Derivatives - Summary of Designated Derivative Instruments Classified as Derivative Assets (Details)	6 Months Ended
	Jun. 30, 2015 USD ($) Instrument	Jan. 31, 2015 USD ($)
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Gain recognized in Accumulated Comprehensive Income	$ 1,425,000
Interest Rate Swap
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Quantity | Instrument	4
Maturity Dates	Oct. 31, 2028
Notional Amount	$ 109,143,000	$ 109,100,000
Fair Market Value	3,040,000
Credit Risk Adjustment	(711,000)
Adjusted Fair Market Value	2,329,000
Deferred Tax Expense	904,000
Gain recognized in Accumulated Comprehensive Income	1,425,000
Gain Recognized into Earnings	$ 356,000
Interest Rate Swap | Minimum
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Hedge Interest Rates	2.17%
Interest Rate Swap | Maximum
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Hedge Interest Rates	2.18%