Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net (loss) income attributable to stockholders - basic	$ 11,784	$ (25,877)	$ 15,965	$ (67,642)
Net (loss) income attributable to convertible OP units	1,646	(3,893)	2,251	(10,319)
Net loss - diluted	$ 13,430	$ (29,770)	$ 18,216	$ (77,961)
Denominator:
Weighted-average shares - basic	290,465	283,827	290,295	282,714
OP units	42,742	42,783	42,792	43,356
Dilutive restricted stock awards	356	0	393	0
Adjusted weighted-average shares - diluted	333,563	326,610	333,480	326,070
Earnings per common share:
Basic and diluted	$ 0.04	$ (0.09)	$ 0.05	$ (0.24)
Share-based Payment Arrangement, Time-Based
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount				1,000
Performance Shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount				2,500