Allowance for Loan and Lease Losses | Allowance for Loan and Lease Losses The following tables present the changes in the allowance for loan and lease losses and the recorded investment in loans and leases by portfolio segment for the periods indicated: Three Months Ended September 30, 2016 Commercial Real Estate Commercial Indirect Automobile Consumer Unallocated Total (In Thousands) Balance at June 30, 2016 $ 29,861 $ 22,916 $ 183 $ 4,298 $ — $ 57,258 Charge-offs (50 ) (545 ) (109 ) (135 ) — (839 ) Recoveries — 170 102 47 — 319 (Credit) provision for loan and lease losses (1,755 ) 3,923 (26 ) 12 — 2,154 Balance at September 30, 2016 $ 28,056 $ 26,464 $ 150 $ 4,222 $ — $ 58,892 Three Months Ended September 30, 2015 Commercial Real Estate Commercial Indirect Automobile Consumer Unallocated Total (In Thousands) Balance at June 30, 2015 $ 29,216 $ 20,229 $ 381 $ 4,012 $ 2,560 $ 56,398 Charge-offs — (1,388 ) (296 ) (247 ) — (1,931 ) Recoveries — 112 179 41 — 332 Provision (credit) for loan and lease losses 1,845 2,009 57 322 (2,560 ) 1,673 Balance at September 30, 2015 $ 31,061 $ 20,962 $ 321 $ 4,128 $ — $ 56,472 Nine Months Ended September 30, 2016 Commercial Real Estate Commercial Indirect Automobile Consumer Unallocated Total (In Thousands) Balance at December 31, 2015 $ 30,151 $ 22,018 $ 269 $ 4,301 $ — $ 56,739 Charge-offs (1,534 ) (3,250 ) (472 ) (782 ) — (6,038 ) Recoveries — 495 467 138 — 1,100 (Credit) provision for loan and lease losses (561 ) 7,201 (114 ) 565 — 7,091 Balance at September 30, 2016 $ 28,056 $ 26,464 $ 150 $ 4,222 $ — $ 58,892 Nine Months Ended September 30, 2015 Commercial Real Estate Commercial Indirect Automobile Consumer Unallocated Total (In Thousands) Balance at December 31, 2014 $ 29,594 $ 15,957 $ 2,331 $ 3,359 $ 2,418 $ 53,659 Charge-offs (550 ) (2,083 ) (1,513 ) (479 ) — (4,625 ) Recoveries — 418 1,170 83 — 1,671 Provision (credit) for loan and lease losses 2,017 6,670 (1,667 ) 1,165 (2,418 ) 5,767 Balance at September 30, 2015 $ 31,061 $ 20,962 $ 321 $ 4,128 $ — $ 56,472 The liability for unfunded credit commitments, which is included in other liabilities, was $1.3 million at both September 30, 2016 and December 31, 2015 , respectively, and $1.4 million at September 30, 2015 . These changes reflect changes in the estimate of loss exposure associated with certain unfunded credit commitments. No credit commitments were charged off against the liability account in the three-month and nine -month periods ended September 30, 2016 and 2015 , respectively. Provision for Credit Losses The provision for credit losses are set forth below for the periods indicated: Three Months Ended September 30, Nine Months Ended September 30, 2016 2015 2016 2015 (In Thousands) Provision (credit) for loan and lease losses: Commercial real estate $ (1,755 ) $ 1,845 $ (561 ) $ 2,017 Commercial 3,923 2,009 7,201 6,670 Indirect automobile (26 ) 57 (114 ) (1,667 ) Consumer 12 322 565 1,165 Unallocated — (2,560 ) — (2,418 ) Total provision for loan and lease losses 2,154 1,673 7,091 5,767 Unfunded credit commitments 61 82 47 164 Total provision for credit losses $ 2,215 $ 1,755 $ 7,138 $ 5,931 Allowance for Loan and Lease Losses Methodology Management has established a methodology to determine the adequacy of the allowance for loan and lease losses that assesses the risks and losses inherent in the portfolio. Additions to the allowance for loan and lease losses are made by charges to the provision for credit losses. Losses on loans and leases are charged off against the allowance when all or a portion of a loan or lease is considered uncollectible. Subsequent recoveries on loans previously charged off, if any, are credited to the allowance when realized. Management uses a consistent and systematic process and methodology to evaluate the adequacy of the allowance for loan and lease losses on a quarterly basis. For purposes of determining the allowance for loan and lease losses, the Company has segmented all loans and leases in the portfolio by product type into the following segments: (1) commercial real estate