CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
OPERATING ACTIVITIES
Net income attributable to Tompkins Financial Corporation	$ 41,150	$ 32,554
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit loss expense	8,067	3,026
Depreciation and amortization of premises, equipment, and software	4,253	5,610
Amortization of intangible assets	168	156
Earnings from corporate owned life insurance	(1,393)	(1,777)
Net amortization on securities	(1,071)	(604)
Amortization/accretion related to purchase accounting	(127)	(462)
Net (gain) loss on securities transactions	(15)	20
Net gain on sale of loans originated for sale	(1,045)	(314)
Proceeds from sale of loans originated for sale	35,630	8,528
Loans originated for sale	(35,225)	(8,764)
Net loss (gain) on sale of bank premises and equipment	15	(189)
Net excess tax (expense) benefit from stock-based compensation	(11)	(186)
Stock-based compensation expense	1,915	1,715
Increase in accrued interest receivable	(1,781)	(3,517)
Increase in accrued interest payable	387	1,029
Other, net	(9,745)	13,698
Net Cash Provided by Operating Activities	41,172	50,523
INVESTING ACTIVITIES
Proceeds from maturities, calls and principal paydowns of available-for-sale debt securities	119,492	91,068
Purchases of available-for-sale debt securities	(131,408)	(5,976)
Net increase in loans	(170,255)	(157,027)
Proceeds from sale/redemptions of Federal Home Loan Bank stock	63,342	48,290
Purchases of Federal Home Loan Bank and other stock	(58,216)	(55,953)
Proceeds from sale of bank premises and equipment	31	265
Purchases of bank premises, equipment and software	(2,022)	(2,368)
Purchase of corporate owned life insurance	0	(5,746)
Proceeds from redemption of corporate owned life insurance	1,006	3,115
Proceeds from sale of other real estate owned	16,130	174
Other, net	0	(587)
Net Cash (Used in) Provided by Investing Activities	(161,900)	(84,745)
FINANCING ACTIVITIES
Net increase in demand, money market, and savings deposits	86,424	(95,230)
Net increase (decrease) in time deposits	157,689	(18,445)
Net increase (decrease) in Federal funds purchased and securities sold under agreements to repurchase	90,075	(15,007)
Increase in other borrowings	276,776	351,027
Repayment of other borrowings	(394,327)	(179,500)
Cash dividends	(17,690)	(17,226)
Common stock issued	58	81
Net shares issued related to restricted stock awards	(121)	(105)
Net proceeds from exercise of stock options	(3)	0
Net Cash Provided by (Used in) Financing Activities	198,881	25,595
Net Increase (Decrease) in Cash and Cash Equivalents	78,153	(8,627)
Cash and cash equivalents at beginning of period	134,398	79,542
Total Cash and Cash Equivalents at End of Period	212,551	70,915
Supplemental Information:
Cash paid during the year for - Interest	66,051	66,042
Cash paid during the year for - Taxes	13,755	2,560
Transfer of loans to other real estate owned	0	80
Transfer of loans to other assets	12,674	0
Right-of-use assets obtained in exchange for new lease liabilities	$ 1,724	$ 181