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Allowance for Loan Losses and Credit Quality Information (Tables)
 12 Months Ended
Dec. 31, 2018
Receivables [Abstract]  
Schedule of Allowance for Loan Losses and Loan Balances
The following tables provide the activity of our allowance for loan losses and loan balances for the years ended December 31, 2018, 2017 and 2016:
 
(Dollars in thousands)
Commercial
 
Owner-
occupied
Commercial
 
Commercial
Mortgages
 
Construction
 
Residential
 
Consumer
 
Total
Year Ended December 31, 2018
Allowance for loan losses
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
16,732

 
$
5,422

 
$
5,891

 
$
2,861

 
$
1,798

 
$
7,895

 
$
40,599

Charge-offs
(12,130
)
 
(417
)
 
(255
)
 
(1,475
)
 
(91
)
 
(2,615
)
 
(16,983
)
Recoveries
1,381

 
34

 
255

 
3

 
154

 
926

 
2,753

Provision (credit)
8,328

 
(38
)
 
924

 
2,341

 
(404
)
 
2,126

 
13,277

Provision (credit) for acquired loans
(100
)
 
56

 
(9
)
 
(18
)
 
(29
)
 
(7
)
 
(107
)
Ending balance
$
14,211

 
$
5,057

 
$
6,806

 
$
3,712

 
$
1,428

 
$
8,325

 
$
39,539

Period-end allowance allocated to:
 
 
 
 
 
 
 
 
 
 
 
 
Loans individually evaluated for impairment
$
876

 
$
—

 
$
—

 
$
444

 
$
543

 
$
168

 
$
2,031

Loans collectively evaluated for impairment
13,334

 
4,965

 
6,727

 
3,254

 
847

 
8,155

 
37,282

Acquired loans evaluated for impairment
1

 
92

 
79

 
14

 
38

 
2

 
226

Ending balance
$
14,211

 
$
5,057

 
$
6,806

 
$
3,712

 
$
1,428

 
$
8,325

 
$
39,539

Period-end loan balances:
 
 
 
 
 
 
 
 
 
 
 
 
Loans individually evaluated for impairment(2)
$
14,837

 
$
4,406

 
$
4,083

 
$
2,781

 
$
11,017

 
$
7,883

 
$
45,007

Loans collectively evaluated for impairment
1,366,151

 
938,934

 
1,005,504

 
310,511

 
132,064

 
651,160

 
4,404,324

Acquired nonimpaired loans
89,970

 
112,386

 
145,648

 
2,525

 
57,708

 
21,745

 
429,982

Acquired impaired loans
1,531

 
4,248

 
7,504

 
749

 
761

 
151

 
14,944

Ending balance(3)
$
1,472,489

 
$
1,059,974

 
$
1,162,739

 
$
316,566

 
$
201,550

 
$
680,939

 
$
4,894,257

(Dollars in thousands)
Commercial
 
Owner-
occupied
Commercial
 
Commercial
Mortgages
 
Construction
 
Residential
 
Consumer
 
Total
Year Ended December 31, 2017
Allowance for loan losses
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
13,339

 
$
6,588

 
$
8,915

 
$
2,838

 
$
2,059

 
$
6,012

 
$
39,751

Charge-offs
(5,008
)
 
(296
)
 
(4,612
)
 
(574
)
 
(168
)
 
(3,184
)
 
(13,842
)
Recoveries
1,355

 
127

 
255

 
306

 
178

 
1,505

 
3,726

Provision (credit)
6,972

 
(1,098
)
 
1,160

 
222

 
(300
)
 
3,572

 
10,528

Provision (credit) for acquired loans
74

 
101

 
173

 
69

 
29

 
(10
)
 
436

Ending balance
$
16,732

 
$
5,422

 
$
5,891

 
$
2,861

 
$
1,798

 
$
7,895

 
$
40,599

Period-end allowance allocated to:
 
 
 
 
 
 
 
 
 
 
 
 
Loans individually evaluated for impairment
$
3,687

 
$
—

 
$
18

 
$
—

 
$
760

 
$
193

 
$
4,658

Loans collectively evaluated for impairment
12,871

 
5,410

 
5,779

 
2,828

 
1,002

 
7,693

 
35,583

Acquired loans evaluated for impairment
174

 
12

 
94

 
33

 
36

 
9

 
358

Ending balance
$
16,732

 
$
5,422

 
$
5,891

 
$
2,861

 
$
1,798

 
$
7,895

 
$
40,599

Period-end loan balances:
Loans individually evaluated for impairment(2)
$
19,196

