Revenues (Schedule of Effect of Adoption of ASU 2014-09 On Consolidated Statement of Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net loss	$ (46,792)	$ (1,744)	$ (36,363)
Changes in operating assets and liabilities, net
Accounts receivable	(69,518)	(13,951)	626
Inventories	17,343	7,413	18,196
Prepaid expenses and other assets	(8,014)	7,717	(806)
Other current and long-term liabilities	2,025	5,730	(3,339)
Net cash provided by operating activities	19,043	59,283	30,366
Net cash used in investing activities	(132,471)	(71,752)	(5,327)
Net cash provided by (used in) financing activities	104,746	48,708	(6,738)
Foreign currency effect on cash	(629)	89	(404)
Net increase in cash and cash equivalents	$ (9,311)	36,328	17,897
As Reported | ASU 2014-09
Cash flows from operating activities:
Net loss		(8,517)	(31,884)
Changes in operating assets and liabilities, net
Accounts receivable		(25,050)	10,178
Inventories		8,587	17,025
Prepaid expenses and other assets		8,018	100
Deferred distributors revenue, net of cost of sales to distributors		16,708	(14,058)
Other current and long-term liabilities		5,419	(3,047)
Net cash provided by operating activities		59,283	30,366
Net cash used in investing activities		(71,752)	(5,327)
Net cash provided by (used in) financing activities		48,708	(6,738)
Foreign currency effect on cash		89	(404)
Net increase in cash and cash equivalents		36,328	17,897
Adjustment | ASU 2014-09
Cash flows from operating activities:
Net loss		6,773	(4,479)
Changes in operating assets and liabilities, net
Accounts receivable		11,099	(9,552)
Inventories		(1,174)	1,171
Prepaid expenses and other assets		(301)	(906)
Deferred distributors revenue, net of cost of sales to distributors		(16,708)	14,058
Other current and long-term liabilities		$ 311	$ (292)