XML 44 R25.htm IDEA: XBRL DOCUMENT
v3.22.1

Loans, Allowance for Credit Losses and Credit Quality (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2022
Receivables [Abstract] |
Financing Receivable, Allowance for Credit Loss [Table Text Block] | 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 March 31, 2022
| (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 | $ | 14,402 |  |  | $ | 83,486 |  |  | $ | 12,316 |  |  | $ | 3,508 |  |  | $ | 14,484 |  |  | $ | 17,986 |  |  | $ | 740 |  |  | $ | 146,922 |
Charge-offs | — |  |  | — |  |  | — |  |  | (48) |  |  | — |  |  | (24) |  |  | (634) |  |  | (706) |
Recoveries | 13 |  |  | 3 |  |  | — |  |  | 26 |  |  | — |  |  | 26 |  |  | 234 |  |  | 302 |
(Release of) provision for credit losses | (246) |  |  | 947 |  |  | (449) |  |  | (327) |  |  | 3,904 |  |  | (6,238) |  |  | 409 |  |  | (2,000) |
Ending balance (1) | $ | 14,169 |  |  | $ | 84,436 |  |  | $ | 11,867 |  |  | $ | 3,159 |  |  | $ | 18,388 |  |  | $ | 11,750 |  |  | $ | 749 |  |  | $ | 144,518 |
| Three Months Ended March 31, 2021
| (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 | $ | 21,086 |  |  | $ | 45,009 |  |  | $ | 5,397 |  |  | $ | 5,095 |  |  | $ | 14,275 |  |  | $ | 22,060 |  |  | $ | 470 |  |  | $ | 113,392 |
Charge-offs | (3,331) |  |  | — |  |  | — |  |  | (66) |  |  | — |  |  | — |  |  | (289) |  |  | (3,686) |
Recoveries | 64 |  |  | 57 |  |  | — |  |  | 11 |  |  | 1 |  |  | 13 |  |  | 197 |  |  | 343 |
(Release of) provision for credit losses | 2,388 |  |  | (718) |  |  | (129) |  |  | (1,419) |  |  | (1,320) |  |  | (1,357) |  |  | 55 |  |  | (2,500) |
Ending balance (1) | $ | 20,207 |  |  | $ | 44,348 |  |  | $ | 5,268 |  |  | $ | 3,621 |  |  | $ | 12,956 |  |  | $ | 20,716 |  |  | $ | 433 |  |  | $ | 107,549 |
(1)Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $39.4 million and $33.4 million as of March 31, 2022 and March 31, 2021, respectively.
Financing Receivable Credit Quality Indicators [Table Text Block] | The following table details the amortized cost balances of the Company's loan portfolios, presented by credit quality indicator and origination year as of the dates indicated below:
| March 31, 2022
| 2022 |  | 2021 |  | 2020 |  | 2019 |  | 2018 |  | Prior |  | Revolving Loans |  | Revolving converted to Term |  | Total (1)
| (Dollars in thousands)
Commercial and industrial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass (2) | $ | 138,642 |  |  | $ | 288,516 |  |  | $ | 159,051 |  |  | $ | 85,497 |  |  | $ | 105,651 |  |  | $ | 30,082 |  |  | $ | 741,200 |  |  | $ | — |  |  | $ | 1,548,639 |
Potential weakness | 629 |  |  | 746 |  |  | 1,402 |  |  | 1,423 |  |  | 88 |  |  | 1,113 |  |  | 4,097 |  |  | — |  |  | 9,498 |
Definite weakness - loss unlikely | 403 |  |  | 1,253 |  |  | — |  |  | 57 |  |  | 420 |  |  | 2,684 |  |  | 3,238 |  |  | — |  |  | 8,055 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial and industrial | $ | 139,674 |  |  | $ | 290,515 |  |  | $ | 160,453 |  |  | $ | 86,977 |  |  | $ | 106,159 |  |  | $ | 33,879 |  |  | $ | 748,535 |  |  | $ | — |  |  | $ | 1,566,192 |
Commercial real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 226,907 |  |  | $ | 1,548,212 |  |  | $ | 1,254,460 |  |  | $ | 867,980 |  |  | $ | 830,148 |  |  | $ | 2,431,434 |  |  | $ | 135,980 |  |  | $ | 522 |  |  | $ | 7,295,643 |
Potential weakness | 10,059 |  |  | 51,223 |  |  | 92,984 |  |  | 43,560 |  |  | 83,195 |  |  | 210,418 |  |  | 13,619 |  |  | — |  |  | 505,058 |
