General (Details) (USD $)	3 Months Ended		6 Months Ended		0 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Feb. 14, 2014 2014 Swap [Member]	Jun. 30, 2014 2014 Swap [Member]	Jun. 30, 2014 2014 Swap [Member] LIBOR [Member]
General [Abstract]
Potentially dilutive securities (in shares)	34,000	69,000	40,000	87,000
Deferred policy acquisition cost amortization	$ 133,060,000	$ 126,393,000	$ 262,874,000	$ 250,115,000
Advertising expenses			12,000,000	11,000,000
Derivative [Line Items]
Term of swap agreement					3 years
Basis spread on variable rate							1.40%
Notional amount						98,000,000
Swap agreement collateral						$ 30,000,000