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Loan and Lease Receivables - Schedule of Unpaid Principal Balance and Carrying Value for Acquired Non-impaired Loans and Leases (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020 | Sep. 30, 2020
--- | --- | --- | ---
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans and leases | $ 4,609,228 | $ 4,340,535 | $ 4,374,517
Acquired Non-impaired Loans and Leases |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Unpaid Principal Balance | 358,792 | 481,612 |
Loans and leases | 351,152 | 470,258 |
Commercial Real Estate |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans and leases | 1,618,378 | 1,421,670 | 1,347,855
Commercial Real Estate | Acquired Non-impaired Loans and Leases |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Unpaid Principal Balance | 240,271 | 302,091 |
Loans and leases | 235,103 | 295,599 |
Residential Real Estate |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans and leases | 507,754 | 572,271 | 633,396
Residential Real Estate | Acquired Non-impaired Loans and Leases |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Unpaid Principal Balance | 58,858 | 80,104 |
Loans and leases | 58,283 | 79,211 |
Construction, Land Development, and Other Land |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans and leases | 338,412 | 230,733 | 239,034
Construction, Land Development, and Other Land | Acquired Non-impaired Loans and Leases |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Unpaid Principal Balance | 271 | 278 |
Loans and leases | 206 | 212 |
Commercial and Industrial |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans and leases | 1,536,405 | 1,368,900 | 1,328,809
Commercial and Industrial | Acquired Non-impaired Loans and Leases |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Unpaid Principal Balance | 51,468 | 84,608 |
Loans and leases | 49,678 | 82,195 |
Installment and Other |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans and leases | 1,442 | 2,005 | 3,143
Installment and Other | Acquired Non-impaired Loans and Leases |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Unpaid Principal Balance | 286 | 553 |
Loans and leases | 275 | 536 |
Lease Financing Receivables |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Loans and leases | 338,756 | 227,141 | $ 200,089
Lease Financing Receivables | Acquired Non-impaired Loans and Leases |  |  |
Accounts Notes And Loans Receivable [Line Items] |  |  |
Unpaid Principal Balance | 7,638 | 13,978 |
Loans and leases | $ 7,607 | $ 12,505 |

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- Definition Loans and leases receivable unpaid principal balance. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
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