Definite weakness - loss unlikely | 145 |  |  | 20,031 |  |  | 4,081 |  |  | 3,237 |  |  | 412 |  |  | 69,009 |  |  | — |  |  | — |  |  | 96,915 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial real estate | $ | 237,111 |  |  | $ | 1,619,466 |  |  | $ | 1,351,525 |  |  | $ | 914,777 |  |  | $ | 913,755 |  |  | $ | 2,710,861 |  |  | $ | 149,599 |  |  | $ | 522 |  |  | $ | 7,897,616 |
Commercial construction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 82,805 |  |  | $ | 400,932 |  |  | $ | 440,129 |  |  | $ | 100,066 |  |  | $ | 30,145 |  |  | $ | 34,952 |  |  | $ | 34,416 |  |  | $ | — |  |  | $ | 1,123,445 |
Potential weakness | — |  |  | — |  |  | 3,005 |  |  | — |  |  | — |  |  | 12,935 |  |  | — |  |  | — |  |  | 15,940 |
Definite weakness - loss unlikely | — |  |  | 14,560 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 14,560 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial construction | $ | 82,805 |  |  | $ | 415,492 |  |  | $ | 443,134 |  |  | $ | 100,066 |  |  | $ | 30,145 |  |  | $ | 47,887 |  |  | $ | 34,416 |  |  | $ | — |  |  | $ | 1,153,945 |
Small business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 14,959 |  |  | $ | 52,037 |  |  | $ | 35,973 |  |  | $ | 19,540 |  |  | $ | 12,136 |  |  | $ | 24,449 |  |  | $ | 37,719 |  |  | $ | — |  |  | $ | 196,813 |
Potential weakness | — |  |  | 183 |  |  | 435 |  |  | 376 |  |  | 196 |  |  | 277 |  |  | 761 |  |  | — |  |  | 2,228 |
Definite weakness - loss unlikely | — |  |  | — |  |  | 601 |  |  | 20 |  |  | 7 |  |  | 283 |  |  | 453 |  |  | — |  |  | 1,364 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total small business | $ | 14,959 |  |  | $ | 52,220 |  |  | $ | 37,009 |  |  | $ | 19,936 |  |  | $ | 12,339 |  |  | $ | 25,009 |  |  | $ | 38,933 |  |  | $ | — |  |  | $ | 200,405 |
Residential real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 177,524 |  |  | $ | 446,985 |  |  | $ | 209,293 |  |  | $ | 106,746 |  |  | $ | 111,601 |  |  | $ | 650,555 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,702,704 |
Default | — |  |  | — |  |  | 392 |  |  | — |  |  | 999 |  |  | 1,950 |  |  | — |  |  | — |  |  | 3,341 |
Total residential real estate | $ | 177,524 |  |  | $ | 446,985 |  |  | $ | 209,685 |  |  | $ | 106,746 |  |  | $ | 112,600 |  |  | $ | 652,505 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,706,045 |
Home equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 13,376 |  |  | $ | 64,981 |  |  | $ | 61,198 |  |  | $ | 35,075 |  |  | $ | 31,458 |  |  | $ | 137,315 |  |  | $ | 678,867 |  |  | $ | 1,519 |  |  | $ | 1,023,789 |
Default | — |  |  | — |  |  | — |  |  | 122 |  |  | — |  |  | 64 |  |  | 1,840 |  |  | — |  |  | 2,026 |
Total home equity | $ | 13,376 |  |  | $ | 64,981 |  |  | $ | 61,198 |  |  | $ | 35,197 |  |  | $ | 31,458 |  |  | $ | 137,379 |  |  | $ | 680,707 |  |  | $ | 1,519 |  |  | $ | 1,025,815 |
Other consumer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 142 |  |  | $ | 2,964 |  |  | $ | 2,469 |  |  | $ | 1,978 |  |  | $ | 695 |  |  | $ | 4,669 |  |  | $ | 17,074 |  |  | $ | — |  |  | $ | 29,991 |
Default | — |  |  | 9 |  |  | 4 |  |  | — |  |  | — |  |  | 3 |  |  | 2 |  |  | — |  |  | 18 |
Total other consumer | $ | 142 |  |  | $ | 2,973 |  |  | $ | 2,473 |  |  | $ | 1,978 |  |  | $ | 695 |  |  | $ | 4,672 |  |  | $ | 17,076 |  |  | $ | — |  |  | $ | 30,009 |
Total | $ | 665,591 |  |  | $ | 2,892,632 |  |  | $ | 2,265,477 |  |  | $ | 1,265,677 |  |  | $ | 1,207,151 |  |  | $ | 3,612,192 |  |  | $ | 1,669,266 |  |  | $ | 2,041 |  |  | $ | 13,580,027 |
| March 31, 2021
| 2021 |  | 2020 |  | 2019 |  | 2018 |  | 2017 |  | Prior |  | Revolving Loans |  | Revolving converted to Term |  | Total (1)
