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Earnings Per Share / Common Unit (Tables) | 3 Months Ended
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Mar. 31, 2017
Entity Information [Line Items] |
Computation Of Basic And Diluted Earnings Per Share |
| Three Months Ended March 31, 2017
| Income (Numerator) |  | Shares (Denominator) |  | Per Share Amount
| (in thousands, except for per share amounts)
Basic Earnings: |  |  |  |  |
Net income attributable to Boston Properties, Inc. common shareholders | $ | 97,083 |  |  | 153,860 |  |  | $ | 0.63 |
Effect of Dilutive Securities: |  |  |  |  |
Stock Based Compensation | — |  |  | 354 |  |  | — |
Diluted Earnings: |  |  |  |  |
Net income attributable to Boston Properties, Inc. common shareholders | $ | 97,083 |  |  | 154,214 |  |  | $ | 0.63 |
| Three Months Ended March 31, 2016
| Income (Numerator) |  | Shares (Denominator) |  | Per Share Amount
| (in thousands, except for per share amounts)
Basic Earnings: |  |  |  |  |
Net income attributable to Boston Properties, Inc. common shareholders | $ | 181,747 |  |  | 153,626 |  |  | $ | 1.18 |
Allocation of undistributed earnings to participating securities | (247 | ) |  | — |  |  | — |
Net income attributable to Boston Properties, Inc. common shareholders | $ | 181,500 |  |  | 153,626 |  |  | $ | 1.18 |
Effect of Dilutive Securities: |  |  |  |  |
Stock Based Compensation | — |  |  | 291 |  |  | — |
Diluted Earnings: |  |  |  |  |
Net income attributable to Boston Properties, Inc. common shareholders | $ | 181,500 |  |  | 153,917 |  |  | $ | 1.18 |
Boston Properties Limited Partnership |
Entity Information [Line Items] |
Computation Of Basic And Diluted Earnings Per Share |
| Three Months Ended March 31, 2017
| Income (Numerator) |  | Units (Denominator) |  | Per Unit Amount
| (in thousands, except for per unit amounts)
Basic Earnings: |  |  |  |  |
Net income attributable to Boston Properties Limited Partnership common unitholders | $ | 110,662 |  |  | 171,581 |  |  | $ | 0.64 |
Effect of Dilutive Securities: |  |  |  |  |
Stock Based Compensation | — |  |  | 354 |  |  | — |
Diluted Earnings: |  |  |  |  |
Net income attributable to Boston Properties Limited Partnership common unitholders | $ | 110,662 |  |  | 171,935 |  |  | $ | 0.64 |
| Three Months Ended March 31, 2016
| Income (Numerator) |  | Units (Denominator) |  | Per Unit Amount
| (in thousands, except for per unit amounts)
Basic Earnings: |  |  |  |  |
Net income attributable to Boston Properties Limited Partnership common unitholders | $ | 207,296 |  |  | 171,309 |  |  | $ | 1.21 |
Allocation of undistributed earnings to participating securities | (275 | ) |  | — |  |  | — |
Net income attributable to Boston Properties Limited Partnership common unitholders | $ | 207,021 |  |  | 171,309 |  |  | $ | 1.21 |
Effect of Dilutive Securities: |  |  |  |  |
Stock Based Compensation | — |  |  | 291 |  |  | — |
Diluted Earnings: |  |  |  |  |
Net income attributable to Boston Properties Limited Partnership common unitholders | $ | 207,021 |  |  | 171,600 |  |  | $ | 1.21 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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