XML 67 R56.htm IDEA: XBRL DOCUMENT v3.7.0.1
Deposits - Total Deposits (Detail) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Banking and Thrift [Abstract]    
Percentage Change, Checking, non-interest bearing 8.30%  
Percentage Change, Checking, interest bearing 3.40%  
Percentage Change, Savings accounts 1.10%  
Percentage Change, Certificates of deposit 2.80%  
Percentage change, Total 2.90%  
Checking, non-interest bearing $ 313,871 $ 289,922
Checking, interest bearing 561,871 543,388
Savings accounts 963,885 953,438
Certificates of deposit 237,162 230,774
Total deposits $ 2,076,789 $ 2,017,522