Note 5 - Discontinued Operations and Assets Held-for-sale (Details) - Income from Discontinued Operations - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Discontinued operations:
Revenues from rental property		$ 124	$ 71,906	$ 129,315
Rental property expenses		(49)	(16,657)	(39,425)
Depreciation and amortization			(15,019)	(33,142)
Provision for doubtful accounts		(57)	(719)	(2,971)
Interest expense			(1,823)	(1,371)
Income from other real estate investments		480,395	159,560	208,689
Other expense, net		(12)	(756)	(880)
Income from discontinued operating properties, before income taxes		6	37,612	52,246
Impairment of property carrying value, before income taxes (1)	[1]	(82)	(178,048)	(157,972)
Gain on disposition of operating properties, before income taxes			203,271	48,731
Benefit/(provision) for income taxes		1	(11,850)	8,462
(Loss)/income from discontinued operating properties		(75)	50,985	(48,533)
Net (income)/loss attributable to noncontrolling interests			(2,117)	7,930
(Loss)/income from discontinued operations attributable to the Company		$ (75)	48,868	(40,603)
Other [Member]
Discontinued operations:
Income from other real estate investments			$ 680	$ 720

[1] The year ended December 31, 2014, includes $92.9 million related to the release of a cumulative foreign currency translation loss due to the Company's substantial liquidation of its investment in Mexico.