Annual report pursuant to Section 13 and 15(d)

Deposits - Scheduled Maturities of Time Deposits (Detail)

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Deposits - Scheduled Maturities of Time Deposits (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Restricted Cash And Cash Equivalents Items [Line Items]    
2020 $ 1,390,606  
2021 137,517  
2022 25,155  
2023 1,974  
2024 669  
Total 1,555,919  
Time Deposits of $250,000 or More    
Restricted Cash And Cash Equivalents Items [Line Items]    
2020 291,940  
2021 7,186  
2022 0  
2023 789  
2024 0  
Total 299,914 $ 288,600
Other Time Deposits    
Restricted Cash And Cash Equivalents Items [Line Items]    
2020 1,098,666  
2021 130,331  
2022 25,155  
2023 1,185  
2024 669  
Total $ 1,256,005