loans, (2) commercial loans and leases, and (3) consumer loans. Portfolio segments are further disaggregated into classes based on the associated risks within the segments. Commercial real estate loans are divided into three classes: commercial real estate loans, multi-family mortgage loans, and construction loans. Commercial loans and leases are divided into three classes: commercial loans, equipment financing, and loans to condominium associations. Consumer loans are divided into four classes: residential mortgage loans, home equity loans, indirect automobile loans, and other consumer loans. A formula-based credit evaluation approach is applied to each group, coupled with an analysis of certain loans for impairment. For each class of loan, management makes significant judgments in selecting the estimation method that fits the credit characteristics of its class and portfolio segment as set forth below. The general allowance related to loans collectively evaluated for impairment is determined using a formula-based approach utilizing the risk ratings of individual credits and loss factors derived from historic portfolio loss rates, which include estimates of incurred losses over an estimated loss emergence period (“LEP”). The LEP was generated utilizing a charge-off look-back analysis which studied the time from the first indication of elevated risk of repayment (or other early event indicating a problem) to eventual charge-off to support the LEP considered in the allowance calculation. This reserving methodology established the approximate number of months of LEP that represents incurred losses for each portfolio. In addition to quantitative measures, relevant qualitative factors include, but are not limited to: (1) levels and trends in past due and impaired loans, (2) levels and trends in charge-offs, (3) changes in underwriting standards, policy exceptions, and credit policy, (4) experience of lending management and staff, (5) economic trends, (6) industry conditions, (7) effects of changes in credit concentrations, (8) interest rate environment, and (9) regulatory and other changes. The general allowance related to the acquired loans collectively evaluated for impairment is determined based upon the degree, if any, of deterioration in the pooled loans subsequent to acquisition. The qualitative factors used in the determination are the same as those used for originated loans. During 2015, the Company enhanced and refined its general allowance methodology to provide a more precise quantification of probable losses in the portfolio. Under the enhanced methodology, management combined the historical loss histories of the Banks to generate a single set of ratios. Management believes it is appropriate to aggregate the ratios as the Banks share common environmental factors, operate in similar markets, and utilize common underwriting standards in accordance with the Company's Credit Policy. In prior periods, a historical loss history applicable to each Bank was used. Management employed a similar analysis for the consolidation of the qualitative factors as it did for the quantitative factors. Again, management believes the realignment of the existing nine qualitative factors used at each of the Banks into a single group of factors for use across the Company is appropriate based on the commonality of environmental factors, markets, and underwriting standards among the Banks. In the periods prior to the three months ended September 30, 2015, each of the Banks utilized a set of qualitative factors applicable to each Bank. As of September 30, 2016 , the Company had a portfolio of approximately $36.0 million in loans secured by taxi medallions issued by the cities of Boston and Cambridge. Application-based mobile ride services, such as Uber and Lyft, have generated increased competition in the transportation sector, resulting in a reduction in taxi utilization and, as a result, a reduction in the collateral value and credit quality of taxi medallion loans. This has increased the likelihood that loans secured by taxi