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Noncontrolling Interests Common units distributions (Details) - $ / shares
Apr. 29, 2016
Jan. 28, 2016
Jun. 16, 2016
Dividends Payable [Line Items]      
Distributions Declared To OP And LTIP Units Per Unit     $ 0.65
Distributions Declared To MYLTIP Units Per Unit (in dollars per unit)     $ 0.065
special dividend [Member]      
Dividends Payable [Line Items]      
Distributions made to OP and LTIP units per unit (in dollars per unit)   $ 1.25  
Boston Properties Limited Partnership      
Dividends Payable [Line Items]      
Distributions made to OP and LTIP units per unit (in dollars per unit) $ 0.65 1.90 [1]  
Distribution paid to outperformance awards, MYLTIP Units (in dollars per unit) $ 0.065 $ 0.065  
[1] Includes a special distribution of $1.25 per unit.