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Equity and Capital - Schedule of Partnership Units Outstanding (Details) - shares | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Class of Stock [Line Items] |  |
General partner units, outstanding | 169,680,000 | 167,571,000
Limited partner units, outstanding | 765,000 | 746,000
Partners' Capital Account, Units | 170,445,184 | 168,317,000
Operating Partnership [Member] |  |
Class of Stock [Line Items] |  |
General partner units, outstanding | 169,680,138 |
Parent Company, Ownership Percentage of Outstanding Common Partnership Units of Operating Partnership | 99.60% | 99.60%
Operating Partnership [Member] | General Partner [Member] |  |
Class of Stock [Line Items] |  |
Parent Company, Ownership Percentage of Outstanding Common Partnership Units of Operating Partnership | 99.60% | 99.60%

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