Net (Loss) Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share, Basic, Two Class Method [Abstract]
Net loss attributable to stockholders	$ (1,214)	$ 4,999	$ (4,193)	$ 5,045
Basic weighted-average shares outstanding (in shares)	98,359,167	95,915,695	97,903,996	95,480,309
Basic net (loss) income per share (in usd per share)	$ (0.01)	$ 0.05	$ (0.04)	$ 0.05
Adjustments to net income (loss) for common share equivalents	$ 0	$ (101)	$ 0	$ (101)
Diluted net income (loss)	$ (1,214)	$ 4,898	$ (4,193)	$ 4,944
Basic weighted-average shares outstanding (in shares)	98,359,167	95,915,695	97,903,996	95,480,309
Shares of unvested restricted stock (in shares)	0	14,051	0	14,771
OP Units (in shares)	0	202	0	202
Diluted weighted-average shares outstanding (in shares)	98,359,167	95,929,948	97,903,996	95,495,282
Diluted net (loss) income per share (in usd per share)	$ (0.01)	$ 0.05	$ (0.04)	$ 0.05
Antidilutive securities excluded from computation of earnings per share (in shares)	490,909		491,157
Shares of unvested restricted stock [Member]
Earnings Per Share, Basic, Two Class Method [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	10,905		11,153
OP Units [Member]
Earnings Per Share, Basic, Two Class Method [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	202		202
Class B Units [Member]
Earnings Per Share, Basic, Two Class Method [Abstract]
Antidilutive securities excluded from computation of earnings per share (in shares)	479,802		479,802
Restricted Share Plan [Member] | Restricted Stock [Member]
Earnings Per Share, Basic, Two Class Method [Abstract]
Weighted-average number of unvested restricted stock outstanding (in shares)	9,600	12,000	9,600	12,000