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Deposits (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Disclosure of deposits from customers [Line Items]    
Deposits from customers $ 3,138,900 $ 2,888,336
Demand [Member]    
Disclosure of deposits from customers [Line Items]    
Deposits from customers 170,660 85,786
Up to 1 month [Member]    
Disclosure of deposits from customers [Line Items]    
Deposits from customers 1,127,120 1,285,949
From 1 month to 3 months [member]    
Disclosure of deposits from customers [Line Items]    
Deposits from customers 878,900 628,981
3 to 6 months    
Disclosure of deposits from customers [Line Items]    
Deposits from customers 544,860 593,431
6 months to 1 year    
Disclosure of deposits from customers [Line Items]    
Deposits from customers 365,879 289,189
From 1 to 2 years    
Disclosure of deposits from customers [Line Items]    
Deposits from customers $ 51,481 $ 5,000