Accretion of non controlling interest liability.

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- Definition

Agreed contribution in project cost.

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No definition available.

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- Definition

Area Of Irs Campus Building.

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- Definition

Contribution allocated in non controlling interest.

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No definition available.

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- Definition

Percentage Of Building Leased To IRS.

+ References

No definition available.

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- Definition

Percentage of qualified investments.

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No definition available.

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- Definition

Percentage of tax credit recapture.

+ References

No definition available.

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- Definition

Rate Of Return On Noncontrolling Interest

+ References

No definition available.

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- Definition

Recognition Of Cash Received As Revenue Net Of Allocated Expenses.

+ References

No definition available.

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- Definition

Recognition Of Cash Received As Revenue Net Of Allocated Expenses, Period Credit Recapture in Years

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No definition available.

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- Definition

Sum of the carrying amounts of deferred costs that are expected to be recognized as a charge against earnings in periods after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.10)

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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 13

-Section A

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-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

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-Subparagraph (SAB TOPIC 13.A.4(a).Q1 Response)

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- Definition

A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

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The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 9

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.9)

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Tax Credit Transactions (Details) (USD $)	12 Months Ended
Tax Credit Transactions (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 17, 2008 sqft	Aug. 27, 2010
Tax Credit Transactions (Textuals) [Abstract]
Historic tax credit transaction income	$ 11,853,000us-gaap_IncomeTaxCreditsAndAdjustments	$ 11,853,000us-gaap_IncomeTaxCreditsAndAdjustments	$ 11,840,000us-gaap_IncomeTaxCreditsAndAdjustments
Deferred transaction costs	125,224,000us-gaap_DeferredCosts	122,954,000us-gaap_DeferredCosts
Historic Tax Credit Transaction [Member]
Tax Credit Transactions (Textuals) [Abstract]
Area of IRS Philadelphia Campus building (in square foot)				862,692
Percentage of building leased to IRS				100.00%
Percentage of tax credit recapture	20.00%
Contribution allocated in non controlling interest	3,000,000	2,800,000
Recognition of cash received as revenue net of allocated expenses on or after September 2011, period	over the five year credit recapture period as defined in the Internal Revenue Code
Historic tax credit transaction income	11,900,000	(11,900,000)
Allocated expenses within other income (expense)	500,000
Deferred transaction costs	500,000	1,000,000
Rate of return on noncontrolling interest expected	2.00%
Accretion of non-controlling interest liability	(1,400,000)		(1,300,000)
Recognition of cash received as revenue net of allocated expenses on or after September 2011, period in years	5 years
New Markets Tax Credit Transaction [Member]
Tax Credit Transactions (Textuals) [Abstract]
Percentage of tax credit recapture	100.00%
Percentage of qualified investments	39.00%
Recognition of cash received as revenue net of allocated expenses on or after September 2011, period in years	7 years
Brandywine Realty Trust [Member] \| New Markets Tax Credit Transaction [Member]
Tax Credit Transactions (Textuals) [Abstract]
Deferred transaction costs	5,300,000	5,300,000
USB [Member] \| Historic Tax Credit Transaction [Member]
Tax Credit Transactions (Textuals) [Abstract]
Agreed contribution in project cost by USB					64,100,000
USB contributions presented within deferred income	15,100,000	26,800,000
Allocated expenses within other income (expense)		(500,000)
USB [Member] \| New Markets Tax Credit Transaction [Member]
Tax Credit Transactions (Textuals) [Abstract]
USB contributions presented within deferred income	$ 13,300,000