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Loans, Allowance for Credit Losses, and Credit Quality (Tables)
 6 Months Ended
Jun. 30, 2015
Financing Receivable, Impaired [Line Items]  
Loan composition
 
June 30,
2015
 
December 31,
2014
 
($ in Thousands)
Commercial and industrial
$
6,208,192

 
$
5,905,902

Commercial real estate - owner occupied
978,183

 
1,007,937

Lease financing
46,900

 
51,529

Commercial and business lending
7,233,275

 
6,965,368

Commercial real estate - investor
3,126,440

 
3,056,485

Real estate construction
1,092,308

 
1,008,956

Commercial real estate lending
4,218,748

 
4,065,441

Total commercial
11,452,023

 
11,030,809

Home equity
1,530,463

 
1,636,058

Installment and credit cards
430,823

 
454,219

Residential mortgage
4,889,943

 
4,472,760

Total consumer
6,851,229

 
6,563,037

Total loans
$
18,303,252

 
$
17,593,846
Changes in the allowance for loan losses
 
Six Months Ended
June 30, 2015
 
Year Ended
December 31, 2014
 
($ in Thousands)
Allowance for Loan Losses:
 
 
 
Balance at beginning of period
$
266,302

 
$
268,315

Provision for loan losses
9,500

 
13,000

Charge offs
(27,807
)
 
(44,096
)
Recoveries
13,543

 
29,083

Net charge offs
(14,264
)
 
(15,013
)
Balance at end of period
$
261,538

 
$
266,302

Allowance for Unfunded Commitments:
 
 
 
Balance at beginning of period
$
24,900

 
$
21,900

Provision for unfunded commitments
—

 
3,000

Balance at end of period
$
24,900

 
$
24,900

Allowance for Credit Losses
$
286,438

 
$
291,202
Changes in the allowance for loan losses by portfolio segment
$ in Thousands
Commercial
and
industrial
 
Commercial
real estate -
owner
occupied
 
Lease
financing
 
Commercial
real estate -
investor
 
Real estate
construction
 
Home
equity
 
Installment
and credit
cards
 
Residential
mortgage
 
Total
Balance at Dec 31, 2014
$
116,025

 
$
16,510

 
$
1,610

 
$
46,333

 
$
20,999

 
$
30,359

 
$
6,435

 
$
28,031

 
$
266,302

Provision for loan losses
7,855

 
4,583

 
(128
)
 
(3,199
)
 
(530
)
 
(319
)
 
1,214

 
24

 
9,500

Charge offs
(13,012
)
 
(2,249
)
 
—

 
(3,430
)
 
(447
)
 
(4,387
)
 
(1,928
)
 
(2,354
)
 
(27,807
)
Recoveries
4,441

 
312

 
—

 
4,103

 
1,863

 
1,849

 
373

 
602

 
13,543

Balance at Jun 30, 2015
$
115,309

 
$
19,156

 
$
1,482

 
$
43,807

 
$
21,885

 
$
27,502

 
$
6,094

 
$
26,303

 
$
261,538

Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ending balance impaired loans individually evaluated for impairment
$
6,381

 
$
455

 
$
464

 
$
44

 
$
—

 
$
3

 
$
—

 
$
173

 
$
7,520

Ending balance impaired loans collectively evaluated for impairment
1,415

 
587

 
—

 
1,911

 
518

 
11,398

 
234

 
11,242

 
27,305

Total impaired loans
$
7,796

 
$
1,042

 
$
464

 
$
1,955

 
$
518

 
$
11,401

 
$
234

 
$
11,415

 
$
34,825

Ending balance all other loans collectively evaluated for impairment
107,513

 
18,114

 
1,018

 
41,852

 
21,367

 
16,101

 
5,860

 
14,888

 
226,713

Total
$
115,309

 
$
19,156

 
$
1,482

 
$
43,807

 
$
21,885

 
$
27,502

 
$
6,094

 
$
26,303

 
$
261,538

Loans:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ending balance impaired loans individually evaluated for impairment
$
62,483

