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Loans (Tables)
12 Months Ended
Dec. 31, 2017
Receivables [Abstract]  
Summary of loans under portfolio
A summary of the Corporation's loans follows:
(Dollars in thousands)
 
Originated
 
Acquired(1)
 
Total loans
December 31, 2017
 
 
 
 
 
 
Commercial loan portfolio:
 
 
 
 
 
 
Commercial
 
$
2,407,606

 
$
978,036

 
$
3,385,642

Commercial real estate
 
2,751,425

 
1,749,245

 
4,500,670

Real estate construction and land development
 
498,155

 
76,060

 
574,215

Subtotal
 
5,657,186

 
2,803,341

 
8,460,527

Consumer loan portfolio:
 
 
 
 
 
 
Residential mortgage
 
1,967,857

 
1,284,630

 
3,252,487

Consumer installment
 
1,510,540

 
102,468

 
1,613,008

Home equity
 
611,846

 
217,399

 
829,245

Subtotal
 
4,090,243

 
1,604,497

 
5,694,740

Total loans(2)
 
$
9,747,429

 
$
4,407,838

 
$
14,155,267

December 31, 2016
 
 
 
 
 
 
Commercial loan portfolio:
 
 
 
 
 
 
Commercial
 
$
1,901,526

 
$
1,315,774

 
$
3,217,300

Commercial real estate
 
1,921,799

 
2,051,341

 
3,973,140

Real estate construction and land development
 
281,724

 
122,048

 
403,772

Subtotal
 
4,105,049

 
3,489,163

 
7,594,212

Consumer loan portfolio:
 
 
 
 
 
 
Residential mortgage
 
1,475,342

 
1,611,132

 
3,086,474

Consumer installment
 
1,282,588

 
151,296

 
1,433,884

Home equity
 
595,422

 
280,787

 
876,209

Subtotal
 
3,353,352

 
2,043,215

 
5,396,567

Total loans(2)
 
$
7,458,401

 
$
5,532,378

 
$
12,990,779


(1) 
Acquired loans are accounted for under ASC 310-30.
(2) 
Reported net of deferred costs totaling $26.1 million and $14.8 million at December 31, 2017 and 2016, respectively.
Schedule of activity for accretable yield
Activity for the accretable yield is as follows:
(Dollars in thousands)
 
Talmer
 
Lake Michigan
 
Monarch
 
North-western
 
OAK
 
Total
Year Ended December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
Balance at beginning of period
 
$
798,210

 
$
121,416

 
$
27,182

 
$
69,847

 
$
23,316

 
$
1,039,971

Accretion recognized in interest income
 
(175,678
)
 
(29,077
)
 
(4,533
)
 
(20,318
)
 
(12,563
)
 
(242,169
)
Net reclassification (to) from nonaccretable difference(1)
 
108,821

 
2,785

 
(153
)
 
11,285

 
6,357

 
129,095

Balance at end of period
 
$
731,353

 
$
95,124

 
$
22,496

 
$
60,814

 
$
17,110

 
$
926,897

Year Ended December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
Balance at beginning of period
 
$

 
$
152,999

 
$
34,558

 
$
82,623

 
$
28,077

 
$
298,257

Addition attributable to acquisitions
 
862,127

 

 

 

 

 
862,127

Additions (reductions)(1)
 

 
(3,552
)
 
(1,908
)
 
(6,985
)
 
1,091

 
(11,354
)
Accretion recognized in interest income
 
(63,917
)
 
(33,031
)
 
(5,468
)
 
(15,791
)
 
(13,352
)
 
(131,559
)
Net reclassification (to) from nonaccretable difference(1)
 

 
5,000

 

 
10,000

 
7,500

 
22,500

Balance at end of period
 
$
798,210

 
$
121,416

 
$
27,182

 
$
69,847

 
$
23,316

 
$
1,039,971

Year Ended December 31, 2015
 
 
 
