Property Plant and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, gross	$ 730,460	$ 559,362
Less accumulated depreciation	(362,732)	(316,505)
Property, Plant and Equipment, net	367,728	242,857
Land and Land Improvements
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, gross	5,667	4,990
Buildings and Improvements
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, gross	144,293	110,219
Machinery and Equipment
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, gross	492,042	409,551
Construction in Progress
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, gross	$ 88,458	$ 34,602