| (Dollars in thousands)
Commercial and industrial |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass (2) | $ | 420,682 |  |  | $ | 724,577 |  |  | $ | 127,454 |  |  | $ | 88,970 |  |  | $ | 25,737 |  |  | $ | 27,123 |  |  | $ | 589,448 |  |  | $ | — |  |  | $ | 2,003,991 |
Potential weakness | 3,424 |  |  | 14,991 |  |  | 2,636 |  |  | 2,148 |  |  | 4,288 |  |  | 3,205 |  |  | 12,252 |  |  | — |  |  | 42,944 |
Definite weakness - loss unlikely | 17,912 |  |  | 663 |  |  | 1,116 |  |  | 1,327 |  |  | 2,768 |  |  | 482 |  |  | 6,927 |  |  | — |  |  | 31,195 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 143 |  |  | 8,398 |  |  | — |  |  | 8,541 |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial and industrial | $ | 442,018 |  |  | $ | 740,231 |  |  | $ | 131,206 |  |  | $ | 92,445 |  |  | $ | 32,793 |  |  | $ | 30,953 |  |  | $ | 617,025 |  |  | $ | — |  |  | $ | 2,086,671 |
Commercial real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 214,573 |  |  | $ | 1,043,424 |  |  | $ | 687,959 |  |  | $ | 432,728 |  |  | $ | 524,194 |  |  | $ | 966,331 |  |  | $ | 16,196 |  |  | $ | — |  |  | $ | 3,885,405 |
Potential weakness | 390 |  |  | 29,218 |  |  | 53,849 |  |  | 31,274 |  |  | 18,981 |  |  | 86,160 |  |  | 13,612 |  |  | — |  |  | 233,484 |
Definite weakness - loss unlikely | 3,590 |  |  | 22,536 |  |  | 3,754 |  |  | 3,474 |  |  | 9,892 |  |  | 15,482 |  |  | — |  |  | — |  |  | 58,728 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial real estate | $ | 218,553 |  |  | $ | 1,095,178 |  |  | $ | 745,562 |  |  | $ | 467,476 |  |  | $ | 553,067 |  |  | $ | 1,067,973 |  |  | $ | 29,808 |  |  | $ | — |  |  | $ | 4,177,617 |
Commercial construction |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 28,323 |  |  | $ | 239,954 |  |  | $ | 142,076 |  |  | $ | 28,189 |  |  | $ | 23,313 |  |  | $ | 6,628 |  |  | $ | 19,934 |  |  | $ | — |  |  | $ | 488,417 |
Potential weakness | — |  |  | 17,544 |  |  | 9,691 |  |  | — |  |  | — |  |  | — |  |  | 190 |  |  | — |  |  | 27,425 |
Definite weakness - loss unlikely | — |  |  | — |  |  | — |  |  | 520 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 520 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total commercial construction | $ | 28,323 |  |  | $ | 257,498 |  |  | $ | 151,767 |  |  | $ | 28,709 |  |  | $ | 23,313 |  |  | $ | 6,628 |  |  | $ | 20,124 |  |  | $ | — |  |  | $ | 516,362 |
Small business |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 10,307 |  |  | $ | 41,418 |  |  | $ | 25,817 |  |  | $ | 17,750 |  |  | $ | 12,624 |  |  | $ | 29,309 |  |  | $ | 33,658 |  |  | $ | — |  |  | $ | 170,883 |
Potential weakness | — |  |  | — |  |  | 389 |  |  | 204 |  |  | 10 |  |  | 202 |  |  | 634 |  |  | — |  |  | 1,439 |
Definite weakness - loss unlikely | — |  |  | 677 |  |  | 51 |  |  | 59 |  |  | 17 |  |  | 301 |  |  | 758 |  |  | — |  |  | 1,863 |
Partial loss probable | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 26 |  |  | — |  |  | 26 |
Definite loss | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total small business | $ | 10,307 |  |  | $ | 42,095 |  |  | $ | 26,257 |  |  | $ | 18,013 |  |  | $ | 12,651 |  |  | $ | 29,812 |  |  | $ | 35,076 |  |  | $ | — |  |  | $ | 174,211 |
Residential real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 80,657 |  |  | $ | 212,891 |  |  | $ | 126,359 |  |  | $ | 133,150 |  |  | $ | 130,580 |  |  | $ | 554,848 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,238,485 |
