COMMITMENTS AND CONTINGENCIES (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
COMMITMENTS AND CONTINGENCIES.
Amount of outstanding letters of credit and surety bonds	$ 49,300,000	$ 41,600,000
Contractual rental expense, including participation rent	5,400,000	5,200,000	3,500,000
Mortgages, notes and loans payable
2013	28,722,000
2014	34,976,000
2015	129,170,000
2016	238,244,000
2017	35,054,000
Subsequent/Other	222,146,000
Total	688,312,000
Ground lease payments
2013	5,836,000
2014	5,649,000
2015	5,538,000
2016	5,240,000
2017	4,613,000
Subsequent/Other	178,586,000
Total	205,462,000
Uncertainty in income taxes, including interest
Subsequent/Other	132,492,000
Total	132,492,000
Total
2013	34,558,000
2014	40,625,000
2015	134,708,000
2016	243,484,000
2017	39,667,000
Subsequent/Other	533,224,000
Total	$ 1,026,266,000