Property Plant and Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021
Property, Plant and Equipment [Line Items]
Finance lease right-of-use asset	$ 25,000	$ 25,000
Property, plant, and equipment and finance lease right-of-use asset, before accumulated depreciation	2,135,179	2,084,338
Less accumulated depreciation	(893,086)	(841,432)
Property, plant, and equipment, net	1,242,093	1,242,906
Land and Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	20,263	20,454
Buildings and Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	420,313	419,157
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,521,265	1,483,183
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 148,338	$ 136,544