Segment Information (Tables)

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

For the three months ended March 31, 2013:



	Boston			New York			Princeton			San Francisco			Washington, DC			Total
Rental Revenue:
Class A Office	$	161,503		$	122,096		$	16,427		$	52,671		$	97,865		$	450,562
Office/Technical	5,653			—			—			151			4,043			9,847
Residential	1,067			—			—			—			4,511			5,578
Hotel	8,291			—			—			—			—			8,291
Total	176,514			122,096			16,427			52,822			106,419			474,278
% of Grand Totals	37.22		%	25.74		%	3.46		%	11.14		%	22.44		%	100.0		%
Rental Expenses:
Class A Office	65,732			41,887			7,647			19,872			31,923			167,061
Office/Technical	1,787			—			—			35			1,004			2,826
Residential	443			—			—			—			2,290			2,733
Hotel	7,044			—			—			—			—			7,044
Total	75,006			41,887			7,647			19,907			35,217			179,664
% of Grand Totals	41.75		%	23.31		%	4.26		%	11.08		%	19.60		%	100.0		%
Net operating income	$	101,508		$	80,209		$	8,780		$	32,915		$	71,202		$	294,614
% of Grand Totals	34.45		%	27.23		%	2.98		%	11.17		%	24.17		%	100.0		%

For the three months ended March 31, 2012:



	Boston			New York			Princeton			San Francisco			Washington, DC			Total
Rental Revenue:
Class A Office	$	140,217		$	117,589		$	14,850		$	50,664		$	90,398		$	413,718
Office/Technical	6,389			—			—			52			4,092			10,533
Residential	883			—			—			—			3,598			4,481
Hotel	6,816			—			—			—			—			6,816
Total	154,305			117,589			14,850			50,716			98,088			435,548
% of Grand Totals	35.43		%	27.00		%	3.41		%	11.64		%	22.52		%	100.0		%
Rental Expenses:
Class A Office	57,636			38,429			7,358			19,486			27,442			150,351
Office/Technical	1,705			—			—			24			1,047			2,776
Residential	390			—			—			—			2,325			2,715
Hotel	6,099			—			—			—			—			6,099
Total	65,830			38,429			7,358			19,510			30,814			161,941
% of Grand Totals	40.65		%	23.73		%	4.54		%	12.05		%	19.03		%	100.0		%
Net operating income	$	88,475		$	79,160		$	7,492		$	31,206		$	67,274		$	273,607
% of Grand Totals	32.34		%	28.93		%	2.74		%	11.40		%	24.59		%	100.0		%

The following is a reconciliation of Net Operating Income to net income attributable to Boston Properties, Inc.:



	Three months ended March 31,
	2013		2012
Net Operating Income	$	294,614	$	273,607
Add:
Development and management services income	8,736		8,145
Income from unconsolidated joint ventures	8,721		11,721
Interest and other income	1,471		1,646
Gains from investments in securities	735		801
Gains from early extinguishments of debt	—		767
Income from discontinued operations	61		570
Gain on forgiveness of debt from discontinued operations	20,182		—
Less:
General and administrative expense	43,571		27,619
Transaction costs	443		2,104
Depreciation and amortization expense	120,595		108,462
Interest expense	100,433		103,237
Impairment loss	8,306		—
Impairment loss from discontinued operations	3,241		—
Noncontrolling interest in property partnerships	2,574		546
Noncontrolling interest—redeemable preferred units of the Operating Partnership	1,180		801
Noncontrolling interest—common units of the Operating Partnership	4,358		5,973
Noncontrolling interest in discontinued operations—common units of the Operating Partnership	1,819		61
Net income attributable to Boston Properties, Inc.	$	48,000	$	48,454

- Definition

Tabular disclosure of all significant reconciling items in the reconciliation of total profit or loss from reportable segments, to the entity's consolidated income before income taxes, extraordinary items, and discontinued operations.

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- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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