Earnings Per Share / Common Unit (Tables)

12 Months Ended

Dec. 31, 2015

Computation Of Basic And Diluted Earnings Per Share / Unit



	For the Year Ended December 31, 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	$	572,606		153,471	$	3.73
Effect of Dilutive Securities:
Stock Based Compensation	—			373	(0.01		)
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	572,606		153,844	$	3.72

	For the Year Ended December 31, 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	$	433,111		153,089	$	2.83
Effect of Dilutive Securities:
Stock Based Compensation	—			219	—
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	433,111		153,308	$	2.83

	For the Year Ended December 31, 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.	$	618,113		152,201	$	4.06
Discontinued operations attributable to Boston Properties, Inc.	123,641			—	0.81
Allocation of undistributed earnings to participating securities	(160		)	—	—
Net income attributable to Boston Properties, Inc. common shareholders	$	741,594		152,201	$	4.87
Effect of Dilutive Securities:
Stock Based Compensation and Exchangeable Senior Notes	—			320	(0.01		)
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	741,594		152,521	$	4.86

Boston Properties Limited Partnership [Member]

Entity Information [Line Items]

Computation Of Basic And Diluted Earnings Per Share / Unit

Other potentially dilutive common units and the related impact on earnings are considered when calculating diluted earnings per common unit. Included in the number of units (the denominator) below are approximately 17,668,000, 17,364,000 and 16,925,000 redeemable common units for the years ended December 31, 2015, 2014 and 2013, respectively.



	For the Year Ended December 31, 2015
	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	$	648,748	171,139	$	3.79
Effect of Dilutive Securities:
Stock Based Compensation	—		373	(0.01		)
Diluted Earnings:
Net income attributable to Boston Properties Limited Partnership common unitholders	$	648,748	171,512	$	3.78



	For the Year Ended December 31, 2014
	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	$	499,129		170,453	$	2.93
Effect of Dilutive Securities:
Stock Based Compensation	—			219	(0.01		)
Diluted Earnings:
Net income attributable to Boston Properties Limited Partnership common unitholders	$	499,129		170,672	$	2.92

	For the Year Ended December 31, 2013
	Income (Numerator)			Units (Denominator)	Per Unit Amount
	(in thousands, except for per unit amounts)
Basic Earnings:
Income from continuing operations attributable to Boston Properties Limited Partnership	$	700,151		169,126	$	4.14
Discontinued operations attributable to Boston Properties Limited Partnership	141,365			—	0.84
Allocation of undistributed earnings to participating securities	(178		)	—	(0.01		)
Net income attributable to Boston Properties Limited Partnership common unitholders	$	841,338		169,126	$	4.97
Effect of Dilutive Securities:
Stock Based Compensation and Exchangeable Senior Notes	—			320	—
Diluted Earnings:
Net income attributable to Boston Properties Limited Partnership common unitholders	$	841,338		169,446	$	4.97