Acquisition Acquisition (Details) (Summit Acquisition [Member], USD $)	0 Months Ended
	Sep. 02, 2013 Locations
Summit Acquisition [Member]
SummitAcquisition [Line Items]
Value of Company stock exchanged for assets acquired and liabilities assumed	$ 43,200,000
Assets acquired	261,600,000
Loans acquired	207,400,000
Deposits acquired	232,300,000
Number of branches acquired	2
Goodwill acquired	13,300,000
Core deposit intangible assets acquired	5,600,000
Acquisition, Goodwill, Expected Tax Deductible Amount	$ 0