XML 48 R28.htm IDEA: XBRL DOCUMENT
v3.20.2

Loans, Allowance for Loan Losses and Credit Quality (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
Financing Receivable, Allowance for Credit Loss [Line Items] |
Tabular disclosure of financing receivables bifurcated by type of impairment evaluation [Table Text Block] | The following table bifurcates the amount of loans and the allowance allocated to each loan category based on the type of impairment analysis as of December 31, 2019:
| December 31, 2019 |
| Commercial and Industrial |  | Commercial Real Estate |  | Commercial Construction |  | Small Business |  | Residential Real Estate |  | Home Equity |  | Other Consumer |  | Total |
| (Dollars in thousands) |
Financing receivables ending balance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collectively evaluated for impairment | $ | 1,370,580 |  |  | $ | 3,987,848 |  |  | $ | 547,293 |  |  | $ | 173,960 |  |  | $ | 1,571,848 |  |  | $ | 1,127,963 |  |  | $ | 29,663 |  |  | $ | 8,809,155 |  |
Individually evaluated for impairment | 24,456 |  |  | 8,337 |  |  | — |  |  | 537 |  |  | 11,228 |  |  | 4,948 |  |  | 122 |  |  | 49,628 |  |
Purchased credit impaired loans | — |  |  | 6,174 |  |  | — |  |  | — |  |  | 7,493 |  |  | 887 |  |  | 302 |  |  | 14,856 |  |
Total loans by group | $ | 1,395,036 |  |  | $ | 4,002,359 |  |  | $ | 547,293 |  |  | $ | 174,497 |  |  | $ | 1,590,569 |  |  | $ | 1,133,798 |  |  | $ | 30,087 |  |  | $ | 8,873,639 |  | (1)
(1)The amount of net deferred costs on originated loans included in the ending balance was $7.1 million at December 31, 2019. Net unamortized discounts on acquired loans not deemed to be purchased credit impaired ("PCI") included in the ending balance was $21.6 million at December 31, 2019.
Summary of changes in allowance for loan losses | The following table summarizes the change in allowance for credit losses by loan category, and bifurcates the amount of loans allocated to each loan category for the period indicated:
| Three Months Ended September 30, 2020
| (Dollars in thousands)
| Commercial and Industrial |  | Commercial Real Estate |  | Commercial Construction |  | Small Business |  | Residential Real Estate |  | Home Equity |  | Other Consumer |  | Total
Allowance for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ | 25,662 |  |  | $ | 36,956 |  |  | $ | 4,501 |  |  | $ | 4,561 |  |  | $ | 15,046 |  |  | $ | 24,860 |  |  | $ | 590 |  |  | $ | 112,176 |
Charge-offs | (185) |  |  | (3,885) |  |  | — |  |  | (49) |  |  | — |  |  | — |  |  | (185) |  |  | (4,304) |
Recoveries | 1 |  |  | 9 |  |  | — |  |  | 2 |  |  | 1 |  |  | 21 |  |  | 219 |  |  | 253 |
Provision for credit loss expense | 2,741 |  |  | 6,306 |  |  | 709 |  |  | 79 |  |  | (884) |  |  | (1,309) |  |  | (142) |  |  | 7,500 |
Ending balance (1) | $ | 28,219 |  |  | $ | 39,386 |  |  | $ | 5,210 |  |  | $ | 4,593 |  |  | $ | 14,163 |  |  | $ | 23,572 |  |  | $ | 482 |  |  | $ | 115,625 |
| Nine Months Ended September 30, 2020
| (Dollars in thousands)
| Commercial and Industrial |  | Commercial Real Estate |  | Commercial Construction |  | Small Business |  | Residential Real Estate |  | Home Equity |  | Other Consumer |  | Total
Allowance for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance, pre adoption of Topic 326 | $ | 17,594 |  |  | $ | 32,935 |  |  | $ | 6,053 |  |  | $ | 1,746 |  |  | $ | 3,440 |  |  | $ | 5,576 |  |  | $ | 396 |  |  | $ | 67,740 |
Cumulative effect accounting adjustment (2) | (1,984) |  |  | (13,048) |  |  | (3,652) |  |  | 495 |  |  | 9,828 |  |  | 7,012 |  |  | 212 |  |  | (1,137) |
Cumulative effect accounting adjustment (3) | 49 |  |  | 337 |  |  | — |  |  | — |  |  | 423 |  |  | 319 |  |  | 29 |  |  | 1,157 |
Charge-offs | (185) |  |  | (3,885) |  |  | — |  |  | (194) |  |  | — |  |  | (142) |  |  | (1,342) |  |  | (5,748) |