 
$
16,485

 
$
1,656

 
$
2,914

 
$
1,925

 
$
321

 
$
—

 
$
8,740

 
$
94,524

Ending balance impaired loans collectively evaluated for impairment
34,318

 
7,769

 
—

 
25,185

 
1,695

 
27,686

 
1,250

 
58,154

 
156,057

Total impaired loans
$
96,801

 
$
24,254

 
$
1,656

 
$
28,099

 
$
3,620

 
$
28,007

 
$
1,250

 
$
66,894

 
$
250,581

Ending balance all other loans collectively evaluated for impairment
6,111,391

 
953,929

 
45,244

 
3,098,341

 
1,088,688

 
1,502,456

 
429,573

 
4,823,049

 
18,052,671

Total
$
6,208,192

 
$
978,183

 
$
46,900

 
$
3,126,440

 
$
1,092,308

 
$
1,530,463

 
$
430,823

 
$
4,889,943

 
$
18,303,252

$ in Thousands
Commercial
and
industrial
 
Commercial
real estate -
owner
occupied
 
Lease
financing
 
Commercial
real estate -
investor
 
Real estate
construction
 
Home
equity
 
Installment and credit cards
 
Residential
mortgage
 
Total
Balance at Dec 31, 2013
$
104,501

 
$
19,476

 
$
1,607

 
$
58,156

 
$
23,418

 
$
32,196

 
$
2,416

 
$
26,545

 
$
268,315

Provision for loan losses
14,767

 
(1,296
)
 
35

 
(17,290
)
 
(1,277
)
 
7,087

 
6,279

 
4,695

 
13,000

Charge offs
(14,633
)
 
(3,476
)
 
(39
)
 
(4,529
)
 
(1,958
)
 
(12,332
)
 
(2,876
)
 
(4,253
)
 
(44,096
)
Recoveries
11,390

 
1,806

 
7

 
9,996

 
816

 
3,408

 
616

 
1,044

 
29,083

Balance at Dec 31, 2014
$
116,025

 
$
16,510

 
$
1,610

 
$
46,333

 
$
20,999

 
$
30,359

 
$
6,435

 
$
28,031

 
$
266,302

Allowance for loan losses:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ending balance impaired loans individually evaluated for impairment
$
13,615

 
$
1,490

 
$
574

 
$
1,649

 
$
328

 
$
11

 
$
—

 
$
199

 
$
17,866

Ending balance impaired loans collectively evaluated for impairment
2,852

 
1,731

 
—

 
1,938

 
767

 
13,004

 
308

 
11,965

 
32,565

Total impaired loans
$
16,467

 
$
3,221

 
$
574

 
$
3,587

 
$
1,095

 
$
13,015

 
$
308

 
$
12,164

 
$
50,431

Ending balance all other loans collectively evaluated for impairment
99,558

 
13,289

 
1,036

 
42,746

 
19,904

 
17,344

 
6,127

 
15,867

 
215,871

Total
$
116,025

 
$
16,510

 
$
1,610

 
$
46,333

 
$
20,999

 
$
30,359

 
$
6,435

 
$
28,031

 
$
266,302

Loans:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Ending balance impaired loans individually evaluated for impairment
$
45,118

 
$
20,731

 
$
1,801

 
$
19,683

 
$
3,776

 
$
962

 
$
—

 
$
9,751

 
$
101,822

Ending balance impaired loans collectively evaluated for impairment
38,437

 
15,548

 
—

 
26,129

 
2,350

 
30,845

 
1,587

 
58,911

 
173,807

Total impaired loans
$
83,555

 
$
36,279

 
$
1,801

 
$
45,812

 
$
6,126

 
$
31,807

 
$
1,587

 
$
68,662

 
$
275,629

Ending balance all other loans collectively evaluated for impairment
5,822,347

 
971,658

 
49,728

 
3,010,673

 
1,002,830

 
1,604,251

 
452,632

 
4,404,098

 
17,318,217

Total
$
5,905,902

 
$
1,007,937

 
$
51,529

 
$
3,056,485

 
$
1,008,956

 
$
1,636,058

 
$
454,219

 
$
4,472,760

 
$
17,593,846
Summarized details of Loans
 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or More
Past Due (a)
 
Total Past Due
 
Current
 
Total
 
($ in Thousands)
Accruing loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
5,272

