Schedule VI - Supplemental Information Concerning Property-Casualty Insurance Operations (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Supplemental Information For Property, Casualty Insurance Underwriters [Abstract]
Deferred Policy Acquisition Costs	$ 22,586	$ 24,911	$ 22,554
Reserves for Unpaid Claims and Claim Adjustment Expenses	382,640	313,416	296,945
Unearned Premiums	185,303	162,502	146,104
Earned Premiums	360,541	319,436	293,041
Net Investment Income	12,884	15,293	15,880
Claims and Claim Adjustment Expenses Incurred Related to Current Year	251,391	230,089	222,869
Claims and Claim Adjustment Expenses Incurred Related to Prior Years	9,954	(3,675)	16,366
Amortization of Deferred Policy Acquisition Costs	57,277	59,805	47,775
Paid Claims and Claims Adjustment Expenses	212,709	217,483	206,873
Premiums Written	$ 360,765	$ 332,489	$ 303,876