 
$
3,655

 
$
6,076

 
$
6,022

 
$
13,778

 
$
7,588

 
$
56,315

Loans collectively evaluated for impairment
1,324,636

 
933,352

 
983,400

 
258,887

 
146,621

 
514,713

 
4,161,609

Acquired nonimpaired loans
116,566

 
136,437

 
188,505

 
15,759

 
72,304

 
35,945

 
565,516

Acquired impaired loans
4,156

 
5,803

 
9,724

 
940

 
784

 
247

 
21,654

Ending balance(3)
$
1,464,554

 
$
1,079,247

 
$
1,187,705

 
$
281,608

 
$
233,487

 
$
558,493

 
$
4,805,094

 
(Dollars in thousands)
Commercial
 
Owner-
occupied
Commercial
 
Commercial
Mortgages
 
Construction
 
Residential
 
Consumer
 
Complexity

Risk (1)
 
Total
Year Ended December 31, 2016
Allowance for loan losses
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance
$
11,156

 
$
6,670

 
$
6,487

 
$
3,521

 
$
2,281

 
$
5,964

 
$
1,010

 
$
37,089

Charge-offs
(5,052
)
 
(1,556
)
 
(422
)
 
(57
)
 
(88
)
 
(6,152
)
 
—

 
(13,327
)
Recoveries
594

 
117

 
322

 
484

 
254

 
1,232

 
—

 
3,003

Provision (credit)
6,260

 
1,163

 
2,466

 
(1,117
)
 
(422
)
 
4,989

 
(1,010
)
 
12,329

Provision for acquired loans
381

 
194

 
62

 
7

 
34

 
(21
)
 
—

 
657

Ending balance
$
13,339

 
$
6,588

 
$
8,915

 
$
2,838

 
$
2,059

 
$
6,012

 
$
—

 
$
39,751

Period-end allowance allocated to:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Loans individually evaluated for impairment
$
322

 
$
—

 
$
1,247

 
$
217

 
$
911

 
$
198

 
$
—

 
$
2,895

Loans collectively evaluated for impairment
12,834

 
6,573

 
7,482

 
2,535

 
1,125

 
5,797

 
—

 
36,346

Acquired loans evaluated for impairment
183

 
15

 
186

 
86

 
23

 
17

 
—

 
510

Ending balance
$
13,339

 
$
6,588

 
$
8,915

 
$
2,838

 
$
2,059

 
$
6,012

 
$
—

 
$
39,751

Period-end loan balances evaluated for:
Loans individually evaluated for impairment(2)
$
2,266

 
$
2,078

 
$
9,898

 
$
1,419

 
$
13,547

 
$
7,863

 
$
—

 
$
37,071

Loans collectively evaluated for impairment
1,120,193

 
899,590

 
921,333

 
189,468

 
157,738

 
386,146

 
—

 
3,674,468

Acquired nonimpaired loans
159,089

 
164,372

 
221,937

 
28,131

 
94,883

 
55,651

 
—

 
724,063

Acquired impaired loans
6,183

 
12,122

 
10,386

 
3,694

 
860

 
369

 
—

 
33,614

Ending balance(3)
$
1,287,731

 
$
1,078,162

 
$
1,163,554

 
$
222,712

 
$
267,028

 
$
450,029

 
$
—

 
$
4,469,216

(1)
Represents the portion of the allowance for loan losses established to account for the inherent complexity and uncertainty of estimates.
(2)
The difference between this amount and nonaccruing loans represents accruing troubled debt restructured loans which are considered to be impaired loans of $15.0 million at December 31, 2018, $20.1 million as of December 31, 2017, and $14.3 million at December 31, 2016.
(3)
Ending loan balances do not include net deferred fees.
Summary of Nonaccrual and Past Due Loans
The following tables show our nonaccrual and past due loans at the dates indicated:
 
