XML 18 R25.htm IDEA: XBRL DOCUMENT v2.4.0.8
General (Details) (USD $)
3 Months Ended 9 Months Ended 0 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Feb. 14, 2014
2014 Swap [Member]
Sep. 30, 2014
2014 Swap [Member]
Sep. 30, 2014
2014 Swap [Member]
LIBOR [Member]
General [Abstract]              
Potentially dilutive securities (in shares) 18,000 53,000 31,000 76,000      
Deferred policy acquisition cost amortization $ 131,090,000 $ 126,891,000 $ 393,964,000 $ 377,006,000      
Advertising expenses     17,000,000 16,000,000      
Derivative [Line Items]              
Term of swap agreement         3 years    
Basis spread on variable rate             1.40%
Notional amount           113,000,000  
Swap agreement collateral           $ 30,000,000