Condensed Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Assets
Investments in real estate	$ 6,635,872	$ 6,060,821
Less: accumulated depreciation	(710,580)	(616,007)
Investments in real estate, net	5,925,292	5,444,814
Cash and cash equivalents	73,056	91,232
Restricted cash	27,929	28,354
Tenant receivables	6,599	5,492
Deferred rent	132,954	116,849
Investments	88,777	83,899
Other assets	200,949	135,221
Total assets	6,455,556	5,905,861
Liabilities, Noncontrolling Interests, and Equity
Secured notes payable	760,882	790,869
Unsecured line of credit	814,000	748,000
Unsecured term loans	1,000,000	750,000
Unsecured convertible notes	84,484	295,293
Accounts payable, accrued expenses, and tenant security deposits	330,044	304,257
Dividends payable	35,287	31,114
Total liabilities	3,024,697	2,919,533
Redeemable noncontrolling interests	15,931	15,920
Alexandria Real Estate Equities, Inc.'s stockholders' equity:
Series C preferred stock	129,638	129,638
Series D convertible preferred stock	250,000	250,000
Common stock	614	550
Additional paid-in capital	3,025,444	2,566,238
Retained earnings		734
Accumulated other comprehensive loss	(32,202)	(18,335)
Alexandria Real Estate Equities, Inc.'s stockholders' equity	3,373,494	2,928,825
Noncontrolling interests	41,434	41,583
Total equity	3,414,928	2,970,408
Total liabilities, noncontrolling interests, and equity	$ 6,455,556	$ 5,905,861