XML 86 R73.htm IDEA: XBRL DOCUMENT v3.8.0.1
Deposits - Scheduled Maturities of Certificates of Deposit (Detail) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Banking and Thrift [Abstract]    
Within one year $ 424,448 $ 439,035
One to three years 150,280 134,941
Three to five years 56,529 75,751
Five years and thereafter 3,552 1,456
Certificates of deposit $ 634,809 $ 651,183