Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 10,758	$ 7,833
Other comprehensive income (loss):
Unrealized holding gains (losses) on available for sale securities	(6,476)	3,743
Tax effect	1,360	(786)
Reclassification of losses recognized in net income	1
Pension liability adjustment	82	73
Tax effect	(17)	(16)
Total other comprehensive income (loss)	(5,050)	3,014
Comprehensive income	$ 5,708	$ 10,847

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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