VARIABLE INTEREST ENTITIES (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
VARIABLE INTEREST ENTITIES
Accounts receivable	$ 30,397	$ 18,759
Property and equipment, net	166,708	105,143
Other assets	169	122
Accounts payable	20,324	12,075
Accrued expenses	12,615	9,858
Noncontrolling interest	(2,231)	(841)
Riverchase Village Facility
VARIABLE INTEREST ENTITIES
Cash	10	16
Accounts receivable	7	10
Restricted investments	326	451
Property and equipment, net	5,993	5,999
Other assets	411	432
Total assets	6,747	6,908
Accounts payable	1,112	740
Accrued expenses	130	174
Current portion of notes payable	99	99
Notes payable, net of current portion	6,010	6,077
Noncontrolling interest	(604)	(182)
Total liabilities	6,747	6,908
Oklahoma Facilities
VARIABLE INTEREST ENTITIES
Cash	191	181
Accounts receivable	1,219	800
Property and equipment, net	10,916	11,111
Other assets	586	642
Total assets	12,912	12,734
Accounts payable	1,672	458
Accrued expenses	428	357
Current portion of notes payable	2,998	189
Notes payable, net of current portion	9,441	12,389
Noncontrolling interest	(1,627)	(659)
Total liabilities	$ 12,912	$ 12,734