Recoveries | 47 |  |  | 9 |  |  | — |  |  | 8 |  |  | 2 |  |  | 174 |  |  | 873 |  |  | 1,113 |
Provision for credit loss expense | 12,698 |  |  | 23,038 |  |  | 2,809 |  |  | 2,538 |  |  | 470 |  |  | 10,633 |  |  | 314 |  |  | 52,500 |
Ending balance (1) | $ | 28,219 |  |  | $ | 39,386 |  |  | $ | 5,210 |  |  | $ | 4,593 |  |  | $ | 14,163 |  |  | $ | 23,572 |  |  | $ | 482 |  |  | $ | 115,625 |
(1)Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $36.7 million as of September 30, 2020. (2)Represents adjustment needed to reflect the cumulative day one impact pursuant to the Company's adoption of Accounting Standards Update 2016-13. The adjustment represents a $1.1 million decrease to the allowance attributable to the change in accounting methodology for estimating the allowance for credit losses resulting from the Company's adoption of the standard. (3)Represents adjustment needed to reflect the day one reclassification of the Company's PCI loan balances to PCD and the associated gross-up, pursuant to the Company's adoption of Accounting Standards Update 2016-13. The adjustment represents a $1.2 million increase to the allowance resulting from the day one reclassification. The following table summarizes changes in allowance for loan losses by loan category for the periods indicated:
| Three Months Ended September 30, 2019
| (Dollars in thousands)
| Commercial and Industrial |  | Commercial Real Estate |  | Commercial Construction |  | Small Business |  | Residential Real Estate |  | Home Equity |  | Other Consumer |  | Total
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ | 16,857 |  |  | $ | 32,660 |  |  | $ | 5,593 |  |  | $ | 1,768 |  |  | $ | 3,296 |  |  | $ | 5,547 |  |  | $ | 239 |  |  | $ | 65,960 |
Charge-offs | — |  |  | (82) |  |  | — |  |  | (125) |  |  | — |  |  | (28) |  |  | (472) |  |  | (707) |
Recoveries | 1,003 |  |  | 106 |  |  | — |  |  | 61 |  |  | 140 |  |  | 194 |  |  | 185 |  |  | 1,689 |
Provision (benefit) | (528) |  |  | (33) |  |  | 240 |  |  | 48 |  |  | (88) |  |  | 36 |  |  | 325 |  |  | — |
Ending balance | $ | 17,332 |  |  | $ | 32,651 |  |  | $ | 5,833 |  |  | $ | 1,752 |  |  | $ | 3,348 |  |  | $ | 5,749 |  |  | $ | 277 |  |  | $ | 66,942 |
| Nine Months Ended September 30, 2019
| (Dollars in thousands)
| Commercial and Industrial |  | Commercial Real Estate |  | Commercial Construction |  | Small Business |  | Residential Real Estate |  | Home Equity |  | Other Consumer |  | Total
Allowance for loan losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ | 15,760 |  |  | $ | 32,370 |  |  | $ | 5,158 |  |  | $ | 1,756 |  |  | $ | 3,219 |  |  | $ | 5,608 |  |  | $ | 422 |  |  | $ | 64,293 |
Charge-offs | — |  |  | (82) |  |  | — |  |  | (319) |  |  | — |  |  | (212) |  |  | (1,125) |  |  | (1,738) |
Recoveries | 1,127 |  |  | 152 |  |  | — |  |  | 108 |  |  | 141 |  |  | 278 |  |  | 581 |  |  | 2,387 |
Provision (benefit) | 445 |  |  | 211 |  |  | 675 |  |  | 207 |  |  | (12) |  |  | 75 |  |  | 399 |  |  | 2,000 |
Ending balance | $ | 17,332 |  |  | $ | 32,651 |  |  | $ | 5,833 |  |  | $ | 1,752 |  |  | $ | 3,348 |  |  | $ | 5,749 |  |  | $ | 277 |  |  | $ | 66,942 |
Ending balance: collectively evaluated for impairment | $ | 17,326 |  |  | $ | 32,610 |  |  | $ | 5,833 |  |  | $ | 1,741 |  |  | $ | 2,729 |  |  | $ | 5,594 |  |  | $ | 272 |  |  | $ | 66,105 |
Ending balance: individually evaluated for impairment | $ | 6 |  |  | $ | 41 |  |  | $ | — |  |  | $ | 11 |  |  | $ | 619 |  |  | $ | 155 |  |  | $ | 5 |  |  | $ | 837 |
Internal risk-rating categories for the Company's commercial portfolio | he following table details the amortized cost balances of the Company's loan portfolios, presented by credit quality indicator and origination year as of the date indicated below:
| September 30, 2020
