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Loans and Loans Held for Sale | 12 Months Ended
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Dec. 31, 2017
Receivables [Abstract] |
LOANS AND LOANS HELD FOR SALE | LOANS AND LOANS HELD FOR SALE Loans are presented net of unearned income of $5.2 million at December 31, 2017 and 2016 and net of a discount related to purchase accounting fair value adjustments of $2.8 million and $7.1 million at December 31, 2017 and December 31, 2016. The following table indicates the composition of the acquired and originated loans as of the dates presented:
| December 31,
(dollars in thousands) | 2017 |  | 2016
Commercial |  |  |
Commercial real estate | $ | 2,685,994 |  |  | $ | 2,498,476 |
Commercial and industrial | 1,433,266 |  |  | 1,401,035 |
Commercial construction | 384,334 |  |  | 455,884 |
Total Commercial Loans | 4,503,594 |  |  | 4,355,395 |
Consumer |  |  |
Residential mortgage | 698,774 |  |  | 701,982 |
Home equity | 487,326 |  |  | 482,284 |
Installment and other consumer | 67,204 |  |  | 65,852 |
Consumer construction | 4,551 |  |  | 5,906 |
Total Consumer Loans | 1,257,855 |  |  | 1,256,024 |
Total Portfolio Loans | 5,761,449 |  |  | 5,611,419 |
Loans held for sale | 4,485 |  |  | 3,793 |
Total Loans | $ | 5,765,934 |  |  | $ | 5,615,212 |
As of December 31, 2017, our acquired loans from the Merger were $387 million including $209 million of CRE, $92.1 million of C&I, $11.1 million of commercial construction, $57.5 million of residential mortgage and $17.3 million of home equity, installment and other consumer construction. These acquired loans decreased from acquired loans at December 31, 2016 of $543 million, including $273 million of CRE, $141 million of C&I, $33.0 million of commercial construction, $74.0 million of residential mortgage, $22.0 million of home equity, installment and other consumer construction. We attempt to limit our exposure to credit risk by diversifying our loan portfolio by segment, geography, collateral and industry and actively managing concentrations. When concentrations exist in certain segments, we mitigate this risk by reviewing the relevant economic indicators and internal risk rating trends and through stress testing of the loans in these segments. Total commercial loans represented 78 percent of total portfolio loans at both December 31, 2017 and 2016. Within our commercial portfolio, the CRE and Commercial Construction portfolios combined comprised $3.1 billion or 68 percent of total commercial loans and 53 percent of total portfolio loans at December 31, 2017 and comprised of $3.0 billion or 68 percent of total commercial loans and 53 percent of total portfolio loans at December 31, 2016. Further segmentation of the CRE and Commercial Construction portfolios by collateral type reveals no concentration in excess of 14 percent of both total CRE and Commercial Construction loans at either December 31, 2017 or December 31, 2016. Our market area includes Pennsylvania and the contiguous states of Ohio, West Virginia, New York and Maryland. The majority of our commercial and consumer loans are made to businesses and individuals in this market area, resulting in a geographic concentration. We believe our knowledge and familiarity with customers and conditions locally outweighs this geographic concentration risk. The conditions of the local and regional economies are monitored closely through publicly available data and information supplied by our customers. Our CRE and Commercial Construction portfolios have out-of-market exposure of 5.2 percent of their combined portfolios and 2.8 percent of total portfolio loans at December 31, 2017 and 5.2 percent of their combined portfolios and 2.7 percent of total portfolio loans at December 31, 2016. The following table summarizes our restructured loans as of the dates presented:
| December 31, 2017 |  | December 31, 2016
(dollars in thousands) | Performing TDRs |  |  | Nonperforming TDRs |  |  | Total TDRs |  |  | Performing TDRs |  |  | Nonperforming TDRs |  |  | Total TDRs |
Commercial real estate | $ | 2,579 |  |  | $ | 967 |  |  | $ | 3,546 |  |  | $ | 2,994 |  |  | $ | 646 |  |  | $ | 3,640 |
Commercial and industrial | 3,946 |  |  | 3,197 |  |  | 7,143 |  |  | 1,387 |  |  | 4,493 |  |  | 5,880 |
Commercial construction | 2,420 |  |  | 2,413 |  |  | 4,833 |  |  | 2,966 |  |  | 430 |  |  | 3,396 |
Residential mortgage | 2,039 |  |  | 3,585 |  |  | 5,624 |  |  | 2,375 |  |  | 5,068 |  |  | 7,443 |
Home equity | 3,885 |  |  | 979 |  |  | 4,864 |  |  | 3,683 |  |  | 954 |  |  | 4,637 |
Installment and other consumer | 32 |  |  | 9 |  |  | 41 |  |  | 18 |  |  | 7 |  |  | 25 |
Total | $ | 14,901 |  |  | $ | 11,150 |  |  | $ | 26,051 |  |  | $ | 13,423 |  |  | $ | 11,598 |  |  | $ | 25,021 |
The following tables present the restructured loans by type of concession for the years ended December 31:
| 2017 |  | 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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | 1 |  |  | $ | 709 |  |  | $ | 646 |  |  | $ | (63 | )
Interest Rate Reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 250 |  |  | 242 |  |  | (8 | )
Maturity date extension | 1 |  |  | 400 |  |  | 398 |  |  | (2 | ) |  | — |  |  | — |  |  | — |  |  | — |
