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Loans and Loans Held for Sale (Tables) | 9 Months Ended
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Sep. 30, 2017
Receivables [Abstract] |
Composition of Loans | The following table indicates the composition of loans as of the dates presented:
(dollars in thousands) | September 30, 2017 |  | December 31, 2016
Commercial |  |  |
Commercial real estate | $ | 2,681,693 |  |  | $ | 2,498,476 |
Commercial and industrial | 1,446,811 |  |  | 1,401,035 |
Commercial construction | 432,887 |  |  | 455,884 |
Total Commercial Loans | 4,561,391 |  |  | 4,355,395 |
Consumer |  |  |
Residential mortgage | 697,367 |  |  | 701,982 |
Home equity | 487,806 |  |  | 482,284 |
Installment and other consumer | 69,644 |  |  | 65,852 |
Consumer construction | 4,550 |  |  | 5,906 |
Total Consumer Loans | 1,259,367 |  |  | 1,256,024 |
Total Portfolio Loans | 5,820,758 |  |  | 5,611,419 |
Loans held for sale | 47,936 |  |  | 3,793 |
Total Loans | $ | 5,868,694 |  |  | $ | 5,615,212 |
Restructured Loans for Periods Presented | The following table summarizes restructured loans as of the dates presented:
| September 30, 2017 |  | December 31, 2016
(dollars in thousands) | Performing TDRs |  | Nonperforming TDRs |  | Total TDRs |  | Performing TDRs |  | Nonperforming TDRs |  | Total TDRs
Commercial real estate | $ | 2,618 |  |  | $ | 1,083 |  |  | $ | 3,701 |  |  | $ | 2,994 |  |  | $ | 646 |  |  | $ | 3,640 |
Commercial and industrial | 4,063 |  |  | 3,580 |  |  | 7,643 |  |  | 1,387 |  |  | 4,493 |  |  | 5,880 |
Commercial construction | 2,914 |  |  | 421 |  |  | 3,335 |  |  | 2,966 |  |  | 430 |  |  | 3,396 |
Residential mortgage | 2,096 |  |  | 4,095 |  |  | 6,191 |  |  | 2,375 |  |  | 5,068 |  |  | 7,443 |
Home equity | 3,871 |  |  | 1,013 |  |  | 4,884 |  |  | 3,683 |  |  | 954 |  |  | 4,637 |
Installment and other consumer | 43 |  |  | 11 |  |  | 54 |  |  | 18 |  |  | 7 |  |  | 25 |
Total | $ | 15,605 |  |  | $ | 10,203 |  |  | $ | 25,808 |  |  | $ | 13,423 |  |  | $ | 11,598 |  |  | $ | 25,021 |
| Three Months Ended September 30, 2017 |  | Three months ended September 30, 2016
(dollars in thousands) | Number of Loans |  | Pre-Modification Outstanding Recorded Investment(1) |  | Post-Modification Outstanding Recorded Investment(1) |  | Total Difference in Recorded Investment |  | Number of Loans |  | Pre-Modification Outstanding Recorded Investment(1) |  | Post-Modification Outstanding Recorded Investment(1) |  | Total Difference in Recorded Investment
Commercial real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 248 |  |  | 250 |  |  | 2 |
Maturity date extension | 1 |  |  | 400 |  |  | 400 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Commercial and industrial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date extension | 1 |  |  | 274 |  |  | 816 |  |  | 542 |  |  | 2 |  |  | 4,105 |  |  | 4,162 |  |  | 57 |
Residential mortgage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 1 |  |  | 148 |  |  | — |  |  | (148 | ) |  | 3 |  |  | 153 |  |  | 152 |  |  | (1 | )
Maturity date extension and interest rate reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 280 |  |  | 280 |  |  | — |
Home equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 4 |  |  | 72 |  |  | 70 |  |  | (2 | ) |  | 7 |  |  | 163 |  |  | 161 |  |  | (2 | )
Installment and other consumer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 8 |  |  | 200 |  |  | 185 |  |  | (15 | ) |  | — |  |  | — |  |  | — |  |  | — |
Total by Concession Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 13 |  |  | 420 |  |  | 255 |  |  | (165 | ) |  | 10 |  |  | 316 |  |  | 313 |  |  | (3 | )
Interest rate reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 248 |  |  | 250 |  |  | 2 |
Maturity date extension and interest rate reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 280 |  |  | 280 |  |  | — |
Maturity date extension | 2 |  |  | 674 |  |  | 1,216 |  |  | 542 |  |  | 2 |  |  | 4,105 |  |  | 4,162 |  |  | 57 |
Total | 15 |  |  | $ | 1,094 |  |  | $ | 1,471 |  |  | $ | 377 |  |  | 14 |  |  | $ | 4,949 |  |  | $ | 5,005 |  |  | $ | 56 |
(1) Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end. (2) Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed.
