Earnings Per Share / Common Unit (Tables)

3 Months Ended

Mar. 31, 2016

Entity Information [Line Items]

Computation Of Basic And Diluted Earnings Per Share

	For the 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
	For the three months ended March 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	$	171,182		153,230	$	1.12
Allocation of undistributed earnings to participating securities	(188		)	—	—
Net income attributable to Boston Properties, Inc. common shareholders	$	170,994		153,230	$	1.12
Effect of Dilutive Securities:
Stock Based Compensation	—			643	(0.01		)
Diluted Earnings:
Net income attributable to Boston Properties, Inc. common shareholders	$	170,994		153,873	$	1.11

Boston Properties Limited Partnership

Entity Information [Line Items]

Computation Of Basic And Diluted Earnings Per Share

	For the 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

	For the three months ended March 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	$	193,369		171,084	$	1.13
Allocation of undistributed earnings to participating securities	(210		)	—	—
Net income attributable to Boston Properties Limited Partnership common unitholders	$	193,159		171,084	$	1.13
Effect of Dilutive Securities:
Stock Based Compensation	—			643	(0.01		)
Diluted Earnings:
Net income attributable to Boston Properties Limited Partnership common unitholders	$	193,159		171,727	$	1.12