Default | — |  |  | — |  |  | — |  |  | 427 |  |  | — |  |  | 2,877 |  |  | — |  |  | — |  |  | 3,304 |
Total residential real estate | $ | 80,657 |  |  | $ | 212,891 |  |  | $ | 126,359 |  |  | $ | 133,577 |  |  | $ | 130,580 |  |  | $ | 557,725 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,241,789 |
Home equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 23,583 |  |  | $ | 77,497 |  |  | $ | 51,398 |  |  | $ | 46,648 |  |  | $ | 48,132 |  |  | $ | 140,376 |  |  | $ | 636,881 |  |  | $ | 1,762 |  |  | $ | 1,026,277 |
Default | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 210 |  |  | 2,008 |  |  | — |  |  | 2,218 |
Total home equity | $ | 23,583 |  |  | $ | 77,497 |  |  | $ | 51,398 |  |  | $ | 46,648 |  |  | $ | 48,132 |  |  | $ | 140,586 |  |  | $ | 638,889 |  |  | $ | 1,762 |  |  | $ | 1,028,495 |
Other consumer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pass | $ | 46 |  |  | $ | 540 |  |  | $ | 326 |  |  | $ | 146 |  |  | $ | 620 |  |  | $ | 6,800 |  |  | $ | 12,939 |  |  | $ | — |  |  | $ | 21,417 |
Default | — |  |  | — |  |  | — |  |  | — |  |  | 15 |  |  | 111 |  |  | 3 |  |  | — |  |  | 129 |
Total other consumer | $ | 46 |  |  | $ | 540 |  |  | $ | 326 |  |  | $ | 146 |  |  | $ | 635 |  |  | $ | 6,911 |  |  | $ | 12,942 |  |  | $ | — |  |  | $ | 21,546 |
Total | $ | 803,487 |  |  | $ | 2,425,930 |  |  | $ | 1,232,875 |  |  | $ | 787,014 |  |  | $ | 801,171 |  |  | $ | 1,840,588 |  |  | $ | 1,353,864 |  |  | $ | 1,762 |  |  | $ | 9,246,691 |
(1)Loan origination dates in the tables above reflect the original origination date, or the date of a material modification of a previously originated loan. (2)Loans originated as part of the Paycheck Protection Program ("PPP") established by the CARES Act are included within commercial and industrial under the 2021 and 2020 vintage year and "pass" category as these loans are 100% guaranteed by the U.S. Government. Outstanding PPP loans totaled $99.6 million and $846.3 million as of March 31, 2022 and 2021, respectively.
Foreclosed Residential Real Estate Property [Table Text Block] | The following table shows information regarding foreclosed residential real estate property at the dates indicated:
| March 31, 2022 |  | December 31, 2021
| (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 | $ | 2,287 |  |  | $ | 1,426 |
Financing Receivable Credit Quality Indicators For Consumer And Residential Portfolio Table Text Block | The following table shows the weighted average FICO scores and the weighted average combined LTV ratios at the dates indicated below:
| March 31 2022 |  | December 31 2021
Residential real estate portfolio |  |  |
FICO score (re-scored)(1) | 752 |  |  | 749 |
LTV (re-valued)(2) | 54.5 | % |  | 54.4 | %
Home equity portfolio |  |  |
FICO score (re-scored)(1) | 773 |  |  | 772 |
LTV (re-valued)(2)(3) | 42.3 | % |  | 42.4 | %
(1)The average FICO scores at March 31, 2022 are based upon rescores from March 2022, as available for previously originated loans, or origination score data for loans booked in March 2022. The average FICO scores at December 31, 2021 were based upon rescores available from December 2021, as available for previously originated loans, or origination score data for loans booked in December 2021. (2)The combined LTV ratios for March 31, 2022 are based upon updated automated valuations as of February 2022, when available, and/or the most current valuation data available. The combined LTV ratios for December 31, 2021 were based upon updated automated valuations as of November 2021, 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.
