Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Computation Of Basic And Diluted Earnings Per Share

	For the three months ended June 30, 2013
	Income (Numerator)			Shares (Denominator)	Per Share Amount
	(in thousands, except for per share amounts)
Basic Earnings:
Income from continuing operations attributable to Boston Properties, Inc.	$	451,632		151,938	$	2.97
Discontinued operations attributable to Boston Properties, Inc.	785			—	0.01
Allocation of undistributed earnings to participating securities	(3,629		)	—	(0.03		)
Net income attributable to Boston Properties, Inc. common shareholders	$	448,788		151,938	$	2.95
Effect of Dilutive Securities:
Stock Based Compensation and Exchangeable Senior Notes	—			552	(0.01		)
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	448,788		152,490	$	2.94
	For the three months ended June 30, 2012
	Income (Numerator)			Shares (Denominator)	Per Share Amount
	(in thousands, except for per share amounts)
Basic Earnings:
Income from continuing operations attributable to Boston Properties, Inc.	$	85,539		150,312	$	0.57
Discontinued operations attributable to Boston Properties, Inc.	33,020			—	0.22
Net income attributable to Boston Properties, Inc. common shareholders	$	118,559		150,312	$	0.79
Effect of Dilutive Securities:
Stock Based Compensation and Exchangeable Senior Notes	—			382	(0.01		)
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	118,559		150,694	$	0.78
	For the six months ended June 30, 2013
	Income (Numerator)			Shares (Denominator)	Per Share Amount
	(in thousands, except for per share amounts)
Basic Earnings:
Income from continuing operations attributable to Boston Properties, Inc.	$	484,118		151,793	$	3.19
Discontinued operations attributable to Boston Properties, Inc.	15,975			—	0.10
Allocation of undistributed earnings to participating securities	(3,179		)	—	(0.02		)
Net income attributable to Boston Properties, Inc. common shareholders	$	496,914		151,793	$	3.27

Effect of Dilutive Securities:
Stock Based Compensation and Exchangeable Senior Notes	—		429	(0.01		)
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	496,914	152,222	$	3.26
	For the six months ended June 30,2012
	Income (Numerator)		Shares (Denominator)	Per Share Amount
	(in thousands, except for per share amounts)
Basic Earnings:
Income from continuing operations attributable to Boston Properties, Inc.	$	133,465	149,328	$	0.89
Discontinued operations attributable to Boston Properties, Inc.	33,506		—	0.23
Net income attributable to Boston Properties, Inc. common shareholders	$	166,971	149,328	$	1.12
Effect of Dilutive Securities:
Stock Based Compensation and Exchangeable Senior Notes	—		392	—
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	166,971	149,720	$	1.12