XML 46 R35.htm IDEA: XBRL DOCUMENT v3.20.2
Investment Securities - Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Detail) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]    
Due in one year or less, Amortized Cost, Held-to-maturity $ 2,075  
Due after one year through five years, Amortized Cost, Held-to-maturity 341,272  
Due after five years through ten years, Amortized Cost, Held-to-maturity 96,738  
Due after ten years, Amortized Cost, Held-to-maturity 173,084  
Total Held-to-maturity, Debt Maturities, Amortized Cost Basis 613,169  
Due in one year or less, Fair Value, Held-to-maturity 2,113  
Due after one year through five years, Fair Value, Held-to-maturity 354,456  
Due after five years through ten years, Fair Value, Held-to-maturity 100,064  
Due after ten years, Fair Value, Held-to-maturity 182,317  
Total, Held-to-maturity, Fair Value 638,950  
Due in one year or less, Amortized Cost, Available-for-sale 40,755  
Due after one year through five years, Amortized Cost, Available-for-sale 1,224,722  
Due after five years through ten years, Amortized Cost, Available-for-sale 154,864  
Due after ten years, Amortized Cost, Available-for-sale 198,470  
Amortized Cost, Available-for-sale 1,618,811 $ 1,718,357
Due in one year or less, Fair Value, Available-for-sale 41,076  
Due after one year through five years, Fair Value, Available-for-sale 1,275,526  
Due after five years through ten years, Fair Value, Available-for-sale 159,124  
Due after ten years, Fair Value, Available-for-sale 200,341  
Total Available-for-sale Securities, Debt Maturities, Available-for-sale, Fair Value $ 1,676,067 $ 1,740,257