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Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments
12 Months Ended
Dec. 31, 2018
Receivables [Abstract]  
Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments
Loans, Allowance for Loan Losses and Allowance for Unfunded Credit Commitments
We serve a variety of commercial clients in the technology, life science/healthcare, private equity/venture capital and premium wine industries. Our technology clients generally tend to be in the industries of hardware (semiconductors, communications, data, storage, and electronics), software/internet (such as infrastructure software, applications, software services, digital content and advertising technology), and energy and resource innovation ("ERI"). Because of the diverse nature of ERI products and services, for our loan-related reporting purposes, ERI-related loans are reported under our hardware, software/internet, life science/healthcare and other commercial loan categories, as applicable. Our life science/healthcare clients primarily tend to be in the industries of biotechnology, medical devices, healthcare information technology and healthcare services. Loans made to private equity/venture capital firm clients typically enable them to fund investments prior to their receipt of funds from capital calls. Loans to the premium wine industry focus on vineyards and wineries that produce grapes and wines of high quality.
In addition to commercial loans, we make consumer loans through SVB Private Bank and provide real estate secured loans to eligible employees through our EHOP. Our private banking clients are primarily private equity/venture capital professionals and executive leaders in the innovation companies they support. These products and services include real estate secured home equity lines of credit, which may be used to finance real estate investments and loans used to purchase, renovate or refinance personal residences. These products and services also include restricted stock purchase loans and capital call lines of credit.
We also provide community development loans made as part of our responsibilities under the Community Reinvestment Act. These loans are included within “Construction loans” below and are primarily secured by real estate.
The composition of loans, net of unearned income of $173 million and $148 million at December 31, 2018 and 2017, respectively, is presented in the following table:
 
 
December 31,
(Dollars in thousands)
 
2018
 
2017
Commercial loans:
 
 
 
 
Software/internet
 
$
6,154,755

 
$
6,172,531

Hardware
 
1,234,557

 
1,193,599

Private equity/venture capital
 
14,110,560

 
9,952,377

Life science/healthcare
 
2,385,612

 
1,808,827

Premium wine
 
249,266

 
204,105

Other
 
321,978

 
365,724

Total commercial loans
 
24,456,728

 
19,697,163

Real estate secured loans:
 
 
 
 
Premium wine (1)
 
710,397

 
669,053

Consumer loans (2)
 
2,612,971

 
2,300,506

Other
 
40,435

 
42,068

Total real estate secured loans
 
3,363,803

 
3,011,627

Construction loans
 
97,077

 
68,546

Consumer loans
 
420,672

 
328,980

Total loans, net of unearned income (3)
 
$
28,338,280

 
$
23,106,316

 
(1)
Included in our premium wine portfolio are gross construction loans of $99 million and $100 million at December 31, 2018 and 2017, respectively.
(2)
Consumer loans secured by real estate at December 31, 2018 and 2017 were comprised of the following:
 
 
December 31,
(Dollars in thousands)
 
2018
 
2017
Loans for personal residence
 
$
2,251,292

 
$
1,995,840

Loans to eligible employees
 
290,194

 
243,118

Home equity lines of credit
 
71,485

 
61,548

Consumer loans secured by real estate
 
$
2,612,971

 
$
2,300,506


(3)
Included within our total loan portfolio are credit card loans of $335 million and $270 million at December 31, 2018 and 2017, respectively.
Credit Quality
The composition of loans, net of unearned income of $173 million and $148 million at December 31, 2018 and 2017, respectively, broken out by portfolio segment and class of financing receivable, is as follows:
 
 
December 31,
(Dollars in thousands)
 
2018
 
2017
Commercial loans:
 
 
 
 
Software/internet
 
$
6,154,755

 
$
6,172,531

Hardware
 
1,234,557

 
1,193,599

Private equity/venture capital
 
14,110,560

 
9,952,377

Life science/healthcare
 
2,385,612

 
1,808,827

Premium wine
 
959,663

 
873,158

Other
 
459,490

 
476,338

Total commercial loans
 
25,304,637

 
20,476,830

Consumer loans:
 
 
 
 
Real estate secured loans
 
2,612,971

 
2,300,506

Other consumer loans
 
420,672

 
328,980

Total consumer loans
 
3,033,643

 
2,629,486

Total loans, net of unearned income
 
$
28,338,280

 
$
23,106,316


The following table summarizes the aging of our gross loans, broken out by portfolio segment and class of financing receivable as of December 31, 2018 and 2017:
(Dollars in thousands)
 
