Segment and Related Information
 12 Months Ended
Dec. 31, 2017
Segment Reporting [Abstract]  
Segment and Related Information
Segment and Related Information
 
The Company manages its operations through three reportable business segments in accordance with the standards set forth in FASB ASC 280, “Segment Reporting”: (i) banking and financial services (“Banking”), (ii) insurance services (“Tompkins Insurance Agencies, Inc”) and (iii) wealth management (“Tompkins Financial Advisors”). The Company’s insurance services and wealth management services are managed separately from the Banking segment.
 
Banking
 
The banking segment is primarily comprised of the Company's four banking subsidiaries: Tompkins Trust Company, a commercial bank with 14 banking offices operated in Ithaca, NY and surrounding communities. The Bank of Castile (DBA Tompkins Bank of Castile), a commercial bank with 17 banking offices located in the Genesee Valley region of New York State as well as Monroe County; Mahopac Bank (DBA Tompkins Mahopac Bank), a commercial bank with 14 full-service banking offices located in the counties north of New York City; and VIST Bank (DBA Tompkins VIST Bank), a banking organization with 20 banking offices headquartered and operating in Southeastern Pennsylvania.
 
Banking services consist primarily of attracting deposits from the areas served by the Company’s banking subsidiaries and using those deposits to originate a variety of commercial loans, agricultural loans, consumer loans, real estate loans and leases in those same areas. The Company’s subsidiary banks provide a variety of retail banking services including checking accounts, savings accounts, time deposits, IRA products, residential mortgage loans, personal loans, home equity loans, credit cards, debit cards and safe deposit services delivered through its branch facilities, ATMs, voice response, mobile banking, Internet banking and remote deposit services. The Company’s subsidiary banks also provide a variety of commercial banking services such as lending activities for a variety of business purposes, including real estate financing, construction, equipment financing, accounts receivable financing and commercial leasing. Other commercial services include deposit and cash management services, letters of credit, sweep accounts, credit cards, Internet-based account services, mobile banking and remote deposit services. The banking subsidiaries do not engage in sub-prime lending.
 
Insurance
 
The Company provides property and casualty insurance services and employee benefits consulting through Tompkins Insurance Agencies, Inc., a wholly-owned subsidiary of the Company, headquartered in Batavia, New York. Tompkins Insurance is an independent insurance agency, representing many major insurance carriers. Tompkins Insurance provides employee benefit consulting to employers in Western and Central New York and Southeastern Pennsylvania, assisting them with their medical, group life insurance and group disability insurance. Through the 2012 acquisition of VIST Financial, Tompkins Insurance expanded its operations with the addition of VIST Insurance, a full service agency offering a similar array of insurance products as Tompkins Insurance in southeastern Pennsylvania. Tompkins Insurance offers services to customers of the Company’s banking subsidiaries by sharing offices with The Bank of Castile, Tompkins Trust Company and VIST Bank. In addition to these shared offices, Tompkins Insurance has five stand-alone offices in Western New York, and one stand-alone office in Tompkins County, New York.
 
Wealth Management
 
The wealth management segment is generally organized under the Tompkins Financial Advisors brand. Tompkins Financial Advisors offers a comprehensive suite of financial services to customers, including trust and estate services, investment management and financial and insurance planning for individuals, corporate executives, small business owners and high net worth individuals. Tompkins Financial Advisors has offices in each of the Company’s four subsidiary banks.
 
Summarized financial information concerning the Company’s reportable segments and the reconciliation to the Company’s consolidated results is shown in the following table. Investment in subsidiaries is netted out of the presentations below. The “Intercompany” column identifies the intercompany activities of revenues, expenses and other assets between the banking and financial services segments. The Company accounts for intercompany fees and services at an estimated fair value according to regulatory requirements for the services provided. Intercompany items relate primarily to the use of human resources, information systems, accounting and marketing services provided by any of the banks and the holding company. All other accounting policies are the same as those described in Note 1 “Summary of significant accounting policies” in this Report.
 
 As of and for the year ended December 31, 2017
 (in thousands) 
Banking
 
Insurance
 
Wealth Management
 
Intercompany
 
Consolidated
 Interest income 
$
226,764

 
$
2

 
$
0

 
$
(2
)
 
$
226,764

 Interest expense 
25,462

 
0

 
0

 
(2
)
 
25,460

 Net interest income
201,302

 
2

 
0

 
0

 
201,304

 Provision for loan and lease losses 
4,161

 
0

 
0

 
0

 
4,161

 Noninterest income 
25,498

 
29,106

 
16,345

 
(1,745
)
 
69,204

 Noninterest expense 
135,750

 
24,503

 
12,597

 
(1,745
)
 
171,105

 Income before income tax expense 
86,889

 
4,605

 
3,748

 
0

 
95,242

 Income tax expense 
39,731

 
1,705

 
1,184

 
0

 
42,620

 Net Income attributable to noncontrolling interests and Tompkins Financial Corporation 
47,158

