XML 37 R35.htm IDEA: XBRL DOCUMENT v2.4.0.8
Investment Securities - Schedule of Investments in Accordance with Fair Value Measurement (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Class of Security:    
Total fixed maturity securities $ 216,480 $ 218,801
Total investments fair value 258,499 263,664
Obligations of U.S. Government Sponsored Enterprises [Member]
    
Class of Security:    
Total fixed maturity securities 8,497 15,832
Corporate Debt Securities [Member]
    
Class of Security:    
Total fixed maturity securities 90,731 81,892
Commercial Paper [Member]
    
Class of Security:    
Total fixed maturity securities 96,115 98,932
Foreign Corporate Debt Securities [Member]
    
Class of Security:    
Total fixed maturity securities 21,137 22,145
Money Market Funds [Member]
    
Class of Security:    
Total investments fair value 42,019 44,863
Level 1 [Member]
    
Class of Security:    
Total fixed maturity securities 135,812 124,774
Total investments fair value 177,831 169,637
Level 1 [Member] | Obligations of U.S. Government Sponsored Enterprises [Member]
    
Class of Security:    
Total fixed maturity securities 3,042 6,299
Level 1 [Member] | Corporate Debt Securities [Member]
    
Class of Security:    
Total fixed maturity securities 29,813 11,891
Level 1 [Member] | Commercial Paper [Member]
    
Class of Security:    
Total fixed maturity securities 96,115 98,932
Level 1 [Member] | Foreign Corporate Debt Securities [Member]
    
Class of Security:    
Total fixed maturity securities 6,842 7,652
Level 1 [Member] | Money Market Funds [Member]
    
Class of Security:    
Total investments fair value 42,019 44,863
Level 2 [Member]
    
Class of Security:    
Total fixed maturity securities 80,668 94,027
Total investments fair value 80,668 94,027
Level 2 [Member] | Obligations of U.S. Government Sponsored Enterprises [Member]
    
Class of Security:    
Total fixed maturity securities 5,455 9,533
Level 2 [Member] | Corporate Debt Securities [Member]
    
Class of Security:    
Total fixed maturity securities 60,918 70,001
Level 2 [Member] | Commercial Paper [Member]
    
Class of Security:    
Total fixed maturity securities      
Level 2 [Member] | Foreign Corporate Debt Securities [Member]
    
Class of Security:    
Total fixed maturity securities 14,295 14,493
Level 2 [Member] | Money Market Funds [Member]
    
Class of Security:    
Total investments fair value      
Level 3 [Member]
    
Class of Security:    
Total fixed maturity securities      
Total investments fair value      
Level 3 [Member] | Obligations of U.S. Government Sponsored Enterprises [Member]
    
Class of Security:    
Total fixed maturity securities      
Level 3 [Member] | Corporate Debt Securities [Member]
    
Class of Security:    
Total fixed maturity securities      
Level 3 [Member] | Commercial Paper [Member]
    
Class of Security:    
Total fixed maturity securities      
Level 3 [Member] | Foreign Corporate Debt Securities [Member]
    
Class of Security:    
Total fixed maturity securities      
Level 3 [Member] | Money Market Funds [Member]
    
Class of Security:    
Total investments fair value