XML 44 R27.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Stockholders' Equity / Partners' Capital Tables (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2017
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 2017:
Record Date |  | Payment Date |  | Dividend (Per Share) |  |  | Distribution (Per Unit) |
September 29, 2017 |  | October 31, 2017 |  |  | $0.75 |  |  |  | $0.75 |
June 30, 2017 |  | July 31, 2017 |  |  | $0.75 |  |  |  | $0.75 |
March 31, 2017 |  | April 28, 2017 |  |  | $0.75 |  |  |  | $0.75 |
December 31, 2016 |  | January 30, 2017 |  |  | $0.75 |  |  |  | $0.75 |
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 2017:
Record Date |  | Payment Date |  | Dividend (Per Share) |
November 3, 2017 |  | November 15, 2017 |  |  | $32.8125 |
August 4, 2017 |  | August 15, 2017 |  |  | $32.8125 |
May 5, 2017 |  | May 15, 2017 |  |  | $32.8125 |
February 3, 2017 |  | February 15, 2017 |  |  | $32.8125 |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ClassOfStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information related to dividends declared, including paid and unpaid dividends. + References No definition available. + Details
Name: | us-gaap_DividendsDeclaredTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=bxp_SeriesBCumulativeRedeemablePreferredStockUnitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |