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Balance Sheet Components - Accrued liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Balance Sheet Related Disclosures [Abstract]
Accrued compensation and benefits	$ 16,385	$ 18,484
Warranty accrual	623	535	$ 1,866	$ 1,495
Stock rotation accrual	1,921	1,750	$ 1,871	$ 1,988
Accrued professional fees	1,721	1,922
Accrued inventory	857	667
Accrued facilities related expenses	4,233	2,163
Accrued financing lease costs	728	1,510
Accrued property, plant and equipment	11,527	18,145
Other accrued expenses	6,080	4,665
Accrued liabilities	$ 44,075	$ 49,841

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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-Section S99
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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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