Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2011

Segment Reporting (Tables) [Abstract]

Summary of information for reportable segments

Summary information for the reportable segments during the years ended December 31, 2011, 2010 and 2009 is as follows (in thousands and includes amounts from discontinued operations):

											Property		Net		Real Estate
	Rental		Resident Fees		Interest		Other		Total		Operating		Operating		Depreciation/		Interest		Total
	Income		and Services		Income		Income		Revenues		Expenses		Income⁽¹⁾		Amortization		Expense		Assets
Year Ended December 31, 2011
Seniors housing triple-net	$	622,330	$	0	$	34,068	$	6,620	$	663,018	$	0	$	663,018	$	178,321	$	15,306	$	7,823,953
Seniors housing operating		0		456,085		0		0		456,085		314,142		141,943		138,192		46,342		3,041,238
Medical facilities⁽²⁾		306,516		0		7,002		3,985		317,503		69,728		247,775		107,092		31,467		3,795,940
Non-segment/Corporate		0		0		0		690		690		0		690		0		228,884		263,475
	$	928,846	$	456,085	$	41,070	$	11,295	$	1,437,296	$	383,870	$	1,053,426	$	423,605	$	321,999	$	14,924,606

Year Ended December 31, 2010
Seniors housing triple-net	$	382,904	$	0	$	36,176	$	3,386	$	422,466	$	0	$	422,466	$	111,213	$	15,111	$	4,756,896
Seniors housing operating		0		51,006		0		0		51,006		32,621		18,385		15,504		7,794		1,080,416
Medical facilities⁽²⁾		220,506		0		4,679		985		226,170		53,844		172,326		75,826		24,926		3,389,441
Non-segment/Corporate		0		0		0		2,874		2,874		0		2,874		0		113,129		224,981
	$	603,410	$	51,006	$	40,855	$	7,245	$	702,516	$	86,465	$	616,051	$	202,543	$	160,960	$	9,451,734

Year Ended December 31, 2009
Seniors housing triple-net	$	358,109	$	0	$	35,945	$	5,309	$	399,363	$	0	$	399,363	$	101,300	$	12,622
Medical facilities		181,802		0		4,940		9,368		196,110		48,965		147,145		63,623		20,584
Non-segment/Corporate		0		0		0		1,170		1,170		0		1,170		0		76,567
	$	539,911	$	0	$	40,885	$	15,847	$	596,643	$	48,965	$	547,678	$	164,923	$	109,773

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Net operating income (“NOI”) is used to evaluate the operating performance of our properties. We define NOI as total revenues, including tenant reimbursements, less property level operating expenses, which exclude depreciation and amortization, general and administrative expenses, impairments and interest expense. We believe NOI provides investors relevant and useful information because it measures the operating performance of our properties at the property level on an unleveraged basis. We use NOI to make decisions about resource allocations and to assess the property level performance of our properties.
Excludes income and expense amounts related to our properties held in unconsolidated entities. Please see Note 7 for additional information.