General (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Potentially dilutive securities (in shares)	0	77
Deferred policy acquisition cost amortization	$ 142,599	$ 141,560
Advertising expenses	$ 14,000	$ 15,000