RESTRUCTURING AND INTEGRATION (Details) (USD $)	12 Months Ended		1 Months Ended		12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010 employee	Mar. 31, 2011 AMPAKINE	Mar. 31, 2011 Stock options	Dec. 31, 2011 Employee Termination Costs	Dec. 31, 2010 Employee Termination Costs	Dec. 31, 2010 Employee Termination Costs Stock options and time-based RSUs with employment agreement Biovail	Dec. 31, 2010 Employee Termination Costs Stock options Biovail	Dec. 31, 2010 Employee Termination Costs Performance-Based Restricted Stock Units Biovail	Dec. 31, 2010 Employee Termination Costs Stock options and time-based RSUs	Dec. 31, 2011 Employee Termination Costs - Severance and Related Benefits	Dec. 31, 2010 Employee Termination Costs - Severance and Related Benefits	Dec. 31, 2011 Employee Termination Costs - Share-Based Compensation	Dec. 31, 2010 Employee Termination Costs - Share-Based Compensation	Dec. 31, 2010 IPR&D Termination Costs	Dec. 31, 2011 Contract Termination, Facility Closure and Other Costs	Dec. 31, 2010 Contract Termination, Facility Closure and Other Costs
Restructuring reserve
Balance at the beginning of the period	$ 26,459,000										$ 24,789,000					$ 1,670,000
Costs incurred and charged to expense	46,941,000	134,821,000									14,548,000	58,727,000	3,455,000	49,482,000	13,750,000	28,938,000	12,862,000
Cash payments	(55,582,000)	(56,443,000)									(38,168,000)	(33,938,000)	(2,033,000)		(13,750,000)	(15,381,000)	(8,755,000)
Non-cash adjustments	(4,665,000)	(51,919,000)									989,000		(741,000)	(49,482,000)		(4,913,000)	(2,437,000)
Balance at the end of the period	13,153,000	26,459,000									2,158,000	24,789,000	681,000			10,314,000	1,670,000
Integration-related costs incurred																50,900,000
Approximate number of employees expected to be terminated		500
Restructuring and related costs, cash payments to date											72,100,000
Integration-related costs paid																37,500,000
Recognized incremental share-based compensation expense
Incremental fair value of the modified awards				15,400,000	3,500,000	49,482,000	9,622,000	(492,000)	20,287,000	20,065,000
Upfront payment received for sale of IPR&D			$ 200,000