Property Plant and Equipment (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Property Plant And Equipment [Abstract]
Land and land improvements	$ 4,566	$ 2,381
Buildings and improvements	91,171	96,551
Machinery and equipment	366,560	335,408
Construction in progress	17,749	16,990
Property, Plant and Equipment, gross	480,046	451,330
Less accumulated depreciation	(276,234)	(242,391)
Property, Plant and Equipment, net	$ 203,812	$ 208,939