| Nine Months Ended September 30, 2017 |  | Nine Months Ended September 30, 2016
(dollars in thousands) | Number of Loans |  | Pre-Modification Outstanding Recorded Investment(1) |  | Post-Modification Outstanding Recorded Investment(1) |  | Total Difference in Recorded Investment |  | Number of Loans |  | Pre-Modification Outstanding Recorded Investment(1) |  | Post-Modification Outstanding Recorded Investment(1) |  | Total Difference in Recorded Investment
Commercial real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal deferral | 1 |  |  | $ | 100 |  |  | $ | 100 |  |  | $ | — |  |  | 1 |  |  | $ | 4,721 |  |  | $ | 2,270 |  |  | $ | (2,451 | )
Chapter 7 bankruptcy(2) | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 709 |  |  | 681 |  |  | (28 | )
Interest rate reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 250 |  |  | 248 |  |  | (2 | )
Maturity date extension | 1 |  |  | 400 |  |  | 400 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Commercial and industrial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal deferral | 1 |  |  | 429 |  |  | 429 |  |  | — |  |  | 5 |  |  | 985 |  |  | 985 |  |  | — |
Maturity Date extension and interest rate reduction | 2 |  |  | 1,799 |  |  | 1,799 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Maturity date extension | 1 |  |  | 274 |  |  | 816 |  |  | 542 |  |  | 5 |  |  | 4,860 |  |  | 4,891 |  |  | 31 |
Commercial Construction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date extension | — |  |  | — |  |  | — |  |  | — |  |  | 5 |  |  | 1,357 |  |  | 1,302 |  |  | (55 | )
Residential mortgage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal deferral | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 3,273 |  |  | 3,273 |  |  | — |
Chapter 7 bankruptcy(2) | 2 |  |  | 181 |  |  | 32 |  |  | (149 | ) |  | 7 |  |  | 439 |  |  | 433 |  |  | (6 | )
Maturity date extension | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 483 |  |  | 483 |  |  | — |
Maturity date extension and interest rate reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 280 |  |  | 280 |  |  | — |
Home equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal deferral | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 47 |  |  | 46 |  |  | (1 | )
Chapter 7 bankruptcy(2) | 13 |  |  | 380 |  |  | 375 |  |  | (5 | ) |  | 16 |  |  | 481 |  |  | 470 |  |  | (11 | )
Maturity date extension and interest rate reduction | 1 |  |  | 173 |  |  | 120 |  |  | (53 | ) |  | 1 |  |  | 130 |  |  | 128 |  |  | (2 | )
Maturity date extension | 1 |  |  | 231 |  |  | 231 |  |  | — |  |  | 4 |  |  | 274 |  |  | 272 |  |  | (2 | )
Installment and other consumer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 10 |  |  | 237 |  |  | 220 |  |  | (17 | ) |  | 2 |  |  | 16 |  |  | 13 |  |  | (3 | )
Total by Concession Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal deferral | 2 |  |  | 529 |  |  | 529 |  |  | — |  |  | 8 |  |  | 9,026 |  |  | 6,574 |  |  | (2,452 | )
Chapter 7 bankruptcy(2) | 25 |  |  | 798 |  |  | 627 |  |  | (171 | ) |  | 26 |  |  | 1,645 |  |  | 1,597 |  |  | (48 | )
Interest rate reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 250 |  |  | 248 |  |  | (2 | )
Maturity date extension and interest rate reduction | 3 |  |  | 1,972 |  |  | 1,919 |  |  | (53 | ) |  | 2 |  |  | 410 |  |  | 408 |  |  | (2 | )
Maturity date extension | 3 |  |  | 905 |  |  | 1,447 |  |  | 542 |  |  | 15 |  |  | 6,974 |  |  | 6,948 |  |  | (26 | )
Total | 33 |  |  | $ | 4,204 |  |  | $ | 4,522 |  |  | $ | 318 |  |  | 52 |  |  | $ | 18,305 |  |  | $ | 15,775 |  |  | $ | (2,530 | )
(1) Excludes loans that were fully paid off or fully charged-off by period end. The pre-modification balance represents the balance outstanding prior to modification. The post-modification balance represents the outstanding balance at period end. (2) Chapter 7 bankruptcy loans where the debt has been legally discharged through the bankruptcy court and not reaffirmed.
Summary of Nonperforming Assets | The following table is a summary of nonperforming assets as of the dates presented:
| Nonperforming Assets
(dollars in thousands) | September 30, 2017 |  | December 31, 2016
Nonperforming Assets |  |  |
Nonaccrual loans | $ | 19,290 |  |  | $ | 31,037 |
Nonaccrual TDRs | 10,203 |  |  | 11,598 |
Total nonaccrual loans | 29,493 |  |  | 42,635 |
OREO | 1,033 |  |  | 679 |
Total Nonperforming Assets | $ | 30,526 |  |  | $ | 43,314 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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