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Shareholders' Equity - Narrative (Detail)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jul. 26, 2023
$ / shares
Jun. 30, 2023
series
shares
Jun. 30, 2022
USD ($)
shares
Jun. 30, 2023
USD ($)
series
shares
Jun. 30, 2022
USD ($)
shares
Dec. 31, 2022
series
Aug. 25, 2021
shares
Capital Unit [Line Items]              
Stock repurchase program, number of shares authorized to be repurchased | shares             3,235,326
Percentage of company's outstanding shares             10.00%
Repurchase of common shares (in shares) | shares   0 548,821 1,379,883 664,145    
Repurchase of common shares | $     $ 21,510 $ 39,806 $ 27,820    
Preferred stock, number of series outstanding | series   2   2   2  
Series E Preferred Stock | Subsequent Event              
Capital Unit [Line Items]              
Dividends declared per share (in dollars per share) | $ / shares $ 0.6831            
Series F Preferred Stock | Subsequent Event              
Capital Unit [Line Items]              
Dividends declared per share (in dollars per share) | $ / shares $ 0.65895            
London Interbank Offered Rate (LIBOR) | Series E Preferred Stock              
Capital Unit [Line Items]              
Preferred stock dividend rate, basis spread of variable rate       5.14%      
London Interbank Offered Rate (LIBOR) | Series E Preferred Stock | Subsequent Event              
Capital Unit [Line Items]              
Preferred stock dividend rate, basis spread of variable rate 5.14%            
London Interbank Offered Rate (LIBOR) | Series F Preferred Stock              
Capital Unit [Line Items]              
Preferred stock dividend rate, basis spread of variable rate       4.762%      
London Interbank Offered Rate (LIBOR) | Series F Preferred Stock | Subsequent Event              
Capital Unit [Line Items]              
Preferred stock dividend rate, basis spread of variable rate 4.76%