30 - 59
  Days Past  
Due
 
60 - 89
  Days Past  
Due
 
Equal to or Greater Than 90 Days Past Due
 
  Total Past  
Due
 
Current  
 
  Loans Past Due 90 Days or More Still Accruing Interest
December 31, 2018:
 
 
 
 
 
 
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
 
 
 
 
 
 
Software/internet
 
$
28,134

 
$
6,944

 
$
378

 
$
35,456

 
$
6,059,672

 
$
378

Hardware
 
300

 
34

 
4

 
338

 
1,233,956

 
4

Private equity/venture capital
 
59,481

 
11

 

 
59,492

 
14,054,940

 

Life science/healthcare
 
16,082

 
817

 
19

 
16,918

 
2,410,091

 
19

Premium wine
 
2,953

 
14

 

 
2,967

 
956,285

 

Other
 
7,391

 
163

 
1

 
7,555

 
477,442

 
1

Total commercial loans
 
114,341

 
7,983

 
402

 
122,726

 
25,192,386

 
402

Consumer loans:
 
 
 
 
 
 
 
 
 
 
 
 
Real estate secured loans
 
3,598

 
1,750

 
1,562

 
6,910

 
2,598,496

 
1,562

Other consumer loans
 
361

 

 

 
361

 
420,359

 

Total consumer loans
 
3,959

 
1,750

 
1,562

 
7,271

 
3,018,855

 
1,562

Total gross loans excluding impaired loans
 
118,300

 
9,733

 
1,964

 
129,997

 
28,211,241

 
1,964

Impaired loans
 
2,843

 
1,181

 
25,092

 
29,116

 
140,958

 

Total gross loans
 
$
121,143

 
$
10,914

 
$
27,056

 
$
159,113

 
$
28,352,199

 
$
1,964

December 31, 2017:
 
 
 
 
 
 
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
 
 
 
 
 
 
Software/internet
 
$
14,257

 
$
6,526

 
$
141

 
$
20,924

 
$
6,101,147

 
$
141

Hardware
 
1,145

 
77

 
50

 
1,272

 
1,163,278

 
50

Private equity/venture capital
 
86,566

 
38,580

 

 
125,146

 
9,835,317

 

Life science/healthcare
 
4,390

 
191

 

 
4,581

 
1,841,692

 

Premium wine
 
418

 

 

 
418

 
871,074

 

Other
 
445

 

 

 
445

 
490,292

 

Total commercial loans
 
107,221

 
45,374

 
191

 
152,786

 
20,302,800

 
191

Consumer loans:
 
 
 
 
 
 
 
 
 
 
 
 
Real estate secured loans
 
2,164

 
532

 

 
2,696

 
2,292,980

 

Other consumer loans
 
796

 

 

 
796

 
327,234

 

Total consumer loans
 
2,960

 
532

 

 
3,492

 
2,620,214

 

Total gross loans excluding impaired loans
 
110,181

 
45,906

 
191

 
156,278

 
22,923,014

 
191

Impaired loans
 
1,344

 
11,902

 
30,403

 
43,649

 
131,212

 

Total gross loans
 
$
111,525

 
$
57,808

 
$
30,594

 
$
199,927

 
$
23,054,226

 
$
191






The following table summarizes our impaired loans as they relate to our allowance for loan losses, broken out by portfolio segment and class of financing receivable for the years ended December 31, 2018 and 2017:
(Dollars in thousands)
 
Impaired loans for 
which there is a related allowance for loan losses
 
Impaired loans for 
which there is no related allowance for loan losses
 
Total carrying value of impaired loans
 
Total unpaid principal of impaired loans   
December 31, 2018:
 
 
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
 
 
Software/internet
 
$
49,625

 
$
65,225

 
$
114,850

 
$
131,858

Hardware
 
1,256

 
10,250

 
11,506

 
12,159

Private equity/venture capital
 

 
3,700

 
3,700

 
3,700

Life science/healthcare
 
17,791

 
16,276

 
34,067

 
44,446

Premium wine
 

 
1,301

 
1,301

 
1,365

Other
 
411

 

 
411

 
411

Total commercial loans
 
69,083

 
96,752

 
165,835

 
193,939

Consumer loans:
 
 
 
 
 
 
 
 
Real estate secured loans
 
3,919

 
320

 
4,239

 
5,969

Other consumer loans
 

 

 

 

