Related Party Transactions (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		1 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Sep. 30, 2009	Nov. 30, 2009	Dec. 31, 2014
Class B common stock
Related Party Transactions
Preferred stock conversion basis	1
Law firm investor | Maximum
Related Party Transactions
Legal fees paid	0.1	$ 0.1
Accounts payable	0.1				0.1
Actavis Plc
Related Party Transactions
Accounts receivable	33.0				25.8
Actavis Plc | Convertible preferred stock (Note 11)
Related Party Transactions
Issuance of Convertible preferred stock (in shares)			2,083,333
Almirall, S.A. | Maximum
Related Party Transactions
Accounts receivable	0.1
Almirall, S.A. | Convertible preferred stock (Note 11)
Related Party Transactions
Issuance of Convertible preferred stock (in shares)				681,819