SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Real Estate
Balance at at beginning	$ 804,489	$ 828,093	$ 1,063,634
Additions
Acquisitions, improvements and construction	222,423	71,423	9,182
Deductions
Sale of real estate	(38,785)	(95,027)	(233,617)
Asset impairments	(5,300)		(11,106)
Balance at ending	982,827	804,489	828,093
Reconciliation of Accumulated Depreciation
Balance at at beginning	115,368	132,291	166,684
Additions
Depreciation	25,565	17,145	20,520
Deductions
Sale of real estate	(2,125)	(34,068)	(54,913)
Balance at ending	$ 138,808	$ 115,368	$ 132,291