Consolidated Statement Of Shareholders' Equity - USD ($) $ in Thousands	Total	downREIT OP units	Preferred Shares	Common Shares	Common Shares downREIT OP units	Additional Paid-in Capital	Additional Paid-in Capital downREIT OP units	Accumulated Dividends in Excess of Net Income	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest	Noncontrolling Interest downREIT OP units
Beginning balance (in shares) at Dec. 31, 2023			398,878	82,775,286
Beginning balance at Dec. 31, 2023	$ 3,042,159		$ 159,822	$ 833		$ 3,959,276		$ (1,160,474)	$ 4,052	$ 78,650
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss), excluding amounts attributable to redeemable noncontrolling interests	56,446							56,736		(290)
Other comprehensive income (loss) - change in fair value of interest rate swaps, excluding portion attributable to redeemable noncontrolling interests	2,847								2,847
Dividends declared to common shareholders	(90,479)							(90,479)
Dividends declared to preferred shareholders	(2,008)							(2,008)
Distributions declared to noncontrolling interests, excluding amounts attributable to redeemable noncontrolling interests	(798)									(798)
Common shares issued, net (in shares)				62,923
Common shares issued, net	6,377			$ 1		6,376
Shares issued under dividend reinvestment plan (in shares)				4,628
Shares issued under dividend reinvestment plan	355					355
Share-based compensation expense, net of forfeitures (in shares)				147,407
Share-based compensation expense, net of forfeitures	4,430			$ 1		4,429
Shares withheld for employee taxes (in shares)				(45,804)
Shares withheld for employee taxes	(4,614)					(4,614)
Conversion downREIT OP units (in Shares)					4,160
Conversion of downREIT OP units					$ 0		$ 366
Conversion of downREIT OP units		$ 0									$ (366)
Contributions from noncontrolling interests	725									725
Purchase of capped calls	(19,448)					(19,448)
Ending balance (in shares) at Mar. 31, 2024			398,878	82,948,600
Ending balance at Mar. 31, 2024	2,995,992		$ 159,822	$ 835		3,946,740		(1,196,225)	6,899	77,921
Beginning balance (in shares) at Dec. 31, 2024			398,878	85,666,220
Beginning balance at Dec. 31, 2024	3,244,144		$ 159,822	$ 862		4,248,824		(1,242,654)	4,740	72,550
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss), excluding amounts attributable to redeemable noncontrolling interests	64,575							63,768		807
Other comprehensive income (loss) - change in fair value of interest rate swaps, excluding portion attributable to redeemable noncontrolling interests	(1,144)								(1,144)
Dividends declared to common shareholders	(94,875)							(94,875)
Dividends declared to preferred shareholders	(2,008)							(2,008)
Distributions declared to noncontrolling interests, excluding amounts attributable to redeemable noncontrolling interests	(869)									(869)
Common shares issued, net (in shares)				476,543
Common shares issued, net	54,494			$ 5		54,489
Shares issued under dividend reinvestment plan (in shares)				4,291
Shares issued under dividend reinvestment plan	444					444
Share-based compensation expense, net of forfeitures (in shares)				148,617
Share-based compensation expense, net of forfeitures	4,112			$ 2		4,110
Shares withheld for employee taxes (in shares)				(41,824)
Shares withheld for employee taxes	(4,607)					(4,607)
Conversion downREIT OP units (in Shares)					1,158
Conversion of downREIT OP units					$ 0		$ 103
Conversion of downREIT OP units		$ 0									$ (103)
Ending balance (in shares) at Mar. 31, 2025			398,878	86,255,005
Ending balance at Mar. 31, 2025	$ 3,264,266		$ 159,822	$ 869		$ 4,303,363		$ (1,275,769)	$ 3,596	$ 72,385