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Earnings per Share and Unit (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Earnings Per Share Basic [Line Items] |  |  |  |  |
Income (loss) per common share - basic |  | $ 0.56 | $ 0.11 | $ 1.04 | $ (0.04)
Income (loss) per common share - diluted |  | $ 0.56 | $ 0.11 | $ 1.04 | $ (0.04)
Weighted Average Limited Partnership Units Outstanding, Basic |  | 765,046 | 765,046 | 763,907 | 765,046
Continuing Operations | Parent Company [Member] |  |  |  |  |
Earnings Per Share Basic [Line Items] |  |  |  |  |
Income (loss) attributable to common stockholders - basic |  | $ 95,490 | $ 19,046 | $ 176,146 | $ (6,286)
Income (loss) attributable to common stockholders - diluted |  | $ 95,490 | $ 19,046 | $ 176,146 | $ (6,286)
Weighted average common shares/units outstanding for basic EPS/EPU |  | 169,854,000 | 169,643,000 | 169,812,000 | 168,781,000
Weighted average common shares/units outstanding for diluted EPS/EPU | [1] | 170,172,000 | 169,971,000 | 170,065,000 | 168,781,000
Income (loss) per common share - basic |  | $ 0.56 | $ 0.11 | $ 1.04 | $ (0.04)
Income (loss) per common share - diluted |  | $ 0.56 | $ 0.11 | $ 1.04 | $ (0.04)
Continuing Operations | Partnership Interest [Member] |  |  |  |  |
Earnings Per Share Basic [Line Items] |  |  |  |  |
Income (loss) attributable to common stockholders - basic |  | $ 95,922 | $ 19,133 | $ 176,942 | $ (6,314)
Income (loss) attributable to common stockholders - diluted |  | $ 95,922 | $ 19,133 | $ 176,942 | $ (6,314)
Weighted average common shares/units outstanding for basic EPS/EPU |  | 170,617,000 | 170,409,000 | 170,576,000 | 169,546,000
Weighted average common shares/units outstanding for diluted EPS/EPU |  | 170,935,000 | 170,736,000 | 170,828,000 | 169,546,000
Income (loss) per common share - basic |  | $ 0.56 | $ 0.11 | $ 1.04 | $ (0.04)
Income (loss) per common share - diluted |  | $ 0.56 | $ 0.11 | $ 1.04 | $ (0.04)
[1] | The six months ended June 30, 2020, excludes the impact of unvested restricted stock because it would be anti-dilutive.

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