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Segment Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended |  |  |  |
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 Reportable_Segments | Dec. 31, 2013 | Dec. 31, 2012 | Oct. 17, 2014 sqft Real_Estate_Investments | Jul. 31, 2014 Properties | Apr. 03, 2014 | Dec. 19, 2013 Storey
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Reportable Segments |  |  |  |  |  |  |  |  |  |  | 7 us-gaap_NumberOfReportableSegments |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | $ 4,603,692 us-gaap_RealEstateInvestmentPropertyAtCost |  |  |  |  | $ 4,669,289 us-gaap_RealEstateInvestmentPropertyAtCost |  |  |  |  | $ 4,603,692 us-gaap_RealEstateInvestmentPropertyAtCost |  | $ 4,669,289 us-gaap_RealEstateInvestmentPropertyAtCost |  | $ 4,726,169 us-gaap_RealEstateInvestmentPropertyAtCost |  |  |  |
Real Estate Held-for-sale | 27,436 us-gaap_RealEstateHeldforsale | [1] |  |  |  | 0 us-gaap_RealEstateHeldforsale | [1] |  |  |  | 27,436 us-gaap_RealEstateHeldforsale | [1] | 0 us-gaap_RealEstateHeldforsale | [1] | 0 us-gaap_RealEstateHeldforsale |  |  |  |
Real Estate Investment Property, at Cost, Gross of Held For Sale | 4,631,128 bdn_RealEstateInvestmentPropertyatCostGrossofHeldForSale |  |  |  |  | 4,669,289 bdn_RealEstateInvestmentPropertyatCostGrossofHeldForSale |  |  |  |  | 4,631,128 bdn_RealEstateInvestmentPropertyatCostGrossofHeldForSale |  | 4,669,289 bdn_RealEstateInvestmentPropertyatCostGrossofHeldForSale |  | 4,726,169 bdn_RealEstateInvestmentPropertyatCostGrossofHeldForSale |  |  |  |
Construction-in-progress | 201,360 us-gaap_DevelopmentInProcess |  |  |  |  | 74,174 us-gaap_DevelopmentInProcess |  |  |  |  | 201,360 us-gaap_DevelopmentInProcess |  | 74,174 us-gaap_DevelopmentInProcess |  |  |  |  |  |
Land inventory | 90,603 us-gaap_LandAvailableForDevelopment |  |  |  |  | 93,351 us-gaap_LandAvailableForDevelopment |  |  |  |  | 90,603 us-gaap_LandAvailableForDevelopment |  | 93,351 us-gaap_LandAvailableForDevelopment |  |  |  |  |  |
Total revenue | 147,810 us-gaap_RealEstateRevenueNet |  | 146,558 us-gaap_RealEstateRevenueNet | 150,500 us-gaap_RealEstateRevenueNet | 152,114 us-gaap_RealEstateRevenueNet | 138,658 us-gaap_RealEstateRevenueNet |  | 143,354 us-gaap_RealEstateRevenueNet | 140,664 us-gaap_RealEstateRevenueNet | 139,554 us-gaap_RealEstateRevenueNet | 596,982 us-gaap_RealEstateRevenueNet |  | 562,210 us-gaap_RealEstateRevenueNet |  | 535,679 us-gaap_RealEstateRevenueNet |  |  |  |
Property operating expenses, real estate taxes and third party management expenses |  |  |  |  |  |  |  |  |  |  | (235,965)us-gaap_CostOfGoodsAndServicesSold |  | (221,769)us-gaap_CostOfGoodsAndServicesSold |  | (210,848)us-gaap_CostOfGoodsAndServicesSold |  |  |  |
Net operating income |  |  |  |  |  |  |  |  |  |  | 361,017 us-gaap_GrossProfit |  | 340,441 us-gaap_GrossProfit |  | 324,831 us-gaap_GrossProfit |  |  |  |
Equity Method Investments | 225,004 us-gaap_EquityMethodInvestments |  |  |  |  | 180,512 us-gaap_EquityMethodInvestments |  |  |  |  | 225,004 us-gaap_EquityMethodInvestments |  | 180,512 us-gaap_EquityMethodInvestments |  | 193,555 us-gaap_EquityMethodInvestments |  |  |  |
Equity in income (loss) of real estate ventures |  |  |  |  |  |  |  |  |  |  | (790)us-gaap_IncomeLossFromEquityMethodInvestments |  | 3,664 us-gaap_IncomeLossFromEquityMethodInvestments |  | 2,741 us-gaap_IncomeLossFromEquityMethodInvestments |  |  |  |
Pennsylvania Suburbs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | 1,178,470 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |  | 1,199,105 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |  | 1,178,470 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 1,199,105 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 1,178,730 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  | 160,630 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 153,426 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 150,075 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |
Property operating expenses, real estate taxes and third party management expenses |  |  |  |  |  |  |  |  |  |  | (55,062)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | (54,506)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | (52,657)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |
Net operating income |  |  |  |  |  |  |  |  |  |  | 105,568 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 98,920 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 97,418 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |
Equity Method Investments | 17,385 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |  | 17,272 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |  | 17,385 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 17,272 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 33,160 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |
Equity in income (loss) of real estate ventures |  |  |  |  |  |  |  |  |  |  | (777)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 925 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  | 520 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PennsylvaniaMember |  |  |  |
Philadelphia CBD [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | 1,338,655 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |  | 1,300,666 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |  | 1,338,655 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 1,300,666 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 988,590 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  | 201,809 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 146,081 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 131,592 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |
Property operating expenses, real estate taxes and third party management expenses |  |  |  |  |  |  |  |  |  |  | (75,262)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | (55,702)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | (50,787)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |
