Investments Investments (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Investments Schedule [Abstract]
Interest Income, Securities, Operating, Taxable	$ 7,668	$ 6,920	$ 5,388	$ 14,584	$ 10,951
Interest Income, Securities, Operating, Tax Exempt	3,333	3,328	2,716	6,661	5,141
Investment Income, Dividend	985	575	310	1,564	538
Investment Income, Interest and Dividend	$ 11,986	$ 10,823	$ 8,414	$ 22,809	$ 16,630