CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 45,701	$ 58,511
Cash and escrow deposits - restricted	33,953	38,191
Accounts receivable, net	107,568	104,262
Deferred tax asset	17,045	17,643
Prepaid expenses and other current assets, net	83,115	76,255
Total current assets	287,382	294,862
Property, plant and equipment and leasehold intangibles, net	3,886,391	3,895,475
Cash and escrow deposits - restricted	55,222	57,611
Investment in unconsolidated ventures	44,064	44,103
Goodwill	109,553	109,553
Other intangible assets, net	158,203	158,757
Other assets, net	178,793	177,396
Total assets	4,719,608	4,737,757
Current liabilities
Current portion of long-term debt	65,245	201,954
Trade accounts payable	53,010	65,840
Accrued expenses	188,321	209,479
Refundable entrance fees and deferred revenue	398,300	388,400
Tenant security deposits	5,241	5,171
Total current liabilities	710,117	870,844
Long-term debt, less current portion	2,544,162	2,404,624
Line of credit	25,000	30,000
Deferred entrance fee revenue	89,653	86,862
Deferred liabilities	155,002	154,870
Deferred tax liability	81,299	81,299
Other liabilities	87,706	88,321
Total liabilities	3,692,939	3,716,820
Stockholders' Equity
Preferred stock, $0.01 par value, 50,000,000 shares authorized at March 31, 2014 and December 31, 2013; no shares issued and outstanding	0	0
Common stock, $0.01 par value, 200,000,000 shares authorized at March 31, 2014 and December 31, 2013; 131,122,449 and 130,155,012 shares issued and 128,694,048 and 127,726,611 shares outstanding (including 3,877,634 and 3,372,937 unvested restricted shares), respectively	1,287	1,277
Additional paid-in-capital	2,033,492	2,025,471
Treasury stock, at cost; 2,428,401 shares at March 31, 2014 and December 31, 2013	(46,800)	(46,800)
Accumulated deficit	(961,310)	(959,011)
Total stockholders' equity	1,026,669	1,020,937
Total liabilities and stockholders' equity	$ 4,719,608	$ 4,737,757