Net operating income |  |  |  |  |  |  |  |  |  |  | 126,547 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 90,379 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 80,805 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |
Equity Method Investments | 27,137 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |  | 19,975 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |  | 27,137 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 19,975 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 27,859 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |
Equity in income (loss) of real estate ventures |  |  |  |  |  |  |  |  |  |  | 46 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 1,547 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  | 1,113 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_PhiladelphiaCbdMember |  |  |  |
Metropolitan, D.C. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | 1,183,652 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |  | 1,214,965 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |  | 1,183,652 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | 1,214,965 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | 1,193,200 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  | 113,834 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | 116,048 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | 107,656 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |
Property operating expenses, real estate taxes and third party management expenses |  |  |  |  |  |  |  |  |  |  | (43,399)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | (42,641)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | (41,485)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |
Net operating income |  |  |  |  |  |  |  |  |  |  | 70,435 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | 73,407 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | 66,171 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |
Equity Method Investments | 73,127 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |  | 59,905 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |  | 73,127 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | 59,905 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | 49,169 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |
Equity in income (loss) of real estate ventures |  |  |  |  |  |  |  |  |  |  | (317)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | 130 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  | (648)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_MetropolitanDcMember |  |  |  |
New Jersey/ Delaware [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | 392,581 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |  | 414,716 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |  | 392,581 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 414,716 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 546,644 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  | 60,403 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 60,262 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 59,671 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |
Property operating expenses, real estate taxes and third party management expenses |  |  |  |  |  |  |  |  |  |  | (31,650)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | (29,981)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | (28,506)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |
Net operating income |  |  |  |  |  |  |  |  |  |  | 28,753 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 30,281 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 31,165 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |
Equity Method Investments | 0 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |  | 0 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |  | 0 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 0 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 17,294 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |
Equity in income (loss) of real estate ventures |  |  |  |  |  |  |  |  |  |  | 989 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 1,245 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  | 1,803 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_NewJerseyDelawareMember |  |  |  |
Richmond, Virginia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | 317,076 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |  | 310,397 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |  | 317,076 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 310,397 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 309,923 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  | 34,180 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 35,058 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 35,701 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |
Property operating expenses, real estate taxes and third party management expenses |  |  |  |  |  |  |  |  |  |  | (15,399)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | (14,916)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | (14,484)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |
Net operating income |  |  |  |  |  |  |  |  |  |  | 18,781 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 20,142 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 21,217 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |
Equity Method Investments | 1,574 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |  | 1,400 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |  | 1,574 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 1,400 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 1,245 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |
Equity in income (loss) of real estate ventures |  |  |  |  |  |  |  |  |  |  | 349 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 381 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  | 269 us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_RichmondVirginiaMember |  |  |  |
