XML 82 R72.htm IDEA: XBRL DOCUMENT v3.8.0.1
Borrowings (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Assets Sold under Agreements to Repurchase [Line Items]      
Fair value of collateral $ 25,100   $ 5,700
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date, Earliest 2018    
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date, Last 2020    
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available $ 847,900    
FHLB advances 77,300   129,100
Interest expense related to FHLB advances $ 460 $ 197  
Minimum      
Assets Sold under Agreements to Repurchase [Line Items]      
Interest rate range of FHLB advances 1.55%    
Maximum      
Assets Sold under Agreements to Repurchase [Line Items]      
Interest rate range of FHLB advances 2.33%    
Federal Home Loan Bank of Des Moines [Member]      
Assets Sold under Agreements to Repurchase [Line Items]      
Fair value of collateral $ 27,800   28,100
U.S. Treasury Securities [Member]      
Assets Sold under Agreements to Repurchase [Line Items]      
Fair value of collateral $ 166,300   $ 136,100