XML 27 R57.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Debt Obligations (Consolidated Debt Obligations Outstanding) (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Sep. 30, 2012 | Dec. 31, 2011
Consolidated debt obligations |  |  |
Plus: premiums/(discounts), net | $ (5,400) |  |
Total mortgage indebtedness | 502,123 |  | 511,061
Total Debt Obligations | 2,506,589 |  | 2,393,995
Secured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 503,181 |  | 512,391
Plus: premiums/(discounts), net | (1,058) |  | (1,330)
Total mortgage indebtedness | 502,123 |  | 511,061
Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 2,008,808 |  | 1,888,111
Plus: premiums/(discounts), net | (4,342) |  | (5,177)
Total unsecured indebtedness | 2,004,466 |  | 1,882,934
Bank Term Loan [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 0 |  | 37,500
Effective interest rate | LIBOR + 0.80% | [1] |
Debt Instrument Maturity Dates | Feb-12 |  |
Debt instrument, basis spread on variable rate | 0.80% |  |
Former Revolving Credit Facility [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 0 |  | 275,500
Effective interest rate | LIBOR + 0.725% | [1] |
Debt Instrument Maturity Dates | Feb-12 |  |
New Revolving Credit Facility [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 0 |  | 0
Effective interest rate | LIBOR + 1.50% | [1] |
Debt Instrument Maturity Dates | Feb-16 |  |
Debt instrument, basis spread on variable rate | 1.50% |  |
Debt Instrument, Term | 4 years |  |
Option to extend Term Loan | 1 year |  |
Three-Year Term Loan - Swapped to fixed [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 150,000 |  | 0
Effective interest rate | 2.60% | [1] |
Debt Instrument Maturity Dates | Feb-15 |  |
Debt instrument, basis spread on variable rate | 1.75% |  |
Debt Instrument, Term | 3 years |  |
Option to extend Term Loan | 1 year |  |
Four Year Term Loan [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Debt instrument, basis spread on variable rate | 1.75% |  |
Debt Instrument, Term | 4 years |  |
Option to extend Term Loan | 1 year |  |
Four-Year Term Loan - Swapped to fixed [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 150,000 |  | 0
Effective interest rate | 2.88% | [1] |
Debt Instrument Maturity Dates | Feb-16 |  |
Four-Year Term Loan - Variable [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 100,000 |  | 0
Effective interest rate | LIBOR + 1.75% | [1] |
Debt Instrument Maturity Dates | Feb-16 |  |
Seven Year Term Loan - Swapped to fixed [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 200,000 |  | 0
Effective interest rate | 3.62% | [1] |
Debt Instrument Maturity Dates | Feb-19 |  |
Debt instrument, basis spread on variable rate | 1.90% |  |
Debt Instrument, Term | 7 years |  |
$300.0M 5.750% Guaranteed Notes due 2012 [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 0 |  | 151,491
Effective interest rate | 5.73% |  |
Debt Instrument Maturity Dates | Apr-12 |  |
Debt instrument stated interest rate | 5.75% |  |
$250.0M 5.400% Guaranteed Notes due 2014 [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 238,379 |  | 242,681
Effective interest rate | 5.53% |  |
Debt Instrument Maturity Dates | Nov-14 |  |
Debt instrument stated interest rate | 5.40% |  |
$250.0M 7.500% Guaranteed Notes due 2015 [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 216,819 |  | 227,329
Effective interest rate | 7.77% |  |
Debt Instrument Maturity Dates | May-15 |  |
Debt instrument stated interest rate | 7.50% |  |
$250.0M 6.000% Guaranteed Notes due 2016 [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 250,000 |  | 250,000
Effective interest rate | 5.95% |  |
Debt Instrument Maturity Dates | Apr-16 |  |
Debt instrument stated interest rate | 6.00% |  |
$300.0M 5.700% Guaranteed Notes due 2017 [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 300,000 |  | 300,000
Effective interest rate | 5.75% |  |
Debt Instrument Maturity Dates | May-17 |  |
Debt instrument stated interest rate | 5.70% |  |
$325.0M 4.950% Guaranteed Notes due 2018 [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 325,000 |  | 325,000
Effective interest rate | 5.14% |  |
Debt Instrument Maturity Dates | Apr-18 |  |
Debt instrument stated interest rate | 4.95% |  |
Indenture IA (Preferred Trust I) [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 27,062 |  | 27,062
Effective interest rate | 2.75% |  |
Debt Instrument Maturity Dates | Mar-35 |  |
Indenture IB (Preferred Trust I) [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 25,774 |  | 25,774
Effective interest rate | 3.30% |  |
Debt Instrument Maturity Dates | Apr-35 |  |
Indenture II (Preferred Trust II) [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 25,774 |  | 25,774
Effective interest rate | 3.09% |  |
Debt Instrument Maturity Dates | Jul-35 |  |
Revolving Credit Facility [Member] | Unsecured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Debt instrument, basis spread on variable rate | 0.725% |  |
Newtown Square/Berwyn Park/Libertyview [Member] | Secured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 55,289 |  | 56,538
Effective interest rate | 7.25% |  |
Debt Instrument Maturity Dates | May-13 |  |
Southpoint III [Member] | Secured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 1,317 |  | 1,887
Effective interest rate | 7.75% |  |
Debt Instrument Maturity Dates | Apr-14 |  |
Tysons Corner [Member] | Secured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 93,625 |  | 94,882
Effective interest rate | 5.36% | [2] |
Debt Instrument Maturity Dates | Aug-15 |  |
Two Logan Square [Member] | Secured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 89,524 |  | 89,800
Effective interest rate | 7.57% |  |
Debt Instrument Maturity Dates | Apr-16 |  |
Fairview Eleven Tower [Member] | Secured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 22,000 |  | 22,000
Effective interest rate | 4.25% |  |
Debt Instrument Maturity Dates | Jan-17 |  |
IRS Philadelphia Campus [Member] | Secured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | 198,592 |  | 202,905
Effective interest rate | 7.00% |  |
Debt Instrument Maturity Dates | Sep-30 |  |
Cira South Garage [Member] | Secured Debt [Member] |  |  |
Consolidated debt obligations |  |  |
Long-term Debt, Gross | $ 42,834 |  | $ 44,379
Effective interest rate | 7.12% |  |
Debt Instrument Maturity Dates | Sep-30 |  |
[1] | On February 1, 2012, the Company closed on a new $600.0 million four-year unsecured credit facility and three unsecured term loans (the "New Term Loans") totaling $600.0 million which consist of a $150.0 million three-year loan, a $250.0 million four-year loan and a $200.0 million seven-year loan. The Company used a portion of the net proceeds from the term loans to repay all balances outstanding under its former Revolving Credit Facility and its former $183.0 million Bank Term Loan which were then retired prior to their scheduled June 29, 2012 maturity.
[2] | This loan was assumed upon acquisition of the related property. The interest rate reflects the market rate at the time of acquisition.

X
- Details
Name: | bdn_ConsolidatedDebtObligationsAbstract
Namespace Prefix: | bdn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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: | instant

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

X
- Definition Debt Instrument, Term + References No definition available. + Details
Name: | bdn_DebtInstrumentTerm
Namespace Prefix: | bdn_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Option to Extend Term Loan + References No definition available. + Details
Name: | bdn_OptionToExtendTermLoan
Namespace Prefix: | bdn_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

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 The percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
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
- Definition Interest rate stated in the contractual debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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