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Loans Receivable, Net (Tables) | 12 Months Ended
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Dec. 31, 2017
Receivables [Abstract] |
Summary of loans receivable | The following table presents loans receivable for each portfolio class of loans:
| At or for the Years ended
(Dollars in thousands) | December 31, 2017 |  | December 31, 2016
Residential real estate loans | $ | 720,728 |  |  | 674,347 |
Commercial loans |  |  |
Real estate | 3,577,139 |  |  | 2,990,141 |
Other commercial | 1,579,353 |  |  | 1,342,250 |
Total | 5,156,492 |  |  | 4,332,391 |
Consumer and other loans |  |  |
Home equity | 457,918 |  |  | 434,774 |
Other consumer | 242,686 |  |  | 242,951 |
Total | 700,604 |  |  | 677,725 |
Loans receivable | 6,577,824 |  |  | 5,684,463 |
Allowance for loan and lease losses | (129,568 | ) |  | (129,572 | )
Loans receivable, net | $ | 6,448,256 |  |  | 5,554,891 |
Net deferred origination (fees) costs included in loans receivable | $ | (2,643 | ) |  | (1,228 | )
Net purchase accounting (discounts) premiums included in loans receivable | $ | (16,325 | ) |  | (12,144 | )
Weighted-average interest rate on loans (tax-equivalent) | 4.81 | % |  | 4.77 | %
Summary of the activity in the ALLL | The following tables summarize the activity in the ALLL by portfolio segment:
| Year ended December 31, 2017
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Balance at beginning of period | $ | 129,572 |  |  | 12,436 |  |  | 65,773 |  |  | 37,823 |  |  | 7,572 |  |  | 5,968 |
Provision for loan losses | 10,824 |  |  | (1,521 | ) |  | 7,152 |  |  | 2,545 |  |  | (1,103 | ) |  | 3,751 |
Charge-offs | (19,331 | ) |  | (199 | ) |  | (6,188 | ) |  | (2,856 | ) |  | (489 | ) |  | (9,599 | )
Recoveries | 8,503 |  |  | 82 |  |  | 1,778 |  |  | 1,791 |  |  | 224 |  |  | 4,628 |
Balance at end of period | $ | 129,568 |  |  | 10,798 |  |  | 68,515 |  |  | 39,303 |  |  | 6,204 |  |  | 4,748 |
| Year ended December 31, 2016
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Balance at beginning of period | $ | 129,697 |  |  | 14,427 |  |  | 67,877 |  |  | 32,525 |  |  | 8,998 |  |  | 5,870 |
Provision for loan losses | 2,333 |  |  | (1,734 | ) |  | (2,686 | ) |  | 5,164 |  |  | (520 | ) |  | 2,109 |
Charge-offs | (11,496 | ) |  | (464 | ) |  | (3,082 | ) |  | (1,778 | ) |  | (1,185 | ) |  | (4,987 | )
Recoveries | 9,038 |  |  | 207 |  |  | 3,664 |  |  | 1,912 |  |  | 279 |  |  | 2,976 |
Balance at end of period | $ | 129,572 |  |  | 12,436 |  |  | 65,773 |  |  | 37,823 |  |  | 7,572 |  |  | 5,968 |
Note 3. Loans Receivable, Net (continued)
| Year ended December 31, 2015
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Balance at beginning of period | $ | 129,753 |  |  | 14,680 |  |  | 67,799 |  |  | 30,891 |  |  | 9,963 |  |  | 6,420 |
Provision for loan losses | 2,284 |  |  | 640 |  |  | (696 | ) |  | 3,030 |  |  | (480 | ) |  | (210 | )
Charge-offs | (7,002 | ) |  | (985 | ) |  | (1,920 | ) |  | (2,322 | ) |  | (809 | ) |  | (966 | )
Recoveries | 4,662 |  |  | 92 |  |  | 2,694 |  |  | 926 |  |  | 324 |  |  | 626 |
