General (Details) (USD $)	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
General [Abstract]
Potentially dilutive securities	62,000	102,000
Deferred policy acquisition costs	$ 175,392,000		$ 171,430,000
Deferred policy acquisition costs, previous policy	176,600,000
Deferred policy acquisition cost amortization	117,430,000	121,804,000
Advertising expenses	$ 5,000,000	$ 6,000,000