Derivative Financial Instruments - Summary of Outstanding Swaptions (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Assets, at Fair Value	$ 4,784,000	$ 2,446,000
Interest Rate Swaption [Member]
Derivatives, Fair Value [Line Items]
Swaption Cost	1,520,000
Assets, at Fair Value	1,200,000	0
Derivative Instruments Average Months To Expiration	11.5
Notional Amount	100,000,000
Derivative Average Fixed Interest Rate	2.38%
Derivative Avergage Receive Rate	3 Month
Term (Years)	5 years
Interest Rate Swaption [Member] | Less Than Or Equal To One Year [Member]
Derivatives, Fair Value [Line Items]
Swaption Cost	1,520,000
Assets, at Fair Value	1,200,000
Derivative Instruments Average Months To Expiration	11.5
Notional Amount	$ 100,000,000
Derivative Average Fixed Interest Rate	2.38%
Derivative Avergage Receive Rate	3 Month
Term (Years)	5 years