Commercial and industrial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date extension | 1 |  |  | 274 |  |  | 777 |  |  | 503 |  |  | 4 |  |  | 4,756 |  |  | 3,334 |  |  | (1,422 | )
Maturity date extension and interest rate reduction | 2 |  |  | 1,800 |  |  | 1,805 |  |  | 5 |  |  | — |  |  | — |  |  | — |  |  | — |
Principal deferral | 2 |  |  | 113 |  |  | 113 |  |  | — |  |  | 5 |  |  | 985 |  |  | 986 |  |  | 1 |
Commercial construction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity date extension | — |  |  | — |  |  | — |  |  | — |  |  | 3 |  |  | 1,251 |  |  | 1,151 |  |  | (100 | )
Principal forgiveness | 2 |  |  | 1,996 |  |  | 1,996 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Residential mortgage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 1 |  |  | 33 |  |  | 31 |  |  | (2 | ) |  | 7 |  |  | 439 |  |  | 413 |  |  | (26 | )
Maturity date extension | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 483 |  |  | 414 |  |  | (69 | )
Maturity date extension and interest rate reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 280 |  |  | 279 |  |  | (1 | )
Principal deferral | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 3,273 |  |  | 3,133 |  |  | (140 | )
Home equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 21 |  |  | 689 |  |  | 643 |  |  | (46 | ) |  | 19 |  |  | 676 |  |  | 643 |  |  | (33 | )
Maturity date extension | 1 |  |  | 231 |  |  | 231 |  |  | — |  |  | 5 |  |  | 305 |  |  | 298 |  |  | (7 | )
Maturity date extension and interest rate reduction | 1 |  |  | 173 |  |  | 113 |  |  | (60 | ) |  | 2 |  |  | 604 |  |  | 598 |  |  | (6 | )
Principal deferral | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 47 |  |  | 45 |  |  | (2 | )
Installment and other consumer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 4 |  |  | 48 |  |  | 35 |  |  | (13 | ) |  | 2 |  |  | 16 |  |  | 10 |  |  | (6 | )
Total by Concession Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chapter 7 bankruptcy(2) | 26 |  |  | $ | 770 |  |  | $ | 709 |  |  | $ | (61 | ) |  | 29 |  |  | $ | 1,840 |  |  | $ | 1,712 |  |  | $ | (128 | )
Interest rate reduction | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 250 |  |  | 242 |  |  | (8 | )
Maturity date extension | 3 |  |  | 905 |  |  | 1,406 |  |  | 501 |  |  | 13 |  |  | 6,795 |  |  | 5,197 |  |  | (1,598 | )
Maturity date extension and interest rate reduction | 3 |  |  | 1,973 |  |  | 1,918 |  |  | (55 | ) |  | 3 |  |  | 884 |  |  | 877 |  |  | (7 | )
Principal deferral | 2 |  |  | 113 |  |  | 113 |  |  | — |  |  | 7 |  |  | 4,305 |  |  | 4,164 |  |  | (141 | )
Principal forgiveness | 2 |  |  | 1,996 |  |  | 1,996 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total | 36 |  |  | $ | 5,757 |  |  | $ | 6,142 |  |  | $ | 385 |  |  | 53 |  |  | $ | 14,074 |  |  | $ | 12,192 |  |  | $ | (1,882 | )
(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. During 2017, we modified 15 loans that were not considered to be TDRs, including 10 C&I loans for $10.8 million, and five CRE loans for $7.5 million. These modifications primarily represented insignificant delays in the timing of payments, concessions where we were adequately compensated through principal pay downs, fees or additional collateral or circumstances where we concluded that no concession was granted. As of December 31, 2017, we have two commitments totaling $0.2 million to lend additional funds on a TDR. We returned one TDR totaling $2.0 million to accruing status during 2017. We returned five TDRs to accruing status during 2016 totaling $0.9 million. Defaulted TDRs are defined as loans having a payment default of 90 days or more after the restructuring takes place. There were no TDRs that defaulted during the years ended December 31, 2017 and 2016 that were restructured within the last 12 months prior to defaulting. The following table is a summary of nonperforming assets as of the dates presented:
| December 31,
(dollars in thousands) | 2017 |  | 2016
Nonperforming Assets |  |  |
Nonaccrual loans | $ | 12,788 |  |  | $ | 31,037 |
Nonaccrual TDRs | 11,150 |  |  | 11,598 |
Total nonaccrual loans | 23,938 |  |  | 42,635 |
OREO | 469 |  |  | 679 |
Total Nonperforming Assets | $ | 24,407 |  |  | $ | 43,314 |
NPAs decreased $18.9 million to $24.4 million during 2017 compared to $43.3 million for the year ended 2016. The decrease primarily related to two large commercial nonperforming, impaired loans that paid off during the year that totaled $10.5 million. The following table presents a summary of the aggregate amount of loans to certain officers, directors of S&T or any affiliates of such persons as of December 31:
(dollars in thousands) | 2017 |  | 2016
Balance at beginning of year | $ | 25,167 |  |  | $ | 24,517 |
New loans | 25,203 |  |  | 22,740 |
Repayments or no longer considered a related party | (40,300 | ) |  | (22,090 | )
| $ | 10,070 |  |  | $ | 25,167 |

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5066-111524 Reference 2: 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(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(6)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 Reference 4: 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5162-111524 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524 + Details
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