Segment Information (Tables)

12 Months Ended

Dec. 31, 2015

Segment Reporting [Abstract]

Schedule Of Segment Information By Geographic Area And Property Type

Information by geographic area and property type (dollars in thousands):

For the year ended December 31, 2015:

	Boston			New York			San Francisco			Washington, DC			Total
Rental Revenue:
Class A Office	$	692,419		$	1,000,030		$	280,005		$	372,721		$	2,345,175
Office/Technical	23,827			—			22,429			11,907			58,163
Residential	4,801			—			—			14,082			18,883
Hotel	46,046			—			—			—			46,046
Total	767,093			1,000,030			302,434			398,710			2,468,267
% of Grand Totals	31.08		%	40.52		%	12.25		%	16.15		%	100.00		%
Rental Expenses:
Class A Office	280,307			346,897			94,268			127,291			848,763
Office/Technical	7,034			—			3,938			4,290			15,262
Residential	2,006			—			—			6,221			8,227
Hotel	32,084			—			—			—			32,084
Total	321,431			346,897			98,206			137,802			904,336
% of Grand Totals	35.54		%	38.36		%	10.86		%	15.24		%	100.00		%
Net operating income	$	445,662		$	653,133		$	204,228		$	260,908		$	1,563,931
% of Grand Totals	28.50		%	41.76		%	13.06		%	16.68		%	100.00		%

For the year ended December 31, 2014:

	Boston			New York			San Francisco			Washington, DC			Total
Rental Revenue:
Class A Office	$	692,116		$	928,692		$	237,381		$	381,930		$	2,240,119
Office/Technical	23,801			—			23,840			14,344			61,985
Residential	4,528			—			—			21,665			26,193
Hotel	43,385			—			—			—			43,385
Total	763,830			928,692			261,221			417,939			2,371,682
% of Grand Totals	32.21		%	39.16		%	11.01		%	17.62		%	100.00		%
Rental Expenses:
Class A Office	270,947			315,330			85,178			131,447			802,902
Office/Technical	7,173			—			4,955			4,338			16,466
Residential	1,957			—			—			13,965			15,922
Hotel	29,236			—			—			—			29,236
Total	309,313			315,330			90,133			149,750			864,526
% of Grand Totals	35.78		%	36.47		%	10.43		%	17.32		%	100.00		%
Net operating income	$	454,517		$	613,362		$	171,088		$	268,189		$	1,507,156
% of Grand Totals	30.16		%	40.70		%	11.35		%	17.79		%	100.00		%

For the year ended December 31, 2013:

	Boston			New York			San Francisco			Washington, DC			Total
Rental Revenue:
Class A Office	$	665,991		$	725,566		$	214,755		$	381,359		$	1,987,671
Office/Technical	22,617			—			17,259			15,649			55,525
Residential	4,395			—			—			17,923			22,318
Hotel	40,330			—			—			—			40,330
Total	733,333			725,566			232,014			414,931			2,105,844
% of Grand Totals	34.82		%	34.46		%	11.02		%	19.70		%	100.00		%
Rental Expenses:
Class A Office	259,997			251,640			77,905			126,507			716,049
Office/Technical	6,879			—			3,708			4,190			14,777
Residential	1,823			—			—			10,307			12,130
Hotel	28,447			—			—			—			28,447
Total	297,146			251,640			81,613			141,004			771,403
% of Grand Totals	38.52		%	32.62		%	10.58		%	18.28		%	100.00		%
Net operating income	$	436,187		$	473,926		$	150,401		$	273,927		$	1,334,441
% of Grand Totals	32.69		%	35.51		%	11.27		%	20.53		%	100.00		%

Schedule Of Reconciliation Of Net Operating Income To Net Income

The following is a reconciliation of Net Operating Income to net income attributable to Boston Properties, Inc. common shareholders (in thousands):

	Year ended December 31,
		2015			2014			2013
Net Operating Income		$	1,563,931		$	1,507,156		$	1,334,441
Add:
Development and management services income		22,554			25,316			29,695
Income from unconsolidated joint ventures		22,770			12,769			75,074
Gains on consolidation of joint ventures		—			—			385,991
Interest and other income		6,777			8,765			8,310
Gains (losses) from investments in securities		(653		)	1,038			2,911
Gains (losses) from early extinguishments of debt		(22,040		)	(10,633		)	122
Income from discontinued operations		—			—			8,022
Gains on sales of real estate from discontinued operations		—			—			112,829
Gain on forgiveness of debt from discontinued operations		—			—			20,182
Gains on sales of real estate		375,895			168,039			—
Less:
General and administrative expense		96,319			98,937			115,329
Transaction costs		1,259			3,140			1,744
Depreciation and amortization expense		639,542			628,573			560,637
Interest expense		432,196			455,743			446,880
Impairment loss		—			—			8,306
Impairment loss from discontinued operations		—			—			3,241
Noncontrolling interest in property partnerships		149,855			30,561			1,347
Noncontrolling interest—redeemable preferred units of the Operating Partnership		6			1,023			6,046
Noncontrolling interest—common units of the Operating Partnership		66,951			50,862			70,085
Noncontrolling interest in discontinued operations—common units of the Operating Partnership		—			—			14,151
Preferred dividends		10,500			10,500			8,057
Net income attributable to Boston Properties, Inc. common shareholders		$	572,606		$	433,111		$	741,754

Boston Properties Limited Partnership

The following is a reconciliation of Net Operating Income to net income attributable to Boston Properties Limited Partnership common unitholders (in thousands):

	Year ended December 31,
		2015			2014			2013
Net Operating Income		$	1,563,931		$	1,507,156		$	1,334,441
Add:
Development and management services income		22,554			25,316			29,695
Income from unconsolidated joint ventures		22,770			12,769			75,074
Gains on consolidation of joint ventures		—			—			385,991
Interest and other income		6,777			8,765			8,310
Gains (losses) from investments in securities		(653		)	1,038			2,911
Gains (losses) from early extinguishments of debt		(22,040		)	(10,633		)	122
Income from discontinued operations		—			—			8,022
Gains on sales of real estate from discontinued operations		—			—			115,459
Gain on forgiveness of debt from discontinued operations		—			—			20,736
Gains on sales of real estate		377,093			174,686			—
Less:
General and administrative expense		96,319			98,937			115,329
Transaction costs		1,259			3,140			1,744
Depreciation and amortization expense		631,549			620,064			552,589
Interest expense		432,196			455,743			446,880
Impairment loss		—			—			4,401
Impairment loss from discontinued operations		—			—			2,852
Noncontrolling interest in property partnerships		149,855			30,561			1,347
Noncontrolling interest—redeemable preferred units		6			1,023			6,046
Preferred distributions		10,500			10,500			8,057
Net income attributable to Boston Properties Limited Partnership common unitholders		$	648,748		$	499,129		$	841,516