Income Taxes - Significant Components of Temporary Differences (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Deferred Tax Assets:
Allowance for credit losses and other reserves	$ 22,953	$ 24,465
Net unrealized holding losses on securities available-for-sale	15,431	17,452
Lease liabilities	10,271	10,572
State net operating loss carryforwards	3,782	3,464
Net unrealized losses on interest rate swaps	2,063	3,137
Cumulative adjustment to funded status of pension	3,606	3,987
Low income housing partnerships and other investments	0	174
Other employee benefits	4,688	3,740
Depreciation on premises and equipment	5	0
Capital loss carryforward	1,300	2,092
Other	1,243	1,202
Deferred Tax Assets	65,342	70,285
Less: Valuation allowance	(3,782)	(3,464)
Total Deferred Tax Assets	61,560	66,821
Deferred Tax Liabilities:
Right-of-use lease assets	(8,825)	(9,127)
Deferred loan income, net	(5,216)	(4,633)
Prepaid pension	(3,131)	(3,360)
Purchase accounting adjustments	(1,650)	(1,823)
Mortgage servicing rights	(61)	(1,350)
Depreciation on premises and equipment	0	(1,182)
Other partnership interests	(491)	0
Other	(113)	(78)
Total Deferred Tax liabilities	(19,487)	(21,553)
Net Deferred Tax Asset	$ 42,073	$ 45,268