Summary Of Significant Accounting Policies Consolidated Statement of Cash Flows - Supplemental Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Accounting Policies [Abstract]
Total interest costs incurred			$ 145,100	$ 147,939
Interest capitalized			(10,408)	(15,697)
Interest expense	$ 47,619	$ 44,237	134,692	132,242
Cash paid for interest, net of amounts capitalized			121,380	123,586
Cash paid for income taxes			329	190
Shares issued under dividend reinvestment plan			1,193	1,259
DownREIT operating partnership units redeemed for common shares			$ 103	$ 366