Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Computation Of Basic And Diluted Earnings Per Share

	For the three months ended June 30, 2015
	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	$	79,460	153,450	$	0.52
Effect of Dilutive Securities:
Stock Based Compensation	—		365	—
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	79,460	153,815	$	0.52
	For the three months ended June 30, 2014
	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	$	76,527	153,078	$	0.50
Effect of Dilutive Securities:
Stock Based Compensation	—		160	—
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	76,527	153,238	$	0.50

	For the six months ended June 30, 2015
	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	$	250,694		153,341	$	1.63
Allocation of undistributed earnings to participating securities	(141		)	—	—
Net income attributable to Boston Properties, Inc. common shareholders	$	250,553		153,341	$	1.63
Effect of Dilutive Securities:
Stock Based Compensation	—			504	—
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	250,553		153,845	$	1.63
	For the six months ended June 30, 2014
	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	$	130,594		153,054	$	0.85
Effect of Dilutive Securities:
Stock Based Compensation	—			149	—
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	130,594		153,203	$	0.85