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Allowance for Loan and Lease Losses - Recorded Investment and Related Allowance (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Originated Loans and Leases |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | $ 9,727 | $ 7,303
Unpaid Principal Balance With No Related Allowance | 13,711 | 7,844
Recorded Investment With Related Allowance | 1,254 | 6,864
Unpaid Principal Balance With Related Allowance | 1,273 | 6,864
Related Allowance | 435 | 3,762
Recorded Investment | 10,981 | 14,167
Unpaid Principal Balance | 14,984 | 14,708
Total Acquired Loans |  |
Financing Receivable, Impaired [Line Items] |  |
Related Allowance | 0 | 0
Recorded Investment | 3,521 | 3,438
Unpaid Principal Balance | 3,706 | 3,652
Commercial and industrial | Originated Loans and Leases | Other |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 1,116 | 183
Unpaid Principal Balance With No Related Allowance | 1,343 | 271
Recorded Investment With Related Allowance | 809 | 5,183
Unpaid Principal Balance With Related Allowance | 828 | 5,183
Related Allowance | 384 | 3,365
Commercial and industrial | Total Acquired Loans | Other |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 12 | 32
Unpaid Principal Balance With No Related Allowance | 12 | 32
Commercial real estate | Originated Loans and Leases | Other |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 4,564 | 3,205
Unpaid Principal Balance With No Related Allowance | 8,107 | 3,405
Recorded Investment With Related Allowance | 445 | 1,681
Unpaid Principal Balance With Related Allowance | 445 | 1,681
Related Allowance | 51 | 397
Commercial real estate | Total Acquired Loans | Other |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 840 | 842
Unpaid Principal Balance With No Related Allowance | 922 | 924
Residential real estate | Originated Loans and Leases | Home equity |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 4,047 | 3,915
Unpaid Principal Balance With No Related Allowance | 4,261 | 4,168
Residential real estate | Total Acquired Loans | Home equity |  |
Financing Receivable, Impaired [Line Items] |  |
Recorded Investment With No Related Allowance | 2,669 | 2,564
Unpaid Principal Balance With No Related Allowance | $ 2,772 | $ 2,696

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