 
Balance at beginning of period
 
$

 
$

 
$

 
$
104,675

 
$
33,286

 
$
137,961

Addition attributable to acquisitions
 

 
190,246

 
37,914

 

 

 
228,160

Additions (reductions)(1)
 

 
(12,991
)
 
1,336

 
(3,396
)
 
6,601

 
(8,450
)
Accretion recognized in interest income
 

 
(24,256
)
 
(4,692
)
 
(18,656
)
 
(11,810
)
 
(59,414
)
Net reclassification (to) from nonaccretable difference(1)
 

 

 

 

 

 

Balance at end of period
 
$

 
$
152,999

 
$
34,558

 
$
82,623

 
$
28,077

 
$
298,257

(1) 
The net reclassification results from changes in expected cash flows of the acquired loans which may include increases in the amount of contractual principal and interest expected to be collected due to improvement in credit quality, increases in balances outstanding from advances, renewals, extensions and interest rates; as well as reductions in contractual principal and interest expected to be collected due to credit deterioration, payoffs, and decreases in interest rates.
Recorded investment of loans in the commercial loan portfolio by risk rating categories
The following schedule presents the recorded investment of loans in the commercial loan portfolio by credit risk categories at December 31, 2017 and 2016:
(Dollars in thousands)
 
Pass
 
Special Mention
 
Substandard
 
Doubtful
 
Total
December 31, 2017
 
 
 
 
 
 
 
 
 
 
Originated Portfolio:
 
 
 
 
 
 
 
 
 
 
Commercial
 
$
2,316,464

 
$
41,059

 
$
50,083

 
$

 
$
2,407,606

Commercial real estate
 
2,677,579

 
24,204

 
49,642

 

 
2,751,425

Real estate construction and land development
 
494,528

 
837

 
2,790

 

 
498,155

Subtotal
 
5,488,571

 
66,100

 
102,515

 

 
5,657,186

Acquired Portfolio:
 
 
 
 
 
 
 
 
 
 
Commercial
 
873,861

 
68,418

 
35,539

 
218

 
978,036

Commercial real estate
 
1,603,685

 
67,970

 
76,803

 
787

 
1,749,245

Real estate construction and land development
 
72,346

 
2,218

 
1,496

 

 
76,060

Subtotal
 
2,549,892

 
138,606

 
113,838

 
1,005

 
2,803,341

Total
 
$
8,038,463

 
$
204,706

 
$
216,353

 
$
1,005

 
$
8,460,527

December 31, 2016
 
 
 
 
 
 
 
 
 
 
Originated Portfolio:
 
 
 
 
 
 
 
 
 
 
Commercial
 
$
1,803,750

 
$
44,809

 
$
51,898

 
$
1,069

 
$
1,901,526

Commercial real estate
 
1,849,315

 
36,981

 
35,502

 
1

 
1,921,799

Real estate construction and land development
 
280,968

 
157

 
599

 

 
281,724

Subtotal
 
3,934,033

 
81,947

 
87,999

 
1,070

 
4,105,049

Acquired Portfolio:
 
 
 
 
 
 
 
 
 
 
Commercial
 
1,218,848

 
46,643

 
50,283

 

 
1,315,774

Commercial real estate
 
1,897,011

 
61,441

 
92,636

 
253

 
2,051,341

Real estate construction and land development
 
117,505

 
1,982

 
2,561

 

 
122,048

Subtotal
 
3,233,364

 
110,066

 
145,480

 
253

 
3,489,163

Total
 
$
7,167,397

 
$
192,013

 
$
233,479

 
$
1,323

 
$
7,594,212

Recorded investment of loans in the consumer loan portfolio based on the credit risk profile of loans in a performing and nonperforming status
The following schedule presents the recorded investment of loans in the consumer loan portfolio based on loans in a performing status and loans in a nonperforming status at December 31, 2017 and 2016:
(Dollars in thousands)
 
Residential mortgage
 
Consumer
installment
 
Home equity
 
Total consumer
December 31, 2017
 
 
 
 
 
 
 
 
Originated Portfolio:
 