Total consumer loans
 
3,919

 
320

 
4,239

 
5,969

Total
 
$
73,002

 
$
97,072

 
$
170,074

 
$
199,908

December 31, 2017:
 
 
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
 
 
Software/internet
 
$
49,645

 
$
61,009

 
$
110,654

 
$
129,006

Hardware
 
15,637

 
20,713

 
36,350

 
41,721

Private equity/venture capital
 
658

 

 
658

 
984

Life science/healthcare
 
20,521

 
1,166

 
21,687

 
26,360

Premium wine
 

 
2,877

 
2,877

 
2,911

Other
 
32

 

 
32

 
165

Total commercial loans
 
86,493

 
85,765

 
172,258

 
201,147

Consumer loans:
 
 
 
 
 
 
 
 
Real estate secured loans
 
1,331

 
850

 
2,181

 
3,712

Other consumer loans
 
422

 

 
422

 
436

Total consumer loans
 
1,753

 
850

 
2,603

 
4,148

Total
 
$
88,246

 
$
86,615

 
$
174,861

 
$
205,295



The following table summarizes our average impaired loans and interest income recognized on impaired loans, broken out by portfolio segment and class of financing receivable during 2018, 2017 and 2016:
Year ended December 31,
(Dollars in thousands)
 
Average impaired loans
 
Interest income recognized on impaired loans
 
2018

2017

2016
 
2018
 
2017
 
2016
Commercial loans:
 
 
 
 
 
 
 
 
 
 
 
 
Software/internet
 
$
112,493

 
$
119,557

 
$
89,462

 
$
1,513

 
$
2,263

 
$
1,054

Hardware
 
28,540

 
35,022

 
39,108

 
312

 
1,061

 
2,624

Private equity/venture capital
 
1,327

 
556

 

 

 

 

Life science/healthcare
 
30,144

 
30,842

 
40,620

 
756

 
90

 
155

Premium wine
 
2,605

 
3,249

 
2,056

 
68

 
152

 
28

Other
 
171

 
576

 
3,442

 

 

 
6

Total commercial loans
 
175,280

 
189,802

 
174,688

 
2,649

 
3,566

 
3,867

Consumer loans:
 
 
 
 
 
 
 
 
 
 
 
 
Real estate secured loans
 
4,028

 
1,514

 
588

 
15

 

 

Other consumer loans
 
358

 
1,804

 
1,136

 

 

 
17

Total consumer loans
 
4,386

 
3,318

 
1,724

 
15

 

 
17

Total average impaired loans
 
$
179,666

 
$
193,120

 
$
176,412

 
$
2,664

 
$
3,566

 
$
3,884


The following tables summarize the activity relating to our allowance for loan losses for 2018, 2017 and 2016 broken out by portfolio segment:
Year ended December 31, 2018
(Dollars in thousands)
 
Beginning Balance December 31, 2017
 
Charge-offs
 
Recoveries
 
Provision for (Reduction of) Loan Losses
 
Foreign Currency Translation Adjustments
 
Ending Balance December 31, 2018
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
 
 
 
 
 
 
Software/internet
 
$
96,104

 
$
(42,315
)
 
$
5,664

 
$
45,068

 
$
(954
)
 
$
103,567

Hardware
 
27,614

 
(16,148
)
 
1,849

 
6,555

 
(145
)
 
19,725

Private equity/venture capital
 
82,468

 
(112
)
 
13

 
16,485

 
(273
)
 
98,581

Life science/healthcare
 
24,924

 
(6,662
)
 
348

 
14,347

 
(777
)
 
32,180

Premium wine
 
3,532

 

 

 
(182
)
 
5

 
3,355

Other
 
3,941

 
(2,391
)
 
3,275

 
(1,320
)
 
53

 
3,558

Total commercial loans
 
238,583

 
(67,628
)
 
11,149

 
80,953

 
(2,091
)
 
260,966

Consumer loans
 
16,441

 
(289
)
 
487

 
3,339

 
(41
)
 
19,937

Total allowance for loan losses
 
$
255,024

 
$
(67,917
)
 
$
11,636

 
$
84,292

 
$
(2,132
)
 
$
280,903

Year ended December 31, 2017
(Dollars in thousands)
 
Beginning Balance December 31, 2016
 
Charge-offs
 
Recoveries
 
Provision for (Reduction of) Loan Losses
 
Foreign Currency Translation Adjustments
 
Ending Balance December 31, 2017
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
 
 
 
 
 
 
Software/internet
 
$
97,388

 
$
(45,012
)
 
$
4,649

 
$
38,462

 
$
617

 
$
96,104

Hardware
 
31,166

 
(10,414
)
 
487

 
6,051

 
324

 
27,614

Private equity/venture capital
 
50,299

 
(323
)
 

 
31,625

 
867

 
82,468

Life science/healthcare
 
25,446

 
(8,210
)
 
189

 
7,414

 
85

 
24,924

Premium wine
 
4,115

 

 

 
(540
)
 
(43
)
 
3,532

Other
 
4,768

 
(1,156
)
 
1,850

 
(1,459
)
 
(62
)
 
3,941

Total commercial loans
 
213,182

 
(65,115
)
 
7,175

 
81,553

 
1,788

 
238,583

Consumer loans
 
12,184

 
(1,567
)
 
1,363

 
4,386

 
75

 
16,441

Total allowance for loan losses
 
$
225,366

 
$
(66,682
)
 
$
8,538

 
$
85,939

 
$
1,863

 
$
255,024


    
Year ended December 31, 2016
(Dollars in thousands)
 
Beginning Balance December 31, 2015
 
Charge-offs
 
Recoveries
 
Provision for (Reduction of) Loan Losses
 
Foreign Currency Translation Adjustments
 
Ending Balance December 31, 2016
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
 
 
 
 
 
 
Software/internet
 
$
103,045

 
$
(68,784
)
 
$
7,278

 
$
58,350

 
$
(2,501
)
 
$
97,388

Hardware
 
23,085

 
(13,233
)
 
1,667

 
20,851

 
(1,204
)
 
31,166

Private equity/venture capital
 
35,282

 

 

 
15,114

 
(97
)
 
50,299

Life science/healthcare
 
36,576

 
(9,693
)
 
1,129

 
(2,543
)
 
(23
)
 
25,446

Premium wine
 
5,205

 

 

 
(1,260
)
 
170

 
4,115

Other
 
4,252

 
(5,045
)
 
1,880

 
3,373

 
308

 
4,768

Total commercial loans
 
207,445

 
(96,755
)
 
11,954

 
93,885

 
(3,347
)
 
213,182

Consumer loans
 
10,168

 
(102
)
 
258

 
1,812

 
48

 
12,184

Total allowance for loan losses
 
$
217,613

 
$
(96,857
)
 
$
12,212

 
$
95,697

 
$
(3,299
)
 
$
225,366


The following table summarizes the activity relating to our allowance for unfunded credit commitments for 2018, 2017 and 2016:
 
 
Year ended December 31,
(Dollars in thousands)
 
2018
 
2017
 
2016
Allowance for unfunded credit commitments, beginning balance
 
$
51,770

 
$
45,265

 
$
34,415

Provision for unfunded credit commitments
 
3,578

 
6,365

 
10,982

Foreign currency translation adjustments
 
(165
)
 
140

 
(132
)
Allowance for unfunded credit commitments, ending balance (1)
 
$
55,183

 
$
51,770

 
$
45,265

 
(1)
See Note 19—“Off-Balance Sheet Arrangements, Guarantees and Other Commitments” of the “Notes to the Consolidated Financial Statements” under Part II, Item 8 of this report for additional disclosures related to our commitments to extend credit.
The following table summarizes the allowance for loan losses individually and collectively evaluated for impairment as of December 31, 2018 and 2017, broken out by portfolio segment:
 
 
December 31, 2018
 
December 31, 2017
 
 
Individually Evaluated for Impairment
 
Collectively Evaluated for  
Impairment
 
Individually Evaluated for Impairment
 
Collectively Evaluated for  
Impairment
(Dollars in thousands)
 
Allowance for loan losses
 
Recorded investment in loans
 
Allowance for loan losses
 
Recorded investment in loans
 
Allowance for loan losses
 
Recorded investment in loans
 
Allowance for loan losses
 
Recorded investment in loans
Commercial loans:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Software/internet
 
$
28,527

 
$
114,850

 
$
75,040

 
$
6,039,905

 
$
23,088

 
$
110,654

 
$
73,016

 
$
6,061,877

Hardware
 
1,253

 
11,506

 
18,472

 
1,223,051

 
8,450

 
36,350

 
19,164

 
1,157,249

Private equity/venture capital
 

 
3,700

 
98,581

 
14,106,860

 
330

 
658

 
82,138

 
9,951,719

Life science/healthcare
 
7,484

 
34,067

 
24,696

 
2,351,545

 
9,315

 
21,687

 
15,609

 
1,787,140

Premium wine
 

 
1,301

 
3,355

 
958,362

 

