Indebtedness and Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Indebtedness and Derivative Financial Instruments

Schedule of mortgages and other indebtedness

	2012		2011
Fixed-Rate Debt:
Mortgages and other notes, including $101,104 and $54,250 net premiums, respectively. Weighted average interest and maturity of 5.85% and 4.4 years at December 31, 2012.	$	7,677,204	$	5,566,600
Unsecured notes, including $38,847 and $29,178 net discounts, respectively. Weighted average interest and maturity of 5.09% and 7.1 years at December 31, 2012.		13,400,154		10,640,775
Total Fixed-Rate Debt		21,077,358		16,207,375
Variable-Rate Debt:
Mortgages and other notes, at face value. Weighted average interest and maturity of 2.57% and 1.5 years at December 31, 2012.		442,152		1,286,401
Credit Facility (see below)		1,593,497		952,664
Total Variable-Rate Debt		2,035,649		2,239,065
Total Mortgages and Other Indebtedness	$	23,113,007	$	18,446,440

Scheduled principal repayments of indebtedness

2013	$	821,637
2014		2,337,975
2015		2,098,028
2016		5,642,023
2017		3,281,808
Thereafter		8,869,279
Total principal maturities		23,050,750
Net unamortized debt premium		62,257
Total mortgages and other indebtedness	$	23,113,007

Schedule of cash paid for interest in each period, net of any amounts capitalized

	For the Year Ended December 31,
	2012		2011		2010
Cash paid for interest	$	1,122,223	$	979,436	$	1,015,989

Schedule of fair value of fixed rate mortgages and other indebtedness

	2012		2011
Fair value of fixed-rate mortgages and other indebtedness	$	23,373	$	17,905
Weighted average discount rates assumed in calculation of fair value for fixed-rate mortgages		3.24%		3.60%