 
 
 
 
 
 
 
Performing
 
$
1,959,222

 
$
1,509,698

 
$
607,541

 
$
4,076,461

Nonperforming
 
8,635

 
842

 
4,305

 
13,782

Subtotal
 
1,967,857

 
1,510,540

 
611,846

 
4,090,243

Acquired Loans
 
1,284,630

 
102,468

 
217,399

 
1,604,497

Total
 
$
3,252,487

 
$
1,613,008

 
$
829,245

 
$
5,694,740

December 31, 2016
 
 
 
 
 
 
 
 
Originated Portfolio:
 
 
 
 
 
 
 
 
Performing
 
$
1,468,373

 
$
1,281,709

 
$
592,071

 
$
3,342,153

Nonperforming
 
6,969

 
879

 
3,351

 
11,199

Subtotal
 
1,475,342

 
1,282,588

 
595,422

 
3,353,352

Acquired Loans
 
1,611,132

 
151,296

 
280,787

 
2,043,215

Total
 
$
3,086,474

 
$
1,433,884

 
$
876,209

 
$
5,396,567

Summary of nonperforming loans
A summary of nonperforming assets follows:
 
 
December 31,
(Dollars in thousands)
 
2017
 
2016
Nonperforming assets
 
 
 
 
Nonaccrual loans:
 
 
 
 
Commercial
 
$
19,691

 
$
13,178

Commercial real estate
 
29,545

 
19,877

Real estate construction and land development
 
77

 
80

Residential mortgage
 
8,635

 
6,969

Consumer installment
 
842

 
879

Home equity
 
4,305

 
3,351

Total nonaccrual loans
 
63,095

 
44,334

Other real estate owned and repossessed assets
 
8,807

 
17,187

Total nonperforming assets
 
$
71,902

 
$
61,521

Accruing loans contractually past due 90 days or more as to interest or principal payments, excluding acquired loans accounted for under ASC 310-30
 
 
 
 
Commercial
 
$

 
$
11

Commercial real estate
 
13

 
277

Residential mortgage
 

 

Home equity
 
1,364

 
995

Total accruing loans contractually past due 90 days or more as to interest or principal payments, excluding acquired loans accounted for under ASC 310-30
 
$
1,377

 
$
1,283

Schedule representing the aging status of the recorded investment in loans by classes
Loan delinquency, excluding acquired loans accounted for under ASC 310-30, was as follows:
(Dollars in thousands)
 
30-59
days
past due
 
60-89
days
past due
 
90 days or more past due
 
Total past due
 
Current
 
Total loans
 
90 days or more past due and still accruing
December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Originated Portfolio:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial
 
$
13,906

 
$
3,766

 
$
9,494

 
$
27,166

 
$
2,380,440

 
$
2,407,606

 
$

Commercial real estate
 
9,380

 
1,562

 
5,873

 
16,815

 
2,734,610

 
2,751,425

 
13

Real estate construction and land development
 

 

 

 

 
498,155

 
498,155

 

Residential mortgage
 
2,795

 
1,415

 
858

 
5,068

 
1,962,789

 
1,967,857

 

Consumer installment
 
3,324

 
442

 
226

 
3,992

 
1,506,548

 
1,510,540

 

Home equity
 
2,319

 
1,301

 
2,196

 
5,816

 
606,030

 
611,846

 
1,364

Total
 
$
31,724

 
$
8,486

 
$
18,647

 
$
58,857

 
$
9,688,572

 
$
9,747,429

 
$
1,377

December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Originated Portfolio:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial
 
$
10,421

 
$
4,842

 
$
3,641

 
$
18,904

 
$
1,882,622

 
$
1,901,526

 
$
11

Commercial real estate
 
6,551

 
1,589

 
5,165

 
13,305

 
1,908,494

 
1,921,799

 
277

Real estate construction and land development
 
2,721

 
499

 

 
3,220

 
278,504

 
281,724

 

Residential mortgage
 
3,147

 
62

 
1,752

 
4,961

 
1,470,381

 
1,475,342

 

