Income per Share - Summary of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income per Share
Net (loss) income available to common stockholders	$ 44,177	$ (37,370)	$ 53,676	$ 202,859	$ 315,577	$ 49,827	$ 31,738	$ 95,869	$ 263,342	$ 493,011	$ 249,930
Weighted average shares outstanding-basic (shares)									260,098,978	208,325,823	206,035,408
Potentially dilutive common shares:
Unvested incentive units (shares)									120,775	165,185	141,260
Unvested restricted stock (shares)									177,244
Forward equity offering (shares)									1,596,476	813,073	33,315
Market performance-based awards (shares)									529,035	158,166	463,488
Weighted average shares/units outstanding-diluted (shares/units)									262,522,508	209,462,247	206,673,471
Earnings per unit:
Basic (in dollars per share)	$ 0.16	$ (0.14)	$ 0.20	$ 0.91	$ 1.51	$ 0.24	$ 0.15	$ 0.46	$ 1.01	$ 2.37	$ 1.21
Diluted (in dollars per share)	$ 0.16	$ (0.14)	$ 0.20	$ 0.90	$ 1.50	$ 0.24	$ 0.15	$ 0.46	$ 1.00	$ 2.35	$ 1.21