Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Summary of Significant Accounting Policies

Schedule of interest capitalized

	For the Year Ended December 31,
	2012		2011		2010
Capitalized interest	$	21,145	$	5,815	$	3,715

Schedule of deferred costs and other assets

	2012		2011
Deferred financing and lease costs, net	$	334,337	$	308,380
In-place lease intangibles, net		358,141		200,098
Acquired above market lease intangibles, net		128,893		75,950
Marketable securities of our captive insurance companies		119,424		100,721
Goodwill		20,098		20,098
Other marketable and non-marketable securities		150,264		421,529
Loans held for investment		—		162,832
Prepaids, notes receivable and other assets, net		459,577		343,936
	$	1,570,734	$	1,633,544

Schedule of deferred financing and leasing costs

	2012			2011
Deferred financing and lease costs	$	576,821		$	528,273
Accumulated amortization		(242,484	)		(219,893	)
Deferred financing and lease costs, net	$	334,337		$	308,380

Schedule of amortization, included in statements of operations and comprehensive income

	For the Year Ended December 31,
	2012			2011			2010
Amortization of deferred financing costs	$	27,163		$	28,697		$	27,806
Amortization of debt premiums, net of discounts		(33,504	)		(8,439	)		(9,066	)
Amortization of deferred leasing costs		43,176			43,110			34,801

Schedule of intangible assets

	2012			2011
In-place lease intangibles	$	480,517		$	245,844
Accumulated amortization		(122,376	)		(45,746	)
In-place lease intangibles, net	$	358,141		$	200,098
Acquired above market lease intangibles	$	248,357		$	178,564
Accumulated amortization		(119,464	)		(102,614	)
Acquired above market lease intangibles, net	$	128,893		$	75,950

Schedule of estimated future amortization and the increasing (decreasing) effect on minimum rents for above and below market leases

	Below Market Leases	Above Market Leases	Impact to Minimum Rent, Net
2013	$  43,664	$(24,899)	$18,765
2014	36,343	(22,492)	13,851
2015	31,233	(19,837)	11,396
2016	27,279	(17,903)	9,376
2017	20,000	(14,022)	5,978
Thereafter	40,720	(29,740)	10,980
	$199,239	$(128,893)	$70,346

Schedule of outstanding interest rate derivatives related to interest rate risk

   As of December 31, 2012, we had the following outstanding interest rate derivatives related to managing our interest rate risk:

Interest Rate Derivative	Number of Instruments	Notional Amount
Interest Rate Swaps	3	$483.7 million
Interest Rate Caps	6	$442.4 million

Schedule of carrying amount of noncontrolling interests

	2012			2011
Limited partners' interests in the Operating Partnership	$	983,363		$	953,622
Nonredeemable noncontrolling deficit interests in properties, net		(877	)		(59,000	)
Total noncontrolling interests reflected in equity	$	982,486		$	894,622

Schedule of rollforward of noncontrolling interests

	2012			2011			2010
Noncontrolling interests, beginning of period	$	894,622		$	802,972		$	724,825
Net income attributable to noncontrolling interests after preferred distributions and income attributable to redeemable noncontrolling interests in consolidated properties		274,701			210,240			134,161
Distributions to noncontrolling interest holders		(239,207	)		(212,526	)		(178,082	)
Other comprehensive income (loss) allocable to noncontrolling interests:
Unrealized gain (loss) on interest rate hedge agreements		5,634			(15,814	)		(309	)
Net loss on derivative instruments reclassified from accumulated comprehensive income (loss) into interest expense		3,021			2,774			2,689
Currency translation adjustments		2,435			(1,484	)		(3,452	)
Changes in available-for-sale securities and other		(6,807	)		(6,340	)		3,074
		4,283			(20,864	)		2,002
Adjustment to limited partners' interest from increased (decreased) ownership in the Operating Partnership		99,834			(36,032	)		(103,728	)
Units issued to limited partners		31,324			9,084			213,861
Units exchanged for common shares		(144,197	)		(9,465	)		(3,866	)
Units redeemed		(38,904	)		—			—
Purchase of noncontrolling interests, noncontrolling interests in newly consolidated properties and other		100,030			151,213			13,799
Noncontrolling interests, end of period	$	982,486		$	894,622		$	802,972

Schedule of accumulated other comprehensive loss by components

	2012			2011
Cumulative translation adjustments	$	(30,620	)	$	(39,820	)
Accumulated derivative losses, net		(78,139	)		(115,833	)
Net unrealized gains on marketable securities, net		2,613			41,861
Total accumulated other comprehensive loss		(106,146	)		(113,792	)
Less: Accumulated other comprehensive loss attributable to noncontrolling interests		15,246			19,529
Total accumulated other comprehensive loss net of noncontrolling interests	$	(90,900	)	$	(94,263	)

Schedule of activity in the allowance for credit losses including the activity related to discontinued operations

	For the Year Ended December 31,
	2012			2011			2010
Balance, beginning of period	$	27,500		$	31,650		$	45,187
Consolidation of previously unconsolidated properties		2,075			860			426
Provision for credit losses		12,809			6,505			3,130
Accounts written off, net of recoveries		(9,254	)		(11,515	)		(17,093	)
Balance, end of period	$	33,130		$	27,500		$	31,650