Income Taxes (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Difference between expected income tax provision applying domestic federal statutory tax rate and reported income tax provision
Expected provision for Federal income taxes at the statutory rate	$ 13,879	$ 2,868	$ 19,887
State income taxes, net of Federal benefit	1,827	1,023	2,275
Deemed foreign dividends	0	1,462	0
Charges without tax benefit	2,187	1,478	1,405
Change in valuation allowance	311	25	0
IRS S199 deduction	(999)	0	(1,546)
Foreign tax credits	0	(1,433)	0
Research and development and other tax credits	(1,928)	(1,197)	(1,793)
Foreign tax differential	(815)	(529)	(182)
Noncontrolling interest	1,164	6,669	(374)
Change in uncertain tax positions	(569)	0	0
Adjustment to tax accounts	(786)	0	0
Other	(155)	(276)	262
Provision for income taxes	$ 14,116	$ 10,090	$ 19,934