Condensed Parent Company Only Financial Statements - Condensed Statements of Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Investment in subsidiaries	$ 1,600	$ 1,500
Total Assets	7,819,982	7,622,171	$ 6,725,623
Liabilities and Shareholders’ Equity
Trust preferred debentures issued to non-consolidated subsidiary	0	13,220
Other liabilities	108,819	122,665
Tompkins Financial Corporation Shareholders’ Equity	727,529	716,277
Total Liabilities and Equity	7,819,982	7,622,171
Tompkins (the Parent Company)
Assets
Cash	18,691	16,588
Investment in subsidiaries	705,723	707,721
Other	4,032	5,965
Total Assets	728,446	730,274
Liabilities and Shareholders’ Equity
Borrowings	0	0
Trust preferred debentures issued to non-consolidated subsidiary	0	13,220
Other liabilities	917	777
Tompkins Financial Corporation Shareholders’ Equity	727,529	716,277
Total Liabilities and Equity	$ 728,446	$ 730,274