 
December 31, 2018
(Dollars in thousands)
30–59 Days
Past Due and
Still Accruing
 
60–89 Days
Past Due and
Still Accruing
 
Greater Than
90 Days
Past Due and
Still Accruing
 
Total Past
Due
And Still
Accruing
 
Accruing
Current
Balances
 
Acquired
Impaired
Loans
 
Nonaccrual
Loans
 
Total
Loans
Commercial
$
3,653

 
$
993

 
$
71

 
$
4,717

 
$
1,452,185

 
$
1,531

 
$
14,056

 
$
1,472,489

Owner-occupied commercial
733

 
865

 
—

 
1,598

 
1,049,722

 
4,248

 
4,406

 
1,059,974

Commercial mortgages
1,388

 
908

 
—

 
2,296

 
1,148,988

 
7,504

 
3,951

 
1,162,739

Construction
157

 
—

 
—

 
157

 
312,879

 
749

 
2,781

 
316,566

Residential
1,970

 
345

 
660

 
2,975

 
194,960

 
761

 
2,854

 
201,550

Consumer
525

 
971

 
104

 
1,600

 
677,182

 
151

 
2,006

 
680,939

Total (1) (2)
$
8,426

 
$
4,082

 
$
835

 
$
13,343

 
$
4,835,916

 
$
14,944

 
$
30,054

 
$
4,894,257

% of Total Loans
0.17
%
 
0.08
%
 
0.02
%
 
0.27
%
 
98.81
%
 
0.31
%
 
0.61
%
 
100.00
%
(1)
Balances in table above includes $430.0 million in acquired non-impaired loans.
(2)
Residential accruing current balances excludes reverse mortgages at fair value of $16.5 million.

 
December 31, 2017
(Dollars in thousands)
30–59 Days
Past Due and
Still Accruing
 
60–89 Days
Past Due and
Still Accruing
 
Greater Than
90 Days
Past Due and
Still Accruing
 
Total Past
Due
And Still
Accruing
 
Accruing
Current
Balances
 
Acquired
Impaired
Loans
 
Nonaccrual
Loans
 
Total Loans
Commercial
$
1,050

 
$
—

 
$
—

 
$
1,050

 
$
1,440,291

 
$
4,156

 
$
19,057

 
$
1,464,554

Owner-occupied commercial
2,069

 
233

 
—

 
2,302

 
1,067,488

 
5,803

 
3,654

 
1,079,247

Commercial mortgages
320

 
90

 
—

 
410

 
1,171,701

 
9,724

 
5,870

 
1,187,705

Construction
—

 
—

 
—

 
—

 
278,864

 
940

 
1,804

 
281,608

Residential
2,058

 
731

 
356

 
3,145

 
225,434

 
784

 
4,124

 
233,487

Consumer
1,117

 
463

 
105

 
1,685

 
554,634

 
247

 
1,927

 
558,493

Total (1) (2)
$
6,614

 
$
1,517

 
$
461

 
$
8,592

 
$
4,738,412

 
$
21,654

 
$
36,436

 
$
4,805,094

% of Total Loans
0.14
%
 
0.03
%
 
0.01
%
 
0.18
%
 
98.61
%
 
0.45
%
 
0.76
%
 
100.00
%
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(1)
Balances in table above includes $565.5 million in acquired non-impaired loans.
(2)
Residential accruing current balances excludes reverse mortgages at fair value of $19.8 million.
Analysis of Impaired Loans
The following tables provide an analysis of our impaired loans at December 31, 2018 and December 31, 2017: 

 
December 31, 2018
(Dollars in thousands)
Ending
Loan
Balances
 
Loans with
No Related
Reserve (1)
 
Loans with
Related
Reserve (2)
 
Related
Reserve
 
Contractual
Principal
Balances (2)
 
Average
Loan
Balances
Commercial
$
14,841

 
$
8,625

 
$
6,216

 
$
878

 
$
22,365

 
$
18,484

Owner-occupied commercial
6,065

 
4,406

 
1,659

 
92

 
6,337

 
5,378

Commercial mortgages
5,679

 
4,083

 
1,596

 
79

 
15,372

 
7,438

Construction
3,530

 
—

 
3,530

 
458

 
5,082

 
5,091

Residential
11,321

 
6,442

 
4,879

 
581

 
13,771

 
12,589

Consumer
7,916

 
6,899

 
1,017

 
170

 
8,573

 
7,956

Total
$
49,352

 
$
30,455

 
$
18,897

 
$
2,258

 
$
71,500

 
$
56,936

(1)
Reflects loan balances at or written down to their remaining book balance.
(2)
The above includes acquired impaired loans totaling $4.3 million in the ending loan balance and $4.8 million in the contractual principal balance.
 
