DESCRIPTION OF BUSINESS (Details)		3 Months Ended		10 Months Ended	12 Months Ended
	Mar. 09, 2015 USD ($)	Mar. 31, 2016 USD ($) segment sales_channel facility property product	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Business Acquisition [Line Items]
Payments to acquire businesses, net of cash acquired (in dollars)		$ 0	$ 697,183,000
Number of reportable segments | segment		2
Number of channels | sales_channel		4
Number of internally developed branded pharmaceutical product candidate | product		1
Number of other branded products | product		4
California
Business Acquisition [Line Items]
Number of owned properties | property		5
Hayward California
Business Acquisition [Line Items]
Number of leased properties | facility		2
Tower And Lineage
Business Acquisition [Line Items]
Payments to acquire businesses, net of cash acquired (in dollars)	$ 691,300,000			$ 691,348,000
Cash acquired from acquisition	$ 41,500,000
Severance costs					$ 2,400,000
Business combination, number of positions eliminated					10