Income Taxes - Reconciliation of Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income Taxes at U.S Statutory Rate	$ 77,286	$ 28,656	$ (69,500)
State Income Taxes, Net of Federal Tax Benefits	2,975	(306)	859
US Income Tax Provided On International Income	1,010	10,273	2,364
Combined Tax Effects of International Income	(9,333)	(11,530)	(25,469)
Impact of goodwill impairment charges	0	0	6,439
Impact of divestiture	0	0	27,790
Change in valuation allowance and other uncertain tax positions	(90,817)	5,163	84,530
Impact of Domestic Production Activities Deduction	0	0	(2,072)
Research and Development Credit	(3,141)	(1,895)	(4,351)
Change In Permanent Reinvestment Assertion	0	0	3,659
Combined effects of tax reform	86,044	0	0
Adjustment to deferred tax charges on intra-entity transfers	5,297	0	0
Other	660	(466)	1,064
Provision for income taxes	$ 69,981	$ 29,895	$ 25,313