Summary Of Significant Accounting Policies Consolidated Statement of Cash Flows - Supplemental Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Accounting Policies [Abstract]
Total interest costs incurred			$ 98,466	$ 93,256
Interest capitalized			(10,461)	(11,147)
Interest expense	$ 44,312	$ 42,884	88,005	82,109
Cash paid for interest, net of amounts capitalized			86,045	75,389
Cash paid for income taxes			191	779
Shares issued under dividend reinvestment plan			839	851
DownREIT operating partnership units redeemed for common shares			$ 366	$ 668