Reportable Segments (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Schedule of Reconciliation of NOI from Rental Real Estate Specific to Continuing Operations

The following table presents a reconciliation of NOI from our rental real estate specific to continuing operations for the years ended December 31, 2018, 2017 and 2016, respectively (amounts in thousands):

	Year Ended December 31,
	2018			2017			2016
Rental income	$	2,577,681		$	2,470,689		$	2,422,233
Property and maintenance expense		(429,335	)		(405,281	)		(406,823	)
Real estate taxes and insurance expense		(357,814	)		(335,495	)		(317,387	)
Total operating expenses		(787,149	)		(740,776	)		(724,210	)
Net operating income	$	1,790,532		$	1,729,913		$	1,698,023

Schedule of NOI for Each Segment from Rental Real Estate Specific to Continuing Operations

The following tables present NOI for each segment from our rental real estate specific to continuing operations for the years ended December 31, 2018, 2017 and 2016, respectively, as well as total assets and capital expenditures at December 31, 2018 and 2017, respectively (amounts in thousands):

	Year Ended December 31, 2018						Year Ended December 31, 2017						Year Ended December 31, 2016
	Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI		Rental Income		Operating Expenses		NOI
Same store (1)
Los Angeles	$	416,688	$	119,473	$	297,215	$	402,192	$	114,055	$	288,137	$	382,425	$	111,055	$	271,370
Orange County		91,650		22,071		69,579		88,527		21,544		66,983		84,590		20,600		63,990
San Diego		91,971		24,023		67,948		88,507		23,073		65,434		84,646		22,366		62,280
Subtotal - Southern California		600,309		165,567		434,742		579,226		158,672		420,554		551,661		154,021		397,640
San Francisco		442,773		105,686		337,087		430,501		108,689		321,812		371,633		90,393		281,240
Washington D.C.		434,545		134,427		300,118		430,060		129,720		300,340		424,350		126,154		298,196
New York		458,366		181,040		277,326		454,945		170,064		284,881		456,664		159,302		297,362
Boston		229,079		63,348		165,731		223,595		60,931		162,664		225,014		62,650		162,364
Seattle		196,479		55,165		141,314		191,074		52,470		138,604		168,975		46,255		122,720
Other Markets		1,940		657		1,283		1,839		652		1,187		1,797		567		1,230
Total same store		2,363,491		705,890		1,657,601		2,311,240		681,198		1,630,042		2,200,094		639,342		1,560,752
Non-same store/other (2) (3)
Non-same store		190,814		63,907		126,907		95,016		30,742		64,274		117,143		41,877		75,266
Other (3)		23,376		17,352		6,024		64,433		28,836		35,597		104,996		42,991		62,005
Total non-same store/other		214,190		81,259		132,931		159,449		59,578		99,871		222,139		84,868		137,271
Totals	$	2,577,681	$	787,149	$	1,790,532	$	2,470,689	$	740,776	$	1,729,913	$	2,422,233	$	724,210	$	1,698,023

(1) For the years ended December 31, 2018 and 2017, same store primarily includes all properties acquired or completed that were stabilized prior to January 1, 2017, less properties subsequently sold, which represented 71,721 apartment units.  For the year ended December 31, 2016, same store primarily includes all properties acquired or completed that were stabilized prior to January 1, 2016, less properties subsequently sold, which represented 70,117 apartment units.     

(2) For the years ended December 31, 2018 and 2017, non-same store primarily includes properties acquired after January 1, 2017, plus any properties in lease-up and not stabilized as of January 1, 2017.  For the year ended December 31, 2016, non-same store primarily includes properties acquired after January 1, 2016, plus any properties in lease-up and not stabilized as of January 1, 2016.  

(3) Other includes development, other corporate operations and operations prior to disposition for properties sold.

	Year Ended December 31, 2018				Year Ended December 31, 2017
	Total Assets		Capital Expenditures		Total Assets		Capital Expenditures
Same store (1)
Los Angeles	$	2,608,347	$	28,306	$	2,692,602	$	26,921
Orange County		318,472		8,192		328,593		9,237
San Diego		405,449		4,525		421,267		4,922
Subtotal - Southern California		3,332,268		41,023		3,442,462		41,080
San Francisco		2,967,735		44,837		3,039,552		38,618
Washington D.C.		3,702,368		29,616		3,803,185		35,423
New York		4,063,568		23,472		4,160,603		30,403
Boston		1,589,000		24,623		1,636,925		28,687
Seattle		1,277,865		17,825		1,316,678		21,646
Other Markets		12,781		163		12,768		103
Total same store		16,945,585		181,559		17,412,173		195,960
Non-same store/other (2) (3)
Non-same store		2,940,770		6,665		2,276,312		3,704
Other (3)		507,854		277		882,114		2,943
Total non-same store/other		3,448,624		6,942		3,158,426		6,647
Totals	$	20,394,209	$	188,501	$	20,570,599	$	202,607

(1) Same store primarily includes all properties acquired or completed that were stabilized prior to January 1, 2017, less properties subsequently sold, which represented 71,721 apartment units.

(2) Non-same store primarily includes properties acquired after January 1, 2017, plus any properties in lease-up and not stabilized as of January 1, 2017.

(3) Other includes development, other corporate operations and capital expenditures for properties sold.