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Shareholders' Equity - Schedule of Minimum Required Capital Amounts and Ratios for Well Capitalized Institutions and The Actual Capital Amounts and Ratios for The Company and The Bank (Details)
$ in Thousands
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts [Line Items]        
Common Shareholders’ Equity $ 1,667,774 $ 1,414,242 $ 1,316,995 $ 1,611,611
Well Capitalized Minimum Common Equity Tier One Ratio (as a percent) 0.065 0.065    
Well Capitalized Minimum Tier 1 Capital Ratio (as a percent) 0.080 0.080    
Well Capitalized Minimum Total Capital Ratio (as a percent) 0.100 0.100    
Well Capitalized Minimum Tier 1 Leverage Ratio (as a percent) 0.050 0.050    
Parent [Member]        
Minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts [Line Items]        
Common Shareholders’ Equity $ 1,322,774 $ 1,238,756    
Common Equity Tier One Capital 1,648,889 1,611,645    
Tier 1 Capital 1,984,990 1,787,132    
Total Capital $ 2,133,624 $ 1,935,532    
Common Equity Tier 1 Capital Ratio 0.1159 0.1133    
Tier 1 Capital Ratio (as a percent) 0.1395 0.1256    
Total Capital Ratio (as a percent) 0.1500 0.1360    
Tier 1 Leverage Ratio (as a percent) 0.0831 0.0751    
Subsidiaries [Member]        
Minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts [Line Items]        
Common Shareholders’ Equity $ 1,540,431 $ 1,369,733    
Common Equity Tier One Capital 1,869,247 1,754,222    
Tier 1 Capital 1,869,247 1,754,222    
Total Capital $ 2,017,881 $ 1,902,622    
Common Equity Tier 1 Capital Ratio 0.1316 0.1233    
Tier 1 Capital Ratio (as a percent) 0.1316 0.1233    
Total Capital Ratio (as a percent) 0.1420 0.1338    
Tier 1 Leverage Ratio (as a percent) 0.0783 0.0738