Income Taxes (Detail Textuals) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Valuation Allowance [Line Items]
Deferred income taxes	$ (22,244)	$ 4,761	$ 1,289
Undistributed earnings of foreign subsidiaries	176,281
Recognized interest and penalties in the consolidated statements of operations	(980)	66	(661)
Uncertain tax positions result of the lapse of the statute of limitations	3,700	907	5,157
Uncertain tax positions reversal in future period	658
Additional income taxes payable after settlement			2,614
Reduction in income tax provision			572
Reduction in previously unrecognized tax benefits			2,215
Unrecognized tax benefits	4,946	$ 8,078	7,420	$ 12,261
Employee Stock Option
Valuation Allowance [Line Items]
Deferred income taxes	3,520
Domestic Jurisdiction
Valuation Allowance [Line Items]
Net operating loss carry forwards	33,302
State Jurisdiction
Valuation Allowance [Line Items]
Net operating loss carry forwards	42,895
Foreign Jurisdiction
Valuation Allowance [Line Items]
Undistributed earnings of foreign subsidiaries not reinvested			25,000
Amount of foreign withholding tax			$ 3,160
Net operating loss carry forwards	$ 13,243