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Noncash Investing and Financing Activities - Summary (Details) - USD ($) | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Supplemental Cash Flow Information [Abstract] |  |
Accrued dividends and distributions payable |  | $ 17,191,000
Additions to real estate assets accrued but not yet paid | $ 19,478,000 | 19,757,000
Decrease in real estate assets |  | (60,059,000)
Decrease in mortgage and other indebtedness |  | 124,111,000
Decrease in operating assets and liabilities |  | 9,333,000
Decrease in intangible lease and other assets |  | (1,663,000)
Conversion of Operating Partnership common units into shares of common stock | 21,051,000 |
Increase (decrease) in lease liabilities arising from right-of-use assets | $ (200,000) | $ 4,024,000

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