Property, Plant and Equipment, net (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021
Property, Plant and Equipment, net
Less: accumulated depreciation	$ (128,801)		$ (123,294)
Property, plant and equipment, net before construction in progress	148,598		151,587
Property, plant and equipment, net	164,154		166,674
Depreciation expense	5,600	$ 5,800
Held in foreign countries
Property, Plant and Equipment, net
Property, plant and equipment, net	600		600
Land
Property, Plant and Equipment, net
Property, plant and equipment, gross	1,783		1,783
Building and improvements
Property, Plant and Equipment, net
Property, plant and equipment, gross	105,187		103,082
Machinery and equipment
Property, Plant and Equipment, net
Property, plant and equipment, gross	166,894		166,617
Furniture and fixtures
Property, Plant and Equipment, net
Property, plant and equipment, gross	3,535		3,399
Construction in progress
Property, Plant and Equipment, net
Property, plant and equipment, net	$ 15,556		$ 15,087