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Loans - Summary of Portfolio Loans by Category (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, before unearned loan fees | $ 10,011,918 | $ 9,737,138
Portfolio loans, net |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, before unearned loan fees | 10,018,815 | 9,744,427
Unearned loan fees, net | (6,897) | (7,289)
Loans and Lease Receivable, Including Unearned Loan Fees | 10,011,918 | 9,737,138
Portfolio loans, net | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, before unearned loan fees | 4,032,189 | 3,859,964
Portfolio loans, net | Commercial - investor owned |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, before unearned loan fees | 2,418,079 | 2,357,820
Portfolio loans, net | Commercial - owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, before unearned loan fees | 2,281,223 | 2,270,551
Portfolio loans, net | Construction and land development |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, before unearned loan fees | 663,264 | 611,565
Portfolio loans, net | Residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, before unearned loan fees | 364,059 | 395,537
Portfolio loans, net | Total real estate loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, before unearned loan fees | 5,726,625 | 5,635,473
Portfolio loans, net | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans, before unearned loan fees | $ 260,001 | $ 248,990

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