Note 22 - Income Taxes - Taxable Income and Provisions for Income Taxes (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
(Loss)/income before income taxes – U.S.		$ (23,810)	$ 23,729	$ 22,176
Federal tax provision		(50,653)	(12,002)	(9,066)
Income tax benefit		(72,545)	(60,230)	(22,438)
Net (loss)/income from U.S. taxable REIT subsidiaries		386,138	900,143	435,880
Taxable REIT Subsidiaries [Member]
Current		2,199	(638)	(522)
Deferred		(45,097)	(7,355)	(7,156)
Federal tax provision		(42,898)	(7,993)	(7,678)
Current		1,057	(2,535)	(165)
Deferred		(8,812)	(1,474)	(1,223)
State tax provision		(7,755)	(4,009)	(1,388)
Income tax benefit		(50,653)	(12,002)	(9,066)
Net (loss)/income from U.S. taxable REIT subsidiaries		(74,463)	11,727	13,110
Income before taxes – Non-U.S.		138,253	381,999	116,184
Current (1)	[1]	(24,393)	(58,365)	(18,131)
Deferred		(3,537)	4,331	(6,749)
Non-U.S. tax provision		$ (27,930)	$ (54,034)	$ (24,880)

[1] For the years ended December 31, 2016 and 2015 includes $24.9 million and $53.5 million, respectively, in expense related to the sale of interests in properties located in Canada.