Other Comprehensive Income (Loss) - Reclassification out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other non-interest expense	$ 2,853	$ 2,640
Income tax benefit	(7,155)	(7,867)
Net of tax	20,404	21,045
Accumulated Other Comprehensive Income (Loss) Components
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income tax benefit	95	422
Net of tax	(244)	(1,089)
Accumulated Other Comprehensive Income (Loss) Components | Reclassification adjustment of actuarial net (loss) included in net income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other non-interest expense	$ (339)	$ (1,511)