XML 17 R54.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Debt Obligations Debt Obligations (Consolidated Debt Obligations Outstanding) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Dec. 31, 2012
Debt Instrument [Line Items] |  |
Net unamortized premiums/(discounts) | $ (6,198) |
Total mortgage indebtedness | 440,300 | 442,974
Total Debt Obligations | 2,393,932 | 2,465,330
Secured Debt [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 441,177 | 443,942
Net unamortized premiums/(discounts) | (877) | (968)
Total mortgage indebtedness | 440,300 | 442,974
Unsecured Debt [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 1,958,953 | 2,027,953
Net unamortized premiums/(discounts) | (5,321) | (5,597)
Total unsecured indebtedness | 1,953,632 | 2,022,356
Unsecured Debt [Member] | Credit Facility |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 0 | 69,000
Debt Instrument Interest Rates Effective Percentage | LIBOR + 1.50% |
Debt Instrument Maturity Dates | Feb-16 |
Unsecured Debt [Member] | Three Year Term Loan [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 150,000 | 150,000
Debt Instrument, Interest Rate, Effective Percentage | 2.60% |
Debt Instrument Maturity Dates | Feb-15 |
Unsecured Debt [Member] | Four-Year Term Loan - Variable [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 100,000 | 100,000
Debt Instrument Interest Rates Effective Percentage | LIBOR + 1.75% |
Debt Instrument Maturity Dates | Feb-16 |
Unsecured Debt [Member] | Seven Year Term Loan [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 200,000 | 200,000
Debt Instrument, Interest Rate, Effective Percentage | 3.62% |
Debt Instrument Maturity Dates | Feb-19 |
Unsecured Debt [Member] | $250.0M 5.400% Guaranteed Notes due 2014 |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 238,379 | 238,379
Debt Instrument, Interest Rate, Effective Percentage | 5.53% |
Debt Instrument Maturity Dates | Nov-14 |
Unsecured Debt [Member] | $250.0M 7.500% Guaranteed Notes due 2015 |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 166,535 | 166,535
Debt Instrument, Interest Rate, Effective Percentage | 7.76% |
Debt Instrument Maturity Dates | May-15 |
Unsecured Debt [Member] | $250.0M 6.000% Guaranteed Notes due 2016 |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 150,429 | 150,429
Debt Instrument, Interest Rate, Effective Percentage | 5.95% |
Debt Instrument Maturity Dates | Apr-16 |
Unsecured Debt [Member] | $300.0M 5.700% Guaranteed Notes due 2017 |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 300,000 | 300,000
Debt Instrument, Interest Rate, Effective Percentage | 5.68% |
Debt Instrument Maturity Dates | May-17 |
Unsecured Debt [Member] | $325.0M 4.950% Guaranteed Notes due 2018 |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 325,000 | 325,000
Debt Instrument, Interest Rate, Effective Percentage | 5.13% |
Debt Instrument Maturity Dates | Apr-18 |
Unsecured Debt [Member] | $250.0M 3.950% Guaranteed Notes due 2023 |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 250,000 | 250,000
Debt Instrument, Interest Rate, Effective Percentage | 4.02% |
Debt Instrument Maturity Dates | Feb-23 |
Unsecured Debt [Member] | Indenture IA (Preferred Trust I) [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 27,062 | 27,062
Debt Instrument, Interest Rate, Effective Percentage | 2.75% |
Debt Instrument Maturity Dates | Mar-35 |
Unsecured Debt [Member] | Indenture IB (Preferred Trust I) [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 25,774 | 25,774
Debt Instrument, Interest Rate, Effective Percentage | 3.30% |
Debt Instrument Maturity Dates | Apr-35 |
Unsecured Debt [Member] | Indenture II (Preferred Trust II) [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 25,774 | 25,774
Debt Instrument, Interest Rate, Effective Percentage | 3.09% |
Debt Instrument Maturity Dates | Jul-35 |
Tysons Corner [Member] | Secured Debt [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 92,732 | 93,188
Debt Instrument, Interest Rate, Effective Percentage | 5.36% |
Debt Instrument Maturity Dates | Aug-15 |
Two Logan Square [Member] | Secured Debt [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 89,133 | 89,340
Debt Instrument, Interest Rate, Effective Percentage | 7.57% |
Debt Instrument Maturity Dates | Apr-16 |
Fairview Eleven Tower [Member] | Secured Debt [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 21,939 | 22,000
Debt Instrument, Interest Rate, Effective Percentage | 4.25% |
Debt Instrument Maturity Dates | Jan-17 |
IRS Philadelphia Campus [Member] | Secured Debt [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | 195,608 | 197,111
Debt Instrument, Interest Rate, Effective Percentage | 7.00% |
Debt Instrument Maturity Dates | Sep-30 |
Cira South Garage [Member] | Secured Debt [Member] |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | $ 41,765 | $ 42,303
Debt Instrument, Interest Rate, Effective Percentage | 7.12% |
Debt Instrument Maturity Dates | Sep-30 |

X
- Definition Debt Instrument, Interest Rates Effective Percentage. + References No definition available. + Details
Name: | bdn_DebtInstrumentInterestRatesEffectivePercentage
Namespace Prefix: | bdn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument Maturity Dates + References No definition available. + Details
Name: | bdn_DebtInstrumentMaturityDates
Namespace Prefix: | bdn_
Data Type: | us-types:dateStringItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total unsecured indebtedness. + References No definition available. + Details
Name: | bdn_UnsecuredIndebtedness
Namespace Prefix: | bdn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond 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 03 -Paragraph 16 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number APB14-1 -Paragraph 31 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 16 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28567-108399 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 21 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
Name: | us-gaap_SecuredDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant