INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands		6 Months Ended
	Apr. 02, 2015	Jun. 30, 2015	Dec. 31, 2014
Intangible assets
Gross Carrying Amount		$ 1,108,579	$ 89,090
Accumulated amortization		(46,000)	(16,729)
Total		1,062,579	72,361
Future amortization expenses of intangible assets
2015 (remainder)		54,038
2016		108,100
2017		108,100
2018		108,100
2019		108,100
Thereafter		$ 576,141
NUCYNTA
Intangible assets
Remaining Useful Life (In years)	10 years
Product rights | NUCYNTA
Intangible assets
Remaining Useful Life (In years)		10 years
Gross Carrying Amount		$ 1,019,489
Accumulated amortization		(24,325)
Total		$ 995,164
Product rights | CAMBIA
Intangible assets
Remaining Useful Life (In years)		8 years 6 months
Gross Carrying Amount		$ 51,360	51,360
Accumulated amortization		(7,915)	(5,347)
Total		$ 43,445	46,013
Product rights | Lazanda
Intangible assets
Remaining Useful Life (In years)		7 years
Gross Carrying Amount		$ 10,480	10,480
Accumulated amortization		(2,232)	(1,650)
Total		$ 8,248	8,830
Product rights | Zipsor
Intangible assets
Remaining Useful Life (In years)		6 years 9 months 18 days
Gross Carrying Amount		$ 27,250	27,250
Accumulated amortization		(11,528)	(9,732)
Total		$ 15,722	$ 17,518