Par Sterile Acquisition - Additional Information (Details) (Par Sterile [Member], USD $)	0 Months Ended	10 Months Ended
	Feb. 20, 2014	Dec. 31, 2014	Feb. 20, 2014 product
Business Acquisition [Line Items]
Cash paid for equity	$ 487,000,000
Sponsor equity contribution	110,000,000
Number of specialty injectable products acquired	14		14
Number of products acquired	30		30
Number of products acquired with US FDA approval	17		17
Revenue of acquiree since acquisition date		140,300,000
Transaction costs	12,350,000		12,350,000
Investment bank fees	10,400,000		10,400,000
Legal fees	1,500,000		1,500,000
Other fees	500,000		500,000
Expected tax deductible amount		20,000,000
Intangible assets	283,500,000		283,500,000
Inventories	35,959,000		35,959,000
Scenario, Adjustment [Member]
Business Acquisition [Line Items]
Intangible assets	205,100,000		205,100,000
Inventories	9,000,000		9,000,000
Other Noncurrent Assets [Member]
Business Acquisition [Line Items]
Transaction costs	4,100,000		4,100,000
Selling, General and Administrative Expenses [Member]
Business Acquisition [Line Items]
Transaction costs	8,200,000	8,200,000	8,200,000
Senior Secured Term Loan [Member]
Business Acquisition [Line Items]
Senior secured term loan	$ 395,000,000		$ 395,000,000