Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Operating Loss Carryforwards [Line Items]
Cash paid for income taxes, net of refunds	$ 24,284	$ (2,900)	$ 44,225
Provisional income tax expense	25,006
Tax expense transition tax on the foreign subsidiaries’ accumulated, unremitted earnings	7,054
Tax credit carry forwards	877	877
Undistributed earnings of foreign subsidiaries	32,967
Valuation allowances	14,969	14,850	15,310
Unrecognized tax benefits	6,730	11,602	16,019	$ 10,759
Unrecognized tax benefits that would impact effective tax rate	2,917	6,409	$ 10,826
Interest and penalties, accrued	82	460
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	23,057	25,144
Foreign
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 30,065	$ 43,306