SCHEDULE III - SCHEDULE OF REAL ESTATE AND ACCUMULATED DEPRECIATION (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Activity in Real Estate
Gross amount at beginning of year	$ 2,019,585	$ 1,949,073
Additions during period:
Acquisitions	33,180	0
Discretionary capital projects	136,398	119,654
Other adjustments	101,386	0
Foreign currency translation fluctuations	(85,092)	(36,324)
Total additions	185,872	83,330
Deductions during period:
Cost of real estate sold or disposed	(469)	(12,818)
Gross amount at end of year	2,204,988	2,019,585
Change in accumulated depreciation
Gross amount of accumulation depreciation at beginning of year:	648,734	592,329
Additions during period:
Depreciation	77,976	66,617
Other	39,937	0
Foreign currency translation fluctuations	(21,310)	(6,547)
Total additions	96,603	60,070
Deductions during period
Amount of accumulated depreciation for real estate assets sold or disposed	(151)	(3,665)
Gross amount of end of period	$ 745,186	$ 648,734