SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands		3 Months Ended		7 Months Ended
	May. 02, 2016	Mar. 31, 2016	Mar. 31, 2015	May. 06, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, increase (decrease)		$ (61,960)	$ (21,637)
Accounts receivable, gross, current		729,060			$ 738,730
Accrued liabilities, current		213,112			204,711
Reserve for Turing receivable		$ 48,043	$ 0
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash discount, discount rate		2.00%
Cash discount, invoice terms		30 days
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Cash discount, discount rate		3.00%
Cash discount, invoice terms		90 days
Turing Pharmaceuticals AG | Subsequent Event
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loss contingency, damages sought, value	$ 20,000
Turing Pharmaceuticals AG
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, net		$ 42,900			$ 40,600
Accounts receivable, increase (decrease)		7,400
Accounts receivable, gross, current		48,000
Accounts receivable, payments made on behalf of counterparty		5,100
Reserve for Turing receivable		48,043
Turing Pharmaceuticals AG | Subsequent Event
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, payments made on behalf of counterparty				$ 19,200
Chargeback and Medical Rebates | Overdue Unpaid Invoices from Turing Pharmaceuticals AG
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, estimated balance		20,000
Daraprim
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accrued liabilities, current		$ 42,900