Dispositions and Impairment - Schedule of Properties Held for Sale (Details) - Disposal Group, Held-for-sale, Not Discontinued Operations - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets:
Real estate, at cost	$ 37,406	$ 32,629
Real estate, intangible assets	6,417	7,941
Accumulated depreciation and amortization	(14,246)	(24,312)
Other	568	272
Assets held for sale	30,145	16,530
Liabilities:
Accounts payable and other liabilities	$ 1,122	$ 790

Disposal Group, Including Discontinued Operation, Accounts Payable And Other Liabilities

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Disposal Group, Including Discontinued Operation, Real Estate At Cost

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Amount classified as assets attributable to disposal group held for sale or disposed of.

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Amount classified as intangible assets, excluding goodwill, attributable to disposal group held for sale or disposed of.

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