Property, Plant and Equipment, net (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Property, Plant and Equipment, net
Less: accumulated depreciation	$ (93,999)				$ (93,999)		$ (83,424)
Property, plant and equipment, net before construction in progress	170,226				170,226		165,239
Property, plant and equipment, net	183,631				183,631		186,670
Depreciation expense	5,900		$ 5,700		11,700	$ 12,200
Assets held for sale	3,757				3,757		9,671
Disposal group held for sale
Property, Plant and Equipment, net
Impairment of long-lived assets				$ 29,900
Proceeds from divestiture of businesses		$ 2,000
Property, plant and equipment, held for sale	3,800				3,800		6,700
Held in foreign countries
Property, Plant and Equipment, net
Property, plant and equipment, net	700				700		1,000
Land
Property, Plant and Equipment, net
Property, plant and equipment, gross	1,783				1,783		1,783
Building and improvements
Property, Plant and Equipment, net
Property, plant and equipment, gross	95,032				95,032		87,609
Machinery and equipment
Property, Plant and Equipment, net
Property, plant and equipment, gross	164,300				164,300		156,166
Furniture and fixtures
Property, Plant and Equipment, net
Property, plant and equipment, gross	3,110				3,110		3,105
Construction in progress
Property, Plant and Equipment, net
Property, plant and equipment, net	$ 13,405				$ 13,405		$ 21,431