Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash Flows From Operating Activities
Net loss	$ (9,926)	$ (13,026)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	4,655	4,559
Share-based compensation	3,473	2,514
Amortization of debt issuance costs	403	403
Amortization and accretion of discount and premium on investments	41	270
Accretion of interest on debt	816	1,920
Recovery of (provision for) bad debt, net	(27)	36
Provision for write-down of inventories	303	424
Loss on disposal of property and equipment		8
Changes in assets and liabilities:
Restricted cash	421
Accounts receivable	166	20,902
Inventories	(1,517)	(7,193)
Prepaid expenses and other assets	1,547	(65)
Deferred cost of revenue	57	(704)
Accounts payable	1,768	710
Accrued liabilities	(4,985)	(13)
Customer advances	(926)	3,609
Deferred revenue	(2,619)	(2,098)
Net cash provided by (used in) operating activities	(6,350)	12,256
Cash Flows From Investing Activities
Purchases of property and equipment, net	(1,299)	(1,544)
Purchases of investments	(8,992)	(15,439)
Sales and maturities of investments	15,382	12,000
Net cash (used in) provided by investing activities	5,091	(4,983)
Cash Flows From Financing Activities
Proceeds from employee stock plans	1,227	1,034
Taxes paid related to net share settlement of equity awards	(99)	(1,060)
Payments made to note holders	(36,608)
Net cash used in financing activities	(35,480)	(26)
Effect of exchange rate changes on cash and cash equivalents	584	(1,214)
Net (decrease) increase in cash and cash equivalents	(36,155)	6,033
Cash and cash equivalents at beginning of period	119,771	79,551
Cash and cash equivalents at end of period	$ 83,616	$ 85,584