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Consolidated Statement of Capital and Noncontrolling Interests - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Common Stock, Shares, Outstanding 156,726,430 156,136,000 156,726,430 156,136,000 156,712,000 156,544,849 156,074,000  
Net activity from stock option and incentive plan, value $ 18,025 $ 12,897 $ 36,946 $ 51,364        
Net activity from stock option and incentive plan, shares 3,000 3,000            
Preferred Stock Redemption Charge $ 0 $ 0 0 (6,412)        
Conversion of redeemable partnership units 11,000 59,000            
Effective portion of interest rate contracts $ 35 $ 654 7,600 4,394        
Amortization of interest rate contracts 1,677 1,676 3,353 3,352        
Contributions from noncontrolling interests in property partnerships   2,139 849 2,420        
Distributions to noncontrolling interests in property partnerships $ (14,439) $ (19,704) $ (41,079) $ (37,929)        
General Partner [Member]                
Common Stock, Shares, Outstanding 1,750,000 1,737,000 1,750,000 1,737,000 1,749,000 1,746,000 1,737,000 1,731,000
Net activity from stock option and incentive plan, shares 1,000   1,000 4,000        
Conversion of redeemable partnership units     3,000 2,000        
Limited Partner [Member]                
Common Stock, Shares, Outstanding 154,977,000 154,399,000 154,977,000 154,399,000 154,962,000 154,799,000 154,338,000 153,988,000
Net activity from stock option and incentive plan, shares 4,000 2,000 29,000 235,000        
Conversion of redeemable partnership units 11,000 59,000 149,000 176,000        
Partners' Capital (General and Limited Partners)[Member]                
Beginning Balance $ 4,716,430 $ 4,132,880 $ 4,716,430 $ 4,132,880 $ 3,914,832 $ 4,173,290 $ 4,392,624 $ 4,554,639
Contributions, value 4,418 (294) 4,885 20,195        
Allocated net income for the period 228,088 113,508 373,556 214,609        
Distributions (153,592) (153,013) (307,169) (305,966)        
Preferred Stock Redemption Charge       (6,412)        
Conversion of redeemable partnership units, value 401 2,087 5,429 6,285        
Adjustment to reflect redeemable partnership units at redemption value 722,283 (222,032) 466,439 (350,470)        
Preferred Units [Member]                
Beginning Balance               193,623
Allocated net income for the period       2,560        
Distributions       (2,560)        
Preferred Units [Member] | Boston Properties Limited Partnership                
Beginning Balance   0   0        
Preferred Stock, Redemption Amount   (193,623)   (193,623)        
Accumulated Other Comprehensive Loss [Member]                
Beginning Balance (27,077) (43,166) (27,077) (43,166) (28,485) (36,662) (45,139) (49,890)
Effective portion of interest rate contracts 31 593 6,831 3,962        
Amortization of interest rate contracts 1,377 1,380 2,754 2,762        
Noncontrolling interest - property partnerships [Member]                
Beginning Balance 1,552,706 1,725,343 1,552,706 1,725,343 1,548,455 1,556,553 1,725,600 1,726,933
Allocated net income for the period 18,546 17,164 36,095 33,631        
Amortization of interest rate contracts 144 144 288 288        
Contributions from noncontrolling interests in property partnerships   2,139 849 2,420        
Distributions to noncontrolling interests in property partnerships (14,439) (19,704) (41,079) (37,929)        
Total Capital [Member]                
Beginning Balance 6,242,059 5,815,057 6,242,059 5,815,057 5,434,802 5,693,181 6,073,085 6,425,305
Contributions, value 4,418 (294) 4,885 20,195        
Allocated net income for the period 246,634 130,672 409,651 250,800        
Distributions (153,592) (153,013) (307,169) (308,526)        
Preferred Stock, Redemption Amount   (193,623)   (193,623)        
Preferred Stock Redemption Charge       (6,412)        
Conversion of redeemable partnership units, value 401 2,087 5,429 6,285        
Adjustment to reflect redeemable partnership units at redemption value 722,283 (222,032) 466,439 (350,470)        
Effective portion of interest rate contracts 31 593 6,831 3,962        
Amortization of interest rate contracts 1,521 1,524 3,042 3,050        
Contributions from noncontrolling interests in property partnerships   2,139 849 2,420        
Distributions to noncontrolling interests in property partnerships (14,439) (19,704) (41,079) (37,929)        
Noncontrolling interest - Redeemable partnership units [Member]                
Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount 1,646,678 2,008,478 1,646,678 2,008,478 $ 2,347,834 $ 2,078,603 $ 1,780,044 $ 1,643,024
Contributions, value 13,607 13,191 32,661 31,653        
Allocated net income for the period 25,700 12,338 42,061 23,422        
Distributions (17,939) (17,253) (35,859) (34,540)        
Conversion of redeemable partnership units, value (401) (2,087) (5,429) (6,285)        
Adjustment to reflect redeemable partnership units at redemption value (722,283) 222,032 (466,439) 350,470        
Effective portion of interest rate contracts 4 61 769 432        
Amortization of interest rate contracts $ 156 $ 152 $ 311 $ 302