Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
BASIC
Net income attributable to common shareholders	$ 16,536	$ 26,405
Weighted-average number of common shares outstanding - basic	253,038,161	232,538,495
Net income (loss) attributable to common shares outstanding - basic (in dollars per share)	$ 0.07	$ 0.11
DILUTED
Impact of assumed conversions	$ 107	$ 1
Net income attributable to common shareholders	$ 16,643	$ 26,406
Effect of dilutive securities:
Unvested share-based payment awards (in shares)	1,160,994	53,274
OP Units (in shares)	3,148,122	3,550,374
Weighted-average common shares outstanding - diluted (in shares)	257,347,277	236,142,143
Net income (loss) attributable to common shareholders - per common share diluted (in dollars per share)	$ 0.06	$ 0.11

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