Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 555,800	$ 519,306
Less: Accumulated depreciation	245,628	227,440
Property, plant and equipment, net	310,172	291,866
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	28,378	28,092
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	83,289	83,648
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	323,348	300,750
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	54,092	50,773
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	17,894	15,613
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	31,519	29,296
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 17,280	$ 11,134