Goodwill and Other Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Summary of finite-lived intangible assets
Gross Carrying Amount	$ 40,287	$ 15,254
Accumulated Amortization	(12,057)	(9,188)
Net Carrying Amount	28,230	6,066
Core deposit intangible
Summary of finite-lived intangible assets
Gross Carrying Amount	38,317	13,284
Accumulated Amortization	(11,750)	(9,013)
Net Carrying Amount	26,567	4,271
Customer relationship intangible
Summary of finite-lived intangible assets
Gross Carrying Amount	1,970	1,970
Accumulated Amortization	(307)	(175)
Net Carrying Amount	$ 1,663	$ 1,795