FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 3) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014 Carrying Amount	Dec. 31, 2013 Carrying Amount	Sep. 30, 2014 Estimated Fair Value	Dec. 31, 2013 Estimated Fair Value
Assets:
Cash and cash equivalents		$ 605,592,000	$ 894,948,000	$ 605,592,000	$ 894,948,000
Notes receivable, net		12,724,000	20,554,000	12,724,000	20,554,000
Tax indemnity receivable, including interest		333,877,000	320,494,000
Liabilities:
Fixed-rate debt		956,739,000	971,786,000	979,836,000	1,012,461,000
Variable-rate debt		899,623,000	509,737,000	899,623,000	509,737,000
SID bonds		24,554,000	33,100,000	24,399,000	32,837,000
Total mortgages, notes and loans payable		1,880,916,000	1,514,623,000	1,903,858,000	1,555,035,000
Maximum maturity period of bank deposits	90 days
Variable-rate debt that has been swapped to a fixed rate	$ 172,000,000