XML 45 R34.htm IDEA: XBRL DOCUMENT v3.5.0.2
Investments - Investments by contractual maturity (Details) - USD ($)
$ in Thousands
Jun. 30, 2016
Dec. 31, 2015
Schedule of Available-for-sale Securities    
Within one year, amortized cost $ 0  
Within one year, estimated fair value 0  
After one year through five years, amortized cost 13,636  
After one year through five years, estimated fair value 14,272  
After five years through ten years, amortized cost 35,938  
After five years through ten years, estimated fair value 38,458  
After ten years, amortized cost 162,989  
After ten years, estimated fair value 177,605  
Total securities with single maturity date, amortized cost 212,563  
Total securities with single maturity date, estimated fair value 230,335  
Debt securities, amortized cost 487,631  
Available-for-sale investment securities 510,401 $ 477,554
U.S. Government agencies    
Schedule of Available-for-sale Securities    
Investment securities not due at a single maturity date, amortized cost 57,408  
Investment securities not due at a single maturity date, estimated fair value 57,841  
Debt securities, amortized cost 57,408 52,803
U.S. Government agencies collateralized by residential mortgage obligations    
Schedule of Available-for-sale Securities    
Investment securities not due at a single maturity date, amortized cost 208,082  
Investment securities not due at a single maturity date, estimated fair value 211,367  
Debt securities, amortized cost 208,082 225,636
Private label residential mortgage backed securities    
Schedule of Available-for-sale Securities    
Investment securities not due at a single maturity date, amortized cost 2,078  
Investment securities not due at a single maturity date, estimated fair value 3,154  
Debt securities, amortized cost 2,078 $ 2,356
Other equity securities    
Schedule of Available-for-sale Securities    
Investment securities not due at a single maturity date, amortized cost 7,500  
Investment securities not due at a single maturity date, estimated fair value $ 7,704