CALIFORNIA |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | 193,258 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  |  |  |  | 192,584 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  |  |  |  | 193,258 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  | 192,584 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  | 223,736 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  | 19,388 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  | 18,369 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  | 17,463 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  |  |  |
Property operating expenses, real estate taxes and third party management expenses |  |  |  |  |  |  |  |  |  |  | (10,165)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  | (9,411)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  | (9,043)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  |  |  |
Net operating income |  |  |  |  |  |  |  |  |  |  | 9,223 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  | 8,958 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  | 8,420 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = stpr_CA |  |  |  |
Austin, Texas [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | 0 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |  | 36,856 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |  | 0 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | 36,856 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | 285,346 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  | 5,610 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | 31,451 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | 32,379 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |
Property operating expenses, real estate taxes and third party management expenses |  |  |  |  |  |  |  |  |  |  | (3,223)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | (13,298)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | (13,951)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |
Net operating income |  |  |  |  |  |  |  |  |  |  | 2,387 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | 18,153 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | 18,428 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |
Equity Method Investments | 105,781 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |  | 81,960 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |  | 105,781 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | 81,960 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | 64,828 us-gaap_EquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |
Equity in income (loss) of real estate ventures |  |  |  |  |  |  |  |  |  |  | (1,080)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | (564)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  | (316)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_StatementBusinessSegmentsAxis = bdn_AustinTexasMember |  |  |  |
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Construction-in-progress | 201,360 us-gaap_DevelopmentInProcess / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |  | 74,174 us-gaap_DevelopmentInProcess / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |  | 201,360 us-gaap_DevelopmentInProcess / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 74,174 us-gaap_DevelopmentInProcess / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 48,950 us-gaap_DevelopmentInProcess / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |
Land inventory | 90,603 us-gaap_LandAvailableForDevelopment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |  | 93,351 us-gaap_LandAvailableForDevelopment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |  | 90,603 us-gaap_LandAvailableForDevelopment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 93,351 us-gaap_LandAvailableForDevelopment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 102,439 us-gaap_LandAvailableForDevelopment / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  | 1,128 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 1,515 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 1,142 us-gaap_RealEstateRevenueNet / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |
Property operating expenses, real estate taxes and third party management expenses |  |  |  |  |  |  |  |  |  |  | (1,805)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | (1,314)us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 65 us-gaap_CostOfGoodsAndServicesSold / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |
Net operating income |  |  |  |  |  |  |  |  |  |  | (677)us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 201 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  | 1,207 us-gaap_GrossProfit / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |  |  |
Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | 4,603,692 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = us-gaap_OperatingSegmentsMember |  |  |  |  | 4,669,289 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = us-gaap_OperatingSegmentsMember |  |  |  |  | 4,603,692 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = us-gaap_OperatingSegmentsMember |  | 4,669,289 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = us-gaap_OperatingSegmentsMember |  | 4,726,169 us-gaap_RealEstateInvestmentPropertyAtCost / us-gaap_StatementBusinessSegmentsAxis = us-gaap_OperatingSegmentsMember |  |  |  |
Assets Held-for-sale [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate Held-for-sale | 27,436 us-gaap_RealEstateHeldforsale / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AssetsHeldForSaleMember |  |  |  |  | 0 us-gaap_RealEstateHeldforsale / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AssetsHeldForSaleMember |  |  |  |  | 27,436 us-gaap_RealEstateHeldforsale / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AssetsHeldForSaleMember |  | 0 us-gaap_RealEstateHeldforsale / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AssetsHeldForSaleMember |  | 0 us-gaap_RealEstateHeldforsale / us-gaap_StatementBusinessSegmentsAxis = us-gaap_AssetsHeldForSaleMember |  |  |  |
