XML 80 R65.htm IDEA: XBRL DOCUMENT v3.20.4
Securities - Summary of Contractual Maturity Information for Securities Available for Sale (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]    
Due in 1 year or less, Amortized Cost $ 246,086  
Due after 1 year through 5 years, Amortized Cost 592,484  
Due after 5 years through 10 years, Amortized Cost 636,566  
Due after 10 years, Amortized Cost 2,146,204  
Total, Amortized Cost 3,621,340  
Mortgage-backed securities, Amortized Cost 5,266,394  
Amortized Cost 8,887,734 $ 7,323,980
Due in 1 year or less, Fair Value 247,233  
Due after 1 year through 5 years, Fair Value 612,069  
Due after 5 years through 10 years, Fair Value 667,001  
Due after 10 years, Fair Value 2,305,204  
Total, Fair Value 3,831,507  
Mortgage-backed securities, Fair Value 5,468,181  
Total securities available for sale, Fair Value $ 9,299,688 $ 7,447,362