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Earnings Per Share and Earnings Per Unit - Computation of Net Income per Share Basic and Net Income per Share Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Earnings Per Share [Abstract] |  |  |  |
Net income | $ 447,332 | $ 95,365 | $ 835,736 | $ 699,517
Allocation to Noncontrolling Interests – Operating Partnership | (14,847) | (3,376) | (27,903) | (24,624)
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties | (534) | (703) | (1,957) | (14,113)
Preferred distributions | (773) | (773) | (2,318) | (2,318)
Net income available to Common Shares | 431,178 | 90,513 | 803,558 | 658,462
Numerator for net income per share – diluted | $ 446,025 | $ 93,889 | $ 831,461 | $ 683,086
Weighted average Common Shares outstanding | 374,308 | 371,869 | 373,474 | 371,749
OP Units | 12,019 | 13,002 | 12,367 | 13,010
Dilutive Securities Options | 2,047 | 781 | 1,801 | 1,214
Denominator for net income per share – diluted | 388,374 | 385,652 | 387,642 | 385,973
Net income per share – basic | $ 1.15 | $ 0.24 | $ 2.15 | $ 1.77
Net income per share – diluted | $ 1.15 | $ 0.24 | $ 2.14 | $ 1.77

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