| 2020 |  | 2019 |  | 2018 |  | 2017 |  | 2016 |  | Prior |  | Revolving Loans |  | Revolving converted to Term |  | Total
| (Dollars in thousands)
Commercial and industrial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 1,012,974 |  | (1) | $ | 153,137 |  |  | $ | 107,318 |  |  | $ | 34,826 |  |  | $ | 23,065 |  |  | $ | 22,334 |  |  | $ | 601,937 |  |  | $ | 2,577 |  |  | $ | 1,958,168 |
Potential weakness | 2,560 |  |  | 2,302 |  |  | 7,833 |  |  | 4,573 |  |  | 1,219 |  |  | 318 |  |  | 15,248 |  |  | 50 |  |  | 34,103 |
Definite weakness - loss unlikely | 2,732 |  |  | 1,553 |  |  | 22,748 |  |  | 5,500 |  |  | 2,483 |  |  | 1,419 |  |  | 33,496 |  |  | — |  |  | 69,931 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 143 |  |  | — |  |  | — |  |  | 143 |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial and industrial | $ | 1,018,266 |  |  | $ | 156,992 |  |  | $ | 137,899 |  |  | $ | 44,899 |  |  | $ | 26,767 |  |  | $ | 24,214 |  |  | $ | 650,681 |  |  | $ | 2,627 |  |  | $ | 2,062,345 |
Commercial real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 753,415 |  |  | $ | 859,548 |  |  | $ | 512,371 |  |  | $ | 587,345 |  |  | $ | 399,442 |  |  | $ | 751,629 |  |  | $ | 39,998 |  |  | $ | 16,341 |  |  | $ | 3,920,089 |
Potential weakness | 20,639 |  |  | 15,957 |  |  | 20,313 |  |  | 7,941 |  |  | 27,253 |  |  | 47,875 |  |  | — |  |  | — |  |  | 139,978 |
Definite weakness - loss unlikely | 4,261 |  |  | 2,265 |  |  | 10,092 |  |  | 21,081 |  |  | 2,170 |  |  | 6,605 |  |  | — |  |  | — |  |  | 46,474 |
Partial loss probable | — |  |  | — |  |  | 18,923 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 18,923 |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial real estate | $ | 778,315 |  |  | $ | 877,770 |  |  | $ | 561,699 |  |  | $ | 616,367 |  |  | $ | 428,865 |  |  | $ | 806,109 |  |  | $ | 39,998 |  |  | $ | 16,341 |  |  | $ | 4,125,464 |
Commercial construction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 182,291 |  |  | $ | 196,420 |  |  | $ | 73,298 |  |  | $ | 66,406 |  |  | $ | — |  |  | $ | 6,750 |  |  | $ | 31,372 |  |  | $ | 1,077 |  |  | $ | 557,614 |
Potential weakness | — |  |  | 9,352 |  |  | 5,037 |  |  | — |  |  | — |  |  | — |  |  | 328 |  |  | — |  |  | 14,717 |
Definite weakness - loss unlikely | — |  |  | — |  |  | 1,003 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,003 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial construction | $ | 182,291 |  |  | $ | 205,772 |  |  | $ | 79,338 |  |  | $ | 66,406 |  |  | $ | — |  |  | $ | 6,750 |  |  | $ | 31,700 |  |  | $ | 1,077 |  |  | $ | 573,334 |
Small business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 27,457 |  |  | $ | 28,766 |  |  | $ | 20,806 |  |  | $ | 14,627 |  |  | $ | 14,528 |  |  | $ | 22,644 |  |  | $ | 34,569 |  |  | $ | — |  |  | $ | 163,397 |
Potential weakness | — |  |  | 10 |  |  | 16 |  |  | 10 |  |  | 755 |  |  | 232 |  |  | 736 |  |  | — |  |  | 1,759 |
Definite weakness - loss unlikely | 184 |  |  | 408 |  |  | 78 |  |  | 170 |  |  | 98 |  |  | 723 |  |  | 786 |  |  | — |  |  | 2,447 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 29 |  |  | — |  |  | 29 |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total small business | $ | 27,641 |  |  | $ | 29,184 |  |  | $ | 20,900 |  |  | $ | 14,807 |  |  | $ | 15,381 |  |  | $ | 23,599 |  |  | $ | 36,120 |  |  | $ | — |  |  | $ | 167,632 |
Residential real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 131,691 |  |  | $ | 167,901 |  |  | $ | 187,194 |  |  | $ | 168,048 |  |  | $ | 241,638 |  |  | $ | 449,219 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,345,691 |
Default | 728 |  |  | — |  |  | 760 |  |  | 235 |  |  | 167 |  |  | 4,724 |  |  | — |  |  | — |  |  | 6,614 |
Total residential real estate | $ | 132,419 |  |  | $ | 167,901 |  |  | $ | 187,954 |  |  | $ | 168,283 |  |  | $ | 241,805 |  |  | $ | 453,943 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,352,305 |
