Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
BASIC
Net income attributable to common shareholders	$ 40,285	$ 141,560	$ 74,088	$ 189,657
Weighted-average number of common shares outstanding - basic	274,696,046	236,285,216	264,211,668	233,833,340
Net income (loss) attributable to common shares outstanding - basic (in dollars per share)	$ 0.15	$ 0.60	$ 0.28	$ 0.81
DILUTED
Impact of assumed conversions	$ 0	$ 1,573	$ 0	$ 0
Net income attributable to common shareholders	$ 40,285	$ 143,133	$ 74,088	$ 189,657
Effect of dilutive securities:
Unvested share-based payment awards (in shares)	1,326,716	359,503	1,234,553	178,303
Preferred shares - Series C (in shares)	0	4,710,570	0	0
Weighted-average common shares outstanding - diluted (in shares)	276,022,762	241,355,289	265,446,221	234,011,643
Net income (loss) attributable to common shareholders - per common share diluted (in dollars per share)	$ 0.15	$ 0.59	$ 0.28	$ 0.81