Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 53,090	$ 53,090	$ 48,963	$ 53,090	$ 48,963	$ 48,963	$ 48,963	$ 53,339	$ 45,412
Finite-lived Intangible Assets Acquired	0	6,720	0	6,720	7,927
Finite Lived Intangible Assets Fully Amortized Portion	0	(1,293)	(4,376)	(1,293)	(4,376)
Impairment of Intangible Assets, Finite-lived	0	(804)	0	(804)	0
Finite-Lived Intangible Assets, Accumulated Amortization	(34,267)	(32,659)	(30,285)	(34,267)	(30,285)	(33,079)	(31,715)	(33,149)	(30,689)
Amortization of Intangible Assets	(1,608)	(1,677)	(1,512)	(4,649)	(3,972)
Finite-Lived Intangible Assets, Net	18,823	20,431	18,678	18,823	18,678
CDI and CRI [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Fully Amortized Portion	0	(1,293)	(4,376)	(1,293)	(4,376)
Impairment of Intangible Assets, Finite-lived	$ 0	$ (1,300)	$ 0	$ (1,300)	$ 0