Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Mar. 31, 2018	Jun. 30, 2017
Changes in the carrying amount of goodwill
Balance at the beginning of the period	$ 57,812	$ 57,848
Currency translation	209	(36)
Balance at the end of the period	$ 58,021	$ 57,812