medallions may default, or that the borrowers may be unable to repay these loans at maturity, potentially resulting in an increase in past due loans, troubled debt restructurings, and charge-offs. Therefore, beginning with the three months ended December 31, 2015 , the Company’s allowance calculation included a further segmentation of the commercial loans and leases to reflect the increased risk in the Company’s taxi medallion portfolio. This allowance calculation segmentation represents management’s estimations of the risks associated with the portfolio. As of September 30, 2016 , the Company had an allowance for loan and lease losses associated with taxi medallion loans of $6.0 million of which $4.7 million were specific reserves and $1.3 million was a general reserve. As of December 31, 2015 , the Company had a general reserve for loan and lease losses associated with taxi medallion loans of $4.3 million . The total troubled debt restructured loans and leases secured by taxi medallions increased by $8.8 million from $1.3 million at December 31, 2015 to $10.1 million at September 30, 2016 . The total loans and leases secured by taxi medallions that were placed on nonaccrual increased to $18.0 million at September 30, 2016 from zero at December 31, 2015 . However, further declines in demand for taxi services or further deterioration in the value of taxi medallions may result in higher delinquencies and losses beyond that provided for in the allowance for loan and lease losses. Based on the refinements to the Company’s allowance methodology discussed above, management determined that the potential risks anticipated by the unallocated allowance are now incorporated into the allowance methodology, making the unallocated allowance unnecessary. In the periods prior to the three months ended September 30, 2015, the unallocated allowance was used to recognize the estimated risk associated with the allocated general and specific allowances. It incorporated management’s evaluation of existing conditions that were not included in the allocated allowance determinations and provided for losses that arise outside of the ordinary course of business. Specific valuation allowances are established for impaired originated loans with book values greater than the discounted present value of expected future cash flows or, in the case of collateral-dependent impaired loans, for any excess of a loan's book balance greater than the fair value of its underlying collateral. Specific valuation allowances are established for acquired loans with deterioration in the discounted present value of expected future cash flows since acquisitions or, in the case of collateral dependent impaired loans, for any increase in the excess of a loan's book balance greater than the fair value of its underlying collateral. A specific valuation allowance for losses on troubled debt restructured loans is determined by comparing the net carrying amount of the troubled debt restructured loan with the restructured loan's cash flows discounted at the original effective rate. Impaired loans are reviewed quarterly with adjustments made to the specific reserve as necessary. As of September 30, 2016 , management believes that the methodology for calculating the allowance is sound and that the allowance provides a reasonable basis for determining and reporting on probable losses in the Company’s loan portfolios. The general allowance for loan and lease losses was $52.6 million at September 30, 2016 , compared to $53.1 million at December 31, 2015 . The general portion of the allowance for loan and lease losses decreased by $0.5 million during the nine months ended September 30, 2016 , primarily driven by the decrease in historical loss factors applied to commercial real estate and consumer loan portfolios and the improvement of credit risk ratings of loans within the commercial real estate and commercial portfolios, offset by the continued growth in the Company's loan portfolios. The specific allowance for loan and lease losses was $6.3 million at September 30, 2016 , compared to $3.6 million at December 31, 2015 . The specific allowance increased $2.7 million during the nine months ended September 30, 2016 , primarily due to the restructure of certain taxi medallion loans and changes in the collateral values of taxi medallions. Credit Quality Assessment At the time of loan origination, a rating is assigned based on the financial strength of the borrower and the value of assets pledged as collateral. The Company continually monitors the asset quality of the loan portfolio using all available information. The officer responsible for handling each loan is required to initiate changes to risk ratings when changes in facts and circumstances occur that warrant an upgrade or downgrade in a loan rating. Based on this information, loans demonstrating certain payment issues or other weaknesses may be categorized as delinquent, impaired, nonperforming and/or put on nonaccrual status. Additionally, in the course of resolving such loans, the Company may choose to restructure the contractual terms of certain loans to match the borrower’s ability to repay the loan based on their current financial condition. If a restructured loan meets certain criteria, it may be categorized as a troubled debt restructuring. The Company reviews numerous credit quality indicators when assessing the risk in its loan portfolio. For the commercial real estate, multi-family mortgage, construction, commercial, equipment financing, condominium association, and other consumer loan and lease classes, the Company utilizes an eight-grade loan rating system, which assigns a risk rating to each borrower based on a number of quantitative and qualitative factors associated with a loan transaction. Factors considered include industry and market conditions, position within the industry, earnings trends, operating cash flow, asset/liability values, debt capacity, guarantor strength, management and controls, financial reporting, collateral, and other considerations. In addition, the Company’s independent loan review group evaluates the credit quality and related risk ratings of the commercial real estate and commercial loan portfolios. The results of these reviews are reported to the Board of Directors. For consumer loans, the Company primarily relies on payment status for monitoring credit risk. The ratings categories used for assessing credit risk in the commercial real estate, multi-family mortgage, construction, commercial, equipment financing, condominium association and other consumer loan and lease classes are defined as follows: 1-4 Rating — Pass Loan rating grades “1” through “4” are classified as “Pass,” which indicates borrowers are performing in accordance with the terms of the loan and are less likely to result in losses due to the capacity of the borrowers to pay and the adequacy of the value of assets pledged as collateral. 5 Rating — Other Asset Especially Mentioned (“OAEM”) Borrowers exhibit potential credit weaknesses or downward trends deserving management’s attention. If not checked or corrected, these trends can weaken the Company’s asset position. While potentially weak, currently these borrowers are marginally acceptable; no loss of principal or interest is envisioned. 6 Rating — Substandard Borrowers exhibit well-defined weaknesses that jeopardize the orderly liquidation of debt. Substandard loans may be inadequately protected by the current net worth and paying capacity of the obligors or by the collateral pledged, if any. Normal repayment from the borrower is in jeopardy. Although no loss of principal is envisioned, there is a distinct possibility that a partial loss of interest and/or principal will occur if the deficiencies are not corrected. Collateral coverage may be inadequate to cover the principal obligation. 7 Rating — Doubtful Borrowers exhibit well-defined weaknesses that jeopardize the orderly liquidation of debt with the added provision that the weaknesses make collection of the debt in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Serious problems exist to the point where partial loss of principal is likely. 