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Noncontrolling Interests (Tables) | 9 Months Ended
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Sep. 30, 2019
Noncontrolling Interest [Line Items] |
Distributions Declared to OP, LTIP, OPP and MYLTIP Units [Table Text Block] | The following table presents Boston Properties, Inc.’s dividends per share and Boston Properties Limited Partnership’s distributions per OP Unit and LTIP Unit paid or declared in 2019 and during the nine months ended September 30, 2018:
Record Date |  | Payment Date |  | Dividend (Per Share) |  |  | Distribution (Per Unit) |
September 30, 2019 |  | October 31, 2019 |  |  | $0.95 |  |  |  | $0.95 |
June 28, 2019 |  | July 31, 2019 |  |  | $0.95 |  |  |  | $0.95 |
March 29, 2019 |  | April 30, 2019 |  |  | $0.95 |  |  |  | $0.95 |
December 31, 2018 |  | January 30, 2019 |  |  | $0.95 |  |  |  | $0.95 |
September 28, 2018 |  | October 31, 2018 |  |  | $0.95 |  |  |  | $0.95 |
June 29, 2018 |  | July 31, 2018 |  |  | $0.80 |  |  |  | $0.80 |
March 29, 2018 |  | April 30, 2018 |  |  | $0.80 |  |  |  | $0.80 |
December 31, 2017 |  | January 30, 2018 |  |  | $0.80 |  |  |  | $0.80 |
Noncontrolling Interests [Member] |
Noncontrolling Interest [Line Items] |
Distributions Declared to OP, LTIP, OPP and MYLTIP Units [Table Text Block] | The following table presents Boston Properties Limited Partnership’s distributions on the OP Units and LTIP Units (including the 2012 OPP Units, 2013 MYLTIP Units, 2014 MYLTIP Units and 2015 MYLTIP Units and, after the February 9, 2019 measurement date, the 2016 MYLTIP Units) and its distributions on the 2016 MYLTIP Units (prior to the February 9, 2019 measurement date), 2017 MYLTIP Units, 2018 MYLTIP Units and 2019 MYLTIP Units (after the February 5, 2019 issuance date) paid in 2019:
Record Date |  | Payment Date |  | Distributions per OP Unit and LTIP Unit |  | Distributions per MYLTIP Unit
September 30, 2019 |  | October 31, 2019 |  |  | $0.95 |  |  |  | $0.095 |
June 28, 2019 |  | July 31, 2019 |  |  | $0.95 |  |  |  | $0.095 |
March 29, 2019 |  | April 30, 2019 |  |  | $0.95 |  |  |  | $0.095 |
December 31, 2018 |  | January 30, 2019 |  |  | $0.95 |  |  |  | $0.095 |
The following table presents Boston Properties Limited Partnership’s distributions on the OP Units and LTIP Units (including the 2012 OPP Units, 2013 MYLTIP Units, 2014 MYLTIP Units and, after the February 4, 2018 measurement date, the 2015 MYLTIP Units) and its distributions on the 2015 MYLTIP Units (prior to the February 4, 2018 measurement date), 2016 MYLTIP Units, 2017 MYLTIP Units and 2018 MYLTIP Units (after the February 6, 2018 issuance date) that occurred during the nine months ended September 30, 2018:
Record Date |  | Payment Date |  | Distributions per OP Unit and LTIP Unit |  | Distributions per MYLTIP Unit
September 28, 2018 |  | October 31, 2018 |  |  | $0.95 |  |  |  | $0.095 |
June 29, 2018 |  | July 31, 2018 |  |  | $0.80 |  |  |  | $0.080 |
March 29, 2018 |  | April 30, 2018 |  |  | $0.80 |  |  |  | $0.080 |
December 31, 2017 |  | January 30, 2018 |  |  | $0.80 |  |  |  | $0.080 |

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