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Comprehensive Income - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Comprehensive Income
Income tax effect	$ (465)	$ (680)
Salaries and employee benefits	(16,746)	(15,727)
Interest on investment securities	1,848	648
Amount reclassified from AOCI
Comprehensive Income
Net of tax	(935)	424
Available-for-sale securities | Amount reclassified from AOCI
Comprehensive Income
Gain (loss) on sale of available-for-sale securities	(1,536)	650
Income tax effect	369	(152)
Net of tax	(1,167)	498
Defined benefit pension plan items | Amount reclassified from AOCI
Comprehensive Income
Income tax effect	7	25
Net of tax	(22)	(82)
Salaries and employee benefits	(29)	(107)
Investment hedge | Amount reclassified from AOCI
Comprehensive Income
Income tax effect	(80)	(2)
Net of tax	254	8
Interest on investment securities	$ 334	$ 10

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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), excluding other-than-temporary impairment (OTTI).

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