8 Rating — Definite Loss Borrowers deemed incapable of repayment. Loans to such borrowers are considered uncollectable and of such little value that continuation as active assets of the Company is not warranted. Assets rated as “OAEM,” “substandard” or “doubtful” based on criteria established under banking regulations are collectively referred to as “criticized” assets. Credit Quality Information The following tables present the recorded investment in loans in each class at September 30, 2016 by credit quality indicator. At September 30, 2016 Commercial Real Estate Multi- Family Mortgage Construction Commercial Equipment Financing Condominium Association Other Consumer (In Thousands) Originated: Loan rating: Pass $ 1,874,534 $ 671,690 $ 140,802 $ 604,282 $ 750,322 $ 53,903 $ 12,219 OAEM 1,546 — 188 7,540 1,039 — — Substandard 3,457 1,418 — 24,692 5,989 — 35 Doubtful 626 — — 144 736 — — Total originated 1,880,163 673,108 140,990 636,658 758,086 53,903 12,254 Acquired: Loan rating: Pass 147,218 29,913 218 11,203 6,553 — 126 OAEM 1,424 404 — 464 — — — Substandard 9,570 318 — 3,018 — — — Doubtful 102 — — 973 8 — — Total acquired 158,314 30,635 218 15,658 6,561 — 126 Total loans $ 2,038,477 $ 703,743 $ 141,208 $ 652,316 $ 764,647 $ 53,903 $ 12,380 At September 30, 2016 , there were no loans categorized as definite loss. At September 30, 2016 Indirect Automobile ($ In Thousands) Originated: Credit score: Over 700 $ 3,044 40.0 % 661-700 1,145 15.0 % 660 and below 3,391 44.6 % Data not available 27 0.4 % Total loans $ 7,607 100.0 % At September 30, 2016 Residential Mortgage Home Equity ($ In Thousands) Originated: Loan-to-value ratio: Less than 50% $ 126,290 20.5 % $ 153,001 44.9 % 50% - 69% 224,791 36.4 % 59,629 17.6 % 70% - 79% 166,363 26.9 % 45,455 13.3 % 80% and over 18,336 3.0 % 23,678 6.9 % Data not available 4,870 0.8 % 741 0.2 % Total originated 540,650 87.6 % 282,504 82.9 % Acquired: Loan-to-value ratio: Less than 50% 17,034 2.7 % 36,541 10.7 % 50% - 69% 28,240 4.6 % 15,939 4.7 % 70% - 79% 15,165 2.5 % 3,459 1.0 % 80% and over 11,416 1.9 % 1,116 0.3 % Data not available 4,560 0.7 % 1,395 0.4 % Total acquired 76,415 12.4 % 58,450 17.1 % Total loans and leases $ 617,065 100.0 % $ 340,954 100.0 % The following tables present the recorded investment in loans in each class at December 31, 2015 by credit quality indicator. At December 31, 2015 Commercial Real Estate Multi- Family Mortgage Construction Commercial Equipment Financing Condominium Association Other Consumer (In Thousands) Originated: Loan rating: Pass $ 1,668,891 $ 619,786 $ 129,534 $ 562,615 $ 709,381 $ 59,875 $ 12,017 OAEM 12,781 788 208 9,976 804 — — Substandard 780 291 — 1,714 1,414 — 22 Doubtful 2,096 — — 2,294 1,389 — — Total originated 1,684,548 620,865 129,742 576,599 712,988 59,875 12,039 Acquired: Loan rating: Pass 182,377 35,785 580 11,959 8,902 — 131 OAEM 1,202 612 — 902 — — — Substandard 7,066 1,218 — 3,071 — — — Doubtful 399 — — — — — — Total acquired 191,044 37,615 580 15,932 8,902 — 131 Total loans and leases $ 1,875,592 $ 658,480 $ 130,322 $ 592,531 $ 721,890 $ 59,875 $ 12,170 At December 31, 2015 , there were no loans categorized as definite loss. At December 31, 2015 Indirect Automobile ($ In Thousands) Originated: Credit score: Over 700 $ 5,435 39.7 % 661-700 1,965 14.4 % 660 and below 6,217 45.5 % Data not available 61 0.4 % Total loans $ 13,678 100.0 % At December 31, 2015 Residential Mortgage Home Equity ($ In Thousands) Originated: Loan-to-value ratio: Less than 50% $ 118,628 19.2 % $ 131,584 41.8 % 50% - 69% 214,390 34.8 % 51,492 16.4 % 70% - 79% 173,774 28.2 % 32,916 10.5 % 80% and over 17,808 2.9 % 18,082 5.7 % Data not available 3,246 0.5 % 634 0.2 % Total originated 527,846 85.6 % 234,708 74.6 % Acquired: Loan-to-value ratio: Less than 50% 18,857 3.1 % 48,563 15.4 % 50% - 69% 32,986 5.3 % 20,623 6.6 % 70% - 79% 17,883 2.9 % 7,144 2.3 % 80% and over 14,011 2.3 % 2,650 0.8 % Data not available 4,866 0.8 % 865 0.3 % Total acquired 88,603 14.4 % 79,845 25.4 % Total loans $ 616,449 100.0 % $ 