CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
INTEREST AND DIVIDEND INCOME
Loans	$ 214,370	$ 191,410	$ 169,630
Due from banks	31	37	6
Trading securities	0
Trading securities		0	220
Available-for-sale securities	30,377
Available-for-sale securities		29,721	27,846
Held-to-maturity securities	3,437	3,475	3,603
Federal Home Loan Bank stock and Federal Reserve Bank stock	3,377	2,121	1,434
Total Interest and Dividend Income	251,592	226,764	202,739
INTEREST EXPENSE
Time certificates of deposits of $250,000 or more	1,712	1,880	1,654
Other deposits	14,883	10,253	9,059
Federal funds purchased and securities sold under agreements to repurchase	152	235	2,228
Trust preferred debentures	1,227	1,158	2,390
Other borrowings	21,818	11,934	6,772
Total Interest Expense	39,792	25,460	22,103
Net Interest Income	211,800	201,304	180,636
Provision for loan and lease losses	3,942	4,161	4,321
Net Interest Income After Provision for Loan and Lease Losses	207,858	197,143	176,315
NONINTEREST INCOME
Insurance commissions and fees	29,369	28,778	29,492
Investment services income	17,288	15,665	15,203
Service charges on deposit accounts	8,435	8,437	8,793
Card services income	9,693	9,100	8,058
Mark-to-market loss on trading securities	0	0	(182)
Mark-to-market gain on liabilities held at fair value	0	0	227
Other income	13,130	7,631	6,291
Net (loss) gain on securities transactions	(466)
Net (loss) gain on securities transactions		(407)	926
Total Noninterest Income	77,449	69,204	68,808
NONINTEREST EXPENSES
Salaries and wages	85,625	81,948	77,379
Other employee benefits	22,090	21,458	19,909
Net occupancy expense of premises	13,309	13,214	12,521
Furniture and fixture expense	7,351	7,028	6,450
FDIC insurance	2,618	2,527	3,024
Amortization of intangible assets	1,771	1,932	2,090
Other operating expenses	48,303	42,998	37,234
Total Noninterest Expenses	181,067	171,105	158,607
Income Before Income Tax Expense	104,240	95,242	86,516
Income Tax Expense	21,805	42,620	27,045
Net Income Attributable to Noncontrolling Interests and Tompkins Financial Corporation	82,435	52,622	59,471
Less: Net income attributable to noncontrolling interests	127	128	131
Net Income Attributable to Tompkins Financial Corporation	$ 82,308	$ 52,494	$ 59,340
Basic Earnings Per Share (in dollars per share)	$ 5.39	$ 3.46	$ 3.94
Diluted Earnings Per Share (in dollars per share)	$ 5.35	$ 3.43	$ 3.91