XML 66 R56.htm IDEA: XBRL DOCUMENT v3.10.0.1
Investments (Gross Unrealized Losses and Fair Values of Securities) (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Schedule of Investments [Line Items]    
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value $ 10,319 $ 47,594
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses 345 754
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value 116,949 82,737
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses 7,114 6,695
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value 58,057 27,302
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss 1,390 149
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value 25,373 14,540
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, unrealized loss 1,418 357
US government agencies [Member]    
Schedule of Investments [Line Items]    
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value 0 4,931
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses 0 69
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value 28,565 24,325
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses 1,435 675
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value 15,822  
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss 160  
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value 0  
Residential mortgage-backed agencies [Member]    
Schedule of Investments [Line Items]    
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value 23,860 15,897
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss 741 135
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value 21,864 10,422
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, unrealized loss 1,158 288
Commercial mortgage-backed agencies [Member]    
Schedule of Investments [Line Items]    
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value 0 12,593
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses 0 169
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value 37,631 28,298
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses 1,802 711
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value 16,229 9,028
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss 340 6
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value 0 0
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, unrealized loss 0 0
Collateralized mortgage obligations [Member]    
Schedule of Investments [Line Items]    
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value 300 27,387
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses 1 472
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value 35,822 12,447
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses 1,777 443
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value 0 0
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss 0 0
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value 3,509 4,118
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, unrealized loss 260 69
Obligations of states and political subdivisions [Member]    
Schedule of Investments [Line Items]    
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value 10,019 2,683
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses 344 44
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value 4,842 2,747
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses 243 75
Held-to-maturity securities, continuous unrealized loss position, less than twelve months, fair value 2,146 2,377
Held-to-maturity securities, continuous unrealized loss position, less than 12 months, unrealized loss 149 8
Held-to-maturity securities, continuous unrealized loss position, twelve months or longer, fair value 0 0
Held-to-maturity securities, continuous unrealized loss position, 12 months or longer, unrealized loss 0 0
Collateralized debt obligations [Member]    
Schedule of Investments [Line Items]    
Available-for-sale securities, continuous unrealized loss position, less than twelve months, fair value 0 0
Available-for-sale securities, continuous unrealized loss position, less than 12 months, unrealized losses 0 0
Available-for-sale securities, continuous unrealized loss position, twelve months or longer, fair value 10,089 14,920
Available-for-sale securities, continuous unrealized loss position, 12 months or longer, unrealized losses $ 1,857 $ 4,791