ACCRUED LIABILITIES (Details) (USD $)			3 Months Ended	12 Months Ended	1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013 DOJ Investigation	Dec. 31, 2013 DOJ Investigation	Jan. 31, 2014 Subsequent Event
Accrued Liabilities [Line Items]
Compensation	$ 19,367,000	$ 17,031,000
Insurance dispute and settlement reserve	30,000,000	9,729,000
Legal expenses	2,226,000	3,730,000
Other	13,355,000	11,184,000
Accrued liabilities	64,948,000	41,674,000
Increase (decrease) in accrued liabilities			20,200,000
Litigation settlement amount				30,000,000
Litigation settlement paid					$ 30,000,000