Acquisition (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 Locations
Locations	360
Goodwill, Acquired During Period	$ 13,300,000
Finite-lived Intangible Assets Acquired	5,600,000
Nonvested Share Awards Granted in Period	421,803
Summit Acquisition [Member]
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	43,200,000
Summit Acquisition Total Assets	261,600,000
Summit Acquisition Total Loans	207,400,000
Summit Acquisition Total Deposits	232,300,000
Locations	2
Goodwill, Acquired During Period	13,300,000
Finite-lived Intangible Assets Acquired	5,600,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	14 years
Business Acquisition, Goodwill, Expected Tax Deductible Amount	0
Nonvested Share Awards Granted in Period	42,674
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options	$ 1,300,000
Summit Acquisition [Member] | Minimum [Member]
Stock awards vesting period (in years)	3 years
Summit Acquisition [Member] | Maximum [Member]
Stock awards vesting period (in years)	4 years