Financing Receivable, Past Due [Table Text Block] | The following tables show the age analysis of past due financing receivables as of the dates indicated:
| March 31, 2022
| 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 | 4 |  |  | $ | 276 |  |  | 4 |  |  | $ | 3,399 |  |  | — |  |  | $ | — |  |  | 8 |  |  | $ | 3,675 |  |  | $ | 1,562,517 |  |  | $ | 1,566,192 |  |  | $ | — |
Commercial real estate | 10 |  |  | 6,530 |  |  | 3 |  |  | 7,897 |  |  | 2 |  |  | 7,009 |  |  | 15 |  |  | 21,436 |  |  | 7,876,180 |  |  | 7,897,616 |  |  | — |
Commercial construction | 3 |  |  | 2,592 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 3 |  |  | 2,592 |  |  | 1,151,353 |  |  | 1,153,945 |  |  | — |
Small business | 7 |  |  | 85 |  |  | 2 |  |  | 6 |  |  | 2 |  |  | 8 |  |  | 11 |  |  | 99 |  |  | 200,306 |  |  | 200,405 |  |  | — |
Residential real estate | 9 |  |  | 2,890 |  |  | 6 |  |  | 1,546 |  |  | 73 |  |  | 3,341 |  |  | 88 |  |  | 7,777 |  |  | 1,698,268 |  |  | 1,706,045 |  |  | — |
Home equity | 11 |  |  | 834 |  |  | 5 |  |  | 81 |  |  | 23 |  |  | 2,026 |  |  | 39 |  |  | 2,941 |  |  | 1,022,874 |  |  | 1,025,815 |  |  | — |
Other consumer (1) | 384 |  |  | 541 |  |  | 18 |  |  | 157 |  |  | 8 |  |  | 18 |  |  | 410 |  |  | 716 |  |  | 29,293 |  |  | 30,009 |  |  | — |
Total | 428 |  |  | $ | 13,748 |  |  | 38 |  |  | $ | 13,086 |  |  | 108 |  |  | $ | 12,402 |  |  | 574 |  |  | $ | 39,236 |  |  | $ | 13,540,791 |  |  | $ | 13,580,027 |  |  | $ | — |
| December 31, 2021
| 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 | 7 |  |  | $ | 143 |  |  | 2 |  |  | $ | 252 |  |  | 2 |  |  | $ | 24 |  |  | 11 |  |  | $ | 419 |  |  | $ | 1,562,860 |  |  | $ | 1,563,279 |  |  | $ | — |
Commercial real estate | 15 |  |  | 32,845 |  |  | — |  |  | — |  |  | 4 |  |  | 1,339 |  |  | 19 |  |  | 34,184 |  |  | 7,958,160 |  |  | 7,992,344 |  |  | — |
Commercial construction | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,165,457 |  |  | 1,165,457 |  |  | — |
Small business | 11 |  |  | 136 |  |  | 6 |  |  | 53 |  |  | 4 |  |  | 24 |  |  | 21 |  |  | 213 |  |  | 192,976 |  |  | 193,189 |  |  | — |
Residential real estate | 12 |  |  | 2,709 |  |  | 5 |  |  | 714 |  |  | 76 |  |  | 3,922 |  |  | 93 |  |  | 7,345 |  |  | 1,597,341 |  |  | 1,604,686 |  |  | — |
Home equity | 15 |  |  | 1,375 |  |  | 6 |  |  | 381 |  |  | 21 |  |  | 1,671 |  |  | 42 |  |  | 3,427 |  |  | 1,036,184 |  |  | 1,039,611 |  |  | — |
Other consumer (1) | 458 |  |  | 719 |  |  | 41 |  |  | 277 |  |  | 16 |  |  | 112 |  |  | 515 |  |  | 1,108 |  |  | 27,612 |  |  | 28,720 |  |  | — |
Total | 518 |  |  | $ | 37,927 |  |  | 60 |  |  | $ | 1,677 |  |  | 123 |  |  | $ | 7,092 |  |  | 701 |  |  | $ | 46,696 |  |  | $ | 13,540,590 |  |  | $ | 13,587,286 |  |  | $ | — |
(1)Other consumer portfolio is inclusive of deposit account overdrafts recorded as loan balances.