Balance at end of period | $ | 129,697 |  |  | 14,427 |  |  | 67,877 |  |  | 32,525 |  |  | 8,998 |  |  | 5,870 |
Summary of recorded investment in loans and the balance in the ALLL | The following tables disclose the recorded investment in loans and the balance in the ALLL by portfolio segment:
| December 31, 2017
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Loans receivable |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 119,994 |  |  | 12,399 |  |  | 77,536 |  |  | 23,032 |  |  | 3,755 |  |  | 3,272 |
Collectively evaluated for impairment | 6,457,830 |  |  | 708,329 |  |  | 3,499,603 |  |  | 1,556,321 |  |  | 454,163 |  |  | 239,414 |
Total loans receivable | $ | 6,577,824 |  |  | 720,728 |  |  | 3,577,139 |  |  | 1,579,353 |  |  | 457,918 |  |  | 242,686 |
ALLL |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 5,223 |  |  | 246 |  |  | 500 |  |  | 3,851 |  |  | 56 |  |  | 570 |
Collectively evaluated for impairment | 124,345 |  |  | 10,552 |  |  | 68,015 |  |  | 35,452 |  |  | 6,148 |  |  | 4,178 |
Total ALLL | $ | 129,568 |  |  | 10,798 |  |  | 68,515 |  |  | 39,303 |  |  | 6,204 |  |  | 4,748 |
| December 31, 2016
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Loans receivable |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 130,263 |  |  | 11,612 |  |  | 85,634 |  |  | 23,950 |  |  | 5,934 |  |  | 3,133 |
Collectively evaluated for impairment | 5,554,200 |  |  | 662,735 |  |  | 2,904,507 |  |  | 1,318,300 |  |  | 428,840 |  |  | 239,818 |
Total loans receivable | $ | 5,684,463 |  |  | 674,347 |  |  | 2,990,141 |  |  | 1,342,250 |  |  | 434,774 |  |  | 242,951 |
ALLL |  |  |  |  |  |  |  |  |  |  |
Individually evaluated for impairment | $ | 6,881 |  |  | 856 |  |  | 922 |  |  | 4,419 |  |  | 296 |  |  | 388 |
Collectively evaluated for impairment | 122,691 |  |  | 11,580 |  |  | 64,851 |  |  | 33,404 |  |  | 7,276 |  |  | 5,580 |
Total ALLL | $ | 129,572 |  |  | 12,436 |  |  | 65,773 |  |  | 37,823 |  |  | 7,572 |  |  | 5,968 |
Summary of the impaired loans | The following tables disclose information related to impaired loans by portfolio segment:
| At or for the Year ended December 31, 2017
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Loans with a specific valuation allowance |  |  |  |  |  |  |  |  |  |  |
Recorded balance | $ | 17,689 |  |  | 2,978 |  |  | 4,545 |  |  | 8,183 |  |  | 186 |  |  | 1,797 |
Unpaid principal balance | 18,400 |  |  | 3,046 |  |  | 4,573 |  |  | 8,378 |  |  | 199 |  |  | 2,204 |
Specific valuation allowance | 5,223 |  |  | 246 |  |  | 500 |  |  | 3,851 |  |  | 56 |  |  | 570 |
Average balance | 18,986 |  |  | 2,928 |  |  | 5,851 |  |  | 8,477 |  |  | 359 |  |  | 1,371 |
Loans without a specific valuation allowance |  |  |  |  |  |  |  |  |  |  |
Recorded balance | 102,305 |  |  | 9,421 |  |  | 72,991 |  |  | 14,849 |  |  | 3,569 |  |  | 1,475 |
Unpaid principal balance | 122,833 |  |  | 10,380 |  |  | 89,839 |  |  | 16,931 |  |  | 4,098 |  |  | 1,585 |
Average balance | 107,945 |  |  | 9,834 |  |  | 76,427 |  |  | 15,129 |  |  | 4,734 |  |  | 1,821 |
