General (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Potentially dilutive securities (in shares)	28	47	48	47
Deferred policy acquisition cost amortization	$ 139,922	$ 135,140	$ 281,482	$ 268,987
Advertising expenses			$ 24,000	$ 28,000