XML 45 R33.htm IDEA: XBRL DOCUMENT v3.10.0.1
Summary of Investments (Maturities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Held-To-Maturity, Amortized Cost    
Due in one year or less $ 0  
Due after one year through five years 150  
Due after five years through 10 years 0  
Due after 10 years 0  
Amortized Cost 150 $ 150
Held-To-Maturity, Fair Value    
Due in one year or less 0  
Due after one year through five years 150  
Due after five years through 10 years 0  
Due after 10 years 0  
Fair Value 150 150
Available-For-Sale, Amortized Cost    
Due in one year or less 80,163  
Due after one year through five years 276,772  
Due after five years through 10 years 481,651  
Due after 10 years 730,046  
Amortized Cost 1,811,473 1,516,610
Available-For-Sale, Fair Value    
Due in one year or less 80,314  
Due after one year through five years 277,322  
Due after five years through 10 years 479,036  
Due after 10 years 718,091  
Fair Value 1,792,019 1,535,070
Trading, Amortized Cost    
Due in one year or less 1,807  
Due after one year through five years 8,530  
Due after five years through 10 years 1,100  
Due after 10 years 1,267  
Amortized Cost 12,704 14,582
Trading, Fair Value    
Due in one year or less 1,871  
Due after one year through five years 10,268  
Due after five years through 10 years 1,020  
Due after 10 years 1,546  
Fair Value 14,705 $ 16,842
Asset-backed securities    
Held-To-Maturity, Amortized Cost    
Securities not categorized by contractual maturity 0  
Held-To-Maturity, Fair Value    
Securities not categorized by contractual maturity 0  
Available-For-Sale, Amortized Cost    
Securities not categorized by contractual maturity 3,238  
Available-For-Sale, Fair Value    
Securities not categorized by contractual maturity 3,484  
Mortgage-backed securities    
Held-To-Maturity, Amortized Cost    
Securities not categorized by contractual maturity 0  
Held-To-Maturity, Fair Value    
Securities not categorized by contractual maturity 0  
Available-For-Sale, Amortized Cost    
Securities not categorized by contractual maturity 8,382  
Available-For-Sale, Fair Value    
Securities not categorized by contractual maturity 8,187  
Collateralized mortgage obligations    
Held-To-Maturity, Amortized Cost    
Securities not categorized by contractual maturity 0  
Held-To-Maturity, Fair Value    
Securities not categorized by contractual maturity 0  
Available-For-Sale, Amortized Cost    
Securities not categorized by contractual maturity 231,221  
Available-For-Sale, Fair Value    
Securities not categorized by contractual maturity $ 225,585