Costs funded (in percentage)

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- Definition

Difference Between Purchase Price And Carrying Value

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No definition available.

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- Definition

Net Payments To Minority Shareholders

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- Definition

Portion of costs funded (in percentage)

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No definition available.

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- Definition

Preferred equity funded

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No definition available.

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- Definition

Repayment of Preferred Equity

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- Definition

Stabilization definition for Salesforce Tower

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No definition available.

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- Definition

Unpaid principal balance of the members' notes payable contributed to equity

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No definition available.

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- Definition

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

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No definition available.

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- Definition

Carrying amount of the equity interests owned by noncontrolling partners of a limited partnership included in the entity's consolidated financial statements.

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No definition available.

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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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No definition available.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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No definition available.

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- Definition

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

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- Definition

Net rentable area for properties owned.

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No definition available.

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- Definition

Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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Noncontrolling Interests (Property Partnerships) (Narrative) (Details) $ in Thousands			12 Months Ended
	Apr. 01, 2019 USD ($)	May 12, 2016 ft²	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 06, 2017 USD ($)
Noncontrolling Interest [Line Items]
Noncontrolling Interest in Limited Partnerships			$ 1,728,689	$ 1,711,445
Payments to Noncontrolling Interests			69,913	$ 82,501	$ 54,342
Acquisition of noncontrolling interest in property partnership			(186,963)
Salesforce Tower \| Consolidated Properties [Member]
Noncontrolling Interest [Line Items]
Portion of costs funded (in percentage)		50.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		5.00%
Debt Instrument, Basis Spread on Variable Rate		3.00%
Stabilization definition for Salesforce Tower		The term stabilization date was defined in the agreement to generally mean the first date after completion upon which Salesforce Tower is (1) at least 90% leased and (2) 50% occupied by tenants that are paying rent.
Net Rentable Area (in sf) \| ft²		1,421,000
Salesforce Tower \| Boston Properties, Inc. [Member] \| Consolidated Properties [Member]
Noncontrolling Interest [Line Items]
Costs funded (in percentage)		2.50%
Preferred equity funded			$ 22,600
Salesforce Tower
Noncontrolling Interest [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	5.00%
Payments to Noncontrolling Interests	$ 210,900
Repayment of Preferred Equity	24,100
Net Payments To Minority Shareholders	186,800
Acquisition of noncontrolling interest in property partnership	$ 162,500
767 Fifth Avenue (the General Motors Building) [Member] \| Consolidated Properties [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest in Limited Partnerships						$ 109,600
Noncontrolling Interest, Ownership Percentage by Parent						60.00%
Unpaid principal balance of the members' notes payable contributed to equity						$ 273,900
Consolidation, Eliminations [Member] \| 767 Fifth Avenue (the General Motors Building) [Member] \| Consolidated Properties [Member]
Noncontrolling Interest [Line Items]
Unpaid principal balance of the members' notes payable contributed to equity						$ 164,400