December 31, 2017
(Dollars in thousands)
Ending
Loan
Balances
 
Loans
with No
Related
Reserve (1)
 
Loans with
Related
Reserve (2)
 
Related
Reserve
 
Contractual
Principal
Balances (2)
 
Average
Loan
Balances
Commercial
$
20,842

 
$
3,422

 
$
17,420

 
$
3,861

 
$
23,815

 
$
15,072

Owner-occupied commercial
5,374

 
3,654

 
1,720

 
12

 
5,717

 
5,827

Commercial mortgages
7,598

 
4,487

 
3,111

 
112

 
16,658

 
12,630

Construction
6,292

 
6,023

 
269

 
33

 
6,800

 
4,523

Residential
14,181

 
8,282

 
5,899

 
796

 
17,015

 
14,533

Consumer
7,819

 
6,304

 
1,515

 
203

 
8,977

 
8,158

Total
$
62,106

 
$
32,172

 
$
29,934

 
$
5,017

 
$
78,982

 
$
60,743

(1)
Reflects loan balances at or written down to their remaining book balance.
(2)
The above includes acquired impaired loans totaling $5.8 million in the ending loan balance and $6.8 million in the contractual principal balance.
Schedule of Commercial Credit Exposure
 
December 31, 2018
(Dollars in thousands)
Commercial and Industrial
 
Owner-occupied
Commercial
 
Commercial
Mortgages
 
Construction
 
Total Commercial (1)
 
 
 
 
 
 
 
 
 
Amount
 
%
Risk Rating:
 
 
 
 
 
 
 
 
 
 
 
Special mention
$
8,710

 
$
21,230

 
$
—

 
$
—

 
$
29,940

 
 
Substandard:
 
 
 
 
 
 
 
 
 
 
 
Accrual
37,424

 
21,081

 
9,767

 
168

 
68,440

 
 
Nonaccrual
13,180

 
4,406

 
3,951

 
2,337

 
23,874

 
 
Doubtful
876

 
—

 
—

 
444

 
1,320

 
 
Total Special Mention and Substandard
60,190

 
46,717

 
13,718

 
2,949

 
123,574

 
3
%
Acquired impaired
1,531

 
4,248

 
7,504

 
749

 
14,032

 
—
%
Pass
1,410,768

 
1,009,009

 
1,141,517

 
312,868

 
3,874,162

 
97
%
Total
$
1,472,489

 
$
1,059,974

 
$
1,162,739

 
$
316,566

 
$
4,011,768

 
100
%
(1)
Table includes $350.5 million of acquired non-impaired loans at December 31, 2018.

 
December 31, 2017
 
Commercial and Industrial
 
Owner-occupied
Commercial
 
Commercial
Mortgages
 
Construction
 
Total Commercial (1)
(Dollars in thousands)
 
 
 
 
 
 
 
 
Amount
 
%
Risk Rating:
 
 
 
 
 
 
 
 
 
 
 
Special mention
$
22,789

 
$
16,783

 
$
—

 
$
—

 
$
39,572

 
 
Substandard:
 
 
 
 
 
 
 
 
 
 
 
Accrual
34,332

 
19,386

 
1,967

 
4,965

 
60,650

 
 
Nonaccrual
15,370

 
3,654

 
5,852

 
1,804

 
26,680

 
 
Doubtful
3,687

 
—

 
18

 
—

 
3,705

 
 
Total Special Mention and Substandard
76,178

 
39,823

 
7,837

 
6,769

 
130,607

 
3
%
Acquired impaired
4,156

 
5,803

 
9,724

 
940

 
20,623

 
1
%
Pass
1,384,220

 
1,033,621

 
1,170,144

 
273,899

 
3,861,884

 
96
%
Total
$
1,464,554

 
$
1,079,247

 
$
1,187,705

 
$
281,608

 
$
4,013,114

 
100
%
(1)
Table includes $457.3 million of acquired non-impaired loans at December 31, 2017.
Schedule of Consumer Credit Exposure
 