 
2,900

 
2,564

 
0

 
52,622

 Less: Net income attributable to noncontrolling interests 
128

 
0

 
0

 
0

 
128

 Net Income attributable to Tompkins Financial Corporation 
$
47,030

 
$
2,900

 
$
2,564

 
$
0

 
$
52,494

 
 
 
 
 
 
 
 
 
 
 Depreciation and amortization 
$
7,927

 
$
285

 
$
57

 
$
0

 
$
8,269

 Assets 
6,602,242

 
39,599

 
17,779

 
(11,330
)
 
6,648,290

 Goodwill 
64,369

 
19,711

 
8,211

 
0

 
92,291

 Other intangibles, net 
5,170

 
3,812

 
281

 
0

 
9,263

 Net loans and leases 
4,629,349

 
0

 
0

 
0

 
4,629,349

 Deposits 
4,848,654

 
0

 
0

 
(10,847
)
 
4,837,807

 Total equity 
530,386

 
31,083

 
14,733

 
0

 
576,202


 As of and for the year ended December 31, 2016
 (in thousands) 
Banking
 
Insurance
 
Wealth Management
 
Intercompany
& Merger
 
Consolidated
 Interest income 
$
202,739

 
$
2

 
$
0

 
$
(2
)
 
$
202,739

 Interest expense 
22,105

 
0

 
0

 
(2
)
 
22,103

 Net interest income
180,634

 
2

 
0

 
0

 
180,636

 Provision for loan and lease losses 
4,321

 
0

 
0

 
0

 
4,321

 Noninterest income 
24,402

 
29,741

 
15,842

 
(1,177
)
 
68,808

 Noninterest expense 
123,004

 
24,564

 
12,216

 
(1,177
)
 
158,607

 Income before income tax expense 
77,711

 
5,179

 
3,626

 
0

 
86,516

 Income tax expense 
23,928

 
1,906

 
1,211

 
0

 
27,045

 Net Income attributable to noncontrolling interests and Tompkins Financial Corporation 
53,783

 
3,273

 
2,415

 
0

 
59,471

 Less: Net income attributable to noncontrolling interests 
131

 
0

 
0

 
0

 
131

  Net Income attributable to Tompkins Financial Corporation 
$
53,652

 
$
3,273

 
$
2,415

 
$
0

 
$
59,340

 
 
 
 
 
 
 
 
 
 
 Depreciation and amortization 
$
6,401

 
$
353

 
$
75

 
$
0

 
$
6,829

 Assets 
6,190,824

 
38,988

 
15,403

 
(8,459
)
 
6,236,756

 Goodwill 
64,369

 
20,043

 
8,211

 
0

 
92,623

 Other intangibles, net 
6,433

 
4,560

 
356

 
0

 
11,349

 Net loans and leases 
4,222,278

 
0

 
0

 
0

 
4,222,278

 Deposits 
4,633,527

 
0

 
0

 
(8,388
)
 
4,625,139

 Total equity 
506,411

 
30,825

 
12,169

 
0

 
549,405

 As of and for the year ended December 31, 2015
 (in thousands) 
Banking
 
Insurance
 
Wealth Management
 
Intercompany & Merger
 
Consolidated
 Interest income 
$
188,598

 
$
2

 
$
148

 
$
(2
)
 
$
188,746

 Interest expense 
20,367

 
0

 
0

 
(2
)
 
20,365

 Net interest income
168,231

 
2

 
148

 
0

 
168,381

 Provision for loan and lease losses 
2,945

 
0

 
0

 
0

 
2,945

 Noninterest income 
27,096

 
29,818

 
16,037

 
(1,011
)
 
71,940

 Noninterest expense 
115,706

 
23,783

 
11,384

 
(1,011
)
 
149,862

 Income before income tax expense 
76,676

 
6,037

 
4,801

 
0

 
87,514

 Income tax expense 
24,923

 
2,416

 
1,623

 
0

 
28,962

 Net Income attributable to noncontrolling interests and Tompkins Financial Corporation 
51,753

 
3,621

 
3,178

 
0

 
58,552

 Less: Net income attributable to noncontrolling interests 
131

 
0

 
0

 
0

 
131

 Net Income attributable to Tompkins Financial Corporation 
$
51,622

 
$
3,621

 
$
3,178

 
$
0

 
$
58,421

 
 
 
 
 
 
 
 
 
 
 Depreciation and amortization 
5,985

 
367

 
116

 
0

 
$
6,468

 Assets 
5,646,459

 
36,625

 
13,951

 
(7,040
)
 
5,689,995

 Goodwill 
64,369

 
19,212

 
8,211

 
0

 
91,792

 Other intangibles, net 
7,820

 
4,187

 
441

 
0

 
12,448

 Net loans and leases 
3,740,038

 
0

 
0

 
0

 
3,740,038

 Deposits 
4,401,896

 
0

 
0

 
(6,590
)
 
4,395,306

 Total equity 
476,138

 
28,182

 
12,146

 
0

 
516,466