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Allowance for Loan Losses
 12 Months Ended
Dec. 31, 2017
Receivables [Abstract]  
Allowance for Loan Losses
Allowance for Loan Losses
The allowance for loan losses is management’s best estimate of inherent risk of loss in the loan portfolio as of the balance sheet date. The Corporation uses a methodology to systematically measure the amount of estimated loan loss exposure inherent in the loan portfolio for purposes of establishing a sufficient allowance for loan losses. The methodology includes: (1) the identification of loss allocations for individual loans deemed to be impaired and (2) the application of loss allocation factors for non-impaired loans based on historical loss experience and estimated loss emergence period, with adjustments for various exposures that management believes are not adequately represented by historical loss experience.

Prior to December 31, 2015, an unallocated allowance was maintained for measurement imprecision associated with impaired and nonaccrual loans. As a result of further enhancement and refinement of the allowance methodology to provide a more precise quantification of probable losses in the loan portfolio, management concluded that the potential risks anticipated by the unallocated allowance had been incorporated into the allocated component of the methodology, eliminating the need for the unallocated allowance in the fourth quarter of 2015.

The following table presents the activity in the allowance for loan losses for the year ended December 31, 2017:
(Dollars in thousands)
Commercial
 
 
 
 
 
 
 
 
 
Mortgages
Construction
C&I (1)
 
Total Commercial
 
Residential
 
Consumer
 
Total
Beginning Balance

$9,971


$1,195


$6,992

 

$18,158

 

$5,252

 

$2,594

 

$26,004

Charge-offs
(1,867
)
—

(336
)
 
(2,203
)
 
(74
)
 
(185
)
 
(2,462
)
Recoveries
82

—

169

 
251

 
39

 
56

 
346

Provision
3,460

(112
)
(1,245
)
 
2,103

 
210

 
287

 
2,600

Ending Balance

$11,646


$1,083


$5,580

 

$18,309

 

$5,427

 

$2,752

 

$26,488

(1)
Commercial & industrial loans.

The following table presents the activity in the allowance for loan losses for the year ended December 31, 2016:
(Dollars in thousands)
Commercial
 
 
 
 
 
 
 
 
 
Mortgages
Construction
C&I (1)
 
Total Commercial
 
Residential
 
Consumer
 
Total
Beginning Balance

$9,140


$1,758


$8,202

 

$19,100

 

$5,460

 

$2,509

 

$27,069

Charge-offs
(5,816
)
—

(759
)
 
(6,575
)
 
(200
)
 
(237
)
 
(7,012
)
Recoveries
56

—

156

 
212

 
11

 
74

 
297

Provision
6,591

(563
)
(607
)
 
5,421

 
(19
)
 
248

 
5,650

Ending Balance

$9,971


$1,195


$6,992

 

$18,158

 

$5,252

 

$2,594

 

$26,004

(1)
Commercial & industrial loans.

The following table presents the activity in the allowance for loan losses for the year ended December 31, 2015:
(Dollars in thousands)
Commercial
 
 
 
 
 
 
Mortgages
Construction
C&I (1)
Total Commercial
Residential
Consumer
Unallocated
Total
Beginning Balance

$8,202


$1,300


$7,987


$17,489


$5,430


$2,713


$2,391


$28,023

Charge-offs
(809
)
—

(671
)
(1,480
)
(207
)
(618
)
—

(2,305
)
Recoveries
92

—

87

179

28

94

—

301

Provision
1,655

458

799

2,912

209

320

(2,391
)
1,050

Ending Balance

$9,140


$1,758


$8,202


$19,100


$5,460


$2,509


$—


$27,069

(1)
Commercial & industrial loans.

The following table presents the Corporation’s loan portfolio and associated allowance for loan losses by portfolio segment and by impairment methodology.
(Dollars in thousands)
December 31, 2017
 
December 31, 2016
 
 
 
Related
Allowance
 
 
 
Related
Allowance
 
Loans
 
 
Loans
 
Loans Individually Evaluated For Impairment:
 
 
 
 
 
 
 
Commercial:
 
 
 
 
 
 
 
Mortgages

$4,954

 

$1,018

 

$9,776

 

$448

Construction & development
—

 
—

 
—

 
—

Commercial & industrial
5,157

 
1

 
7,098

 
3

Residential Real Estate
9,783

 
104

 
15,661

 
151

Consumer
704

 
6

 
1,280

 
4

Subtotal
20,598

 
1,129

 
33,815

 
606

Loans Collectively Evaluated For Impairment:
 
 
 
 
 
 
 
Commercial:
 
 
 
 
 
 
 
Mortgages
1,067,533

 
10,628

 
1,064,410

 
9,523

Construction & development
138,008

 
1,083

 
121,371

 
1,195

Commercial & industrial
607,177

 
5,579

 
569,011

 
6,989

Residential Real Estate
1,217,465

 
5,323

 
1,107,087

 
5,101

Consumer
323,290

 
2,746

 
338,677

 
2,590

Subtotal
3,353,473

 
25,359

 
3,200,556

 
25,398

Total

$3,374,071

 

$26,488

 

$3,234,371

 

$26,004