 
$
1,085

 
$
262

 
$
6,619

 
$
6,136,835

 
$
6,143,454

Commercial real estate - owner occupied
855

 
235

 
—

 
1,090

 
958,272

 
959,362

Lease financing
—

 
—

 
—

 
—

 
45,244

 
45,244

Commercial and business lending
6,127

 
1,320

 
262

 
7,709

 
7,140,351

 
7,148,060

Commercial real estate - investor
17,449

 
2,394

 
—

 
19,843

 
3,100,507

 
3,120,350

Real estate construction
203

 
109

 
—

 
312

 
1,089,090

 
1,089,402

Commercial real estate lending
17,652

 
2,503

 
—

 
20,155

 
4,189,597

 
4,209,752

Total commercial
23,779

 
3,823

 
262

 
27,864

 
11,329,948

 
11,357,812

Home equity
6,527

 
2,212

 
31

 
8,770

 
1,503,287

 
1,512,057

Installment and credit cards
1,055

 
600

 
1,369

 
3,024

 
427,345

 
430,369

Residential mortgage
4,725

 
189

 
—

 
4,914

 
4,837,739

 
4,842,653

Total consumer
12,307

 
3,001

 
1,400

 
16,708

 
6,768,371

 
6,785,079

Total accruing loans
$
36,086

 
$
6,824

 
$
1,662

 
$
44,572

 
$
18,098,319

 
$
18,142,891

Nonaccrual loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
1,276

 
$
3,684

 
$
8,907

 
$
13,867

 
$
50,871

 
$
64,738

Commercial real estate - owner occupied
258

 
1,058

 
7,942

 
9,258

 
9,563

 
18,821

Lease financing
—

 
—

 
504

 
504

 
1,152

 
1,656

Commercial and business lending
1,534

 
4,742

 
17,353

 
23,629

 
61,586

 
85,215

Commercial real estate - investor
2,462

 
640

 
2,066

 
5,168

 
922

 
6,090

Real estate construction
81

 
50

 
459

 
590

 
2,316

 
2,906

Commercial real estate lending
2,543

 
690

 
2,525

 
5,758

 
3,238

 
8,996

Total commercial
4,077

 
5,432

 
19,878

 
29,387

 
64,824

 
94,211

Home equity
1,817

 
1,780

 
8,025

 
11,622

 
6,784

 
18,406

Installment and credit cards
39

 
32

 
168

 
239

 
215

 
454

Residential mortgage
3,762

 
3,958

 
17,505

 
25,225

 
22,065

 
47,290

Total consumer
5,618

 
5,770

 
25,698

 
37,086

 
29,064

 
66,150

Total nonaccrual loans (b)
$
9,695

 
$
11,202

 
$
45,576

 
$
66,473

 
$
93,888

 
$
160,361

Total loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
6,548

 
$
4,769

 
$
9,169

 
$
20,486

 
$
6,187,706

 
$
6,208,192

Commercial real estate - owner occupied
1,113

 
1,293

 
7,942

 
10,348

 
967,835

 
978,183

Lease financing
—

 
—

 
504

 
504

 
46,396

 
46,900

Commercial and business lending
7,661

 
6,062

 
17,615

 
31,338

 
7,201,937

 
7,233,275

Commercial real estate - investor
19,911

 
3,034

 
2,066

 
25,011

 
3,101,429

 
3,126,440

Real estate construction
284

 
159

 
459

 
902

 
1,091,406

 
1,092,308

Commercial real estate lending
20,195

 
3,193

 
2,525

 
25,913

 
4,192,835

 
4,218,748

Total commercial
27,856

 
9,255

 
20,140

 
57,251

 
11,394,772

 
11,452,023

Home equity
8,344

 
3,992

 
8,056

 
20,392

 
1,510,071

 
1,530,463

Installment and credit cards
1,094

 
632

 
1,537

 
3,263

 
427,560

 
430,823

Residential mortgage
8,487

 
4,147

 
17,505

 
30,139

 
4,859,804

 
4,889,943

Total consumer
17,925

 
8,771

 
27,098

 
53,794

 
6,797,435

 
6,851,229

Total loans
$
45,781

 
$
18,026

 
$
47,238

 
$
111,045

 
$
18,192,207

 
$
18,303,252

(a)
The recorded investment in loans past due 90 days or more and still accruing totaled $2 million at June 30, 2015 (the same as the reported balances for the accruing loans noted above).
(b)
The percent of nonaccrual loans which are current was 59% at June 30, 2015.

