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Business Combinations - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jul. 01, 2022
Jul. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Business Acquisition [Line Items]          
Goodwill resulting from acquisition of Prudential Bancorp     $ 550,539 $ 534,266  
Net increase (decrease) in time deposits     $ (257,823) $ (580,847) $ (506,611)
Prudential          
Business Acquisition [Line Items]          
Percent of outstanding common stock acquired 100.00%        
Percent of consideration in equity 80.00%        
Percent of consideration in cash 20.00%        
Goodwill resulting from acquisition of Prudential Bancorp $ 16,273        
Loans, net 554,288        
Investment securities 287,126        
Increase to allowance for credit losses 9,100        
Allowance for credit losses at acquisition 1,135        
Increase in premises and equipment 7,100        
Net increase (decrease) in time deposits 1,900        
Prudential | Core Deposits          
Business Acquisition [Line Items]          
Intangible assets acquired $ 8,200        
Amortization period of acquired intangible assets 7 years        
Prudential | Acquisition-related Costs          
Business Acquisition [Line Items]          
Charitable donation   $ 2,000