Consumer installment
 
3,991

 
675

 
238

 
4,904

 
1,277,684

 
1,282,588

 

Home equity
 
3,097

 
893

 
2,349

 
6,339

 
589,083

 
595,422

 
995

Total
 
$
29,928

 
$
8,560

 
$
13,145

 
$
51,633

 
$
7,406,768

 
$
7,458,401

 
$
1,283

Schedule of Impaired loans by classes
The following schedules present impaired loans by classes of loans at December 31, 2017 and December 31, 2016:
(Dollars in thousands)
 
Recorded
investment
 
Unpaid
principal
balance
 
Related
valuation
allowance
December 31, 2017
 
 
 
 
 
 
Impaired loans with a valuation allowance:
 
 
 
 
 
 
Commercial
 
$
28,897

 
$
31,655

 
$
2,296

Commercial real estate
 
28,003

 
34,580

 
3,227

Real estate construction and land development
 
313

 
313

 
14

Residential mortgage
 
15,872

 
15,872

 
1,487

Consumer installment
 
966

 
966

 
120

Home equity
 
4,570

 
4,570

 
858

Subtotal
 
78,621

 
87,956

 
8,002

Impaired loans with no related valuation allowance:
 
 
 
 
 
 
Commercial
 
8,504

 
9,291

 

Commercial real estate
 
18,080

 
19,861

 

Real estate construction and land development
 

 

 

Residential mortgage
 
4,902

 
4,902

 

Consumer installment
 

 

 

Home equity
 
1,770

 
1,770

 

Subtotal
 
33,256

 
35,824

 

Total impaired loans:
 
 
 
 
 
 
Commercial
 
37,401

 
40,946

 
2,296

Commercial real estate
 
46,083

 
54,441

 
3,227

Real estate construction and land development
 
313

 
313

 
14

Residential mortgage
 
20,774

 
20,774

 
1,487

Consumer installment
 
966

 
966

 
120

Home equity
 
6,340

 
6,340

 
858

Total
 
$
111,877

 
$
123,780

 
$
8,002

    
(Dollars in thousands)
 
Recorded
investment
 
Unpaid
principal
balance
 
Related
valuation
allowance
December 31, 2016
 
 
Impaired loans with a valuation allowance:
 
 
 
 
 
 
Commercial
 
$
28,925

 
$
33,209

 
$
3,128

Commercial real estate
 
21,318

 
27,558

 
2,102

Real estate construction and land development
 
177

 
177

 
4

Residential mortgage
 
20,864

 
20,864

 
3,528

Consumer installment
 
879

 
879

 
240

Home equity
 
2,577

 
2,577

 
390

Subtotal
 
74,740

 
85,264

 
9,392

Impaired loans with no related valuation allowance:
 
 
 
 
 
 
Commercial
 
7,435

 
11,153

 

Commercial real estate
 
20,588

 
23,535

 

Real estate construction and land development
 
80

 
80

 

Residential mortgage
 
3,252

 
3,252

 

Consumer installment
 

 

 

Home equity
 
774

 
774

 

Subtotal
 
32,129

 
38,794

 

Total impaired loans:
 
 
 
 
 
 
Commercial
 
36,360

 
44,362

 
3,128

Commercial real estate
 
41,906

 
51,093

 
2,102

Real estate construction and land development
 
257

 
257

 
4

Residential mortgage
 
24,116

 
24,116

 
3,528

Consumer installment
 
879

 
879

 
240

Home equity
 
3,351

 
3,351

 
390

Total
 
$
106,869

 
$
124,058

 
$
9,392

The following schedule presents additional information regarding impaired loans by classes of loans segregated by those requiring a valuation allowance and those not requiring a valuation allowance at December 31, 2017, 2016 and 2015 and the respective interest income amounts recognized:
 
 
For the years ended December 31,
 
 
2017
 
2016
 
2015
(Dollars in thousands)
 
