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Schedule III - Real Estate and Accumulated Depreciation (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2021		Dec. 31, 2020	[1]	Dec. 31, 2019	Dec. 31, 2018
Real Estate And Accumulated Depreciation [Line Items]
Encumbrances exclude the principal balance	$ 635,128
Properties with gross assets	6,534,563	[1]	$ 1,916,770		$ 1,796,365	$ 1,745,640
Mortgage Notes
Real Estate And Accumulated Depreciation [Line Items]
Properties with gross assets	1,238,612
Unsecured Credit Facility
Real Estate And Accumulated Depreciation [Line Items]
Properties with gross assets	$ 3,737,799
[1] Includes properties classified as held for sale as of December 31, 2021.

X

- Definition

Amount of lien or mortgage outstanding on real estate investment properties 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 SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Paragraph Column B
-Subsection 28

Reference 2: 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 B))
-URI http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024

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- Definition

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.

+ References

No definition available.

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X

- Definition

Amount, before accumulated depreciation, of real estate investment by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate. Excludes real estate not held as investment or interest.

+ 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 E))
-URI http://asc.fasb.org/extlink&oid=120402810&loc=d3e638233-123024

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