314,553 100.0 % The following table presents information regarding foreclosed residential real estate property at the dates indicated. September 30, 2016 December 31, 2015 (In Thousands) Foreclosed residential real estate property held by the creditor $ — $ 362 Recorded investment in mortgage loans collateralized by residential real estate property that are in the process of foreclosure 1,400 298 Age Analysis of Past Due Loans and Leases The following tables present an age analysis of the recorded investment in total loans and leases at September 30, 2016 and December 31, 2015 . At September 30, 2016 Past Due Loans and Leases Past 31-60 Days 61-90 Days Greater Than 90 Days Total Current Total Loans and Leases Due Greater Than 90 Days and Accruing Nonaccrual Loans and Leases (In Thousands) Originated: Commercial real estate loans: Commercial real estate $ 2,386 $ 139 $ 802 $ 3,327 $ 1,876,836 $ 1,880,163 $ — $ 1,530 Multi-family mortgage — — 291 291 672,817 673,108 — 1,418 Construction — — — — 140,990 140,990 — Total commercial real estate loans 2,386 139 1,093 3,618 2,690,643 2,694,261 — 2,948 Commercial loans and leases: Commercial 1,998 301 9,476 11,775 624,883 636,658 — 21,950 Equipment financing 1,201 368 5,413 6,982 751,104 758,086 166 6,652 Condominium association 61 — — 61 53,842 53,903 — — Total commercial loans and leases 3,260 669 14,889 18,818 1,429,829 1,448,647 166 28,602 Indirect automobile 501 184 62 747 6,860 7,607 — 179 Consumer loans: Residential mortgage 1,131 — 178 1,309 539,341 540,650 — 1,533 Home equity 25 256 100 381 282,123 282,504 1 229 Other consumer 13 8 29 50 12,204 12,254 — 35 Total consumer loans 1,169 264 307 1,740 833,668 835,408 1 1,797 Total originated loans and leases $ 7,316 $ 1,256 $ 16,351 $ 24,923 $ 4,961,000 $ 4,985,923 $ 167 $ 33,526 At September 30, 2016 Past Due Loans and Leases Past 31-60 Days 61-90 Days Greater Than 90 Days Total Current Total Loans and Leases Due Greater Than 90 Days and Accruing Nonaccrual Loans and Leases (In Thousands) Acquired: Commercial real estate loans: Commercial real estate $ 431 $ 148 $ 4,047 $ 4,626 $ 153,688 $ 158,314 $ 3,974 $ 158 Multi-family mortgage — — — — 30,635 30,635 — — Construction — — — — 218 218 — — Total commercial real estate loans 431 148 4,047 4,626 184,541 189,167 3,974 158 Commercial loans and leases: Commercial 2 310 2,435 2,747 12,911 15,658 334 2,101 Equipment financing 8 — — 8 6,553 6,561 — — Total commercial loans and leases 10 310 2,435 2,755 19,464 22,219 334 2,101 Consumer loans: Residential mortgage 46 95 3,844 3,985 72,430 76,415 3,628 216 Home equity 864 175 671 1,710 56,740 58,450 172 1,551 Other consumer — — — — 126 126 — — Total consumer loans 910 270 4,515 5,695 129,296 134,991 3,800 1,767 Total acquired loans and leases $ 1,351 $ 728 $ 10,997 $ 13,076 $ 333,301 $ 346,377 $ 8,108 $ 4,026 Total loans and leases $ 8,667 $ 1,984 $ 27,348 $ 37,999 $ 5,294,301 $ 5,332,300 $ 8,275 $ 37,552 At December 31, 2015 Past Due Loans and Leases Past 31-60 Days 61-90 Days Greater Than 90 Days Total Current Total Loans and Leases Due Greater Than 90 Days and Accruing Nonaccrual Loans and Leases (In Thousands) Originated: Commercial real estate loans: Commercial real estate $ 1,782 $ — $ 2,097 $ 3,879 $ 1,680,669 $ 1,684,548 $ — $ 2,876 Multi-family mortgage — — 16 16 620,849 620,865 16 291 Construction 652 — — 652 129,090 129,742 — — Total commercial real estate loans 2,434 — 2,113 4,547 2,430,608 2,435,155 16 3,167 Commercial loans and leases: Commercial 4,578 1,007 2,368 7,953 568,646 576,599 24 3,586 Equipment financing 1,681 595 2,143 4,419 708,569 712,988 77 2,610 Condominium association 205 124 — 329 59,546 59,875 — — Total commercial loans and leases 6,464 1,726 4,511 12,701 1,336,761 1,349,462 101 6,196 Indirect automobile 1,058 335 106 1,499 12,179 13,678 — 675 Consumer loans: Residential mortgage 1,384 — 229 1,613 526,233 527,846 — 1,873 Home equity 390 237 9 636 234,072 234,708 — 319 Other consumer 19 2 25 46 11,993 12,039 — 29 Total consumer loans 1,793 239 263 2,295 772,298 774,593 — 2,221 Total originated