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Shareholders' Equity - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2020
Dec. 31, 2020
Apr. 01, 2020
Apr. 01, 2019
Stockholders Equity [Line items]            
Capital conservation buffer rate 2.50%     2.50%    
Stock Repurchase Program 2 [Member]            
Stockholders Equity [Line items]            
Amount of stock authorized for repurchase           $ 100.0
Stock Repurchase Program 2 [Member] | Common Stock [Member]            
Stockholders Equity [Line items]            
Repurchase shares of common stock   887,000 1,500,000      
Repurchase shares of common stock, value   $ 27.5 $ 47.2      
Stock Repurchase Program 3 [Member]            
Stockholders Equity [Line items]            
Amount of stock authorized for repurchase         $ 100.0  
Stock Repurchase Program 3 [Member] | Common Stock [Member]            
Stockholders Equity [Line items]            
Repurchase shares of common stock 145,000          
Repurchase shares of common stock, value $ 4.2