Facility Lease Obligation (Details)			3 Months Ended		9 Months Ended
	Mar. 10, 2016 USD ($)	Jul. 17, 2015 USD ($) a ft² option	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)
Operating Leased Assets [Line Items]
Area of Real Estate Property | ft²		538,000
Operating Leases, Rent Expense, Minimum Rentals	$ 56,600,000	$ 49,600,000
Other receivables			$ 2,714,000		$ 2,714,000		$ 2,021,000
Lessee Leasing Arrangements, Operating Leases, Purchase Option, Estimated Purchase Price	58,600,000
Lessee Leasing Arrangements, Operating Leases, Purchase Option, Contingency Amount	$ 2,700,000
Base rent, annual					4,200,000
Stream Realty Partners-DFW, L.P. [Member] | DMA [Member]
Operating Leased Assets [Line Items]
Development fee (percent)		3.25%
Oversight fee (percent)		2.00%
Professional Fees		$ 2,600,000
Northlake, Texas [Member]
Operating Leased Assets [Line Items]
Property, Plant and Equipment, Additions			19,200,000
Northlake, Texas [Member]
Operating Leased Assets [Line Items]
Area of land (in acres) | a		28.2
Rent expense			67,000	$ 0	200,000	$ 0
Period of purchase option prior to completion		90 days
Purchase price based on amount of total costs (percent)	103.50%	103.00%
Per month increase in purchase price upon completion (percent)		0.35%
Purchase option after completion		90 days
Term of contract		15 years
Number of renewal options (in options) | option		6
Renewal term		5 years
Base rent (percent)		7.50%
Annual increase in base rent (percent)		2.00%
Northlake, Texas [Member] | Other Long Term Liabilities [Member]
Operating Leased Assets [Line Items]
Other receivables			19,200,000		19,200,000		0
Northlake, Texas [Member] | Other Receivables [Member]
Operating Leased Assets [Line Items]
Loans and Leases Receivable, Gross, Other			$ 0		$ 0		$ 300,000
Minimum [Member] | Northlake, Texas [Member]
Operating Leased Assets [Line Items]
Estimated Development and Construction Costs	$ 55,000,000
Payments to Acquire Machinery and Equipment, Expected Cost	35,000,000
Maximum [Member] | Northlake, Texas [Member]
Operating Leased Assets [Line Items]
Estimated Development and Construction Costs	60,000,000
Payments to Acquire Machinery and Equipment, Expected Cost	$ 39,000,000