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ALLOWANCE FOR LOAN AND LEASE LOSSES - Changes in the Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Jun. 30, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Dec. 31, 2017
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses | $ 5,228 | $ 3,238 | $ 25,969 | $ 9,276 |  |  |  |
Loans and Leases Receivable, Allowance | 56,552 | 57,715 | 56,552 | 57,715 | $ 61,549 | $ 56,542 | $ 54,076 | $ 54,021
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs | (11,659) | (2,063) | (29,406) | (11,554) |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 1,434 | 2,464 | 3,447 | 5,972 |  |  |  |
Allowance for Loan and Lease Losses Write-offs, Net | 10,225 | (401) | 25,959 | 5,582 |  |  |  |
Ending allowance on loans individually evaluated for impairment | 279 |  | 279 |  |  | 1,160 |  |
Ending allowance on loans collectively evaluated for impairment | 56,273 |  | 56,273 |  |  | 55,382 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Ending balance of loans individually evaluated for impairment | 79,143 |  | 79,143 |  |  | 86,809 |  |
Ending balance of loans collectively evaluated for impairment | 8,984,535 |  | 8,984,535 |  |  | 8,737,405 |  |
Loans and Leases Receivable, Net of Deferred Income | 9,063,678 |  | 9,063,678 |  |  | 8,824,214 |  |
Impaired Financing Receivable, Related Allowance | 56,552 |  | 56,552 |  |  | 56,542 |  |
Commercial |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses | 2,654 | 2,035 | 22,164 | 6,252 |  |  |  |
Loans and Leases Receivable, Allowance | 18,240 | 19,958 | 18,240 | 19,958 | 24,586 | 18,746 | 17,528 | 17,598
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs | (9,556) | (232) | (23,757) | (5,473) |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 556 | 627 | 1,087 | 1,581 |  |  |  |
Allowance for Loan and Lease Losses Write-offs, Net | 9,000 | (395) | 22,670 | 3,892 |  |  |  |
Ending allowance on loans individually evaluated for impairment | 91 |  | 91 |  |  | 667 |  |
Ending allowance on loans collectively evaluated for impairment | 18,149 |  | 18,149 |  |  | 18,079 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Ending balance of loans individually evaluated for impairment | 36,917 |  | 36,917 |  |  | 37,633 |  |
Ending balance of loans collectively evaluated for impairment | 2,433,100 |  | 2,433,100 |  |  | 2,477,028 |  |
Loans and Leases Receivable, Net of Deferred Income | 2,470,017 |  | 2,470,017 |  |  | 2,514,661 |  |
Impaired Financing Receivable, Related Allowance | 18,240 |  | 18,240 |  |  | 18,746 |  |
Lease financing |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses | (388) | 287 | (25) | 408 |  |  |  |
Loans and Leases Receivable, Allowance | 1,005 | 1,084 | 1,005 | 1,084 | 1,393 | 1,130 | 797 | 675
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs | 0 | 0 | (100) | 0 |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 0 | 0 | 0 | 1 |  |  |  |
Allowance for Loan and Lease Losses Write-offs, Net | 0 | 0 | 100 | (1) |  |  |  |
Ending allowance on loans individually evaluated for impairment | 43 |  | 43 |  |  | 0 |  |
Ending allowance on loans collectively evaluated for impairment | 962 |  | 962 |  |  | 1,130 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Ending balance of loans individually evaluated for impairment | 284 |  | 284 |  |  | 22 |  |
Ending balance of loans collectively evaluated for impairment | 92,332 |  | 92,332 |  |  | 93,393 |  |
Loans and Leases Receivable, Net of Deferred Income | 92,616 |  | 92,616 |  |  | 93,415 |  |
Impaired Financing Receivable, Related Allowance | 1,005 |  | 1,005 |  |  | 1,130 |  |
Construction real estate |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses | (152) | (114) | (714) | 294 |  |  |  |
Loans and Leases Receivable, Allowance | 2,767 | 4,017 | 2,767 | 4,017 | 2,919 | 3,413 | 3,985 | 3,577
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs | 0 | 0 | 0 | 0 |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 0 | 146 | 68 | 146 |  |  |  |
Allowance for Loan and Lease Losses Write-offs, Net | 0 | (146) | (68) | (146) |  |  |  |
Ending allowance on loans individually evaluated for impairment | 0 |  | 0 |  |  | 0 |  |
Ending allowance on loans collectively evaluated for impairment | 2,767 |  | 2,767 |  |  | 3,413 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Ending balance of loans individually evaluated for impairment | 5 |  | 5 |  |  | 9 |  |
Ending balance of loans collectively evaluated for impairment | 515,955 |  | 515,955 |  |  | 548,926 |  |
Loans and Leases Receivable, Net of Deferred Income | 515,960 |  | 515,960 |  |  | 548,935 |  |
Impaired Financing Receivable, Related Allowance | 2,767 |  | 2,767 |  |  | 3,413 |  |
Commercial real estate |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses | 1,684 | 959 | 1,966 | 1,155 |  |  |  |
Loans and Leases Receivable, Allowance | 21,853 | 21,354 | 21,853 | 21,354 | 20,357 | 21,048 | 20,511 | 20,930
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs | (535) | (902) | (1,835) | (3,156) |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 347 | 786 | 674 | 2,425 |  |  |  |
Allowance for Loan and Lease Losses Write-offs, Net | 188 | 116 | 1,161 | 731 |  |  |  |
Ending allowance on loans individually evaluated for impairment | 127 |  | 127 |  |  | 461 |  |
