Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Details 1) (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	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 53,090	$ 48,963	$ 53,339	$ 53,090	$ 53,339	$ 48,963	$ 45,412	$ 45,412
Finite-lived Intangible Assets Acquired	6,720	0	7,927	6,720	7,927
Finite Lived Intangible Assets Fully Amortized Portion	1,293	0	0	1,293	0
Impairment of Intangible Assets, Finite-lived	804	0	0	804	0
Finite-Lived Intangible Assets, Accumulated Amortization	(32,659)	(33,079)	(33,149)	(32,659)	(33,149)	(31,715)	(31,865)	(30,689)
Amortization of Intangible Assets	(1,677)	(1,364)	(1,284)	(3,041)	(2,460)
Finite-Lived Intangible Assets, Net	20,431	15,884	20,190	20,431	20,190
CDI and CRI [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Fully Amortized Portion	(1,293)	0	0	(1,293)	0
Impairment of Intangible Assets, Finite-lived	$ (1,300)	$ 0	$ 0	$ (1,300)	$ 0