New Facility (Details) - USD ($) $ in Thousands					3 Months Ended	12 Months Ended
		Sep. 17, 2016	Sep. 15, 2016	Jul. 15, 2016	Jun. 30, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Operating Leased Assets [Line Items]
Purchases of property, plant and equipment			$ 42,500			$ 45,195	$ 31,050	$ 19,216
Purchase option, estimated purchase price			$ 42,000		$ 4,439	4,439
Build to suit liability					0	0	$ 28,110
Northlake, Texas | Building [Member]
Operating Leased Assets [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed	[1]				1,600	1,600
Northlake, Texas | Machinery and Equipment
Operating Leased Assets [Line Items]
Purchases of property, plant and equipment						33,200
Purchase Commitment, Remaining Minimum Amount Committed	[1]				2,800	2,800
Maximum | Northlake, Texas
Operating Leased Assets [Line Items]
Expected construction costs						60,000
Payments made to date						60,800
Expected costs for machinery and equipment, furniture and fixtures and related expenditures						39,000
Minimum | Northlake, Texas
Operating Leased Assets [Line Items]
Expected costs for machinery and equipment, furniture and fixtures and related expenditures						35,000
Capital Addition Purchase Commitments [Member]
Operating Leased Assets [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed					2,800	2,800
Development Management Agreement [Member] | Northlake, Texas | Building [Member]
Operating Leased Assets [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed	[1]				400	400
Development Management Agreement [Member] | Maximum
Operating Leased Assets [Line Items]
Maximum construction costs				$ 4,000
Amended Building Contract [Member]
Operating Leased Assets [Line Items]
Maximum construction costs					600
Payments made to date						20,300
Amended Building Contract [Member] | Northlake, Texas | Machinery and Equipment
Operating Leased Assets [Line Items]
Purchase Commitment, Remaining Minimum Amount Committed	[1]				$ 2,200	$ 2,200
Amended Building Contract [Member] | Maximum
Operating Leased Assets [Line Items]
Maximum construction costs		$ 21,900

[1] Includes $1.6 million in outstanding contractual obligations for the construction of the New Facility including $0.4 million outstanding under the DMA (see Note 5) and $2.8 million in outstanding contractual obligations for the purchase of machinery and equipment for the New Facility, including $2.2 million under the Amended Building Contract. See Note 5.