PROPOSED TRANSACTIONS (Details) (USD $)		3 Months Ended	9 Months Ended				0 Months Ended	9 Months Ended
	May 30, 2014 Letter of Credit	Sep. 30, 2014 PS Fund 1, LLC	Sep. 30, 2014 PS Fund 1, LLC	Apr. 30, 2014 PS Fund 1, LLC	Jun. 18, 2014 Allergan	May 30, 2014 Allergan	May 30, 2014 Allergan Common Stock	Sep. 30, 2014 Allergan PS Fund 1, LLC Common Stock	Dec. 18, 2014 Subsequent Event nominee member
Subsequent events
Expected per share consideration (in dollars per share)						$ 72.00
Expected shares exchanged per transaction						0.83
Equity Method Investment				$ 75,900,000
Exchange of common stock, number of shares allocable								597,431
Exchange of common stock, number of shares held								28,878,538
Unrealized gain on equity method investment, pre-tax		5,400,000	30,600,000
Exchange of common stock related to proposed merger (in shares)							28,281,107
Exchange of common stock, exchange rate							1.22659
Proposed business acquisition, per share consideration (in dollars per share)					$ 72.00
Proposed business acquisition, shares exchanged per transaction					0.83
Line of credit facility, capacity available for acquisition cash consideration	$ 20,350,000,000
Number of board members									6
Number of nominees									6