Average annual recorded investment
 
Interest income recognized while on impaired status
 
Average annual recorded investment
 
Interest income recognized while on impaired status
 
Average annual recorded investment
 
Interest income recognized while on impaired status
Impaired loans with a valuation allowance:
 
 
 
 
 
 
 
 
 
 
 
 
Commercial
 
$
25,099

 
$
939

 
$
7,829

 
$

 
$
9,511

 
$

Commercial real estate
 
19,983

 
677

 
5,658

 

 
2,918

 

Real estate construction and land development
 
175

 
10

 
19

 

 

 

Residential mortgage
 
16,390

 
538

 
23,958

 
1,285

 
20,661

 
1,312

Consumer installment
 
744

 
4

 
359

 

 

 

Home equity
 
4,201

 
82

 
1,759

 

 

 

Subtotal
 
66,592

 
2,250

 
39,582

 
1,285

 
33,090

 
1,312

Impaired loans with no related valuation allowance:
 
 
 
 
 
 
 
 
 
 
 
 
Commercial
 
10,196

 
28

 
29,559

 
1,343

 
27,778

 
1,005

Commercial real estate
 
24,658

 
245

 
41,646

 
1,236

 
50,079

 
1,547

Real estate construction and land development
 
78

 

 
585

 
22

 
889

 
25

Residential mortgage
 
4,622

 
38

 
1,519

 

 
6,027

 

Consumer installment
 
205

 

 

 

 
448

 

Home equity
 
1,392

 
14

 
555

 

 
1,872

 

Subtotal
 
41,151

 
325

 
73,864

 
2,601

 
87,093

 
2,577

Total impaired loans:
 
 
 
 
 
 
 
 
 
 
 
 
Commercial
 
35,295

 
967

 
37,388

 
1,343

 
37,289

 
1,005

Commercial real estate
 
44,641

 
922

 
47,304

 
1,236

 
52,997

 
1,547

Real estate construction and land development
 
253

 
10

 
604

 
22

 
889

 
25

Residential mortgage
 
21,012

 
576

 
25,477

 
1,285

 
26,688

 
1,312

Consumer installment
 
949

 
4

 
359

 

 
448

 

Home equity
 
5,593

 
96

 
2,314

 

 
1,872

 

Total
 
$
107,743

 
$
2,575

 
$
113,446

 
$
3,886

 
$
120,183

 
$
3,889

Schedule providing information on performing and nonperforming TDRs
The following tables present the recorded investment of loans modified into TDRs during the years ended December 31, 2017, 2016 and 2015 by type of concession granted. In cases where more than one type of concession was granted, the loans were categorized based on the most significant concession.
 
Concession type
 
 
 
 
(Dollars in thousands)
Principal
deferral
 
Principal
reduction
 
A/B Note Restructure(1)
 
Interest
rate
 
Forbearance
agreement
 
Total
number
of loans
 
Pre-
modification
recorded
investment
 
Post-
modification
recorded
investment
For the year ended December 31, 2017
 
 
 
 
 
 
 
 
 
 
 
 
Commercial loan portfolio:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial
$
2,308

 
$

 
$

 
$
1,827

 
$
2,176

 
36

 
$
6,416

 
$
6,311

Commercial real estate
706

 

 

 
338

 
953

 
16

 
2,097

 
1,997

Real estate construction and land development
35

 

 

 

 

 
1

 
36

 
35

Subtotal
3,049

 

 

 
2,165

 
3,129

 
53

 
8,549

 
8,343

Consumer loan portfolio:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage
297

 

 

 
383

 

 
11

 
763

 
680

Consumer installment
118

 
37

 

 
37

 

 
34

 
208

 
192

Home equity
389

 

 

 
52

 

 
14

 
537

 
441

Subtotal
804

 
37

 

 
472

 

 
59

 
1,508

 
1,313

Total loans
$
3,853

 
$
37

 
$

 
$
2,637

 
$
3,129

 
112

 
$
10,057

 
$
9,656

For the year ended December 31, 2016
 
 
 
