Note 1 - Interim Financial Statements (Detail) - Reconciliation Of Earnings/(Loss) And The Weighted Average Number Of Shares (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Income from continuing operations	$ 62,387		$ 42,299		$ 119,258		$ 72,897
Gain on sale of operating properties, net of tax	4,059				4,059
Net income attributable to noncontrolling interests	(3,275)		(2,606)		(8,785)		(5,665)
Discontinued operations attributable to noncontrolling interests	51		118		2,282		227
Preferred stock dividends	(20,841)		(14,841)		(36,415)		(29,681)
Income from continuing operations available to the common shareholders	42,381		24,970		80,399		37,778
Earnings attributable to unvested restricted shares	(313)		(166)		(627)		(331)
Income from continuing operations attributable to common shareholders	42,068		24,804		79,772		37,447
Income/(loss) from discontinued operations attributable to the Company	5,890		(1,102)		5,936		212
Net income attributable to the Company’s common shareholders for basic earnings per share	47,958		23,702		85,708		37,659
Weighted average common shares outstanding (in Shares)	405,560		406,559		405,916		406,500
Income from continuing operations (in Dollars per share)	$ 0.10		$ 0.06		$ 0.20		$ 0.09
Income from discontinued operations (in Dollars per share)	$ 0.02				$ 0.01
Net income (in Dollars per share)	$ 0.12		$ 0.06		$ 0.21		$ 0.09
Income from continuing operations attributable to common shareholders	42,068		24,804		79,772		37,447
Income/(loss) from discontinued operations attributable to the Company	5,890		(1,102)		5,936		212
Net income attributable to the Company’s common shareholders for diluted earnings per share	$ 47,958		$ 23,702		$ 85,708		$ 37,659
Weighted average common shares outstanding – basic (in Shares)	405,560		406,559		405,916		406,500
Equity awards (in Shares)	916	[1]	1,003	[1]	911	[1]	972	[1]
Shares for diluted earnings per common share (in Shares)	406,476		407,562		406,827		407,472
Income from continuing operations (in Dollars per share)	$ 0.10		$ 0.06		$ 0.20		$ 0.09
Income from discontinued operations (in Dollars per share)	$ 0.02				$ 0.01
Net income (in Dollars per share)	$ 0.12		$ 0.06		$ 0.21		$ 0.09

[1] For the three and six months ended June 30, 2012 and 2011, the effect of certain convertible units would have an anti-dilutive effect upon the calculation of Income from continuing operations per share. Accordingly, the impact of such conversion has not been included in the determination of diluted earnings per share calculations. Additionally, there were 14,343,058 and 13,663,959 stock options that were not dilutive at June 30, 2012 and 2011, respectively.