CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Company's involvement with VIEs:
Land	$ 2,042,016	$ 1,889,438
Accumulated depreciation and amortization	2,403,205	2,250,757
Accounts Receivable	45,824	36,339
Cash and cash equivalents	115,770	183,810
Other assets, net	960,207	940,172
Accounts payable and accrued liabilities	433,636	432,934
Deferred Revenue	96,586	95,411
Balance Sheet Parenthetical Disclosures
Accounts receivable, allowance (in dollars)	$ 3,607	$ 3,785
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	462,486,416	459,746,267
Common stock, shares outstanding	462,486,416	459,746,267
VIEs
Company's involvement with VIEs:
Buildings and improvements	$ 751,000	$ 677,000
Land	125,000	113,000
Accumulated depreciation and amortization	121,000	111,000
Accounts Receivable	16,000	5,000
Cash and cash equivalents	57,000	42,000
Other assets, net	24,000	23,000
Accounts payable and accrued liabilities	52,000	34,000
Deferred Revenue	$ 12,000	$ 12,000