 
 
 
 
 
 
 
 
 
Commercial loan portfolio:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial
$
11,533

 
$
1,527

 
$
43

 
$

 
$
1,750

 
54

 
$
14,853

 
$
14,853

Commercial real estate
2,993

 
1,866

 

 

 

 
16

 
4,859

 
4,859

Subtotal
14,526

 
3,393

 
43

 

 
1,750

 
70

 
19,712

 
19,712

Consumer loan portfolio:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage
477

 

 

 

 

 
4

 
477

 
477

Consumer installment
87

 

 

 

 

 
14

 
87

 
87

Home equity
179

 

 

 
364

 

 
10

 
543

 
543

Subtotal
743

 

 

 
364

 

 
28

 
1,107

 
1,107

Total loans
$
15,269

 
$
3,393

 
$
43

 
$
364

 
$
1,750

 
98

 
$
20,819

 
$
20,819

For the year ended December 31, 2015
 
 
 
 
 
 
 
 
 
 
 
 
Commercial loan portfolio:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Commercial
$
6,031

 
$

 
$

 
$
117

 
$
5,298

 
53

 
$
11,446

 
$
11,446

Commercial real estate
5,904

 
450

 

 
102

 
740

 
21

 
7,196

 
7,196

Real estate construction and land development
705

 

 

 

 

 
3

 
705

 
705

Subtotal
12,640

 
450

 

 
219

 
6,038

 
77

 
19,347

 
19,347

Consumer loan portfolio:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage
1,246

 

 

 
635

 

 
20

 
1,881

 
1,881

Consumer installment
210

 

 

 

 

 
19

 
210

 
210

Home equity
1,110

 

 

 
46

 

 
26

 
1,158

 
1,156

Subtotal
2,566

 

 

 
681

 

 
65

 
3,249

 
3,247

Total loans
$
15,206

 
$
450

 
$

 
$
900

 
$
6,038

 
142

 
$
22,596

 
$
22,594

(1) 
Loan restructurings whereby the original loan is restructured into two notes: an "A" note, which generally reflects the portion of the modified loans which is expected to be collected: and a "B" note, which is fully charged off.
Schedule of Corporation's TDRs
The following schedule presents the Corporation's TDRs at December 31, 2017 and 2016:
(Dollars in thousands)
 
Accruing
 TDRs
 
Nonaccrual TDRs
 
Total
December 31, 2017
 
 
 
 
 
 
Commercial loan portfolio
 
$
34,484

 
$
24,358

 
$
58,842

Consumer loan portfolio
 
14,298

 
4,748

 
19,046

Total
 
$
48,782

 
$
29,106

 
$
77,888

December 31, 2016
 
 
 
 
 
 
Commercial loan portfolio
 
$
45,388

 
$
25,397

 
$
70,785

Consumer loan portfolio
 
17,147

 
5,134

 
22,281

Total
 
$
62,535

 
$
30,531

 
$
93,066

Troubled debt restructurings on financing receivables with defaults payment
The following schedule includes TDRs for which there was a payment default during the years ended December 31, 2017, 2016 and 2015, whereby the borrower was past due with respect to principal and/or interest for 90 days or more, and the loan became a TDR during the twelve-month period prior to the default:
 
 
For the years ended December 31,
 
 
2017
 
2016
 
2015
 
 
Number of loans
 
Principal balance at year end
 
Number of loans
 
Principal balance at year end
 
Number of loans
 
Principal balance at year end
(Dollars in thousands)
 
 
 
 
 
 
Commercial loan portfolio:
 
 
 
 
 
 
 
 
 
 
 
 
Commercial
 
5
 
$
1,617

 
 
$

 
1
 
$
1,206

Commercial real estate
 
 

 
2
 
1,721

 
5
 
1,016

Subtotal - commercial loan portfolio
 
5
 
1,617

 
2
 
1,721

 
6
 
2,222

Consumer loan portfolio (residential mortgage)
 
