Number of Joint Ventures

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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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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Net rentable area for properties owned.

+ References

No definition available.

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- Definition

Amount of increase in noncontrolling interest from sale of a portion of the parent's controlling interest.

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- Definition

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

+ References

No definition available.

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- Definition

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

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No definition available.

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- Definition

The cash inflow from the additional capital contribution to the entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 230
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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Organization and Business - Narrative (Details)			12 Months Ended
Organization and Business - Narrative (Details)	Jul. 10, 2009 USD ($) shares	Jun. 12, 2009 USD ($) $ / shares shares	Dec. 31, 2018 ft² Investment apartment property $ / shares shares	Dec. 31, 2009 shares	Jun. 30, 2018 $ / shares	Mar. 31, 2018 $ / shares	Mar. 13, 2018 $ / shares	Dec. 31, 2017 shares
Class of Stock [Line Items]
Number of multifamily real estate properties owned \| property			2
Number of units in real estate property (in number of units or apartments) \| apartment			744
Residential Real Estate [Member]
Class of Stock [Line Items]
Number of multifamily real estate properties owned \| property			35
Number of units in real estate property (in number of units or apartments) \| apartment			9,442
Commercial Real Estate [Member]
Class of Stock [Line Items]
Number of multifamily real estate properties owned \| property			2
Net rentable area (in square feet) \| ft²			21,130
Advisor [Member]
Class of Stock [Line Items]
Investment from advisor \| $	$ 1,000
Common Stock [Member]
Class of Stock [Line Items]
Share price (in dollars per share) \| $ / shares			$ 9.24		$ 10.24	$ 10.24	$ 9.24
Stock issued to advisor (in shares)			74,650,139					75,479,409
Common Stock [Member] \| Sponsor [Member]
Class of Stock [Line Items]
Issuance of common stock (in shares)		22,223		22,223
Share price (in dollars per share) \| $ / shares		$ 9
Proceeds from issuance of common stock \| $		$ 200,007
Convertible Stock [Member]
Class of Stock [Line Items]
Stock issued to advisor (in shares)			1,000					1,000
Convertible Stock [Member] \| Advisor [Member]
Class of Stock [Line Items]
Issuance of common stock (in shares)			1,000	1,000
Stock issued to advisor (in shares)	1,000
BREIT Steadfast MF JV LP [Member]
Class of Stock [Line Items]
Ownership percentage			10.00%
BREIT Steadfast MF JV LP [Member] \| Residential Real Estate [Member]
Class of Stock [Line Items]
Number of multifamily real estate properties owned \| property			20
Number of Joint Ventures \| Investment			1
Number of units in real estate property (in number of units or apartments) \| apartment			4,584