v2.4.0.6
Summary of Gross Unrealized Losses of Fixed-maturities and Equity Securities (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Contract
Investments, Unrealized Loss Position [Line Items]  
Fair Market Value $ 123,965
Unrealized Losses (5,622)
No. of Positions Held 68
Fair Market Value 136,732
Unrealized Losses (7,767)
No. of Positions Held 28
Total Fair Market Value 260,697
Total Unrealized Losses (13,389)
Common and preferred stock
  
Investments, Unrealized Loss Position [Line Items]  
Fair Market Value 7,015
Unrealized Losses (1,446)
No. of Positions Held 30
Fair Market Value 2,453
Unrealized Losses (1,630)
No. of Positions Held 9
Total Fair Market Value 9,468
Total Unrealized Losses (3,076)
U.S. treasury securities
  
Investments, Unrealized Loss Position [Line Items]  
Fair Market Value 994
Unrealized Losses (6)
No. of Positions Held 1
Fair Market Value 0
Unrealized Losses 0
No. of Positions Held 0
Total Fair Market Value 994
Total Unrealized Losses (6)
Municipal bonds
  
Investments, Unrealized Loss Position [Line Items]  
Fair Market Value 24,177
Unrealized Losses (82)
No. of Positions Held 6
Fair Market Value 8,071
Unrealized Losses (4)
No. of Positions Held 1
Total Fair Market Value 32,248
Total Unrealized Losses (86)
Agency, residential mortgage backed securities
  
Investments, Unrealized Loss Position [Line Items]  
Fair Market Value 4,674
Unrealized Losses (1)
No. of Positions Held 1
Fair Market Value 25,429
Unrealized Losses (441)
No. of Positions Held 1
Total Fair Market Value 30,103
Total Unrealized Losses (442)
Non-agency, residential mortgage backed securities
  
Investments, Unrealized Loss Position [Line Items]  
Fair Market Value 6,734
Unrealized Losses (1,069)
No. of Positions Held 1
Fair Market Value 25
Unrealized Losses (3)
No. of Positions Held 1
Total Fair Market Value 6,759
Total Unrealized Losses (1,072)
Corporate Bonds | Finance
  
Investments, Unrealized Loss Position [Line Items]  
Fair Market Value 40,776
Unrealized Losses (1,223)
No. of Positions Held 12
Fair Market Value 94,994
Unrealized Losses (5,364)
No. of Positions Held 15
Total Fair Market Value 135,770
Total Unrealized Losses (6,587)
Corporate Bonds | Industrial
  
Investments, Unrealized Loss Position [Line Items]  
Fair Market Value 39,595
Unrealized Losses (1,795)
No. of Positions Held 17
Fair Market Value 5,760
Unrealized Losses (325)
No. of Positions Held 1
Total Fair Market Value 45,355
Total Unrealized Losses $ (2,120)