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Consolidated Statement of Equity (Unaudited) (Parenthetical) - $ / shares | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Shares pursuant to dividend reinvestment plan (in shares) | 61,861 | 96,268
Shares due to exercise of employee stock options and issuance of directors' deferred stock (in shares) | 8,007 | 910
Limited Partner |  |
Issuance of partnership units pursuant to dividend reinvestment plan (in shares) | 13,704 | 19,493
Twinbrook Metro Station | Restricted Stock Units (RSUs) |  |
Restricted units released pursuant to first escrow release, shares |  | 1,416,071
Dividend Distributions Payable |  |
Distributions payable common stock, per share (in usd per share) | $ 0.57 | $ 0.53
Distributions partnership units, per unit (in usd per share) | 0.57 | 0.53
Series D Cumulative Redeemable Preferred Stock | Dividend Distributions Payable |  |
Distributions payable on preferred stock, per share (in usd per share) | 38.28 | 38.28
Series E Cumulative Redeemable Preferred Stock | Dividend Distributions Payable |  |
Distributions payable on preferred stock, per share (in usd per share) | $ 37.50 | $ 37.50

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