GENERAL - Schedule of Earnings (Loss) from Discontinued Operations (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from operating activities	$ (420)	$ (7,196)	$ (3,673)	$ (7,604)
Gains from dispositions of real estate	27,002	576	39,608	3,819
Earnings (loss) from discontinued operations	26,582	(6,620)	35,935	(3,785)
Segment, Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues from rental properties	591	1,208	2,185	8,781
Impairment charges	(2,727)	(6,407)	(6,353)	(7,633)
Other operating (expenses) credit	1,716	(1,997)	495	(8,752)
Loss from operating activities	(420)	(7,196)	(3,673)	(7,604)
Gains from dispositions of real estate	27,002	576	39,608	3,819
Earnings (loss) from discontinued operations	$ 26,582	$ (6,620)	$ 35,935	$ (3,785)