 
 
 
 
 
 
 
 
Total Residential and Consumer(1)
 
Residential
 
Consumer
 
2018
 
2017
(Dollars in thousands)
2018
 
2017
 
2018
 
2017
 
Amount
 
Percent
 
Amount
 
Percent
Nonperforming (2)
$
11,017

 
$
13,778

 
$
7,883

 
$
7,588

 
$
18,900

 
2
%
 
$
21,366

 
3
%
Acquired impaired loans
761

 
784

 
151

 
247

 
912

 
—
%
 
1,031

 
—
%
Performing
189,772

 
218,925

 
672,905

 
550,658

 
862,677

 
98
%
 
769,583

 
97
%
Total
$
201,550

 
$
233,487

 
$
680,939

 
$
558,493

 
$
882,489

 
100
%
 
$
791,980

 
100
%

(1)
Total includes acquired non-impaired loans of $79.5 million at December 31, 2018 and $108.2 million at December 31, 2017.
(2)
Includes $14.0 million as of December 31, 2018 and $15.3 million as of December 31, 2017 of troubled debt restructured mortgages and home equity installment loans that are performing in accordance with the loans modified terms and are accruing interest.
Summary of Balance of TDRs
The following table presents the balance of TDRs as of the indicated dates:
 
(Dollars in thousands)
December 31, 2018
 
December 31, 2017
Performing TDRs
$
14,953

 
$
20,061

Nonperforming TDRs
10,211

 
9,627

Total TDRs
$
25,164

 
$
29,688
Summary of Loan Modifications By Type
The following tables present information regarding the types of loan modifications made and the balances of loans modified as TDRs during the years ended December 31, 2018 and 2017:
 
December 31, 2018
 
December 31, 2017
 
Contractual
payment
reduction
 
Maturity
date
extension
 
Discharged
in
bankruptcy
 
Other (1)
 
Total
 
Contractual
payment
reduction
 
Maturity
date
extension
 
Discharged
in
bankruptcy
 
Other (1)
 
Total
Commercial
6

 
—

 
—

 
—

 
6

 
1

 
4

 
—

 
—

 
5

Owner-occupied commercial
—

 
—

 
—

 
—

 
—

 
—

 
1

 
—

 
—

 
1

Commercial mortgages
2

 
1

 
—

 
—

 
3

 
—

 
1

 
—

 
—

 
1

Construction
—

 
1

 
—

 
—

 
1

 
—

 
5

 
—

 
1

 
6

Residential
4

 
—

 
1

 
—

 
5

 
2

 
1

 
5

 
1

 
9

Consumer
8

 
2

 
7

 
3

 
20

 
1

 
4

 
12

 
8

 
25

 
20

 
4

 
8

 
3

 
35

 
4

 
16

 
17

 
10

 
47

(1)
Other includes interest rate reduction, forbearance, and interest only payments.
 
Year Ended December 31,
(Dollars in thousands)
2018
 
2017
Pre
Modification
 
Post
Modification
 
Pre
Modification
 
Post
Modification
Commercial
$
5,102

 
$
5,102

 
$
954

 
$
954

Owner-occupied commercial
—

 
—

 
3,071

 
3,071

Commercial mortgages
2,190

 
2,190

 
183

 
183

Construction
920

 
920

 
6,054

 
6,054

Residential
557

 
557

 
1,652

 
1,652

Consumer
1,481

 
1,481

 
2,498

 
2,498

 
$
10,250

 
$
10,250

 
$
14,412

 
$
14,412
Schedule of Loans Identified as Troubled Debt Restructurings During Periods Indicated
 
Year Ended December 31,
(Dollars in thousands)
2018
 
2017
Pre
Modification
 
Post
Modification
 
Pre
Modification
 
Post
Modification
Commercial
$
5,102

 
$
5,102

 
$
954

 
$
954

Owner-occupied commercial
—

 
—

 
3,071

 
3,071

Commercial mortgages
2,190

 
2,190

 
183

 
183

Construction
920

 
920

 
6,054

 
6,054

Residential
557

 
557

 
1,652

 
1,652

Consumer
1,481

 
1,481

 
2,498

 
2,498

 
$
10,250

 
$
10,250

 
$
14,412

 
$
14,412