Note 5 - Discontinued Operations and Assets Held-for-Sale (Details) - Income from Discontinued Operations (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues from rental property	$ 44,168	$ 76,442	$ 113,508
Rental property expenses	(14,861)	(26,203)	(40,054)
Depreciation and amortization	(10,318)	(25,820)	(32,878)
Provision for doubtful accounts	(847)	(2,243)	(2,904)
Interest income/(expense)	300	(2,882)	(3,672)
Income from other real estate investments	208,689	112,896	63,467
Other expense, net	(449)	(922)	(351)
Income from discontinued operating properties, before income taxes	17,993	18,385	35,352
Impairment of property carrying value, before income taxes	(98,815)	(49,280)	(19,698)
Gain on disposition of operating properties, before income taxes	48,731	85,894	17,327
Benefit for income taxes	10,329	10,904	7,585
(Loss)/income from discontinued operating properties	(21,762)	65,903	40,566
Net loss/(income) attributable to noncontrolling interests	8,301	(3,133)	(2,799)
(Loss)/income from discontinued operations attributable to the Company	(13,461)	62,770	37,767
Other [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from other real estate investments		$ 13	$ 1,703