BRANDYWINE OPERATING PARTNERSHIP, L.P. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating properties | 4,603,692 us-gaap_RealEstateInvestmentPropertyAtCost / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  | 4,669,289 us-gaap_RealEstateInvestmentPropertyAtCost / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  | 4,603,692 us-gaap_RealEstateInvestmentPropertyAtCost / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  | 4,669,289 us-gaap_RealEstateInvestmentPropertyAtCost / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  |  |
Construction-in-progress | 201,360 us-gaap_DevelopmentInProcess / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  | 74,174 us-gaap_DevelopmentInProcess / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  | 201,360 us-gaap_DevelopmentInProcess / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  | 74,174 us-gaap_DevelopmentInProcess / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  |  |
Land inventory | 90,603 us-gaap_LandAvailableForDevelopment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  | 93,351 us-gaap_LandAvailableForDevelopment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  | 90,603 us-gaap_LandAvailableForDevelopment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  | 93,351 us-gaap_LandAvailableForDevelopment / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  |  | 596,982 us-gaap_RealEstateRevenueNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  | 562,210 us-gaap_RealEstateRevenueNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  | 535,679 us-gaap_RealEstateRevenueNet / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |
Equity Method Investments | 225,004 us-gaap_EquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  | 180,512 us-gaap_EquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  | 225,004 us-gaap_EquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  | 180,512 us-gaap_EquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |  |  |
Equity in income (loss) of real estate ventures |  |  |  |  |  |  |  |  |  |  | (790)us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  | 3,664 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  | 2,741 us-gaap_IncomeLossFromEquityMethodInvestments / dei_LegalEntityAxis = us-gaap_SubsidiariesMember |  |  |  |
Austin Joint Venture [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Rentable Space |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 590,881 bdn_NetRentableSpace / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bdn_AustinJointVentureMember |  |  |
Number of Real Estate Properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bdn_AustinJointVentureMember | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bdn_AustinJointVentureMember |  |
Real estate investments, at cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investments | 40,374 us-gaap_EquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bdn_AustinJointVentureMember |  |  |  |  |  |  |  |  |  | 40,374 us-gaap_EquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bdn_AustinJointVentureMember |  |  |  |  |  |  |  |
Equity in income (loss) of real estate ventures |  |  |  |  |  |  |  |  |  |  | $ (574)us-gaap_IncomeLossFromEquityMethodInvestments / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = bdn_AustinJointVentureMember |  |  |  |  |  |  |  |
Durham, NC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 0 us-gaap_NumberOfRealEstateProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = bdn_DurhamNCMember |  |  |  |  |  |  |  |  |  | 0 us-gaap_NumberOfRealEstateProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = bdn_DurhamNCMember |  |  |  |  |  |  |  |
Four Points Centre [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of floors of a building |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 bdn_NumberOfFloorsOfBuilding / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = bdn_FourPointsCentreMember | 3 bdn_NumberOfFloorsOfBuilding / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = bdn_FourPointsCentreMember
Net Rentable Space |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 192,396 bdn_NetRentableSpace / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = bdn_FourPointsCentreMember |
Number of Real Estate Properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = bdn_FourPointsCentreMember |
1000 Atrium Way and Libertyview [Member] [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Real Estate Properties | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis = bdn_A1000AtriumWayandLibertyviewMemberMember |  |  |  |  |  |  |  |  |  | 2 us-gaap_NumberOfRealEstateProperties / us-gaap_LongLivedAssetsHeldForSaleByAssetTypeAxis = bdn_A1000AtriumWayandLibertyviewMemberMember |  |  |  |  |  |  |  |
[1] | (a)Real estate investments related to assets held for sale above represents gross real estate assets and does not include accumulated depreciation or other assets on the balance sheets of the properties held for sale.

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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -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 210.5-03.2(a),(d)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition The current amount of expenditures for a real estate project that has not yet been completed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.10) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 + Details
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 9 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.12) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 7 + Details
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- Definition Carrying amount of land available for development. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph d -Article 7 + Details
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- Definition Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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