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Allowance for Loan and Lease Losses - Recorded Investment in Loans and Leases (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment | $ 10,094 |
Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment | 724 |
Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment | $ 7,765 |
Originated |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | $ 19,385
Collectively evaluated for impairment |  | 4,681,661
Total |  | 4,701,046
Originated | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 2,110
Collectively evaluated for impairment |  | 966,875
Total |  | 968,985
Originated | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 13,496
Collectively evaluated for impairment |  | 2,283,152
Total |  | 2,296,648
Originated | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 3,779
Collectively evaluated for impairment |  | 1,340,687
Total |  | 1,344,466
Originated | Consumer and other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 0
Collectively evaluated for impairment |  | 73,625
Total |  | 73,625
Originated | Finance Leases |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 0
Collectively evaluated for impairment |  | 17,322
Total |  | 17,322
Acquired |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 2,830
Loans acquired with deteriorated credit quality |  | 9,149
Collectively evaluated for impairment |  | 208,170
Total |  | 220,149
Acquired | Commercial and industrial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 2
Loans acquired with deteriorated credit quality |  | 173
Collectively evaluated for impairment |  | 38,901
Total |  | 39,076
Acquired | Commercial Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 714
Loans acquired with deteriorated credit quality |  | 5,674
Collectively evaluated for impairment |  | 140,529
Total |  | 146,917
Acquired | Residential real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 2,114
Loans acquired with deteriorated credit quality |  | 3,302
Collectively evaluated for impairment |  | 27,955
Total |  | 33,371
Acquired | Consumer and other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 0
Loans acquired with deteriorated credit quality |  | 0
Collectively evaluated for impairment |  | 785
Total |  | 785
Acquired | Finance Leases |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Individually evaluated for impairment |  | 0
Loans acquired with deteriorated credit quality |  | 0
Collectively evaluated for impairment |  | 0
Total |  | $ 0

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- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + 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=118952595&loc=d3e4428-111522 + Details
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