Earnings Per Share - Summary of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Numerator for basic earnings per share - net income (loss) attributable to common stockholders		$ 127,470	$ (6,767)	$ 256,183	$ 144,942
Adjustment for net income (loss) attributable to OP Units and DownREIT Units		64	(7)	(103)	99
Numerator for diluted earnings per share		$ 127,534	$ (6,774)	$ 256,080	$ 145,041
Denominator for basic earnings per share - weighted average shares (in shares)		521,848,000	463,366,000	504,420,000	455,074,000
Effect of dilutive securities:
Employee stock options (in shares)		39,000	7,000	24,000	26,000
Non-vested restricted shares and units (in shares)		1,141,000	1,238,000	968,000	1,127,000
OP units and DownREIT Units (in shares)		2,085,000	2,316,000	1,914,000	1,749,000
Employee stock purchase program (in shares)		25,000	23,000	27,000	23,000
Dilutive potential common shares (in shares)		3,290,000	3,584,000	2,933,000	2,925,000
Denominator for diluted earnings per share - adjusted weighted average shares (in shares)		525,138,000	463,366,000	507,353,000	457,999,000
Basic earnings per share (in dollars per share)		$ 0.24	$ (0.01)	$ 0.51	$ 0.32
Diluted earnings per share (in dollars per share)	[1]	$ 0.24	$ (0.01)	$ 0.50	$ 0.32
Forward sales agreement
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities (in shares)				0	17,964,603

[1] Includes adjustment to the numerator for income (loss) attributable to OP Units and DownREIT Units.