Home equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 60,274 |  |  | $ | 66,238 |  |  | $ | 59,534 |  |  | $ | 59,387 |  |  | $ | 44,817 |  |  | $ | 122,397 |  |  | $ | 681,784 |  |  | $ | 4,057 |  |  | $ | 1,098,488 |
Default | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 455 |  |  | 2,044 |  |  | 67 |  |  | 2,566 |
Total home equity | $ | 60,274 |  |  | $ | 66,238 |  |  | $ | 59,534 |  |  | $ | 59,387 |  |  | $ | 44,817 |  |  | $ | 122,852 |  |  | $ | 683,828 |  |  | $ | 4,124 |  |  | $ | 1,101,054 |
Other consumer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 679 |  |  | $ | 450 |  |  | $ | 209 |  |  | $ | 739 |  |  | $ | 696 |  |  | $ | 7,737 |  |  | $ | 12,493 |  |  | $ | — |  |  | $ | 23,003 |
Default | — |  |  | — |  |  | — |  |  | 20 |  |  | — |  |  | 34 |  |  | 2 |  |  | — |  |  | 56 |
Total other consumer | $ | 679 |  |  | $ | 450 |  |  | $ | 209 |  |  | $ | 759 |  |  | $ | 696 |  |  | $ | 7,771 |  |  | $ | 12,495 |  |  | $ | — |  |  | $ | 23,059 |
Total | $ | 2,199,885 |  |  | $ | 1,504,307 |  |  | $ | 1,047,533 |  |  | $ | 970,908 |  |  | $ | 758,331 |  |  | $ | 1,445,238 |  |  | $ | 1,454,822 |  |  | $ | 24,169 |  |  | $ | 9,405,193 |
The following tables detail the amount of outstanding principal balances relative to each of the risk-rating categories for the Company’s loan portfolio as of December 31, 2019:
|  |  | December 31, 2019
Category | Risk Rating |  | Commercial and Industrial |  | Commercial Real Estate |  | Commercial Construction |  | Small Business |  | Total
|  |  | (Dollars in thousands)
Pass | 1 - 6 |  | $ | 1,274,155 |  |  | $ | 3,860,555 |  |  | $ | 542,608 |  |  | $ | 171,213 |  |  | $ | 5,848,531 |
Potential weakness | 7 |  | 63,485 |  |  | 97,268 |  |  | 2,247 |  |  | 1,416 |  |  | 164,416 |
Definite weakness-loss unlikely | 8 |  | 57,396 |  |  | 44,536 |  |  | 2,438 |  |  | 1,868 |  |  | 106,238 |
Partial loss probable | 9 |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Definite loss | 10 |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total |  |  | $ | 1,395,036 |  |  | $ | 4,002,359 |  |  | $ | 547,293 |  |  | $ | 174,497 |  |  | $ | 6,119,185 |
Weighted average FICO scores and the weighted average combined LTV ratio | The following table shows the weighted average FICO scores and the weighted average combined LTV ratios at the dates indicated below:
| September 30 2020 |  | December 31 2019
Residential portfolio |  |  |
FICO score (re-scored)(1) | 749 |  |  | 749 |
LTV (re-valued)(2) | 57.7 | % |  | 59.0 | %
Home equity portfolio |  |  |
FICO score (re-scored)(1) | 770 |  |  | 767 |
LTV (re-valued)(2)(3) | 46.6 | % |  | 46.6 | %
(1)The average FICO scores at September 30, 2020 are based upon rescores available from August 2020 and origination score data for loans booked in September 2020. The average FICO scores at December 31, 2019 were based upon rescores available from November 2019 and origination score data for loans booked in December 2019. (2)The combined LTV ratios for September 30, 2020 are based upon updated automated valuations as of August 2020, when available, and/or the most current valuation data available. The combined LTV ratios for December 31, 2019 were based upon updated automated valuations as of November 2019, when available, and/or the most current valuation data available as of such date. The updated automated valuations provide new information on loans that may be available since the previous valuation was obtained. If no new information is available, the valuation will default to the previously obtained data or most recent appraisal. (3)For home equity loans and lines in a subordinate lien, the LTV data represents a combined LTV, taking into account the senior lien data for loans and lines.