17
 
434

 
14
 
259

 
3
 
65

Total
 
22
 
$
2,051

 
16
 
$
1,980

 
9
 
$
2,287

Schedule of allowance and recorded investment related to financing receivables segregated by portfolio segment
The following schedule presents by loan portfolio segment, details regarding the balance in the allowance and the recorded investment in loans at December 31, 2017 and 2016 by impairment evaluation method.
(Dollars in thousands)
 
Commercial
Loan
Portfolio
 
Consumer
Loan
Portfolio
 
Total
Allowance for loan losses balance at December 31, 2017 attributable to:
Loans individually evaluated for impairment
 
$
5,537

 
$
2,465

 
$
8,002

Loans collectively evaluated for impairment
 
60,596

 
23,289

 
83,885

Loans accounted for under ASC 310-30
 

 

 

Total
 
$
66,133

 
$
25,754

 
$
91,887

Recorded investment (loan balance) at December 31, 2017:
Loans individually evaluated for impairment
 
$
83,797

 
$
28,080

 
$
111,877

Loans collectively evaluated for impairment
 
5,573,389

 
4,062,163

 
9,635,552

Loans accounted for under ASC 310-30
 
2,803,341

 
1,604,497

 
4,407,838

Total
 
$
8,460,527

 
$
5,694,740

 
$
14,155,267

Allowance for loan losses balance at December 31, 2016 attributable to:
 
 
Loans individually evaluated for impairment
 
$
5,234

 
$
4,158

 
$
9,392

Loans collectively evaluated for impairment
 
45,967

 
22,909

 
68,876

Loans accounted for under ASC 310-30
 

 

 

Total
 
$
51,201

 
$
27,067

 
$
78,268

Recorded investment (loan balance) at December 31, 2016:
 
 
Loans individually evaluated for impairment
 
$
78,523

 
$
28,346

 
$
106,869

Loans collectively evaluated for impairment
 
4,026,526

 
3,325,006

 
7,351,532

Loans accounted for under ASC 310-30
 
3,489,163

 
2,043,215

 
5,532,378

Total
 
$
7,594,212

 
$
5,396,567

 
$
12,990,779

The following schedule presents, by loan portfolio segment, the changes in the allowance for the originated loan portfolio for the years ended December 31, 2017, 2016 and 2015.
(Dollars in thousands)
 
Commercial
loan
portfolio
 
Consumer
loan
portfolio
 
Unallocated
 
Total
Originated Loan Portfolio
 
 
 
 
 
 
 
 
Changes in allowance for loan losses for the year ended December 31, 2017:
 
 
 
 
Beginning balance
 
$
51,201

 
$
27,067

 
$

 
$
78,268

Provision for loan losses
 
19,007

 
4,293

 

 
23,300

Charge-offs
 
(8,570
)
 
(8,297
)
 

 
(16,867
)
Recoveries
 
4,495

 
2,691

 

 
7,186

Ending balance
 
$
66,133

 
$
25,754

 
$

 
$
91,887

Changes in allowance for loan losses for the year ended December 31, 2016:
 
 
 
 
Beginning balance
 
$
47,234

 
$
26,094

 
$

 
$
73,328

Provision (benefit) for loan losses
 
9,788

 
5,087

 

 
14,875

Charge-offs
 
(8,906
)
 
(6,396
)
 

 
(15,302
)
Recoveries
 
3,085

 
2,282

 

 
5,367

Ending balance
 
$
51,201

 
$
27,067

 
$

 
$
78,268

Changes in allowance for loan losses for the year ended December 31, 2015:
 
 
 
 
Beginning balance
 
$
44,156

 
$
28,803

 
$
2,724

 
$
75,683

Provision (benefit) for loan losses
 
7,275

 
1,949

 
(2,724
)
 
6,500

Charge-offs
 
(6,385
)
 
(7,116
)
 

 
(13,501
)
Recoveries
 
2,188

 
2,458

 

 
4,646

Ending balance
 
$
47,234

 
$
26,094

 
$

 
$
73,328