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Mortgage Notes Payable (Parenthetical) (Details)

3 Months Ended

Mar. 31, 2019

World Plaza [Member]

Debt Instrument [Line Items]

Debt instrument, variable interest rate basis

LIBOR

Weighted average interest rate

5.38%

World Plaza [Member] | ABR [Member]

Debt Instrument [Line Items]

Variable interest rate on mortgage (in hundredth)

0.75%

World Plaza [Member] | LIBOR [Member]

Debt Instrument [Line Items]

Variable interest rate on mortgage (in hundredth)

2.75%

Grand Pacific Center [Member]

Debt Instrument [Line Items]

Debt Instrument, Interest Rate Terms

Interest rate is subject to reset on September 1, 2023.

Fixed interest rate on mortgage (in hundredth)

4.02%

^[1],[2]

Model Home Properties [Member] | Minimum [Member]

Debt Instrument [Line Items]

Fixed interest rate on mortgage (in hundredth)

3.70%

Model Home Properties [Member] | Maximum [Member]

Debt Instrument [Line Items]

Fixed interest rate on mortgage (in hundredth)

5.75%

[1]	Interest rate is subject to reset on September 1, 2023.
[2]	Interest rates as of March 31, 2019.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

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- Definition

Weighted average interest rate of debt outstanding.

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- Details

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