Total |  |  |  |  |  |  |  |  |  |  |
Recorded balance | 119,994 |  |  | 12,399 |  |  | 77,536 |  |  | 23,032 |  |  | 3,755 |  |  | 3,272 |
Unpaid principal balance | 141,233 |  |  | 13,426 |  |  | 94,412 |  |  | 25,309 |  |  | 4,297 |  |  | 3,789 |
Specific valuation allowance | 5,223 |  |  | 246 |  |  | 500 |  |  | 3,851 |  |  | 56 |  |  | 570 |
Average balance | 126,931 |  |  | 12,762 |  |  | 82,278 |  |  | 23,606 |  |  | 5,093 |  |  | 3,192 |
| At or for the Year ended December 31, 2016
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Loans with a specific valuation allowance |  |  |  |  |  |  |  |  |  |  |
Recorded balance | $ | 22,128 |  |  | 2,759 |  |  | 9,129 |  |  | 8,814 |  |  | 334 |  |  | 1,092 |
Unpaid principal balance | 22,374 |  |  | 2,825 |  |  | 9,130 |  |  | 8,929 |  |  | 345 |  |  | 1,145 |
Specific valuation allowance | 6,881 |  |  | 856 |  |  | 922 |  |  | 4,419 |  |  | 296 |  |  | 388 |
Average balance | 26,745 |  |  | 4,942 |  |  | 10,441 |  |  | 9,840 |  |  | 257 |  |  | 1,265 |
Loans without a specific valuation allowance |  |  |  |  |  |  |  |  |  |  |
Recorded balance | 108,135 |  |  | 8,853 |  |  | 76,505 |  |  | 15,136 |  |  | 5,600 |  |  | 2,041 |
Unpaid principal balance | 131,059 |  |  | 9,925 |  |  | 94,180 |  |  | 17,724 |  |  | 7,120 |  |  | 2,110 |
Average balance | 108,827 |  |  | 12,858 |  |  | 72,323 |  |  | 15,537 |  |  | 6,004 |  |  | 2,105 |
Total |  |  |  |  |  |  |  |  |  |  |
Recorded balance | 130,263 |  |  | 11,612 |  |  | 85,634 |  |  | 23,950 |  |  | 5,934 |  |  | 3,133 |
Unpaid principal balance | 153,433 |  |  | 12,750 |  |  | 103,310 |  |  | 26,653 |  |  | 7,465 |  |  | 3,255 |
Specific valuation allowance | 6,881 |  |  | 856 |  |  | 922 |  |  | 4,419 |  |  | 296 |  |  | 388 |
Average balance | 135,572 |  |  | 17,800 |  |  | 82,764 |  |  | 25,377 |  |  | 6,261 |  |  | 3,370 |
Loan portfolio aging analysis | The following tables present an aging analysis of the recorded investment in loans by portfolio segment:
| December 31, 2017
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Accruing loans 30-59 days past due | $ | 26,375 |  |  | 6,252 |  |  | 12,546 |  |  | 3,634 |  |  | 2,142 |  |  | 1,801 |
Accruing loans 60-89 days past due | 11,312 |  |  | 794 |  |  | 5,367 |  |  | 3,502 |  |  | 987 |  |  | 662 |
Accruing loans 90 days or more past due | 6,077 |  |  | 2,366 |  |  | 609 |  |  | 2,973 |  |  | — |  |  | 129 |
Non-accrual loans | 44,833 |  |  | 4,924 |  |  | 27,331 |  |  | 8,298 |  |  | 3,338 |  |  | 942 |
Total past due and non-accrual loans | 88,597 |  |  | 14,336 |  |  | 45,853 |  |  | 18,407 |  |  | 6,467 |  |  | 3,534 |
Current loans receivable | 6,489,227 |  |  | 706,392 |  |  | 3,531,286 |  |  | 1,560,946 |  |  | 451,451 |  |  | 239,152 |
Total loans receivable | $ | 6,577,824 |  |  | 720,728 |  |  | 3,577,139 |  |  | 1,579,353 |  |  | 457,918 |  |  | 242,686 |
| December 31, 2016
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Accruing loans 30-59 days past due | $ | 20,599 |  |  | 6,338 |  |  | 5,079 |  |  | 5,388 |  |  | 2,439 |  |  | 1,355 |
