Related Party Transactions (Narrative) (Detail) $ in Thousands	12 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Oct. 31, 2017 ft²
Joint Venture
Related Party Transaction [Line Items]
Inventory purchases	$ 3,556	$ 3,236	$ 2,831
Rising Health
Related Party Transaction [Line Items]
Amount of cost incurred	2,636	1,865
Gross area of warehouse space expected to lease | ft²				125,000
Acetris Health
Related Party Transaction [Line Items]
Amount of cost incurred	$ 305	$ 165