PROPERTY AND EQUIPMENT (Details) (USD $)	3 Months Ended		6 Months Ended					6 Months Ended		3 Months Ended			6 Months Ended						6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Jun. 30, 2012 Buildings and improvements	Dec. 31, 2011 Buildings and improvements	Jun. 30, 2012 Buildings and improvements Minimum	Jun. 30, 2012 Buildings and improvements Maximum	Mar. 31, 2012 Office building located in Rogers, Arkansas	Jun. 30, 2012 Equipment	Dec. 31, 2011 Equipment	Jun. 30, 2012 Equipment Minimum	Jun. 30, 2012 Equipment Maximum	Jun. 30, 2012 Land	Dec. 31, 2011 Land	Jun. 30, 2012 Computer related	Dec. 31, 2011 Computer related	Jun. 30, 2012 Computer related Minimum	Jun. 30, 2012 Computer related Maximum	Jun. 30, 2012 Construction in process	Dec. 31, 2011 Construction in process
PROPERTY AND EQUIPMENT
Estimated Useful Lives								5 years	40 years				2 years	10 years					2 years	10 years
Property and equipment, gross	$ 143,588,000		$ 143,588,000		$ 110,606,000	$ 121,648,000	$ 93,371,000				$ 10,060,000	$ 7,108,000			$ 9,206,000	$ 7,636,000	$ 2,487,000	$ 2,414,000			$ 187,000	$ 77,000
Less: accumulated depreciation expense	9,868,000		9,868,000		7,624,000
Less: accumulated amortization expense	796,000		796,000		533,000
Property and equipment, net	132,924,000		132,924,000		102,449,000
Depreciation and Amortization	1,594,000	705,000	3,304,000	1,352,000
Reclassification to goodwill	2,694,000		2,694,000
Impairment charge										$ 389,000