Schedule II - Valuation and Qualifying Accounts - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Balance at Beginning of Period		$ 1,519	$ 1,824	$ 2,183
Charged to Costs and Expenses		280	127	237
Deductions	[1]	321	432	596
Balance at End of Period		1,478	1,519	1,824
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
Balance at Beginning of Period		3,803	3,123	3,577
Charged to Costs and Expenses			826	257
Deductions	[1]	3,803	146	711
Balance at End of Period			$ 3,803	$ 3,123

[1] Activity primarily represents amounts written-off during the year, along with other adjustments (primarily foreign currency translation adjustments).