Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended															12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012	Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Revenues:
Rental																$ 467,764		$ 422,793		$ 404,815
Tenant recoveries																150,095		133,280		126,205
Other income																13,292		18,424		5,760
Total revenues	168,823	[1]	158,315	[1]	153,930	[1]	150,083	[1]	151,254	142,547	[1]	145,296	[1]	135,400	[1]	631,151		574,497		536,780
Expenses:
Rental operations																189,039		172,756		157,634
General and administrative																48,520		47,747		41,112
Interest																67,952	[2]	69,184	[2]	63,373	[2]
Depreciation and amortization																189,123		185,687		150,906
Impairment of land parcel																0		2,050		0
Loss on early extinguishment of debt																1,992		2,225		6,485
Total expenses																496,626		479,649		419,510
Income from continuing operations																134,525		94,848		117,270
Income from discontinued operations:
Income from discontinued operations before impairment of real estate																900		20,216		19,071
Impairment of real estate																0		(11,400)		(994)
Income from discontinued operations																900	[3]	8,816	[3]	18,077	[3]
Gain on sale of land parcel																4,824		1,864		46
Net income																140,249		105,528		135,393
Net income attributable to noncontrolling interests																4,032		3,402		3,975
Dividends on preferred stock																25,885		27,328		28,357
Preferred stock redemption charge																0		5,978		0
Net income attributable to unvested restricted stock awards																1,581		1,190		1,088
Net income attributable to Alexandria’s common stockholders	$ 36,247		$ 24,579		$ 25,483		$ 22,442		$ 21,000	$ 10,646		$ 17,616		$ 18,368		$ 108,751		$ 67,630		$ 101,973
Earnings per share attributable to Alexandria’s common stockholders – basic and diluted:
Continuing operations																$ 1.59		$ 0.95		$ 1.42
Discontinued operations, net																$ 0.01		$ 0.14		$ 0.31
Earnings per share – basic and diluted	$ 0.51	[4]	$ 0.35	[4]	$ 0.38	[4]	$ 0.36	[4]	$ 0.33	$ 0.17	[4]	$ 0.29	[4]	$ 0.30	[4]	$ 1.60		$ 1.09		$ 1.73

[1] All periods have been adjusted from amounts previously disclosed in our quarterly filings on Form 10-Q to reclassify amounts related to discontinued operations. See Note 17, Discontinued Operations.

[2] Includes interest expense related to and classified in income from discontinued operations in the accompanying consolidated statements of income.

[3] Income from discontinued operations includes the results of operations of four properties that were classified as “held for sale” as of December 31, 2013, as well as the results of operations (prior to disposition) and gain/loss on sale of real estate attributable to 14 properties sold during the period from January 1, 2011, to December 31, 2013.

[4] Quarterly earnings per common share amounts may not total to the annual amounts due to rounding and due to the increase in the weighted average shares of common stock outstanding.