Net Loss Per Share (Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share) (Details) - shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive common share equivalents (in shares)	13,412,109	10,366,798
Unvested restricted stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive common share equivalents (in shares)	353,440	214,019
OP units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive common share equivalents (in shares)	4,178,090	1,272,200
LTIP units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive common share equivalents (in shares)	8,880,579	8,880,579