Acquisitions Pro Forma Narrative (Details) - Houston Interests, LLC [Member] $ in Millions	9 Months Ended
Mar. 31, 2017 USD ($)
Business Acquisition [Line Items]
Pro forma acquisition costs	$ 1.1
Pro forma interest expense	0.7
Pro forma depreciation and amortization expense	0.8
Pro forma income tax expense	$ 4.3

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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