Property Dispositions (Details) - Properties that have been sold or classified as held for sale - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Revenues	$ 429	$ 6,830
Operating expenses	(139)	(5,362)
Gain on sale of real estate, net	15,408	0
Interest expense	(150)	(1,709)
Other gains and (losses)	(172)	(286)
(Provision for) benefit from income taxes	(7)	215
Net income attributable to noncontrolling interests	(2,874)	(2)
Income (loss) from properties sold, net of income taxes	$ 12,495	$ (314)

Disposal Group, Including Discontinued Operation, Gains (Losses) on Sales of Investment Real Estate

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Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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Amount of interest expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount after tax of income (loss) from a discontinued operation attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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