Segment Information (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Additional significant financial information for these segments
Policy acquisition expenses	$ 84,643	$ 79,519	$ 83,398
Income tax expense (benefit)	43,173	45,307	24,412
Property and casualty [Member]
Additional significant financial information for these segments
Policy acquisition expenses	68,516	63,768	61,374
Income tax expense (benefit)	12,740	10,849	(5,183)
Annuity [Member]
Additional significant financial information for these segments
Policy acquisition expenses	7,957	6,868	12,334
Income tax expense (benefit)	18,531	19,046	13,499
Life [Member]
Additional significant financial information for these segments
Policy acquisition expenses	8,170	8,883	9,690
Income tax expense (benefit)	10,919	12,305	11,366
Corporate and other [Member]
Additional significant financial information for these segments
Income tax expense (benefit)	$ 983	$ 3,107	$ 4,730