 
2,877

 
3,532

 
870,281

Other
 
411

 
411

 
3,147

 
459,079

 
32

 
32

 
3,909

 
476,306

Total commercial loans
 
37,675

 
165,835

 
223,291

 
25,138,802

 
41,215

 
172,258

 
197,368

 
20,304,572

Total consumer loans
 
266

 
4,239

 
19,671

 
3,029,404

 
578

 
2,603

 
15,863

 
2,626,883

Total
 
$
37,941

 
$
170,074

 
$
242,962

 
$
28,168,206

 
$
41,793

 
$
174,861

 
$
213,231

 
$
22,931,455


Credit Quality Indicators
For each individual client, we establish an internal credit risk rating for that loan, which is used for assessing and monitoring credit risk as well as performance of the loan and the overall portfolio. Our internal credit risk ratings are also used to summarize the risk of loss due to failure by an individual borrower to repay the loan. For our internal credit risk ratings, each individual loan is given a risk rating of 1 through 10. Loans risk-rated 1 through 4 are performing loans and translate to an internal rating of “Pass,” with loans risk-rated 1 being cash secured. Loans risk-rated 5 through 7 are performing loans; however, we consider them as demonstrating higher risk, which requires more frequent review of the individual exposures; these translate to an internal rating of “Performing (Criticized).” When full repayment of a criticized loan has been deemed improbable under the original contractual terms but full repayment remains probable overall, the loan is considered to be a “Performing Impaired (Criticized)” loan. All of our nonaccrual loans are risk-rated 8 or 9 and are classified under the nonperforming impaired category. (For a further description of nonaccrual loans, refer to Note 2—“Summary of Significant Accounting Policies” of the “Notes to the Consolidated Financial Statements” under Part II, Item 8 of this report). Loans rated 10 are charged-off and are not included as part of our loan portfolio balance. We review our credit quality indicators for performance and appropriateness of risk ratings as part of our evaluation process for our allowance for loan losses.

The following table summarizes the credit quality indicators, broken out by portfolio segment and class of financing receivables as of December 31, 2018 and 2017:
(Dollars in thousands)
 
Pass
 
  Performing 
(Criticized)  
 
Performing Impaired (Criticized)
 
Nonperforming Impaired (Nonaccrual)
 
Total
December 31, 2018:
 
 
 
 
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
 
 
 
 
Software/internet
 
$
5,574,332

 
$
520,796

 
$
48,069

 
$
66,781

 
$
6,209,978

Hardware
 
1,146,985

 
87,309

 
10,250

 
1,256

 
1,245,800

Private equity/venture capital
 
14,098,281

 
16,151

 

 
3,700

 
14,118,132

Life science/healthcare
 
2,291,356

 
135,653

 
16,276

 
17,791

 
2,461,076

Premium wine
 
909,965

 
49,287

 
1,017

 
284

 
960,553

Other
 
467,653

 
17,344

 

 
411

 
485,408

Total commercial loans
 
24,488,572

 
826,540

 
75,612


90,223

 
25,480,947

Consumer loans:
 
 
 
 
 
 
 
 
 
 
Real estate secured loans
 
2,584,261

 
21,145

 
320

 
3,919

 
2,609,645

Other consumer loans
 
419,771

 
949

 

 

 
420,720

Total consumer loans
 
3,004,032

 
22,094

 
320

 
3,919

 
3,030,365

Total gross loans
 
$
27,492,604

 
$
848,634

 
$
75,932

 
$
94,142

 
$
28,511,312

December 31, 2017:
 
 
 
 
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
 
 
 
 
Software/internet
 
$
5,655,739

 
$
466,332

 
$
31,794

 
$
78,860

 
$
6,232,725

Hardware
 
1,112,574

 
51,976

 
20,165

 
16,185

 
1,200,900

Private equity/venture capital
 
9,955,082

 
5,381

 

 
658

 
9,961,121

Life science/healthcare
 
1,720,613

 
125,660

 
1,167

 
20,520

 
1,867,960

Premium wine
 
834,537

 
36,955

 
2,476

 
401

 
874,369

Other
 
469,721

 
21,016

 

 
32

 
490,769

Total commercial loans
 
19,748,266

 
707,320

 
55,602

 
116,656

 
20,627,844

Consumer loans:
 
 
 
 
 
 
 
 
 
 
Real estate secured loans
 
2,282,375

 
13,301

 