loans and leases $ 11,749 $ 2,300 $ 6,993 $ 21,042 $ 4,551,846 $ 4,572,888 $ 117 $ 12,259 At December 31, 2015 Past Due Loans and Leases Past 31-60 Days 61-90 Days Greater Than 90 Days Total Current Total Loans and Leases Due Greater Than 90 Days and Accruing Nonaccrual Loans and Leases (In Thousands) Acquired: Commercial real estate loans: Commercial real estate $ 1,336 $ 369 $ 7,588 $ 9,293 $ 181,751 $ 191,044 $ 4,982 $ 2,606 Multi-family mortgage — — 1,077 1,077 36,538 37,615 1,077 — Construction — — — — 580 580 — — Total commercial real estate loans 1,336 369 8,665 10,370 218,869 229,239 6,059 2,606 Commercial loans and leases: Commercial 351 23 2,967 3,341 12,591 15,932 325 2,678 Equipment financing — — — — 8,902 8,902 — — Total commercial loans and leases 351 23 2,967 3,341 21,493 24,834 325 2,678 Consumer loans: Residential mortgage 326 216 2,399 2,941 85,662 88,603 2,047 352 Home equity 1,012 386 460 1,858 77,987 79,845 142 1,438 Other consumer — — — — 131 131 — — Total consumer loans 1,338 602 2,859 4,799 163,780 168,579 2,189 1,790 Total acquired loans and leases $ 3,025 $ 994 $ 14,491 $ 18,510 $ 404,142 $ 422,652 $ 8,573 $ 7,074 Total loan and leases $ 14,774 $ 3,294 $ 21,484 $ 39,552 $ 4,955,988 $ 4,995,540 $ 8,690 $ 19,333 Commercial Real Estate Loans — At September 30, 2016 , loans outstanding in the three classes within this segment expressed as a percentage of total loans and leases outstanding were as follows: commercial real estate loans — 38.3% ; multi-family mortgage loans — 13.2% ; and construction loans — 2.6% . Loans in this portfolio that are on nonaccrual status and/or risk-rated “substandard” or worse are evaluated on an individual loan basis for impairment. For non-impaired commercial real estate loans, loss factors are applied to outstanding loans by risk rating for each of the three classes in the portfolio. The factors applied are based primarily on historic loan loss experience and an assessment of internal and external factors and other relevant information. Commercial Loans and Leases — At September 30, 2016 , loans and leases outstanding in the three classes within this segment expressed as a percent of total loans and leases outstanding were as follows: commercial loans and leases — 12.2% ; equipment financing loans — 14.4% ; and loans to condominium associations — 1.0% . Loans and leases in this portfolio that are on nonaccrual status and/or risk-rated “substandard” or worse are evaluated on an individual basis for impairment. For non-impaired commercial loans and leases, loss factors are applied to outstanding loans by risk rating for the respective class in the portfolio. Consumer Loans — At September 30, 2016 , loans outstanding within the four classes within this segment expressed as a percent of total loans and leases outstanding were as follows: residential mortgage loans — 11.6% ; home equity loans — 6.4% ; indirect automobile loans — 0.1% , and other consumer loans — 0.2% . Significant risk characteristics related to the residential mortgage and home equity loan portfolios are the geographic concentration of the properties financed within selected communities in the greater Boston and Providence metropolitan areas. The payment status and loan-to-value ratio are the primary credit quality indicators used for residential mortgage loans and home equity loans. Generally, loans are not made when the loan-to-value ratio exceeds 80% unless private mortgage insurance is obtained and/or there is a financially strong guarantor. Consumer loans that become 90 days or more past due, or are placed on nonaccrual regardless of past due status, are reviewed on an individual basis for impairment by assessing the net realizable value of underlying collateral and the economic condition of the borrower. Impaired Loans and Leases A loan is considered to be impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due (both interest and principal) according to the contractual terms of the loan agreement. The Company has defined the population of impaired loans to include nonaccrual loans and