Summary of nonaccrual loans | The following table shows information regarding nonaccrual loans as of the dates indicated:
| Nonaccrual Balances
| September 30, 2020 |  | December 31, 2019
| With Allowance for Credit Losses |  | Without Allowance for Credit Losses |  | Total |  | Total
| (Dollars in thousands)
Commercial and industrial | $ | 17,816 |  |  | $ | 19,035 |  |  | $ | 36,851 |  |  | $ | 22,574 |
Commercial real estate | 17,501 |  |  | 20,663 |  |  | 38,164 |  |  | 3,016 |
Small business | 542 |  |  | — |  |  | 542 |  |  | 311 |
Residential real estate | 13,379 |  |  | 2,850 |  |  | 16,229 |  |  | 13,360 |
Home equity | 6,052 |  |  | 107 |  |  | 6,159 |  |  | 6,570 |
Other consumer | 79 |  |  | — |  |  | 79 |  |  | 61 |
Total nonaccrual loans (1) | $ | 55,369 |  |  | $ | 42,655 |  |  | $ | 98,024 |  |  | $ | 45,892 |
(1)Included in these amounts were $23.8 million and $24.8 million of nonaccruing TDRs at September 30, 2020 and December 31, 2019, re
Foreclosed Residential Real Estate Property [Table Text Block] | The following table shows information regarding foreclosed residential real estate property at the dates indicated:
| September 30, 2020 |  | December 31, 2019
| (Dollars in thousands)
Foreclosed residential real estate property held by the creditor | $ | — |  |  | $ | — |
Recorded investment in mortgage loans collateralized by residential real estate property that are in the process of foreclosure | $ | 2,113 |  |  | $ | 3,294 |
Age analysis of past due financing receivables | The following tables show the age analysis of past due financing receivables as of the dates indicated:
| September 30, 2020 |
| 30-59 days |  | 60-89 days |  | 90 days or more |  | Total Past Due |  |  |  | Total Financing Receivables |  | Amortized Cost >90 Days and Accruing |
| Number of Loans |  | Principal Balance |  | Number of Loans |  | Principal Balance |  | Number of Loans |  | Principal Balance |  | Number of Loans |  | Principal Balance |  | Current |  |
| (Dollars in thousands) |
Loan Portfolio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | 1 |  |  | $ | 52 |  |  | 6 |  |  | $ | 3,608 |  |  | 5 |  |  | $ | 930 |  |  | 12 |  |  | $ | 4,590 |  |  | $ | 2,057,755 |  |  | $ | 2,062,345 |  |  | $ | — |  |
Commercial real estate | 1 |  |  | 99 |  |  | 2 |  |  | 8,269 |  |  | 5 |  |  | 1,355 |  |  | 8 |  |  | 9,723 |  |  | 4,115,741 |  |  | 4,125,464 |  |  | — |  |
Commercial construction | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 573,334 |  |  | 573,334 |  |  | — |  |
Small business | 6 |  |  | 514 |  |  | 4 |  |  | 455 |  |  | 12 |  |  | 124 |  |  | 22 |  |  | 1,093 |  |  | 166,539 |  |  | 167,632 |  |  | — |  |
Residential real estate | 11 |  |  | 1,792 |  |  | 7 |  |  | 1,631 |  |  | 37 |  |  | 5,870 |  |  | 55 |  |  | 9,293 |  |  | 1,343,012 |  |  | 1,352,305 |  |  | — |  |
Home equity | 18 |  |  | 1,581 |  |  | 8 |  |  | 468 |  |  | 36 |  |  | 2,566 |  |  | 62 |  |  | 4,615 |  |  | 1,096,439 |  |  | 1,101,054 |  |  | — |  |
Other consumer (1) | 237 |  |  | 217 |  |  | 3 |  |  | 1 |  |  | 12 |  |  | 57 |  |  | 252 |  |  | 275 |  |  | 22,784 |  |  | 23,059 |  |  | 1 |  |
Total | 274 |  |  | $ | 4,255 |  |  | 30 |  |  | $ | 14,432 |  |  | 107 |  |  | $ | 10,902 |  |  | 411 |  |  | $ | 29,589 |  |  | $ | 9,375,604 |  |  | $ | 9,405,193 |  |  | $ | 1 |  |
| December 31, 2019 |
| 30-59 days |  | 60-89 days |  | 90 days or more |  | Total Past Due |  |  |  | Total Financing Receivables |  | Recorded Investment >90 Days and Accruing |
| Number of Loans |  | Principal Balance |  | Number of Loans |  | Principal Balance |  | Number of Loans |  | Principal Balance |  | Number of Loans |  | Principal Balance |  | Current |  |
| (Dollars in thousands) |
Loan Portfolio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | 1 |  |  | $ | 253 |  |  | 2 |  |  | $ | 323 |  |  | 5 |  |  | $ | 760 |  |  | 8 |  |  | $ | 1,336 |  |  | $ | 1,393,700 |  |  | $ | 1,395,036 |  |  | $ | — |  |
Commercial real estate | 7 |  |  | 1,690 |  |  | 1 |  |  | 194 |  |  | 8 |  |  | 2,038 |  |  | 16 |  |  | 3,922 |  |  | 3,998,437 |  |  | 4,002,359 |  |  | 218 |  | (2) |
Commercial construction | 1 |  |  | 560 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1 |  |  | 560 |  |  | 546,733 |  |  | 547,293 |  |  | — |  |
