Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014 segment	Jun. 30, 2013	Jun. 30, 2012
Ownership Percentage	100.00%								100.00%
Number of reportable segments (segments)									3
Net revenue	$ 519.6	$ 453.1	$ 440.7	$ 414.3	$ 505.2	$ 447.0	$ 436.1	$ 412.0	$ 1,827.7	$ 1,800.3	$ 1,694.8
Customer Concentration Risk [Member] | Accounts Receivable [Member]
Concentration Risk, Number of Customers									0	0
Customer Concentration Risk [Member] | Sales [Member]
Concentration Risk, Number of Customers									0	0
Oral Technologies [Member]
Net revenue									1,180.1	1,186.3	1,220.2
Intra Segment Revenue Elimination									35.6
Oral Technologies [Member] | Softgel Technologies [Member]
Net revenue									857.5
Oral Technologies [Member] | Modified Release Technologies [Member]
Net revenue									$ 358.2