Capital Stock (Details) (USD $)	0 Months Ended			3 Months Ended		0 Months Ended	1 Months Ended
	Mar. 31, 2015	Jan. 12, 2015	Dec. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Apr. 10, 2015	Nov. 30, 2014
Dividends Payable [Line Items]
Common stock, shares authorized	400,000,000		400,000,000	400,000,000
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01	$ 0.01
Proceeds from sale of common stock				$ 7,829,000	$ 0
Preferred stock, shares authorized	10,000,000		10,000,000	10,000,000
Preferred stock, par value (in dollars per share)	$ 0.01		$ 0.01	$ 0.01
Preferred Stock, shares outstanding	0		0	0
Operating Partnership Units Option To Redeem For Common Stock Ratio				1
Payment Date		Jan. 12, 2015
Record Date	Mar. 31, 2015		Dec. 31, 2014
Dividends per Share (in dollars per share)		$ 0.1025
Subsequent Event [Member]
Dividends Payable [Line Items]
Payment Date						Apr. 10, 2015
Dividends per Share (in dollars per share)						$ 0.1250
Unaffiliated Third Parties [Member]
Dividends Payable [Line Items]
Units of Partnership Interest, Amount	0		0	0
Common Stock [Member]
Dividends Payable [Line Items]
Aggregate offering price							200,000,000
Common stock sold in offering				524,606
Share price of common stock sold	$ 15.18			$ 15.18
Proceeds from sale of common stock				$ 7,800,000