Small business | 11 |  |  | 837 |  |  | 3 |  |  | 15 |  |  | 6 |  |  | 115 |  |  | 20 |  |  | 967 |  |  | 173,530 |  |  | 174,497 |  |  | — |  |
Residential real estate | 17 |  |  | 2,237 |  |  | 17 |  |  | 3,055 |  |  | 38 |  |  | 7,020 |  |  | 72 |  |  | 12,312 |  |  | 1,578,257 |  |  | 1,590,569 |  |  | 1,652 |  | (2) |
Home equity | 23 |  |  | 1,689 |  |  | 8 |  |  | 524 |  |  | 40 |  |  | 3,854 |  |  | 71 |  |  | 6,067 |  |  | 1,127,731 |  |  | 1,133,798 |  |  | 265 |  | (2) |
Other consumer (1) | 387 |  |  | 245 |  |  | 12 |  |  | 44 |  |  | 16 |  |  | 32 |  |  | 415 |  |  | 321 |  |  | 29,766 |  |  | 30,087 |  |  | 22 |  |
Total | 447 |  |  | $ | 7,511 |  |  | 43 |  |  | $ | 4,155 |  |  | 113 |  |  | $ | 13,819 |  |  | 603 |  |  | $ | 25,485 |  |  | $ | 8,848,154 |  |  | $ | 8,873,639 |  |  | $ | 2,157 |  |
(1)Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances. (2)Represents purchased credit impaired ("PCI") loans that were accruing interest due to expectations of future cash collections.
Summary of Troubled Debt Restructuring and other pertinent information | The following table shows the Company’s total TDRs and other pertinent information as of the dates indicated:
|  | September 30, 2020 |  | December 31, 2019
| (Dollars in thousands)
TDRs on accrual status |  | $ | 17,521 |  |  | $ | 19,599 |
TDRs on nonaccrual |  | 23,810 |  |  | 24,766 |
Total TDRs |  | $ | 41,331 |  |  | $ | 44,365 |
Amount of specific reserves associated with TDRs |  | n/a |  | $ | 855 |
Additional commitments to lend to a borrower who has been a party to a TDR |  | $ | 158 |  |  | $ | 63 |
Change in investment recorded subsequent to modifications | The following table shows the troubled debt restructurings which occurred during the periods indicated and the change in the recorded investment subsequent to the modifications occurring:
| Three Months Ended |  | Nine Months Ended
| September 30, 2020 |  | September 30, 2020
| Number of Contracts |  | Pre-Modification Outstanding Recorded Investment |  | Post-Modification Outstanding Recorded Investment |  | Number of Contracts |  | Pre-Modification Outstanding Recorded Investment |  | Post-Modification Outstanding Recorded Investment
| (Dollars in thousands)
Troubled debt restructurings |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | 2 |  |  | $ | 83 |  |  | $ | 83 |  |  | 5 |  |  | $ | 391 |  |  | $ | 391 |
Commercial real estate | 3 |  |  | 744 |  |  | 744 |  |  | 8 |  |  | 2,518 |  |  | 2,518 |
Small business | — |  |  | — |  |  | — |  |  | 2 |  |  | 112 |  |  | 88 |
Residential real estate | — |  |  | — |  |  | — |  |  | 2 |  |  | 559 |  |  | 642 |
Total | 5 |  |  | $ | 827 |  |  | $ | 827 |  |  | 17 |  |  | $ | 3,580 |  |  | $ | 3,639 |
| Three Months Ended |  | Nine Months Ended
| September 30, 2019 |  | September 30, 2019
| Number of Contracts |  | Pre-Modification Outstanding Recorded Investment |  | Post-Modification Outstanding Recorded Investment |  | Number of Contracts |  | Pre-Modification Outstanding Recorded Investment |  | Post-Modification Outstanding Recorded Investment
| (Dollars in thousands)
Troubled debt restructurings |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | 1 |  |  | $ | 87 |  |  | $ | 87 |  |  | 2 |  |  | $ | 184 |  |  | $ | 184 |
Commercial real estate | 1 |  |  | 133 |  |  | 133 |  |  | 2 |  |  | 283 |  |  | 283 |
Small business | 1 |  |  | 19 |  |  | 19 |  |  | 2 |  |  | 33 |  |  | 33 |
Residential real estate | 1 |  |  | 163 |  |  | 168 |  |  | 1 |  |  | 163 |  |  | 168 |
Home equity | 1 |  |  | 46 |  |  | 46 |  |  | 2 |  |  | 121 |  |  | 121 |
Total | 5 |  |  | $ | 448 |  |  | $ | 453 |  |  | 9 |  |  | $ | 784 |  |  | $ | 789 |
Post modification balance of Troubled Debt Restructuring |
| Three Months Ended |  | Nine Months Ended
| September 30, 2019 |  | September 30, 2019
| Number of Contracts |  | Pre-Modification Outstanding Recorded Investment |  | Post-Modification Outstanding Recorded Investment |  | Number of Contracts |  | Pre-Modification Outstanding Recorded Investment |  | Post-Modification Outstanding Recorded Investment
| (Dollars in thousands)
