XML 58 R44.htm IDEA: XBRL DOCUMENT v3.23.1
Noncontrolling Interests (Narrative) (Details) - Boston Properties Limited Partnership
Mar. 31, 2023
shares
OP Units [Member]  
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]  
Noncontrolling Interest, Outstanding 16,527,638
LTIP Units [Member]  
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]  
Noncontrolling Interest, Outstanding 2,131,785
2012 OPP and 2013-2020 MYLTIP [Member]  
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]  
Noncontrolling Interest, Outstanding 514,854
MYLTIP 2021  
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]  
Noncontrolling Interest, Outstanding 350,989
MYLTIP 2022  
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]  
Noncontrolling Interest, Outstanding 253,453
MYLTIP 2023  
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]  
Noncontrolling Interest, Outstanding 322,053