The following table presents loans by past due status at December 31, 2014.
 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or More
Past Due (a)
 
Total Past Due
 
Current
 
Total
 
($ in Thousands)
Accruing loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
4,466

 
$
10,281

 
$
254

 
$
15,001

 
$
5,841,238

 
$
5,856,239

Commercial real estate - owner occupied
8,429

 
2,199

 
—

 
10,628

 
971,484

 
982,112

Lease financing
—

 
—

 
—

 
—

 
49,728

 
49,728

Commercial and business lending
12,895

 
12,480

 
254

 
25,629

 
6,862,450

 
6,888,079

Commercial real estate - investor
712

 
496

 
—

 
1,208

 
3,032,592

 
3,033,800

Real estate construction
951

 
33

 
—

 
984

 
1,002,573

 
1,003,557

Commercial real estate lending
1,663

 
529

 
—

 
2,192

 
4,035,165

 
4,037,357

Total commercial
14,558

 
13,009

 
254

 
27,821

 
10,897,615

 
10,925,436

Home equity
8,037

 
2,546

 
52

 
10,635

 
1,603,682

 
1,614,317

Installment and credit cards
1,186

 
746

 
1,317

 
3,249

 
450,357

 
453,606

Residential mortgage
2,840

 
206

 
—

 
3,046

 
4,420,028

 
4,423,074

Total consumer
12,063

 
3,498

 
1,369

 
16,930

 
6,474,067

 
6,490,997

Total accruing loans
$
26,621

 
$
16,507

 
$
1,623

 
$
44,751

 
$
17,371,682

 
$
17,416,433

Nonaccrual loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
872

 
$
627

 
$
10,154

 
$
11,653

 
$
38,010

 
$
49,663

Commercial real estate - owner occupied
3,197

 
41

 
8,596

 
11,834

 
13,991

 
25,825

Lease financing
—

 
—

 
513

 
513

 
1,288

 
1,801

Commercial and business lending
4,069

 
668

 
19,263

 
24,000

 
53,289

 
77,289

Commercial real estate - investor
1,857

 
459

 
12,765

 
15,081

 
7,604

 
22,685

Real estate construction
87

 
73

 
798

 
958

 
4,441

 
5,399

Commercial real estate lending
1,944

 
532

 
13,563

 
16,039

 
12,045

 
28,084

Total commercial
6,013

 
1,200

 
32,826

 
40,039

 
65,334

 
105,373

Home equity
1,615

 
2,306

 
10,602

 
14,523

 
7,218

 
21,741

Installment and credit cards
96

 
39

 
141

 
276

 
337

 
613

Residential mortgage
5,028

 
2,653

 
19,730

 
27,411

 
22,275

 
49,686

Total consumer
6,739

 
4,998

 
30,473

 
42,210

 
29,830

 
72,040

Total nonaccrual loans (b)
$
12,752

 
$
6,198

 
$
63,299

 
$
82,249

 
$
95,164

 
$
177,413

Total loans
 
 
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
5,338

 
$
10,908

 
$
10,408

 
$
26,654

 
$
5,879,248

 
$
5,905,902

Commercial real estate - owner occupied
11,626

 
2,240

 
8,596

 
22,462

 
985,475

 
1,007,937

Lease financing
—

 
—

 
513

 
513

 
51,016

 
51,529

Commercial and business lending
16,964

 
13,148

 
19,517

 
49,629

 
6,915,739

 
6,965,368

Commercial real estate - investor
2,569

 
955

 
12,765

 
16,289

 
3,040,196

 
3,056,485

Real estate construction
1,038

 
106

 
798

 
1,942

 
1,007,014

 
1,008,956

Commercial real estate lending
3,607

 
1,061

 
13,563

 
18,231

 
4,047,210

 
4,065,441

Total commercial
20,571

 
14,209

 
33,080

 
67,860

 
10,962,949

 
11,030,809

Home equity
9,652

 
4,852

 
10,654

 
25,158

 
1,610,900

 
1,636,058

Installment and credit cards
1,282

 
785

 
1,458

 
3,525

 
450,694

 
454,219

Residential mortgage
7,868

 
2,859

 
19,730

 
30,457

 
4,442,303

 
4,472,760

Total consumer
18,802

 
8,496

 
31,842

 
59,140

 
6,503,897

 
6,563,037

Total loans
$
39,373

 
$
22,705

 
$
64,922

 
$
127,000

 
$
17,466,846

 
$
17,593,846

(a)
The recorded investment in loans past due 90 days or more and still accruing totaled $2 million at December 31, 2014 (the same as the reported balances for the accruing loans noted above).
(b)
The percent of nonaccrual loans which are current was 54% at December 31, 2014.
Summarized details of impaired Loans
 
Recorded
Investment
 
Unpaid
Principal
Balance
 
Related
Allowance
 
YTD
Average
Recorded
Investment
 
YTD Interest
Income
Recognized (a)
 
($ in Thousands)
Loans with a related allowance
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
69,425

 
$
71,027

 
$
7,796

 
$
66,408

 
$
651

Commercial real estate - owner occupied
11,096

 
11,338

 
1,042

 
11,324

 
139

Lease financing
1,656

 
1,656

 
464

 
1,710

 
—

Commercial and business lending
82,177

 
84,021

 
9,302

 
79,442

 
790

Commercial real estate - investor
25,868

 
27,546

 
1,955

 
25,995

 
587

Real estate construction
1,695

 
2,389

 
518

 
1,931

 
32

Commercial real estate lending
27,563

 
29,935

 
2,473

 
27,926

 
619

Total commercial
109,740

 
113,956

 
11,775

 
107,368

 
1,409

Home equity
27,797

 
30,873

 
11,401

 
28,356

 
644

Installment and credit cards
1,250

 
1,394

 
234

 
1,301

 
15

Residential mortgage
59,735

 
63,695

 
11,415

 
60,151

 
990

Total consumer
88,782

 
95,962

 
23,050

 
89,808

 
1,649

Total loans
$
198,522

 
$
209,918

 
$
34,825

 
$
197,176

 
$
3,058

Loans with no related allowance
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
27,376

 
$
28,034

 
$
—

 
$
27,722

 
$
337

Commercial real estate - owner occupied
13,158

 
14,519

 
—

 
13,335

 
36

Lease financing
—

 
—

 
—

 
—

 
—

Commercial and business lending
40,534

 
42,553

 
—

 
41,057

 
373

Commercial real estate - investor
2,231

 
2,626

 
—

 
2,273

 
—

Real estate construction
1,925

 
2,237

 
—

 
1,954

 
—

Commercial real estate lending
4,156

 
4,863

 
—

 
4,227

 
—

Total commercial
44,690

 
47,416

 
—

 
45,284

 
373

Home equity
210

 
210

 
—

 
211

 
4

Installment and credit cards
—

 
—

 
—

 
—

 
—

Residential mortgage
7,159

 
7,413

 
—

 
7,173

 
41

Total consumer
7,369

 
7,623

 
—

 
7,384

 
45

Total loans
$
52,059

 
$
55,039

 
$
—

 
$
52,668

 
$
418

Total impaired loans
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
96,801

 
$
99,061

 
$
7,796

 
$
94,130

 
$
988

Commercial real estate - owner occupied
24,254

 
25,857

 
1,042

 
24,659

 
175

Lease financing
1,656

 
1,656

 
464

 
1,710

 
—

Commercial and business lending
122,711

 
126,574

 
9,302

 
120,499

 
1,163

Commercial real estate - investor
28,099

 
30,172

 
1,955

 
28,268

 
587

Real estate construction
3,620

 
4,626

 
518

 
3,885

 
32

Commercial real estate lending
31,719

 
34,798

 
2,473

 
32,153

 
619

Total commercial
154,430

 
161,372

 
11,775

 
152,652

 
1,782

Home equity
28,007

 
31,083

 
11,401

 
28,567

 
648

Installment and credit cards
1,250

 
1,394

 
234

 
1,301

 
15

Residential mortgage
66,894

 
71,108

 
11,415

 
67,324

 
1,031

Total consumer
96,151

 
103,585

 
23,050

 
97,192

 
1,694

Total impaired loans (b)
$
250,581

 
$
264,957

 
$
34,825

 
$
249,844

 
$
3,476

(a)
Interest income recognized included $2 million of interest income recognized on accruing restructured loans for the six months ended June 30, 2015.
(b)
The implied fair value mark on all impaired loans at June 30, 2015 was 81% of their unpaid principal balance. The fair value mark is calculated as the recorded investment, net of the related allowance, divided by the unpaid principal balance.


The following table presents impaired loans at December 31, 2014. 
 
Recorded
Investment
 
Unpaid
Principal
Balance
 
Related
Allowance
 
YTD
Average
Recorded
Investment
 
YTD Interest
Income
Recognized (a)
 
($ in Thousands)
Loans with a related allowance
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
76,433

 
$
80,414

 
$
16,467

 
$
80,004

 
$
3,139

Commercial real estate - owner occupied
19,839

 
21,807

 
3,221

 
20,878

 
681

Lease financing
1,801

 
1,801

 
574

 
2,009

 
—

Commercial and business lending
98,073

 
104,022

 
20,262

 
102,891

 
3,820

Commercial real estate - investor
36,841

 
40,869

 
3,587

 
38,657

 
1,250

Real estate construction
3,043

 
5,910

 
1,095

 
3,818

 
105

Commercial real estate lending
39,884

 
46,779

 
4,682

 
42,475

 
1,355

Total commercial
137,957

 
150,801

 
24,944

 
145,366

 
5,175

Home equity
31,021

 
34,727

 
13,015

 
32,375

 
1,510

Installment and credit cards
1,587

 
1,795

 
308

 
1,736

 
58

Residential mortgage
61,601

 
65,863

 
12,164

 
62,742

 
2,054

Total consumer
94,209

 
102,385

 
25,487

 
96,853

 
3,622

Total loans
$
232,166

 
$
253,186

 
$
50,431

 
$
242,219

 
$
8,797

Loans with no related allowance
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
7,122

 
$
12,634

 
$
—

 
$
8,851

 
$
82

Commercial real estate - owner occupied
16,440

 
19,019

 
—

 
17,970

 
219

Lease financing
—

 
—

 
—

 
—

 
—

Commercial and business lending
23,562

 
31,653

 
—

 
26,821

 
301

Commercial real estate - investor
8,971

 
14,036

 
—

 
10,014

 
133

Real estate construction
3,083

 
3,815

 
—

 
3,241

 
—

Commercial real estate lending
12,054

 
17,851

 
—

 
13,255

 
133

Total commercial
35,616

 
49,504

 
—

 
40,076

 
434

Home equity
786

 
806

 
—

 
851

 
18

Installment and credit cards
—

 
—

 
—

 
—

 
—

Residential mortgage
7,061

 
7,315

 
—

 
7,224

 
135

Total consumer
7,847

 
8,121

 
—

 
8,075

 
153

Total loans
$
43,463

 
$
57,625

 
$
—

 
$
48,151

 
$
587

Total impaired loans
 
 
 
 
 
 
 
 
 
Commercial and industrial
$
83,555

 
$
93,048

 
$
16,467

 
$
88,855

 
$
3,221

Commercial real estate - owner occupied
36,279

 
40,826

 
3,221

 
38,848

 
900

Lease financing
1,801

 
1,801

 
574

 
2,009

 
—

Commercial and business lending
121,635

 
135,675

 
20,262

 
129,712

 
4,121

Commercial real estate - investor
45,812

 
54,905

 
3,587

 
48,671

 
1,383

Real estate construction
6,126

 
9,725

 
1,095

 
7,059

 
105

Commercial real estate lending
51,938

 
64,630

 
4,682

 
55,730

 
1,488

Total commercial
173,573

 
200,305

 
24,944

 
185,442

 
5,609

Home equity
31,807

 
35,533

 
13,015

 
33,226

 
1,528

Installment and credit cards
1,587

 
1,795

 
308

 
1,736

 
58

Residential mortgage
68,662

 
73,178

 
12,164

 
69,966

 
2,189

Total consumer
102,056

 
110,506

 
25,487

 
104,928

 
3,775

Total impaired loans (b)
$
275,629

 
$
310,811

 
$
50,431

 
$
290,370

 
$
9,384

(a)
Interest income recognized included $5 million of interest income recognized on accruing restructured loans for the year ended December 31, 2014.
(b)
The implied fair value mark on all impaired loans at December 31, 2014 was 72% of their unpaid principal balance. The fair value mark is calculated as the recorded investment, net of the related allowance, divided by the unpaid principal balance.
Nonaccrual and Performing Restructured Loans
 
