Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income		$ 12,133	$ 11,227
Other comprehensive (loss)/income:
Unrealized (losses) arising during the period on available for sale securities, net of income tax costs	[1]	(1,711)	1,977
Unrealized holding losses arising during the period on interest rate derivatives used in cash flow hedges, net of income tax benefit	[1]	1,410	(128)
Change in defined benefit plans, net of income tax (cost) benefit	[1],[2]	8	5
Reclassification adjustment for settlement losses and other activity related to benefit plans, net of income taxes	[1],[3]	(17)	(12)
Total other comprehensive (loss)/income		(310)	1,842
Total comprehensive income		$ 11,823	$ 13,069

[1] The income tax impacts of the components of other comprehensive income are calculated using a 21% statutory tax rate.

[2] The change in defined benefit plans consists primarily of unrecognized actuarial (losses)/gains on defined benefit plans during the period.

[3] The reclassification adjustment for benefit plans includes settlement gains, amortization of prior service costs, and amortization of net gain or loss. Amounts are included in other income on the Consolidated Statements of Income within total noninterest income.