Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
BASIC
Net income attributable to common shareholders	$ 71,000	$ 17,254	$ 110,397	$ 33,790
Weighted-average number of common shares outstanding - basic	275,568,868	264,785,583	275,493,019	258,911,872
Net income attributable to common shares - per common share basic (in dollars per share)	$ 0.26	$ 0.07	$ 0.40	$ 0.13
DILUTED
Impact of assumed conversions	$ 0	$ 77	$ 0	$ 184
Net income attributable to common shareholders, diluted	$ 71,000	$ 17,331	$ 110,397	$ 33,974
Effect of dilutive securities:
Shares issuable under forward sale agreements (in shares)	1,098,031	0	553,937	0
Unvested share-based payment awards and options (in shares)	799,157	1,210,241	787,133	1,185,016
Operating partnership units (in shares)	0	3,092,807	0	3,120,464
Weighted-average common shares outstanding - diluted (in shares)	277,466,056	269,088,631	276,834,089	263,217,352
Net income attributable to common shareholders - per common share diluted (in dollars per share)	$ 0.26	$ 0.06	$ 0.40	$ 0.13