Parking Income

No definition available.

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- Definition

Tenants Reimbursements

+ References

No definition available.

+ Details

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- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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- Definition

Other operating costs incurred during the reporting period and may include amounts paid to maintain the property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

The number of units in a real estate property owned as of the balance sheet date.

+ References

No definition available.

+ Details

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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.

+ Details

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- Details

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- Details

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Organization and Basis of Presentation - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($) ft² building_unit properties	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) ft² building_unit properties	Jun. 30, 2018 USD ($)
Real Estate Properties [Line Items]
Number of Real Estate Properties \| properties	62		62
Parking Income \| $	$ 6,700	$ 6,600	$ 13,100	$ 13,000
Cost of Other Property Operating Expense \| $	$ 32,113	$ 34,464	$ 64,287	69,622
Asset under Construction
Real Estate Properties [Line Items]
Number of Real Estate Properties \| properties	8		8
Future Development
Real Estate Properties [Line Items]
Number of Real Estate Properties \| properties	40		40
Area of real estate property (in square feet) \| ft²	21,900,000		21,900,000
Commercial Real Estate [Member]
Real Estate Properties [Line Items]
Number of Real Estate Properties \| properties	46		46
Area of real estate property (in square feet) \| ft²	12,800,000		12,800,000
Commercial Real Estate [Member] \| Asset under Construction
Real Estate Properties [Line Items]
Number of Real Estate Properties \| properties	4		4
Area of real estate property (in square feet) \| ft²	943,000		943,000
Multifamily
Real Estate Properties [Line Items]
Number of Real Estate Properties \| properties	16		16
Number of Units in Real Estate Property \| building_unit	6,321		6,321
Multifamily \| Asset under Construction
Real Estate Properties [Line Items]
Number of Real Estate Properties \| properties	4		4
Number of Units in Real Estate Property \| building_unit	1,476		1,476
Wholly Owned Properties \| Future Development
Real Estate Properties [Line Items]
Area of real estate property (in square feet) \| ft²	18,700,000		18,700,000
Wholly Owned Properties \| Commercial Real Estate [Member]
Real Estate Properties [Line Items]
Area of real estate property (in square feet) \| ft²	11,100,000		11,100,000
Wholly Owned Properties \| Commercial Real Estate [Member] \| Asset under Construction
Real Estate Properties [Line Items]
Area of real estate property (in square feet) \| ft²	821,000		821,000
Wholly Owned Properties \| Multifamily
Real Estate Properties [Line Items]
Number of Units in Real Estate Property \| building_unit	4,537		4,537
Wholly Owned Properties \| Multifamily \| Asset under Construction
Real Estate Properties [Line Items]
Area of real estate property (in square feet) \| ft²	1,298		1,298
JBG Smith, LP
Real Estate Properties [Line Items]
Ownership interest by parent	89.80%		89.80%
Restatement Adjustment [Member]
Real Estate Properties [Line Items]
Parking Income \| $	$ 6,600			13,000
Reimbursements from Tenants \| $	8,000			18,900
Cost of Other Property Operating Expense \| $	$ 4,000			$ 8,300