CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues:
Minimum rents	$ 496,708	$ 429,007	$ 394,679
Percentage rents	24,389	19,175	16,401
Tenant recoveries	273,445	241,776	228,515
Management Companies	41,235	40,404	42,895
Other	45,546	33,009	29,067
Total revenues	881,323	763,371	711,557
Expenses:
Shopping center and operating expenses	280,531	242,298	223,773
Management Companies' operating expenses	85,610	86,587	90,414
REIT general and administrative expenses	20,412	21,113	20,703
Depreciation and amortization	302,553	252,075	226,550
Total expenses before interest	689,106	602,073	561,440
Interest expense:
Related parties	15,386	16,743	14,254
Other	161,392	162,965	183,789
Total interest expense	176,778	179,708	198,043
Loss (gain) on early extinguishment of debt, net		10,588	(3,661)
Total expenses	865,884	792,369	755,822
Equity in income of unconsolidated joint ventures	79,281	294,677	79,529
Co-venture expense	(6,523)	(5,806)	(6,193)
Income tax benefit	4,159	6,110	9,202
Gain (loss) on remeasurement, sale or write down of assets, net	204,668	(22,037)	497
Income from continuing operations	297,024	243,946	38,770
Discontinued operations:
Gain (loss) on disposition of assets, net	74,833	(58,230)	(23)
Loss from discontinued operations	(5,468)	(16,641)	(10,327)
Income (loss) from discontinued operations	69,365	(74,871)	(10,350)
Net income	366,389	169,075	28,420
Less net income attributable to noncontrolling interests	28,963	12,209	3,230
Net income attributable to the Company	$ 337,426	$ 156,866	$ 25,190
Earnings per common share attributable to Company-basic:
Income from continuing operations (in dollars per share)	$ 2.03	$ 1.70	$ 0.27
Discontinued operations (in dollars per share)	$ 0.48	$ (0.52)	$ (0.08)
Net income attributable to common stockholders	$ 2.51	$ 1.18	$ 0.19
Earnings per common share attributable to Company-diluted:
Income from continuing operations (in dollars per share)	$ 2.03	$ 1.70	$ 0.27
Discontinued operations (in dollars per share)	$ 0.48	$ (0.52)	$ (0.08)
Net income attributable to common stockholders	$ 2.51	$ 1.18	$ 0.19
Weighted average number of common shares outstanding:
Basic (in shares)	134,067,000	131,628,000	120,346,000
Diluted (in shares)	134,148,000	131,628,000	120,346,000