XML 104 R81.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Noncontrolling Interests Redeemable Property Partnerships (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($)
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |
Beginning Balance | $ 104,692
Net Loss | (7)
Distributions | (2,900)
Adjustment to reflect redeemable partnership units at redemption value | 5,128
Acquisition of interest | (106,913)
Ending Balance | $ 0

X
- Definition Acquisition of interest + References No definition available. + Details
Name: | bxp_Acquisitionofinterest
Namespace Prefix: | bxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Adjustment to Reflect Redeemable Interest at Redemption Value + References No definition available. + Details
Name: | bxp_AdjustmentToReflectRedeemableInterestAtRedemptionValue
Namespace Prefix: | bxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Distributions on Redeemable Property Partnership + References No definition available. + Details
Name: | bxp_DistributionsOnRedeemablePropertyPartnership
Namespace Prefix: | bxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Net Loss for Redeemable interest in Property Partnership + References No definition available. + Details
Name: | bxp_NetLossForRedeemableInterestInPropertyPartnership
Namespace Prefix: | bxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Temporary Equity, Carrying Amount Redeemable Interest in Property Partnerships + References No definition available. + Details
Name: | bxp_TemporaryEquityCarryingAmountRedeemableInterestInPropertyPartnerships
Namespace Prefix: | bxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_MovementInMinorityInterestRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration