Interim Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 73,839,000	$ 66,701,000
Restricted cash and cash equivalents	17,376,000	11,563,000
Marketable securities	123,577,000	107,250,000
Restricted marketable securities	134,782,000	135,207,000
Accounts receivable, less allowance for doubtful accounts of $3,407 and $3,166, respectively	75,687,000	74,693,000
Inventories	6,558,000	6,660,000
Prepaid expenses and other assets	2,917,000	1,132,000
Notes receivable	5,950,000	5,840,000
Federal income tax receivable		5,933,000
Total current assets	440,686,000	414,979,000
Property and Equipment:
Property and equipment, at cost	681,818,000	675,455,000
Accumulated depreciation and amortization	(261,501,000)	(254,548,000)
Net property and equipment	420,317,000	420,907,000
Other Assets:
Deposits	108,000	143,000
Goodwill	17,600,000	17,600,000
Notes receivable	15,445,000	15,949,000
Deferred income taxes	13,844,000	12,817,000
Investments in limited liability companies	41,823,000	40,039,000
Total other assets	88,820,000	86,548,000
Total assets	949,823,000	922,434,000
Current Liabilities:
Trade accounts payable	10,948,000	10,555,000
Accrued payroll	35,385,000	37,243,000
Amounts due to third party payors	16,826,000	17,001,000
Accrued risk reserves	114,367,000	110,331,000
Deferred income taxes	30,420,000	24,474,000
Other current liabilities	23,182,000	20,411,000
Dividends payable	6,461,000	6,480,000
Total current liabilities	237,589,000	226,495,000
Long–term debt	10,000,000	10,000,000
Refundable entrance fees	10,837,000	10,680,000
Deferred revenue	6,334,000	3,430,000
Obligation to provide future services	1,791,000	1,791,000
Other noncurrent liabilities	14,462,000	13,890,000
Stockholders’ Equity:
Series A Convertible Preferred Stock; $.01 par value; 25,000,000 shares authorized; 10,838,305 and 10,838,412 shares, respectively, issued and outstanding; stated at liquidation of $15.75 per share	170,512,000	170,514,000
Common stock, $.01 par value; 30,000,000 shares authorized; 14,058,152 and 14,158,127 shares, respectively, issued and outstanding	140,000	141,000
Capital in excess of par value	150,493,000	154,692,000
Retained earnings	287,413,000	279,993,000
Accumulated other comprehensive income	60,252,000	50,808,000
Total stockholders’ equity	668,810,000	656,148,000
Total liabilities and stockholders’ equity	$ 949,823,000	$ 922,434,000