Troubled debt restructurings |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | 1 |  |  | $ | 87 |  |  | $ | 87 |  |  | 2 |  |  | $ | 184 |  |  | $ | 184 |
Commercial real estate | 1 |  |  | 133 |  |  | 133 |  |  | 2 |  |  | 283 |  |  | 283 |
Small business | 1 |  |  | 19 |  |  | 19 |  |  | 2 |  |  | 33 |  |  | 33 |
Residential real estate | 1 |  |  | 163 |  |  | 168 |  |  | 1 |  |  | 163 |  |  | 168 |
Home equity | 1 |  |  | 46 |  |  | 46 |  |  | 2 |  |  | 121 |  |  | 121 |
Total | 5 |  |  | $ | 448 |  |  | $ | 453 |  |  | 9 |  |  | $ | 784 |  |  | $ | 789 |
The following table shows the Company’s post-modification balance of TDRs listed by type of modification for the periods indicated:
| Three Months Ended |  | Nine Months Ended
| September 30 |  | September 30
| 2020 |  | 2019 |  | 2020 |  | 2019
| (Dollars in thousands)
Adjusted interest rate | 218 |  |  | — |  |  | $ | 822 |  |  | $ | 150 |
Court ordered concession | — |  |  | — |  |  | 25 |  |  | 75 |
Extended maturity | 609 |  |  | 453 |  |  | 2,792 |  |  | 606 |
Total | 827 |  |  | 453 |  |  | $ | 3,639 |  |  | $ | 831 |
Impaired loans by loan portfolio | The table below sets forth information regarding the Company’s impaired loans by loan portfolio at the date indicated:
| December 31, 2019
| Recorded Investment |  | Unpaid Principal Balance |  | Related Allowance
| (Dollars in thousands)
With no related allowance recorded |  |  |  |  |
Commercial and industrial | $ | 23,786 |  |  | $ | 34,970 |  |  | $ | — |
Commercial real estate | 6,213 |  |  | 12,101 |  |  | — |
Small business | 469 |  |  | 484 |  |  | — |
Residential real estate | 4,976 |  |  | 5,123 |  |  | — |
Home equity | 3,764 |  |  | 3,893 |  |  | — |
Other consumer | 34 |  |  | 34 |  |  | — |
Subtotal | 39,242 |  |  | 56,605 |  |  | — |
With an allowance recorded |  |  |  |  |
Commercial and industrial | $ | 670 |  |  | $ | 670 |  |  | $ | 126 |
Commercial real estate | 2,124 |  |  | 2,124 |  |  | 48 |
Small business | 68 |  |  | 105 |  |  | 8 |
Residential real estate | 6,252 |  |  | 7,163 |  |  | 637 |
Home equity | 1,184 |  |  | 1,382 |  |  | 156 |
Other consumer | 88 |  |  | 91 |  |  | 5 |
Subtotal | 10,386 |  |  | 11,535 |  |  | 980 |
Total | $ | 49,628 |  |  | $ | 68,140 |  |  | $ | 980 |
Interest income recognized on impaired loans | The following table sets forth information regarding interest income recognized on impaired loans, by portfolio, for the periods indicated:
| Three Months Ended |  | Nine Months Ended
| September 30, 2019 |  | September 30, 2019
| Average Recorded Investment |  | Interest Income Recognized |  | Average Recorded Investment |  | Interest Income Recognized
| (Dollars in thousands)
With no related allowance recorded |  |  |  |  |  |  |
Commercial and industrial | $ | 25,694 |  |  | $ | 35 |  |  | $ | 27,937 |  |  | $ | 108 |
Commercial real estate | 12,987 |  |  | 149 |  |  | 13,261 |  |  | 478 |
Small business | 235 |  |  | 3 |  |  | 266 |  |  | 10 |
Residential real estate | 5,031 |  |  | 57 |  |  | 5,061 |  |  | 175 |
Home equity | 4,417 |  |  | 50 |  |  | 4,479 |  |  | 151 |
Other consumer | 39 |  |  | 1 |  |  | 43 |  |  | 2 |
Subtotal | 48,403 |  |  | 295 |  |  | 51,047 |  |  | 924 |
With an allowance recorded |  |  |  |  |  |  |
Commercial and industrial | $ | 353 |  |  | $ | 4 |  |  | $ | 360 |  |  | $ | 13 |
Commercial real estate | 1,402 |  |  | 20 |  |  | 1,415 |  |  | 60 |
Small business | 92 |  |  | — |  |  | 95 |  |  | 2 |
Residential real estate | 6,047 |  |  | 61 |  |  | 6,115 |  |  | 179 |
Home equity | 959 |  |  | 11 |  |  | 972 |  |  | 33 |
Other consumer | 107 |  |  | 1 |  |  | 116 |  |  | 3 |
Subtotal | 8,960 |  |  | 97 |  |  | 9,073 |  |  | 290 |
Total | $ | 57,363 |  |  | $ | 392 |  |  | $ | 60,120 |  |  | $ | 1,214 |
Certain Loans Acquired In Transfer Accounted For As Debt Securities Acquired During Period | The following table displays certain information pertaining to PCI loans at the date indicated:
|  | December 31, 2019
|  | (Dollars in thousands)
Outstanding balance |  | $ | 18,358 |
Carrying amount |  | $ | 14,856 |
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule | The following table summarizes activity in the accretable yield for the PCI loan portfolio for the periods indicated:
|  | Three Months Ended September 30 |  | Nine Months Ended September 30
