Note 21 - Income Taxes (Details) - Taxable Income and Provisions for Income Taxes (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Note 21 - Income Taxes (Details) - Taxable Income and Provisions for Income Taxes [Line Items]
Net income from U.S. taxable REIT subsidiaries	$ 435,880us-gaap_ProfitLoss	$ 241,353us-gaap_ProfitLoss	$ 280,275us-gaap_ProfitLoss
Federal tax (provision)/benefit	(9,066)	10,799	(3,141)
Total tax (provision)/benefit – U.S.	(22,438)us-gaap_IncomeTaxExpenseBenefit	(32,654)us-gaap_IncomeTaxExpenseBenefit	(15,603)us-gaap_IncomeTaxExpenseBenefit
Taxable REIT Subsidiaries [Member]
Note 21 - Income Taxes (Details) - Taxable Income and Provisions for Income Taxes [Line Items]
Income/(loss) before income taxes – U.S.	22,176	(4,849)	8,390
Net income from U.S. taxable REIT subsidiaries	13,110	5,950	5,249
Income before taxes – Non-U.S.	116,184	188,215	33,842
Current	(522)	(1,647)	(503)
Deferred	(7,156)	9,725	(535)
Federal tax (provision)/benefit	(7,678)	8,078	(1,038)
Current	(165)	1,159	(1,543)
Deferred	(1,223)	1,562	(560)
State tax (provision)/benefit	(1,388)	2,721	(2,103)
Total tax (provision)/benefit – U.S.	(9,066)	10,799	(3,141)
Current	(18,131)	(30,102)	5,790
Deferred	(6,749)	2,045	1,239
Non-U.S. tax (provision)/benefit	$ (24,880)	$ (28,057)	$ 7,029

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