Financing Receivable, Nonaccrual [Table Text Block] | The following table shows information regarding nonaccrual loans as of the dates indicated:
| Nonaccrual Balances
| March 31, 2022 |  | December 31, 2021
| With Allowance for Credit Losses |  | Without Allowance for Credit Losses |  | Total |  | With Allowance for Credit Losses |  | Without Allowance for Credit Losses |  | Total
| (Dollars in thousands)
Commercial and industrial | $ | 3,498 |  |  | $ | 19 |  |  | $ | 3,517 |  |  | $ | 3,420 |  |  | $ | 19 |  |  | $ | 3,439 |
Commercial real estate | 15,835 |  |  | 24,635 |  |  | 40,470 |  |  | 10,870 |  |  | — |  |  | 10,870 |
Small business | 20 |  |  | — |  |  | 20 |  |  | 44 |  |  | — |  |  | 44 |
Residential real estate | 7,861 |  |  | 596 |  |  | 8,457 |  |  | 8,580 |  |  | 602 |  |  | 9,182 |
Home equity | 3,761 |  |  | — |  |  | 3,761 |  |  | 3,781 |  |  | — |  |  | 3,781 |
Other consumer | 393 |  |  | — |  |  | 393 |  |  | 504 |  |  | — |  |  | 504 |
Total nonaccrual loans (1) | $ | 31,368 |  |  | $ | 25,250 |  |  | $ | 56,618 |  |  | $ | 27,199 |  |  | $ | 621 |  |  | $ | 27,820 |
(1)Included in these amounts were $2.0 million of nonaccruing TDRs at both March 31, 2022 and December 31, 2021, respectively.
Financing Receivable, Troubled Debt Restructuring [Table Text Block] | The following table shows the Company’s total TDRs and other pertinent information as of the dates indicated:
|  | March 31, 2022 |  | December 31, 2021
| (Dollars in thousands)
TDRs on accrual status |  | $ | 13,288 |  |  | $ | 14,635 |
TDRs on nonaccrual |  | 1,972 |  |  | 1,993 |
Total TDRs |  | $ | 15,260 |  |  | $ | 16,628 |
Additional commitments to lend to a borrower who has been a party to a TDR |  | $ | 174 |  |  | $ | 190 |
Schedule of Debtor Troubled Debt Restructuring, Subsequent Periods [Table Text Block] | The following table shows the TDRs which occurred during the three months ended March 31, 2021 and the change in the recorded investment subsequent to the modifications occurring:
| Number of Contracts |  | Pre-Modification Outstanding Recorded Investment |  | Post-Modification Outstanding Recorded Investment |  |  |  |  |  |
| (Dollars in thousands)
Troubled debt restructurings |  |  |  |  |  |  |  |  |  |  |
Commercial and industrial | 1 |  |  | $ | 14,148 |  |  | $ | 14,148 |  |  |  |  |  |  |
Commercial real estate | 5 |  |  | 3,964 |  |  | 3,964 |  |  |  |  |  |  |
Small business | 1 |  |  | 100 |  |  | 100 |  |  |  |  |  |  |
Total (1) | 7 |  |  | $ | 18,212 |  |  | $ | 18,212 |  |  |  |  |  |  |
(1)The pre-modification and post-modification balances represent the legal principal balance of the loan. During the three months ended March 31, 2021, there were two relationships amounting to $14.3 million that related to additional modifications on previously existing TDRs.
Troubled Debt Restructurings On Financing Receivables Post Modifications Table Text Block | The following table shows the Company’s post-modification balance of TDRs listed by type of modification for the three months ended March 31, 2021:
|  |  |  |  |  |  | Post-Modification Balance of TDRs
|  |  |  |  |  |  | (Dollars in thousands)
Combination rate and maturity |  |  |  |  |  |  | 14,148 |
Extended maturity |  |  |  |  |  |  | 4,064 |
Total |  |  |  |  |  |  | $ | 18,212 |

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: | dtr-types: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: | dtr-types: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: | dtr-types: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=123577603&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=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
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=124255953&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=123577603&loc=SL6953659-111524 + Details
Name: | us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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=124255953&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=123577603&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=124267575&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=123577603&loc=d3e5111-111524 + Details
Name: | us-gaap_PastDueFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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: | dtr-types: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=123577603&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=124255953&loc=SL82919258-210447 + Details
Name: | us-gaap_ScheduleOfFinancingReceivablesNonAccrualStatusTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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=123577603&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=123577603&loc=SL6953682-111524 + Details
Name: | us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration