Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net loss	$ (8,517)	$ (31,884)	$ (71,643)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	10,618	10,802	12,832
Amortization of intangible assets	15,722	32,370	35,951
Provision for doubtful accounts and allowance for returns	335	1,140	4,246
Stock-based compensation	12,633	14,792	17,801
Non-cash restructuring and related charges	1,031	4,463
Other non-cash charges	3,334	1,020	2,323
Changes in operating assets and liabilities, net
Accounts receivable	(25,050)	10,178	27,681
Inventories	8,587	17,025	(904)
Prepaid expenses and other assets	8,018	100	(2,240)
Accounts payable	2,064	(9,562)	2,827
Accrued compensation and benefits	13,058	1,949	(1,482)
Deferred revenue	(4,677)	(4,922)	2,104
Deferred distributor revenue, net of cost of sales	16,708	(14,058)	8,883
Other current and long term liabilities	5,419	(3,047)	(956)
Net cash provided by operating activities	59,283	30,366	37,423
Cash flows from investing activities:
Capital expenditures	(10,425)	(5,327)	(7,205)
Acquisition	(51,088)
Deposits related to future acquisition	(10,239)
Purchases of non-marketable equity investment			(3,000)
Proceeds from maturities of investments and marketable securities			23,321
Proceeds from sales of investments and marketable securities			9,051
Purchases of intangible assets			(569)
Net cash (used in) provided by investing activities	(71,752)	(5,327)	21,598
Cash flows from financing activities:
Borrowings under Revolving Facility		15,000	24,000
Borrowings under Term Loan	48,250
Repayment of debt	(10,038)	(26,375)	(78,688)
Loan fees on borrowings	(1,326)
Proceeds from issuance of common stock	11,822	4,637	2,218
Net cash provided by (used in) financing activities	48,708	(6,738)	(52,470)
Foreign currency effect on cash	89	(404)	(3,516)
Net increase in cash and cash equivalents	36,328	17,897	3,035
Cash and cash equivalents at beginning of period	94,122	76,225	73,190
Cash and cash equivalents at end of period	130,450	94,122	76,225
Supplemental disclosure of cash flow information:
Cash paid for interest	3,013	2,613	2,361
Cash paid for taxes, net	2,514	2,355	1,582
Non-cash investing activities:
Unpaid capital expenditures	$ 1,122	$ 741	$ 316