | (2,299)
Residential real estate | Portfolio Segment Reclassification |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 0 | 0 |  |
Residential real estate | Segment Portfolio Reclassification, Adjusted Balance |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 6,460,441 | 2,255,289 |  |
Consumer |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 2,697,226 | 1,574,114 |  |
Consumer | Portfolio Segment Reclassification |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | (2,697,226) | (1,574,114) |  |
Indirect |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 1,034,257 | 873,139 |  |
Allowance for credit losses on loans | (1,532) | (1,743) | (3,580) | (5,319)
Indirect | Portfolio Segment Reclassification |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 1,034,257 | 873,139 |  |
Indirect | Segment Portfolio Reclassification, Adjusted Balance |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 1,034,257 | 873,139 |  |
Direct |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 629,186 | 140,385 |  |
Allowance for credit losses on loans | (12,116) | (528) | (855) | (1,863)
Direct | Portfolio Segment Reclassification |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 629,186 | 140,385 |  |
Direct | Segment Portfolio Reclassification, Adjusted Balance |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 629,186 | 140,385 |  |
Home equity |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 1,033,783 | 560,590 |  |
Allowance for credit losses on loans | (6,820) | (2,029) | $ (1,848) | $ (965)
Home equity | Portfolio Segment Reclassification |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 1,033,783 | 560,590 |  |
Home equity | Segment Portfolio Reclassification, Adjusted Balance |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | 1,033,783 | 560,590 |  |
Direct Finance Leases |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Total loans, net of unearned income | $ 188,100 | $ 25,100 |  |

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