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Earnings per Share and Unit (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Earnings Per Share Basic [Line Items] |  |  |  |
Income per common share - basic |  | $ 2.12 | $ 0.27 | $ 1.43
Income per common share - diluted |  | $ 2.12 | $ 0.26 | $ 1.43
Weighted Average Limited Partnership Units Outstanding, Basic |  | 761,955 | 765,046 | 464,286
Continuing Operations [Member] | Parent Company [Member] |  |  |  |
Earnings Per Share Basic [Line Items] |  |  |  |
Income attributable to common stockholders/unit holders - basic |  | $ 361,411 | $ 44,889 | $ 239,430
Income attributable to common stockholders/unit holders - diluted |  | $ 361,411 | $ 44,889 | $ 239,430
Weighted average common shares/units outstanding for basic EPS/EPU |  | 170,236,000 | 169,231,000 | 167,526,000
Weighted average common shares/units outstanding for diluted EPS/EPU | [1],[2] | 170,694,000 | 169,460,000 | 167,771,000
Income per common share - basic |  | $ 2.12 | $ 0.27 | $ 1.43
Income per common share - diluted |  | $ 2.12 | $ 0.26 | $ 1.43
Continuing Operations [Member] | Partnership Interest [Member] |  |  |  |
Earnings Per Share Basic [Line Items] |  |  |  |
Income attributable to common stockholders/unit holders - basic |  | $ 363,026 | $ 45,092 | $ 240,064
Income attributable to common stockholders/unit holders - diluted |  | $ 363,026 | $ 45,092 | $ 240,064
Weighted average common shares/units outstanding for basic EPS/EPU |  | 170,998,000 | 169,997,000 | 167,990,000
Weighted average common shares/units outstanding for diluted EPS/EPU | [1],[2] | 171,456,000 | 170,225,000 | 168,235,000
Income per common share - basic |  | $ 2.12 | $ 0.27 | $ 1.43
Income per common share - diluted |  | $ 2.12 | $ 0.26 | $ 1.43
[1] | Includes the dilutive impact of unvested restricted stock.
[2] | Using the treasury stock method, weighted average common shares outstanding for basic and diluted earnings per share exclude 1.0 million and 1.9 million shares issuable under the forward ATM equity offering outstanding during 2021 and 2019, respectively, as they would be anti-dilutive.

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