FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 3) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014 Carrying Amount	Dec. 31, 2013 Carrying Amount	Jun. 30, 2014 Estimated Fair Value	Dec. 31, 2013 Estimated Fair Value
Assets:
Cash and cash equivalents		$ 539,559,000	$ 894,948,000	$ 539,559,000	$ 894,948,000
Notes receivable, net		14,385,000	20,554,000	14,385,000	20,554,000
Tax indemnity receivable, including interest		329,813,000	320,494,000
Liabilities:
Fixed-rate debt		952,491,000	971,786,000	1,013,529,000	1,012,461,000
Variable-rate debt		660,057,000	509,737,000	660,057,000	509,737,000
SID bonds		26,585,000	33,100,000	26,411,000	32,837,000
Total mortgages, notes and loans payable		1,639,133,000	1,514,623,000	1,699,997,000	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