Accruing loans 60-89 days past due | 5,018 |  |  | 1,398 |  |  | 754 |  |  | 1,352 |  |  | 844 |  |  | 670 |
Accruing loans 90 days or more past due | 1,099 |  |  | 266 |  |  | 145 |  |  | 283 |  |  | 191 |  |  | 214 |
Non-accrual loans | 49,332 |  |  | 4,528 |  |  | 30,216 |  |  | 8,817 |  |  | 5,240 |  |  | 531 |
Total past due and non-accrual loans | 76,048 |  |  | 12,530 |  |  | 36,194 |  |  | 15,840 |  |  | 8,714 |  |  | 2,770 |
Current loans receivable | 5,608,415 |  |  | 661,817 |  |  | 2,953,947 |  |  | 1,326,410 |  |  | 426,060 |  |  | 240,181 |
Total loans receivable | $ | 5,684,463 |  |  | 674,347 |  |  | 2,990,141 |  |  | 1,342,250 |  |  | 434,774 |  |  | 242,951 |
Summary of TDRs | The following tables present TDRs that occurred during the periods presented and the TDRs that occurred within the previous twelve months that subsequently defaulted during the periods presented:
| Year ended December 31, 2017
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
TDRs that occurred during the period |  |  |  |  |  |  |  |  |  |  |
Number of loans | 32 |  |  | 5 |  |  | 13 |  |  | 11 |  |  | 2 |  |  | 1 |
Pre-modification recorded balance | $ | 41,521 |  |  | 841 |  |  | 31,109 |  |  | 9,403 |  |  | 158 |  |  | 10 |
Post-modification recorded balance | $ | 38,838 |  |  | 841 |  |  | 28,426 |  |  | 9,403 |  |  | 158 |  |  | 10 |
TDRs that subsequently defaulted |  |  |  |  |  |  |  |  |  |  |
Number of loans | 1 |  |  | — |  |  | — |  |  | 1 |  |  | — |  |  | — |
Recorded balance | $ | 18 |  |  | — |  |  | — |  |  | 18 |  |  | — |  |  | — |
Note 3. Loans Receivable, Net (continued)
| Year ended December 31, 2016
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
TDRs that occurred during the period |  |  |  |  |  |  |  |  |  |  |
Number of loans | 34 |  |  | — |  |  | 10 |  |  | 21 |  |  | 3 |  |  | — |
Pre-modification recorded balance | $ | 22,907 |  |  | — |  |  | 8,454 |  |  | 14,183 |  |  | 270 |  |  | — |
Post-modification recorded balance | $ | 22,848 |  |  | — |  |  | 8,415 |  |  | 14,166 |  |  | 267 |  |  | — |
TDRs that subsequently defaulted |  |  |  |  |  |  |  |  |  |  |
Number of loans | 1 |  |  | — |  |  | — |  |  | 1 |  |  | — |  |  | — |
Recorded balance | $ | 6 |  |  | — |  |  | — |  |  | 6 |  |  | — |  |  | — |
| Year ended December 31, 2015
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
TDRs that occurred during the period |  |  |  |  |  |  |  |  |  |  |
Number of loans | 64 |  |  | 3 |  |  | 25 |  |  | 22 |  |  | 1 |  |  | 13 |
Pre-modification recorded balance | $ | 22,316 |  |  | 2,259 |  |  | 8,877 |  |  | 10,545 |  |  | 137 |  |  | 498 |
Post-modification recorded balance | $ | 23,110 |  |  | 2,203 |  |  | 9,927 |  |  | 10,325 |  |  | 157 |  |  | 498 |
TDRs that subsequently defaulted |  |  |  |  |  |  |  |  |  |  |
Number of loans | 7 |  |  | 1 |  |  | 1 |  |  | 4 |  |  | — |  |  | 1 |
Recorded balance | $ | 2,556 |  |  | 1,947 |  |  | 78 |  |  | 529 |  |  | — |  |  | 2 |

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- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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