Segment Information (Tables)

9 Months Ended

Sep. 30, 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 three months ended September 30, 2015:

	Boston			New York			San Francisco			Washington, DC			Total
Rental Revenue:
Class A Office	$	173,412		$	253,612		$	71,720		$	94,086		$	592,830
Office/Technical	5,866			—			5,595			2,951			14,412
Residential	1,275			—			—			2,836			4,111
Hotel	12,619			—			—			—			12,619
Total	193,172			253,612			77,315			99,873			623,972
% of Grand Totals	30.96		%	40.64		%	12.39		%	16.01		%	100.00		%
Rental Expenses:
Class A Office	70,178			88,496			24,864			30,943			214,481
Office/Technical	1,720			—			1,019			1,042			3,781
Residential	485			—			—			1,049			1,534
Hotel	8,125			—			—			—			8,125
Total	80,508			88,496			25,883			33,034			227,921
% of Grand Totals	35.32		%	38.83		%	11.36		%	14.49		%	100.00		%
Net operating income	$	112,664		$	165,116		$	51,432		$	66,839		$	396,051
% of Grand Totals	28.45		%	41.69		%	12.98		%	16.88		%	100.00		%

For the three months ended September 30, 2014:

	Boston			New York			San Francisco			Washington, DC			Total
Rental Revenue:
Class A Office	$	176,788		$	243,033		$	61,691		$	96,219		$	577,731
Office/Technical	6,056			—			5,892			3,713			15,661
Residential	1,137			—			—			5,881			7,018
Hotel	11,918			—			—			—			11,918
Total	195,899			243,033			67,583			105,813			612,328
% of Grand Totals	31.99		%	39.69		%	11.04		%	17.28		%	100.00		%
Rental Expenses:
Class A Office	69,026			82,335			22,484			32,898			206,743
Office/Technical	1,901			—			1,363			1,009			4,273
Residential	509			—			—			3,654			4,163
Hotel	7,585			—			—			—			7,585
Total	79,021			82,335			23,847			37,561			222,764
% of Grand Totals	35.47		%	36.96		%	10.71		%	16.86		%	100.00		%
Net operating income	$	116,878		$	160,698		$	43,736		$	68,252		$	389,564
% of Grand Totals	30.00		%	41.25		%	11.23		%	17.52		%	100.00		%

For the nine months ended September 30, 2015:

	Boston			New York			San Francisco			Washington, DC			Total
Rental Revenue:
Class A Office	$	518,213		$	753,142		$	206,753		$	278,706		$	1,756,814
Office/Technical	18,028			—			16,808			8,946			43,782
Residential	3,584			—			—			11,192			14,776
Hotel	35,107			—			—			—			35,107
Total	574,932			753,142			223,561			298,844			1,850,479
% of Grand Totals	31.07		%	40.70		%	12.08		%	16.15		%	100.00		%
Rental Expenses:
Class A Office	212,517			259,218			70,189			95,403			637,327
Office/Technical	5,485			—			2,930			3,257			11,672
Residential	1,505			—			—			5,106			6,611
Hotel	24,196			—			—			—			24,196
Total	243,703			259,218			73,119			103,766			679,806
% of Grand Totals	35.85		%	38.13		%	10.76		%	15.26		%	100.00		%
Net operating income	$	331,229		$	493,924		$	150,442		$	195,078		$	1,170,673
% of Grand Totals	28.29		%	42.19		%	12.85		%	16.67		%	100.00		%

For the nine months ended September 30, 2014:

	Boston			New York			San Francisco			Washington, DC			Total
Rental Revenue:
Class A Office	$	520,857		$	684,240		$	173,749		$	287,489		$	1,666,335
Office/Technical	17,788			—			18,451			11,044			47,283
Residential	3,389			—			—			15,609			18,998
Hotel	32,478			—			—			—			32,478
Total	574,512			684,240			192,200			314,142			1,765,094
% of Grand Totals	32.55		%	38.76		%	10.89		%	17.80		%	100.00		%
Rental Expenses:
Class A Office	206,242			231,668			63,078			98,818			599,806
Office/Technical	5,326			—			3,885			3,335			12,546
Residential	1,501			—			—			10,360			11,861
Hotel	21,697			—			—			—			21,697
Total	234,766			231,668			66,963			112,513			645,910
% of Grand Totals	36.35		%	35.86		%	10.37		%	17.42		%	100.00		%
Net operating income	$	339,746		$	452,572		$	125,237		$	201,629		$	1,119,184
% of Grand Totals	30.36		%	40.43		%	11.19		%	18.02		%	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:

	Three months ended September 30,				Nine months ended September 30,
	2015		2014		2015		2014
	(in thousands)
Net Operating Income	$	396,051	$	389,564	$	1,170,673	$	1,119,184
Add:
Development and management services income	5,912		6,475		16,102		18,197
Income from unconsolidated joint ventures	2,647		4,419		20,559		10,069
Interest and other income	3,637		3,421		6,337		6,841
Gains on sales of real estate	199,479		41,937		294,563		41,937
Less:
General and administrative expense	20,944		22,589		72,019		75,765
Transaction costs	254		1,402		789		2,500
Depreciation and amortization expense	153,015		157,245		475,082		466,143
Losses (gains) from investments in securities	1,515		297		1,146		(651		)
Interest expense	108,727		113,308		326,018		337,839
Noncontrolling interests in property partnerships	115,240		5,566		139,712		17,473
Noncontrolling interest—redeemable preferred units of the Operating Partnership	—		75		6		1,014
Noncontrolling interest—common units of the Operating Partnership	21,302		14,963		50,906		29,819
Preferred dividends	2,647		2,647		7,854		7,854
Net income attributable to Boston Properties, Inc. common shareholders	$	184,082	$	127,724	$	434,702	$	258,472