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Investments in Unconsolidated Entities - Balance of Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Investments [Roll Forward]
Balance as of December 31, 2019	$ 11,028
Net (loss)	(627)	$ (648)
Distributions	(2,151)
March 31, 2020	8,250
Digital Realty Joint Venture
Investments [Roll Forward]
Balance as of December 31, 2019	10,584
Net (loss)	(627)
Distributions	(2,151)
March 31, 2020	7,806
Heritage Common X
Investments [Roll Forward]
Balance as of December 31, 2019	444
Net (loss)	0
Distributions	0
March 31, 2020	$ 444

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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