CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
INTEREST AND DIVIDEND INCOME
Loans	$ 301,970	$ 260,434	$ 217,607
Due from banks	741	674	371
Available-for-sale debt securities	36,779	29,677	27,929
Held-to-maturity debt securities	4,881	4,876	4,771
Federal Home Loan Bank and other stock	3,203	1,697	646
Total Interest and Dividend Income	347,574	297,358	251,324
INTEREST EXPENSE
Time certificates of deposits of $250,000 or more	16,914	11,421	2,298
Other deposits	87,069	59,387	13,870
Federal funds purchased and securities sold under agreements to repurchase	46	58	60
Other borrowings	32,443	16,978	4,815
Total Interest Expense	136,472	87,844	21,043
Net Interest Income	211,102	209,514	230,281
Less: Provision for credit loss expense	6,611	4,339	2,789
Net Interest Income After Provision for Credit Loss Expense	204,491	205,175	227,492
NONINTEREST INCOME
Insurance commissions and fees	39,100	37,351	36,201
Wealth management fees	19,589	17,951	18,091
Service charges on deposit accounts	7,288	6,913	7,365
Card services income	12,057	11,488	11,024
Other income	10,061	6,511	5,925
Net gain (loss) on securities transactions	32	(69,973)	(634)
Total Noninterest Income	88,127	10,241	77,972
NONINTEREST EXPENSE
Salaries and wages	101,150	97,370	98,261
Other employee benefits	26,661	27,333	24,969
Net occupancy expense of premises	12,634	13,278	13,093
Furniture and fixture expense	7,666	8,663	8,058
Amortization of intangible assets	332	334	873
Other operating expense	51,199	56,314	50,497
Total Noninterest Expenses	199,642	203,292	195,751
Income Before Income Tax Expense	92,976	12,124	109,713
Income Tax Expense	22,003	2,495	24,557
Net Income Attributable to Noncontrolling Interests and Tompkins Financial Corporation	70,973	9,629	85,156
Less: Net Income Attributable to Noncontrolling Interests	123	124	126
Net Income Attributable to Tompkins Financial Corporation	$ 70,850	$ 9,505	$ 85,030
Basic Earnings Per Share (in dollars per share)	$ 4.98	$ 0.66	$ 5.92
Diluted Earnings Per Share (in dollars per share)	$ 4.97	$ 0.66	$ 5.89