 
2,181

 
2,297,857

Other consumer loans
 
326,851

 
1,179

 

 
422

 
328,452

Total consumer loans
 
2,609,226

 
14,480

 

 
2,603

 
2,626,309

Total gross loans
 
$
22,357,492

 
$
721,800

 
$
55,602

 
$
119,259

 
$
23,254,153


Troubled Debt Restructurings
As of December 31, 2018 we had 17 TDRs with a total carrying value of $83.7 million where concessions have been granted to borrowers experiencing financial difficulties, in an attempt to maximize collection. This compares to 22 TDRs with a total carrying value of $147.8 million as of December 31, 2017. There were unfunded commitments available for funding of $2.7 million to the clients associated with these TDRs as of December 31, 2018. The following table summarizes our loans modified in TDRs, broken out by portfolio segment and class of financing receivables at December 31, 2018 and 2017:
 
 
December 31,
(Dollars in thousands)
 
2018
 
2017
Loans modified in TDRs:
 
 
 
 
Commercial loans:
 
 
 
 
Software/internet
 
$
58,089

 
$
73,455

Hardware
 
9,665

 
51,132

Private equity/venture capital
 

 
350

Life science/healthcare
 
12,738

 
19,235

Premium wine
 
2,883

 
3,198

Total commercial loans
 
83,375

 
147,370

Consumer loans:
 
 
 
 
Other consumer loans
 
320

 
423

Total loans modified in TDRs
 
$
83,695

 
$
147,793


The following table summarizes the recorded investment in loans modified in TDRs, broken out by portfolio segment and class of financing receivable, for modifications made during 2018, 2017 and 2016:
 
 
Year ended December 31,
(Dollars in thousands)
 
2018
 
2017
 
2016
Loans modified in TDRs during the period:
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
Software/internet
 
$
30,429

 
$
42,184

 
$
23,574

Hardware
 
9,665

 
51,132

 
14,870

Private equity/venture capital
 

 
350

 

Life science/healthcare
 
660

 

 
1,638

Premium wine
 

 
177

 
677

Total commercial loans
 
40,754

 
93,843

 
40,759

Consumer loans:
 
 
 
 
 
 
Other consumer loans
 
320

 

 
786

Total loans modified in TDRs during the period (1)
 
$
41,074

 
$
93,843

 
$
41,545

 
(1)
There were $4.6 million, $3.0 million, and $3.6 million of partial charge-offs during 2018, 2017 and 2016, respectively.
During 2018, all new TDRs of $41.1 million were modified through payment deferrals granted to our clients. During 2017, $93.5 million of new TDRs were modified through payment deferrals granted to our clients and $0.3 million were modified through partial forgiveness of principal. During 2016, all new TDRs were modified through payment deferrals granted to our clients.
The related allowance for loan losses for the majority of our TDRs is determined on an individual basis by comparing the carrying value of the loan to the present value of the estimated future cash flows, discounted at the pre-modification contractual interest rate. For certain TDRs, the related allowance for loan losses is determined based on the fair value of the collateral if the loan is collateral dependent.
The following table summarizes the recorded investment in loans modified in TDRs within the previous 12 months that subsequently defaulted during their respective periods, broken out by portfolio segment and class of financing receivable, during 2018, 2017 and 2016:
 
 
December 31
(Dollars in thousands)
 
2018 (1)
 
2017 (1)
 
2016
TDRs modified within the previous 12 months that defaulted during the period:
 
 
 
 
 
 
Commercial loans:
 
 
 
 
 
 
Hardware
 
$

 
$

 
$
134

Premium wine
 

 

 
491

Life science/healthcare
 

 

 

Total commercial loans
 

 

 
625

Consumer loans:
 
 
 
 
 
 
Other consumer loans
 

 

 
786

Total TDRs modified within the previous 12 months that defaulted in the period
 
$

 
$

 
$
1,411


 
(1)
For both the 2018 and 2017 periods, there were no loans modified in TDRs within the previous 12 months that subsequently defaulted during the period.
Charge-offs and defaults on previously restructured loans are evaluated to determine the impact to the allowance for loan losses, if any. The evaluation of these defaults may impact the assumptions used in calculating the reserve on other TDRs and impaired loans as well as management’s overall outlook of macroeconomic factors that affect the reserve on the loan portfolio as a whole. After evaluating the charge-offs and defaults experienced on our TDRs we determined that no change to our reserving methodology for TDRs was necessary to determine the allowance for loan losses as of December 31, 2018.