Reserves for Unpaid Losses and Loss Adjustment Expenses (Activity in the Reserves for Unpaid Losses and Loss Adjustment Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reserves for Unpaid Losses and Loss Adjustment Expenses [Abstract]
Balance at January 1	$ 313,416	$ 296,945	$ 251,677
Less reinsurance recoverable	49,584	42,044	37,954
Net Balance at January 1	263,832	254,901	213,723
Acquisition of subsidiaries effective July 1			8,816
Incurred related to:
Current year	251,391	230,089	222,869
Prior years	9,954	(3,675)	16,366
Total incurred	261,345	226,414	239,235
Paid related to:
Current year	101,897	107,945	101,025
Prior years	110,812	109,538	105,848
Total paid	212,709	217,483	206,873
Net Balance at December 31	312,468	263,832	254,901
Plus reinsurance recoverable	70,172	49,584	42,044
Balance at December 31	$ 382,640	$ 313,416	$ 296,945