Securities - Unrealized Gains (Losses) of Debt Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Total unrealized gains/(losses) on debt securities available-for-sale, Gross Unrealized Gains	$ 1,648	$ 15,183
Total unrealized gains/(losses) on debt securities available-for-sale, Gross Unrealized Losses	(40,495)	(5,767)
Total unrealized gains/(losses) on debt securities available-for-sale, Net Unrealized Gains/(Losses)	(38,847)	9,416
Income tax (expense) benefit, Gross Unrealized Gains	(354)	(3,215)
Income tax (expense) benefit, Gross Unrealized Losses	8,698	1,221
Income tax (expense) benefit, Net Unrealized Gains/(Losses)	8,344	(1,994)
Net Unrealized Gains/(Losses), Net of Tax Included in Accumulated Other Comprehensive Income/(Loss), Gross Unrealized Gains	1,294	11,968
Net Unrealized Gains/(Losses), Net of Tax Included in Accumulated Other Comprehensive Income/(Loss), Gross Unrealized Losses	(31,797)	(4,546)
Net Unrealized Gains/(Losses), Net of Tax Included in Accumulated Other Comprehensive Income/(Loss), Net Unrealized Gains/(Losses)	$ (30,503)	$ 7,422