XML 95 R75.htm IDEA: XBRL DOCUMENT ﻿
v2.3.0.11

Share Based and Deferred Compensation (Details) (USD $) | 6 Months Ended
--- | ---
Jun. 30, 2011
Option activity |
Outstanding at January 1, 2011, shares | 3,116,611
Granted, shares | 603,241
Exercised, shares | (76,887)
Outstanding at June 30, 2011, shares | 3,642,965
Vested/Exercisable at June 30, 2011, shares | 2,331,021
Outstanding at January 1, 2011, Weighted Average Exercise Price | $ 14.56
Granted, Weighted Average Exercise Price | $ 11.89
Exercised, Weighted Average Exercise Price | $ 2.91
Outstanding at June30, 2011, Weighted Average Exercise Price | $ 14.37
Vested/Exercisable at June 30, 2011, Weighted Average Exercise Price | $ 16.75
Outstanding at January 1, 2011, Weighted Average Remaining Contractual Term | 7.81
Granted, Weighted Average Remaining Contractual Term (in years) | 9.68
Outstanding at June 30, 2011, Weighted Average Remaining Contractual Term | 7.70
Vested/Exercisable at June 30, 2011, Weighted Average Remaining Contractual Term | 7.05
Outstanding at January 1, 2011, Aggregate Intrinsic Value | $ (9,080,625)
Granted, Aggregate Intrinsic Value | (180,972)
Outstanding at June 30, 2011, Aggregate Intrinsic Value | (10,115,971)
Vested/Exercisable at June 30, 2011, Aggregate Intrinsic Value | $ (11,802,863)

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Option Activity Abstract. + Details
Name: | bdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionActivityAbstract
Namespace Prefix: | bdn
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Remaining Contractual Terms. + Details
Name: | bdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerms
Namespace Prefix: | bdn
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Options Grant In Period Weighted Average Exercise Price. + Details
Name: | bdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodWeightedAverageExercisePrice
Namespace Prefix: | bdn
Data Type: | us-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Aggregate Intrinsic Value. + Details
Name: | bdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodAggregateIntrinsicValue
Namespace Prefix: | bdn
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Share Based Payment Award Options Grants Weighted Average Remaining Contractual Terms. + Details
Name: | bdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsWeightedAverageRemainingContractualTerms
Namespace Prefix: | bdn
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Remaining Contractual Terms. + Details
Name: | bdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerms
Namespace Prefix: | bdn
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share Based Payment Award Options Vested And Exercisable Intrinsic Value. + Details
Name: | bdn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExercisableIntrinsicValue
Namespace Prefix: | bdn
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Share based compensation by share based payment award options excercises in period weighted average exercise price. + Details
Name: | bdn_ShareBasedCompensationByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
Namespace Prefix: | bdn
Data Type: | us-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance-sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c), d(2) + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Namespace Prefix: | us-gaap
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c) + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Namespace Prefix: | us-gaap
Data Type: | us-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The decrease in the number of reserved shares that could potentially be issued attributable to the exercise or conversion during the reporting period of previously issued stock options under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(e) + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriod
Namespace Prefix: | us-gaap
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The quantity of shares issuable on stock options awarded under the plan during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(d) + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
Namespace Prefix: | us-gaap
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices pertaining to options outstanding under the plan as of the balance-sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph d(1) + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance-sheet date, including vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a) Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(b) + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Namespace Prefix: | us-gaap
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a) + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix: | us-gaap
Data Type: | us-types:perShareItemType
Balance Type: | na
Period Type: | instant