Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Jun. 30, 2017
Inventories [Abstract]
Total inventories	$ 106,195	$ 99,397
Raw materials, net of reserves	14,352	15,043
Work in process and finished parts, net of reserves	7,546	7,047
Finished goods, net of reserves	$ 84,297	$ 77,307