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Capital - Narrative (Details)	3 Months Ended
	Mar. 31, 2019 shares
Shares and Units [Abstract]
OP units outstanding (in shares)	304,825,887
OP units owned by the Company (in shares)	176,593,237
OP units owned by the Company (as a percent)	57.90%
OP units not owned by the Company (in shares)	128,232,650
OP units not owned by the Company (as a percent)	42.10%
Dividends on common stock received until performance criteria met for LTIP units (as a percent)	10.00%
Dividends on common stock received after performance criteria met for LTIP units (as a percent)	90.00%
Dividends on common stock received in periods after performance criteria met for LTIP units (as a percent)	100.00%

X

- Definition

Percentage of Dividends on Common Stock Received After Performance Criteria Met for LTIP Units

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Percentage of Dividends on Common Stock Received In Periods After Performance Criteria Met for LTIP Units

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Percentage of Dividends on Common Stock Received Until Performance Criteria Met for LTIP Units

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The number of general partner units outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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