Condensed Parent Company Only Financial Statements - Condensed Statements of Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets
Investment in subsidiaries	$ 1,500	$ 1,600
Total Assets	7,670,686	7,819,982	$ 7,622,171
Liabilities and Shareholders’ Equity
Other liabilities	103,423	108,819
Tompkins Financial Corporation Shareholders’ Equity	615,978	727,529
Total Liabilities and Equity	7,670,686	7,819,982
Tompkins (the Parent Company)
Assets
Cash	28,543	18,691
Investment in subsidiaries	587,032	705,723
Other	1,344	4,032
Total Assets	616,920	728,446
Liabilities and Shareholders’ Equity
Other liabilities	942	917
Tompkins Financial Corporation Shareholders’ Equity	615,978	727,529
Total Liabilities and Equity	$ 616,920	$ 728,446