Other Comprehensive Income (Loss) - Summary of Accumulated Other Comprehensive Income (Loss) ("AOCI") ("AOCL") (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Available for sale securities, before tax amount
Unrealized holding losses	$ 2,608	$ (11,016)
Interest rate swaps designated as cash flow hedges, before tax amount
Unrealized holding (losses) gains, before tax amount	78	(1,700)
Reclassification adjustment for (losses) income recognized in net income, before tax amount	144	(614)
Defined benefit retirement plans, before tax amount
Total other comprehensive income (loss)	2,830	(13,330)
Available for sale securities, tax (expense) or benefit
Unrealized holding losses	(666)	2,789
Interest rate swaps designated as cash flow hedges, tax (expense) or benefit
Unrealized holding (losses) gains, tax (expense) or benefit	(21)	474
Reclassification adjustment for (losses) income recognized in net income, tax (expense) or benefit	(40)	173
Defined benefit retirement plans, tax (expense) or benefit
Total other comprehensive (loss) income, tax (expense) or benefit	(727)	3,436
Available for sale securities
Unrealized holding losses	1,942	(8,227)
Interest rate swaps designated as cash flow hedges
Unrealized holding (losses) gains, net-of-tax amount	57	(1,226)
Reclassification adjustment for (losses) income realized in net income	104	(441)
Defined benefit retirement plans
Other comprehensive income (loss)	$ 2,103	$ (9,894)