June 30, 2015
 
December 31, 2014
 
Performing
Restructured
Loans
 
Nonaccrual
Restructured
Loans *
 
Performing
Restructured
Loans
 
Nonaccrual
Restructured
Loans *
 
($ in Thousands)
Commercial and industrial
$
32,063

 
$
6,496

 
$
33,892

 
$
3,260

Commercial real estate - owner occupied
5,433

 
3,900

 
10,454

 
5,656

Commercial real estate - investor
22,009

 
4,528

 
23,127

 
15,216

Real estate construction
714

 
179

 
727

 
2,438

Home equity
9,601

 
5,551

 
10,066

 
7,518

Installment and credit cards
796

 
146

 
974

 
199

Residential mortgage
19,604

 
22,899

 
18,976

 
23,369

Total
$
90,220

 
$
43,699

 
$
98,216

 
$
57,656

*
Nonaccrual restructured loans have been included with nonaccrual loans.
Summary of Restructured Loans
 
Three Months Ended June 30, 2015
 
Six Months Ended June 30, 2015
 
Number of
Loans
 
Recorded
Investment (1)
 
Unpaid
Principal
Balance (2)
 
Number of
Loans
 
Recorded
Investment (1)
 
Unpaid
Principal
Balance (2)
 
($ in Thousands)
Commercial and industrial
4

 
$
1,666

 
$
2,101

 
6

 
$
1,847

 
$
2,296

Commercial real estate - owner occupied
—

 
—

 
—

 
5

 
3,506

 
3,636

Commercial real estate - investor
—

 
—

 
—

 
1

 
2,237

 
2,237

Real estate construction
1

 
6

 
6

 
1

 
6

 
6

Home equity
26

 
850

 
850

 
49

 
1,897

 
1,898

Residential mortgage
28

 
2,861

 
2,932

 
52

 
5,249

 
5,380

Total
59

 
$
5,383

 
$
5,889

 
114

 
$
14,742

 
$
15,453

 
(1)
Represents post-modification outstanding recorded investment.
(2)
Represents pre-modification outstanding recorded investment.
 
Three Months Ended June 30, 2014
 
Six Months Ended June 30, 2014
 
Number of
Loans
 
Recorded
Investment (1)
 
Unpaid
Principal
Balance (2)
 
Number of
Loans
 
Recorded
Investment (1)
 
Unpaid
Principal
Balance (2)
 
($ in Thousands)
Commercial and industrial
3

 
$
526

 
$
534

 
11

 
$
3,889

 
$
7,736

Commercial real estate - owner occupied
1

 
894

 
894

 
5

 
6,096

 
6,652

Commercial real estate - investor
—

 
—

 
—

 
1

 
493

 
508

Real estate construction
1

 
6

 
6

 
1

 
6

 
6

Home equity
35

 
1,630

 
1,723

 
62

 
2,476

 
2,693

Installment and credit cards
1

 
16

 
16

 
2

 
25

 
35

Residential mortgage
28

 
1,942

 
2,435

 
48

 
4,430

 
5,103

Total
69

 
$
5,014

 
$
5,608

 
130

 
$
17,415

 
$
22,733

 
(1)
Represents post-modification outstanding recorded investment.
(2)
Represents pre-modification outstanding recorded investment.
Troubled Debt Restructurings Subsequent Default
 