|  | 2019 |  | 2019
|  | (Dollars in thousands)
Beginning balance |  | $ | 2,238 |  |  | $ | 1,191 |
Acquisition |  | — |  |  | 1,464 |
Accretion |  | (412) |  |  | (1,215) |
Other change in expected cash flows (1) |  | 237 |  |  | 623 |
Reclassification from nonaccretable difference for loans which have paid off |  | 227 |  |  | 227 |
Ending balance |  | $ | 2,290 |  |  | $ | 2,290 |
(1) Represents changes in cash flows expected to be collected and resulting in increased interest income as a prospective yield adjustment over the remaining life of the loan(s).

X
- Definition Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Table Text Block] + References No definition available. + Details
Name: | indb_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAccretableYieldMovementScheduleTableTextBlock
Namespace Prefix: | indb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Certain Loans Acquired In Transfer Accounted For As Debt Securities Acquired During Period [Table Text Block] + References No definition available. + Details
Name: | indb_CertainLoansAcquiredInTransferAccountedForAsDebtSecuritiesAcquiredDuringPeriodTableTextBlock
Namespace Prefix: | indb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables by credit quality indicators for consumer and residential portfolios. The credit quality indicator is a statistic about the credit quality of financing receivables which include credit risk scores and loan-to value ratios. + References No definition available. + Details
Name: | indb_FinancingReceivableCreditQualityIndicatorsForConsumerAndResidentialPortfolioTableTextBlock
Namespace Prefix: | indb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition [Table Text Block] for Foreclosed Residential Real Estate Property [Table] + References No definition available. + Details
Name: | indb_ForeclosedResidentialRealEstatePropertyTableTextBlock
Namespace Prefix: | indb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of interest income recognized on impaired loans. + References No definition available. + Details
Name: | indb_ScheduleOfInterestIncomeRecognizedOnImpairedLoansTableTextBlock
Namespace Prefix: | indb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition [Table Text Block] for Tabular disclosure of financing receivables bifurcated by type of impairment evaluation + References No definition available. + Details
Name: | indb_TabulardisclosureoffinancingreceivablesbifurcatedbytypeofimpairmentevaluationTableTextBlockTableTextBlock
Namespace Prefix: | indb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Troubled debt restructurings on financing receivables post modification + References No definition available. + Details
Name: | indb_TroubledDebtRestructuringsOnFinancingReceivablesPostModificationsTableTextBlock
Namespace Prefix: | indb_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953659-111524 + Details
Name: | us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of impaired financing receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of aging analysis for financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 + Details
Name: | us-gaap_PastDueFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of troubled debt restructurings in the periods following the restructuring, including: (1) a description of the portion of the recorded [restructured] debt which is contingently payable based on the occurrence of future events or circumstances; (2) the dollar amount of the portion of the recorded [restructured] debt which is contingently payable based on the occurrence of future events or circumstances; and (3) a description of the circumstance, events, or conditions that would cause payments to occur or the creditor to forgive the contingent portion of recorded debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 60 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6402221&loc=d3e15765-112638 + Details
Name: | us-gaap_ScheduleOfDebtorTroubledDebtRestructuringSubsequentPeriodsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919258-210447 + Details
Name: | us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
Name: | us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration