XML 67 R53.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Segment Information Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2022
Parking and Other [Member] |  |
Segment Reporting Information [Line Items] |  |
Increase (decrease) in parking and other revenue primarily related to COVID-19 | $ 4,600 | $ 21,500

X
- Definition Increase (decrease) in parking and other revenue primarily related to COVID-19 + References No definition available. + Details
Name: | bxp_IncreaseDecreaseInParkingAndOtherRevenuePrimarilyRelatedToCOVID19
Namespace Prefix: | bxp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ProductOrServiceAxis=bxp_ParkingandOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |