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Revenues - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2020
Jun. 30, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Change in estimate of uncollectable rental revenues   $ 41,955,000 $ 1,692,000
Uncollectible Receivables      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Change in estimate of uncollectable rental revenues $ 1,041,000 $ 1,263,000