Income Taxes (Components Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Income Taxes [Abstract]
Employee liabilities	$ 18,104	$ 16,184
Tax credit carry overs	15,666	9,031
Inventories	4,905	5,840
Provision for warranties	3,551	3,904
Provision for doubtful debts	5,532	3,817
Net operating loss carryforwards	53,315	26,355
Capital loss carryover	6,640	3,932
Property, plant and equipment	3,002	6,121
Stock-based compensation expense	10,769	9,322
Deferred revenue	9,619	1,148
Research and development capitalization	17,910
Other	(332)	3,367
Deferred tax assets, Gross	148,681	89,021
Less valuation allowance	(11,644)	(12,297)
Deferred tax assets	137,037	76,724
Goodwill and other intangibles	(102,939)	(35,990)
Deferred tax liabilities	(102,939)	(35,990)
Net deferred tax asset	$ 34,098	$ 40,734