Investments - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Jan. 31, 2018	Oct. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Cash, cash equivalents and short-term investments
Proceeds from Sale of Available-for-sale Securities, Debt	$ 23,900
Unrealized gain on investments			$ 319	$ (6)	$ 443	$ (76)
Technology Company
Cash, cash equivalents and short-term investments
Unrealized gain on investments					300
Technology Company | Common Stock
Cash, cash equivalents and short-term investments
Investment owned, shares		143,000
Shares lock-up period		6 months
Shares lock-up expiration date		2018-04
Investment owned, fail value			$ 900		900
Other expense, net
Cash, cash equivalents and short-term investments
Available for sale securities, reclassified from other comprehensive income to other expense, net					$ 77