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Stockholders' Equity - Summary of Preferred and Common Stock (Parenthetical) (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Series B 7.5% Fixed to Floating Non-Cumulative Perpetual Preferred Stock    
Class Of Stock [Line Items]    
Preferred stock, dividend rate, percentage 7.50% 7.50%