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Summary Of Significant Accounting Policies Consolidated Statement of Cash Flows - Supplemental Disclosures (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Accounting Policies [Abstract] |  |
Total interest costs incurred | $ 47,325 | $ 48,999
Interest capitalized | (4,850) | (5,306)
Interest expense | 42,475 | 43,693
Cash paid for interest, net of amounts capitalized | 34,997 | 39,199
Cash paid (refunded) for income taxes | 11 | (5)
Shares issued under dividend reinvestment plan | 396 | 420
DownREIT operating partnership units redeemed for common shares | $ 103 | $ 366

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