Segment Information - Total Assets for Each Segment and Reconciling in Consolidated Financial Statements (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Jun. 30, 2016
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 3,285.2	$ 3,091.1
Softgel Technologies [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,590.7	1,446.4
Drug Delivery Solutions [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,560.7	1,475.7
Clinical Supply Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	595.4	578.9
Corporate and Eliminations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ (461.6)	$ (409.9)