Quarterly report pursuant to Section 13 or 15(d)

Deposits - Scheduled Maturities of Time Deposits (Detail)

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Deposits - Scheduled Maturities of Time Deposits (Detail) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Restricted Cash And Cash Equivalents Items [Line Items]    
2020 $ 1,028,767  
2020   $ 1,390,606
2021 411,023 137,517
2022 37,588 25,155
2023 2,315 1,974
2024 and thereafter 770 669
Total 1,480,462 1,555,919
Time Deposits of $250,000 or More    
Restricted Cash And Cash Equivalents Items [Line Items]    
2020 245,439  
2020   291,940
2021 67,053 7,186
2022 0 0
2023 792 789
Total 313,285 299,914
Other Time Deposits    
Restricted Cash And Cash Equivalents Items [Line Items]    
2020 783,328  
2020   1,098,666
2021 343,970 130,331
2022 37,588 25,155
2023 1,522 1,185
2024 and thereafter 770 669
Total $ 1,167,178 $ 1,256,005