Three Months Ended June 30, 2014
 
Six Months Ended June 30, 2014
 
Number of
Loans
 
Recorded
Investment
 
Number of
Loans
 
Recorded
Investment
 
($ in Thousands)
Commercial and industrial
2

 
$
135

 
2

 
$
135

Commercial real estate - owner occupied
2

 
612

 
2

 
612

Commercial real estate - investor
1

 
1,291

 
1

 
1,291

Real estate construction
—

 
—

 
1

 
161

Home equity
13

 
414

 
18

 
651

Installment and credit cards
1

 
16

 
2

 
25

Residential mortgage
20

 
1,565

 
32

 
3,334

Total
39

 
$
4,033

 
58

 
$
6,209

 
Three Months Ended June 30, 2015
 
Six Months Ended June 30, 2015
 
Number of
Loans
 
Recorded
Investment
 
Number of
Loans
 
Recorded
Investment
 
($ in Thousands)
Commercial and industrial
1

 
$
43

 
1

 
$
43

Commercial real estate - owner occupied
—

 
—

 
1

 
297

Home equity
15

 
341

 
22

 
1,001

Residential mortgage
13

 
992

 
29

 
2,230

Total
29

 
$
1,376

 
53

 
$
3,571
Commercial Loan [Member]  
Financing Receivable, Impaired [Line Items]  
Commercial and Consumer loans by credit quality indicator
 
Pass
 
Special
Mention
 
Potential
Problem
 
Impaired
 
Total
 
($ in Thousands)
Commercial and industrial
$
5,753,506

 
$
232,242

 
$
125,643

 
$
96,801

 
$
6,208,192

Commercial real estate - owner occupied
886,336

 
25,596

 
41,997

 
24,254

 
978,183

Lease financing
39,549

 
4,310

 
1,385

 
1,656

 
46,900

Commercial and business lending
6,679,391

 
262,148

 
169,025

 
122,711

 
7,233,275

Commercial real estate - investor
3,060,371

 
14,427

 
23,543

 
28,099

 
3,126,440

Real estate construction
1,086,630

 
731

 
1,327

 
3,620

 
1,092,308

Commercial real estate lending
4,147,001

 
15,158

 
24,870

 
31,719

 
4,218,748

Total commercial
$
10,826,392

 
$
277,306

 
$
193,895

 
$
154,430

 
$
11,452,023

The following table presents commercial loans by credit quality indicator at December 31, 2014.
 
Pass
 
Special
Mention
 
Potential
Problem
 
Impaired
 
Total
 
($ in Thousands)
Commercial and industrial
$
5,594,497

 
$
119,328

 
$
108,522

 
$
83,555

 
$
5,905,902

Commercial real estate - owner occupied
904,526

 
18,437

 
48,695

 
36,279

 
1,007,937

Lease financing
46,931

 
88

 
2,709

 
1,801

 
51,529

Commercial and business lending
6,545,954

 
137,853

 
159,926

 
121,635

 
6,965,368

Commercial real estate - investor
2,974,493

 
12,137

 
24,043

 
45,812

 
3,056,485

Real estate construction
998,972

 
2,082

 
1,776

 
6,126

 
1,008,956

Commercial real estate lending
3,973,465

 
14,219

 
25,819

 
51,938

 
4,065,441

Total commercial
$
10,519,419

 
$
152,072

 
$
185,745

 
$
173,573

 
$
11,030,809
Consumer Loan [Member]  
Financing Receivable, Impaired [Line Items]  
Commercial and Consumer loans by credit quality indicator
 
Performing
 
30-89 Days
Past Due
 
Potential
Problem
 
Impaired
 
Total
 
($ in Thousands)
Home equity
$
1,493,285

 
$
8,739

 
$
432

 
$
28,007

 
$
1,530,463

Installment and credit cards
427,918

 
1,655

 
—

 
1,250

 
430,823

Residential mortgage
4,812,794

 
4,914

 
5,341

 
66,894

 
4,889,943

Total consumer
$
6,733,997

 
$
15,308

 
$
5,773

 
$
96,151

 
$
6,851,229

The following table presents consumer loans by credit quality indicator at December 31, 2014.
 
Performing
 
30-89 Days
Past Due
 
Potential
Problem
 
Impaired
 
Total
 
($ in Thousands)
Home equity
$
1,592,788

 
$
10,583

 
$
880

 
$
31,807

 
$
1,636,058

Installment and credit cards
450,698

 
1,932

 
2

 
1,587

 
454,219

Residential mortgage
4,397,271

 
3,046

 
3,781

 
68,662

 
4,472,760

Total consumer
$
6,440,757

 
$
15,561

 
$
4,663

 
$
102,056

 
$
6,563,037