CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES
Net income attributable to Tompkins Financial Corporation	$ 89,264	$ 77,588	$ 81,718
Adjustments to reconcile net income attributable to Tompkins Financial Corporation, to net cash provided by operating activities:
(Credit) provision for credit loss expense	(2,219)	17,213	1,366
Depreciation and amortization of premises, equipment, and software	10,250	10,192	10,044
Accretion related to purchase accounting	(912)	(1,066)	(1,448)
Amortization of intangible assets	1,317	1,484	1,673
Earnings from corporate owned life insurance, net	(1,879)	(2,188)	(2,164)
Net amortization on securities	11,758	10,737	7,435
Deferred income tax expense (benefit)	1,798	(6,284)	3,073
Net (gain) loss on sale of securities transactions	(249)	(443)	(645)
Loss on redemption of trust preferred debentures	1,845	139	0
Penalties on prepayment of FHLB borrowings	2,929	0	0
Net gain on sale of loans	(943)	(2,054)	(227)
Proceeds from sale of loans	32,460	53,726	17,122
Loans originated for sale	(27,354)	(55,232)	(15,007)
Net gain on sale of bank premises and equipment	(21)	(3)	(98)
Net excess tax benefit from stock based compensation	609	118	944
Stock-based compensation expense	5,145	4,733	4,235
Decrease (increase) in accrued interest receivable	9,428	(12,732)	1,629
(Decrease) increase in accrued interest payable	(826)	(759)	78
Other, net	(11,223)	6,218	(8,113)
Net Cash Provided by Operating Activities	121,177	101,387	101,615
INVESTING ACTIVITIES
Proceeds from maturities, calls and principal paydowns of available-for-sale debt securities	453,735	545,617	302,978
Proceeds from sales of available-for-sale debt securities	142,679	42,333	232,598
Proceeds from maturities, calls and principal paydowns of held-to-maturity securities	0	0	9,588
Purchases of available-for-sale debt securities	(1,071,810)	(904,913)	(333,151)
Purchases of held-to-maturity securities	(283,992)	0	(7,589)
Net decrease (increase) in loans and leases	175,162	(340,475)	(89,582)
Proceeds from sales/redemption of Federal Home Loan Bank stock	9,182	42,706	126,755
Purchases of Federal Home Loan Bank and other stock	(3,796)	(25,393)	(108,188)
Proceeds from sale of bank premises and equipment	95	22	448
Purchases of bank premises, equipment and software	(4,741)	(4,551)	(6,014)
Redemption of corporate owned life insurance	169	446	1,370
Net cash used in acquisitions	0	0	(436)
Other, net	23	489	5,209
Net Cash (Used in) Provided by Investing Activities	(583,294)	(643,719)	133,986
FINANCING ACTIVITIES
Net increase in demand, money market, and savings deposits	460,243	1,153,611	286,243
Net (decrease) increase in time deposits	(106,063)	71,809	38,591
Net increase (decrease) in securities sold under agreements to repurchase and Federal funds purchased	942	5,499	(21,496)
Increase in other borrowings	14,000	74,583	526,853
Redemption of trust preferred debentures	(15,150)	(4,124)	0
Repayment of other borrowings	(157,929)	(467,683)	(944,828)
Net proceeds from restricted stock awards	(2,292)	(1,682)	(1,875)
Cash dividends	(32,415)	(31,359)	(30,637)
Repurchase of common stock	(23,773)	(9,414)	(29,867)
Shares issued for dividend reinvestment plan	2	1,825	0
Net proceeds from exercise of stock options	(803)	(253)	(992)
Net Cash Provided by (Used in) Financing Activities	136,762	792,812	(178,008)
Net (Decrease) Increase Cash and Cash Equivalents	(325,355)	250,480	57,593
Cash and cash equivalents at beginning of year	388,462	137,982	80,389
Total Cash & Cash Equivalents at End of Year	63,107	388,462	137,982
Supplemental Cash Flow Information
Cash paid during the year for - Interest	16,920	30,340	51,545
Cash paid, net of refunds, during the year for - Income taxes	28,630	22,893	16,727
Non-cash investing and financing activities:
Transfer of loans to other real estate owned	46	192	803
Transfer of securities from held-to-maturity to available-for-sale	0	0	138,206
Initial recognition of operating lease right-of-use assets	0	0	35,783
Initial recognition of operating lease liabilities	0	0	38,119
Right-of-use assets obtained in exchange for new lease liabilities	$ 2,280	$ 1,256	$ 585