troubled debt restructured loans. When the ultimate collectability of the total principal of an impaired loan or lease is in doubt and the loan is on nonaccrual status, all payments are applied to principal, under the cost recovery method. When the ultimate collectability of the total principal of an impaired loan or lease is not in doubt and the loan or lease is on nonaccrual status, contractual interest is credited to interest income when received, under the cash basis method. The following tables include the recorded investment and unpaid principal balances of impaired loans and leases with the related allowance amount, if applicable, for the originated and acquired loan and lease portfolios at the dates indicated. Also presented are the average recorded investments in the impaired loans and leases and the related amount of interest recognized during the period that the impaired loans were impaired. At September 30, 2016 At December 31, 2015 Recorded (1) Unpaid Related Recorded Investment (2) Unpaid Related (In Thousands) Originated: With no related allowance recorded: Commercial real estate $ 6,608 $ 6,604 $ — $ 2,758 $ 2,756 $ — Commercial 21,338 21,311 — 14,097 14,074 — Consumer 3,461 3,456 — 4,582 4,575 — Total originated with no related allowance recorded 31,407 31,371 — 21,437 21,405 — With an allowance recorded: Commercial real estate 4,543 4,542 153 6,150 6,150 2,167 Commercial 14,317 14,298 5,580 2,215 2,213 1,202 Consumer 248 246 98 — — — Total originated with an allowance recorded 19,108 19,086 5,831 8,365 8,363 3,369 Total originated impaired loans and leases 50,515 50,457 5,831 29,802 29,768 3,369 Acquired: With no related allowance recorded: Commercial real estate 9,851 9,851 — 7,035 7,035 — Commercial 3,886 3,886 — 4,053 4,052 — Consumer 8,422 8,437 — 7,549 7,565 — Total acquired with no related allowance recorded 22,159 22,174 — 18,637 18,652 — With an allowance recorded: Commercial real estate — — — 2,606 2,606 148 Commercial 486 486 410 486 486 112 Consumer 425 425 29 174 174 9 Total acquired with an allowance recorded 911 911 439 3,266 3,266 269 Total acquired impaired loans and leases 23,070 23,085 439 21,903 21,918 269 Total impaired loans and leases $ 73,585 $ 73,542 $ 6,270 $ 51,705 $ 51,686 $ 3,638 (1) Includes originated and acquired nonaccrual loans of $29.7 million and $4.0 million , respectively, at September 30, 2016 . (2) Includes originated and acquired nonaccrual loans of $9.3 million and $7.1 million , respectively, at December 31, 2015 . Three Months Ended September 30, 2016 September 30, 2015 Average Interest Average Interest (In Thousands) Originated: With no related allowance recorded: Commercial real estate $ 6,636 $ 49 $ 3,077 $ 21 Commercial 21,474 147 15,112 171 Consumer 3,480 18 4,421 15 Total originated with no related allowance recorded 31,590 214 22,610 207 With an allowance recorded: Commercial real estate 4,549 48 6,172 49 Commercial 14,390 3 7,700 2 Consumer 248 — — — Total originated with an allowance recorded 19,187 51 13,872 51 Total originated impaired loans and leases 50,777 265 36,482 258 Acquired: With no related allowance recorded: Commercial real estate 9,952 67 10,813 39 Commercial 4,127 29 4,113 16 Consumer 8,475 16 8,094 19 Total acquired with no related allowance recorded 22,554 112 23,020 74 With an allowance recorded: Commercial real estate — — — — Commercial 486 — 596 — Consumer 423 2 93 1 Total acquired with an allowance recorded 909 2 689 1 Total acquired impaired loans and leases 23,463 114 23,709 75 Total impaired loans and leases $ 74,240 $ 379 $ 60,191 $ 333 Nine Months Ended September 30, 2016 September 30, 2015 Average Interest Average Interest (In Thousands) Originated: With no related allowance recorded: Commercial real estate $ 5,655 $ 119 $ 4,403 $ 65 Commercial 16,602 412 15,095 474 Consumer 3,865 55 4,156 45 Total originated with no related allowance recorded 26,122 586 23,654 584 With an allowance recorded: Commercial real estate 4,957 146 4,791 148 Commercial 13,017 5 6,687 8 Consumer 165 — 112 — Total originated with an allowan |