COMMITMENTS AND CONTINGENCIES (Details) (USD $)	3 Months Ended					57 Months Ended
	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2013	Aug. 24, 2012 Recipients	Jun. 30, 2011 Tri-State Clinical Laboratory Services, LLC [Member]	Sep. 30, 2012 Medicaid Billing [Member] Pending Litigation [Member] Subpoenas
Loss Contingencies [Line Items]
Litigation settlement expense in connection with the California False Claims Act lawsuit		$ 34,500,000
Previously recorded litigation reserve in connection with the California False Claims Act lawsuit		15,000,000
Litigation Settlement, Gross	49.5
Number of subpoenas received						3
Ownership interest percentage, parent					50.00%
Number of Recipients				39
Proposed damages per violation				0.0005
Letters of credit, amount			$ 37,400,000