Fair Value Measurements (Narrative) (Detail) - USD ($) $ in Thousands	1 Months Ended			9 Months Ended
	Nov. 30, 2015	Apr. 30, 2014	Mar. 31, 2011	Mar. 31, 2016	Mar. 31, 2015	Jun. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Termination payment of interest rate swap agreement	$ 420
Aggregate proceeds from convertible senior notes				$ 143,750
Convertible Senior Notes, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate proceeds from convertible senior notes	$ 143,750
Theoretical borrowing rate	6.50%
Reduction to capital in excess of par value	$ 13,489
Rising Pharmaceuticals Inc.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration at fair value						$ 1,480
PACK Pharmaceuticals, LLC
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration at fair value				0		783
France Company
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration at fair value				133		$ 359
Foreign currency contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, notional amount				56,185
Unrealized gains (losses) on hedging activities				$ 226	$ (2,517)
Interest rate swap | Cash flow hedging | April 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, notional amount		$ 25,750
Derivative, interest rate		1.63%
Derivative, expiration date		Apr. 30, 2019
Interest rate swap | Cash flow hedging | December 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, notional amount			$ 20,000
Derivative, interest rate			1.91%
Derivative, expiration date			Dec. 31, 2015