XML 74 R59.htm IDEA: XBRL DOCUMENT v3.19.2
Earnings Per Share / Common Unit (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Basic Earnings:        
Net income attributable to the Company's common shareholders / unitholders $ 164,318 $ 128,681 $ 262,431 $ 304,682
Net income attributable to the Company's common shareholders / unitholders (in shares / units) 154,555,000 154,415,000 154,540,000 154,400,000
Net income (in dollars per share / unit) $ 1.06 $ 0.83 $ 1.70 $ 1.97
Allocation of undistributed earnings to participating securities $ (48) $ (16)   $ (142)
Allocation of undistributed earnings to participating securities (in shares) 0 0   0
Allocation of undistributed earnings to participating securities (in dollars per shares / units) $ 0 $ 0   $ 0
Net income attributable to the Company's common shareholders / unitholders $ 164,270 $ 128,665   $ 304,540
Net income attributable to the Company's common shareholders / unitholders (in shares / units) 154,555,000 154,415,000   154,400,000
Net income attributable to the Company's common shareholders / unitholders (in dollars per share / unit) $ 1.06 $ 0.83   $ 1.97
Effect of Dilutive Securities:        
Stock Based Compensation, Income (Numerator) $ 0 $ 0 $ 0 $ 0
Stock Based Compensation, Income (in shares / units) 319,000 156,000 319,000 238,000
Stock Based Compensation, Income (in dollars per share / unit) $ 0 $ 0 $ (0.01) $ 0
Diluted Earnings:        
Net income attributable to the Company's common shareholders / unitholders (Numerator) $ 164,270 $ 128,665 $ 262,431 $ 304,540
Net income attributable to to the Company's shareholders / unitholder (number of shares) 154,874,000 154,571,000 154,859,000 154,638,000
Diluted Earnings: Net income, Per Share Amount (in dollars per share / unit) $ 1.06 $ 0.83 $ 1.69 $ 1.97
Boston Properties Limited Partnership        
Entity Information [Line Items]        
Redeemable Common Units 17,647,000 17,501,000 17,627,000 17,492,000
Basic Earnings:        
Net income attributable to the Company's common shareholders / unitholders $ 185,715 $ 145,961 $ 299,097 $ 346,868
Net income attributable to the Company's common shareholders / unitholders (in shares / units) 172,202,000 171,916,000 172,167,000 171,892,000
Net income (in dollars per share / unit) $ 1.08 $ 0.85 $ 1.74 $ 2.02
Allocation of undistributed earnings to participating securities $ (54) $ (18)   $ (158)
Allocation of undistributed earnings to participating securities (in shares) 0 0   0
Allocation of undistributed earnings to participating securities (in dollars per shares / units) $ 0 $ 0   $ 0
Net income attributable to the Company's common shareholders / unitholders $ 185,661 $ 145,943   $ 346,710
Net income attributable to the Company's common shareholders / unitholders (in shares / units) 172,202,000 171,916,000   171,892,000
Net income attributable to the Company's common shareholders / unitholders (in dollars per share / unit) $ 1.08 $ 0.85   $ 2.02
Effect of Dilutive Securities:        
Stock Based Compensation, Income (Numerator) $ 0 $ 0 $ 0 $ 0
Stock Based Compensation, Income (in shares / units) 319,000 156,000 319,000 238,000
Stock Based Compensation, Income (in dollars per share / unit) $ 0 $ 0 $ (0.01) $ (0.01)
Diluted Earnings:        
Net income attributable to the Company's common shareholders / unitholders (Numerator) $ 185,661 $ 145,943 $ 299,097 $ 346,710
Net income attributable to to the Company's shareholders / unitholder (number of shares) 172,521,000 172,072,000 172,486,000 172,130,000
Diluted Earnings: Net income, Per Share Amount (in dollars per share / unit) $ 1.08 $ 0.85 $ 1.73 $ 2.01