XML 46 R34.htm IDEA: XBRL DOCUMENT v3.7.0.1
Investments - Investments Classified by Contractual Maturity Date (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Available for sale, Amortized Cost    
Due in one year or less $ 1,780  
Due after one year through five years 111,987  
Due after five years through ten years 16,807  
Due after ten years 3,364  
Agency mortgage-backed securities 488,951  
Amortized Cost 622,889 $ 463,143
Available for sale, Estimated Fair Value    
Due in one year or less 1,791  
Due after one year through five years 112,761  
Due after five years through ten years 17,391  
Due after ten years 3,375  
Agency mortgage-backed securities 488,539  
Available for sale, fair value 623,857 460,797
Held to maturity, Amortized Cost    
Due in one year or less 0  
Due after one year through five years 0  
Due after five years through ten years 12,367  
Due after ten years 2,355  
Agency mortgage-backed securities 62,919  
Amortized Cost 77,641 80,463
Held to maturity, Estimated Fair Value    
Due in one year or less 0  
Due after one year through five years 0  
Due after five years through ten years 12,529  
Due after ten years 2,375  
Agency mortgage-backed securities 62,927  
Held to maturity, fair value $ 77,831 $ 79,639