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Stockholders' Equity / Partners' Capital Tables (Tables) | 3 Months Ended
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Mar. 31, 2019
Class of Stock [Line Items] |
Dividends Declared [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 in 2019 and occurred during the first quarter of 2018:
Record Date |  | Payment Date |  | Dividend (Per Share) |  |  | Distribution (Per Unit) |
March 29, 2019 |  | April 30, 2019 |  |  | $0.95 |  |  |  | $0.95 |
December 31, 2018 |  | January 30, 2019 |  |  | $0.95 |  |  |  | $0.95 |
March 29, 2018 |  | April 30, 2018 |  |  | $0.80 |  |  |  | $0.80 |
December 31, 2017 |  | January 30, 2018 |  |  | $0.80 |  |  |  | $0.80 |
Series B Cumulative Redeemable Preferred Stock [Member] |
Class of Stock [Line Items] |
Dividends Declared [Table Text Block] | The following table presents Boston Properties Inc.’s dividends per share on its outstanding Series B Preferred Stock paid during 2019 and occurred during the first quarter of 2018:
Record Date |  | Payment Date |  | Dividend (Per Share) |
May 3, 2019 |  | May 15, 2019 |  |  | $32.8125 |
February 4, 2019 |  | February 15, 2019 |  |  | $32.8125 |
May 4, 2018 |  | May 15, 2018 |  |  | $32.8125 |
February 2, 2018 |  | February 15, 2018 |  |  | $32.8125 |

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