Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 81,705,000	$ 66,701,000
Restricted cash and cash equivalents	13,929,000	11,563,000
Marketable securities	105,009,000	107,250,000
Restricted marketable securities	142,003,000	135,207,000
Accounts receivable, less allowance for doubtful accounts of $4,972 and $3,166, respectively	85,511,000	76,959,000
Inventories	7,146,000	6,660,000
Prepaid expenses and other assets	1,208,000	1,132,000
Notes receivable	417,000	5,840,000
Federal income tax receivable		5,933,000
Total current assets	436,928,000	417,245,000
Property and Equipment:
Property and equipment, at cost	734,682,000	675,455,000
Accumulated depreciation and amortization	(277,884,000)	(254,548,000)
Net property and equipment	456,798,000	420,907,000
Other Assets:
Deposits	1,153,000	143,000
Goodwill	17,600,000	17,600,000
Notes receivable	14,961,000	15,949,000
Deferred income taxes	14,531,000	12,817,000
Investments in limited liability companies	38,754,000	40,039,000
Total other assets	86,999,000	86,548,000
Total assets	980,725,000	924,700,000
Current Liabilities:
Trade accounts payable	13,050,000	10,555,000
Accrued payroll	63,462,000	37,243,000
Amounts due to third party payors	21,619,000	19,267,000
Accrued risk reserves	110,557,000	110,331,000
Deferred income taxes	21,157,000	24,474,000
Other current liabilities	13,784,000	20,411,000
Dividends payable	6,730,000	6,480,000
Total current liabilities	250,359,000	228,761,000
Long-term debt	10,000,000	10,000,000
Refundable entrance fees	10,720,000	10,680,000
Obligation to provide future services	3,689,000	1,791,000
Other noncurrent liabilities	14,525,000	13,890,000
Deferred revenue	3,320,000	3,430,000
Stockholders’ Equity:
Series A convertible preferred stock; $.01 par value; 25,000,000 shares authorized; 10,837,665 and 10,838,412 shares, respectively, issued and outstanding; stated at liquidation value of $15.75 per share	170,510,000	170,514,000
Common stock, $.01 par value; 30,000,000 shares authorized; 14,078,028 and 14,158,127 shares, respectively, issued and outstanding	140,000	141,000
Capital in excess of par value	153,061,000	154,692,000
Retained earnings	318,216,000	279,993,000
Accumulated other comprehensive income	46,185,000	50,808,000
Total stockholders’ equity	688,112,000	656,148,000
Total liabilities and stockholders’ equity	$ 980,725,000	$ 924,700,000