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Deposits - Summary of Deposits Including Accrued Interest Payable (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Amount    
Non-interest-bearing $ 2,412,056 $ 2,133,195
Interest-bearing checking 4,201,736 3,646,866
Money market deposit 736,090 783,521
Savings 1,607,933 1,491,251
Time deposits 775,001 1,372,783
Total deposits $ 9,732,816 $ 9,427,616
Weighted Average Cost    
Non-interest-bearing 0.00% 0.00%
Interest-bearing checking 0.24% 0.49%
Money market deposit 0.06% 0.19%
Savings 0.03% 0.05%
Time deposits 0.95% 1.51%
Total deposits 0.19% 0.43%