Ending allowance on loans collectively evaluated for impairment | 21,726 |  | 21,726 |  |  | 20,587 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Ending balance of loans individually evaluated for impairment | 19,756 |  | 19,756 |  |  | 25,022 |  |
Ending balance of loans collectively evaluated for impairment | 3,996,152 |  | 3,996,152 |  |  | 3,729,659 |  |
Loans and Leases Receivable, Net of Deferred Income | 4,015,908 |  | 4,015,908 |  |  | 3,754,681 |  |
Impaired Financing Receivable, Related Allowance | 21,853 |  | 21,853 |  |  | 21,048 |  |
Residential real estate |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses | 702 | 50 | 841 | 136 |  |  |  |
Loans and Leases Receivable, Allowance | 5,496 | 4,644 | 5,496 | 4,644 | 5,008 | 4,964 | 4,668 | 4,683
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs | (278) | (145) | (510) | (342) |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 64 | 71 | 201 | 167 |  |  |  |
Allowance for Loan and Lease Losses Write-offs, Net | 214 | 74 | 309 | 175 |  |  |  |
Ending allowance on loans individually evaluated for impairment | 18 |  | 18 |  |  | 32 |  |
Ending allowance on loans collectively evaluated for impairment | 5,478 |  | 5,478 |  |  | 4,932 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Ending balance of loans individually evaluated for impairment | 16,133 |  | 16,133 |  |  | 17,598 |  |
Ending balance of loans collectively evaluated for impairment | 1,038,874 |  | 1,038,874 |  |  | 938,048 |  |
Loans and Leases Receivable, Net of Deferred Income | 1,055,007 |  | 1,055,007 |  |  | 955,646 |  |
Impaired Financing Receivable, Related Allowance | 5,496 |  | 5,496 |  |  | 4,964 |  |
Home equity |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses | 68 | 63 | 427 | (60) |  |  |  |
Loans and Leases Receivable, Allowance | 5,083 | 4,932 | 5,083 | 4,932 | 5,307 | 5,348 | 4,801 | 4,935
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs | (627) | (351) | (1,784) | (978) |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 335 | 419 | 1,092 | 1,035 |  |  |  |
Allowance for Loan and Lease Losses Write-offs, Net | 292 | (68) | 692 | (57) |  |  |  |
Ending allowance on loans individually evaluated for impairment | 0 |  | 0 |  |  | 0 |  |
Ending allowance on loans collectively evaluated for impairment | 5,083 |  | 5,083 |  |  | 5,348 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Ending balance of loans individually evaluated for impairment | 5,944 |  | 5,944 |  |  | 6,351 |  |
Ending balance of loans collectively evaluated for impairment | 770,941 |  | 770,941 |  |  | 810,931 |  |
Loans and Leases Receivable, Net of Deferred Income | 776,885 |  | 776,885 |  |  | 817,282 |  |
Impaired Financing Receivable, Related Allowance | 5,083 |  | 5,083 |  |  | 5,348 |  |
Installment |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses | (2) | (288) | 49 | (201) |  |  |  |
Loans and Leases Receivable, Allowance | 421 | 310 | 421 | 310 | 395 | 362 | 290 | 307
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs | (65) | (43) | (192) | (277) |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 93 | 351 | 202 | 481 |  |  |  |
Allowance for Loan and Lease Losses Write-offs, Net | (28) | (308) | (10) | (204) |  |  |  |
Ending allowance on loans individually evaluated for impairment | 0 |  | 0 |  |  | 0 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Loans and Leases Receivable, Net of Deferred Income | 1,969,177 |  | 1,969,177 |  |  | 1,912,522 |  |
Installment |  |  |  |  |  |  |  |
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Ending allowance on loans individually evaluated for impairment | 0 |  | 0 |  |  | 0 |  |
Ending allowance on loans collectively evaluated for impairment | 421 |  | 421 |  |  | 362 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Ending balance of loans individually evaluated for impairment | 104 |  | 104 |  |  | 174 |  |
Ending balance of loans collectively evaluated for impairment | 88,171 |  | 88,171 |  |  | 93,038 |  |
Loans and Leases Receivable, Net of Deferred Income | 88,275 |  | 88,275 |  |  | 93,212 |  |
Impaired Financing Receivable, Related Allowance | 421 |  | 421 |  |  | 362 |  |
Credit card |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses | 662 | 246 | 1,261 | 1,292 |  |  |  |
Loans and Leases Receivable, Allowance | 1,687 | 1,416 | 1,687 | 1,416 | $ 1,584 | 1,531 | $ 1,496 | $ 1,316
Allowance for loan and lease losses: |  |  |  |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs | (598) | (390) | (1,228) | (1,328) |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts | 39 | 64 | 123 | 136 |  |  |  |
Allowance for Loan and Lease Losses Write-offs, Net | (559) | $ (326) | (1,105) | $ (1,192) |  |  |  |
Ending allowance on loans individually evaluated for impairment | 0 |  | 0 |  |  | 0 |  |
Ending allowance on loans collectively evaluated for impairment | 1,687 |  | 1,687 |  |  | 1,531 |  |
Loans and Leases: |  |  |  |  |  |  |  |
Ending balance of loans individually evaluated for impairment | 0 |  | 0 |  |  | 0 |  |
Ending balance of loans collectively evaluated for impairment | 49,010 |  | 49,010 |  |  | 46,382 |  |
Loans and Leases Receivable, Net of Deferred Income | 49,010 |  | 49,010 |  |  | 46,382 |  |
Impaired Financing Receivable, Related Allowance | $ 1,687 |  | $ 1,687 |  |  | $ 1,531 |  |

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