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Schedule III - Real Estate and Accumulated Depreciation - Reconciliation of Real Estate Accumulated Depreciation (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Accumulated Depreciation [Roll Forward]
Balance, beginning of period	$ (5,329,182)	$ (4,517,016)	$ (3,980,198)
ASC 842 adoption impact	0	(7,846)	0
Additions (depreciation expense)	(1,036,452)	(926,046)	(882,848)
Disposals	109,230	128,352	261,928
Foreign currency transaction adjustments and others	(143,073)	(6,626)	84,102
Balance, end of year	$ (6,399,477)	$ (5,329,182)	$ (4,517,016)

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- Definition

Investment in Real Estate, Accumulated Depreciation, New Accounting Pronouncement Adoption Effectepreciation, Adoption Impact

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- Definition

SEC Schedule III, Real Estate Accumulated Depreciation, Translation and Other Adjustments

+ References

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- Definition

Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28(Column F))
-URI http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024

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- Definition

Amount of decrease to accumulated depreciation for real estate investments sold for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28(Footnote 4))
-URI http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of depreciation expense of real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28(Footnote 4))
-URI http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024

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