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Subsequent Events (Details)		3 Months Ended
	Oct. 09, 2020 $ / shares	Sep. 30, 2020 ft² $ / shares	Jun. 30, 2020 $ / shares	Mar. 31, 2020 $ / shares	Sep. 30, 2019 ft² $ / shares	Jun. 30, 2019 $ / shares	Mar. 31, 2019 $ / shares
Subsequent Events
Cash dividend declared per share (in dollars per share)		$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.09	$ 0.09
Area of Real Estate Property | ft²		9,526,822			9,503,964
Cash distribution declared | Subsequent Events.
Subsequent Events
Cash dividend declared per share (in dollars per share)	$ 0.09

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- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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- Definition

Aggregate dividends declared during the period for each share of common stock 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 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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- Details

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