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Balance Sheet Components (Tables) | 3 Months Ended
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Sep. 30, 2018
Balance Sheet Related Disclosures [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable | Accounts receivable, net:
| September 30, 2018 |  | June 30, 2018
| (in thousands)
Accounts receivable | $ | 55,290 |  |  | $ | 52,687 |
Less: Allowance for price adjustments | (18,152 | ) |  | (18,902 | )
Less: Allowance for doubtful accounts | (30 | ) |  | (30 | )
Accounts receivable, net | $ | 37,108 |  |  | $ | 33,755 |
Schedule of Inventory, Current | Inventories:
| September 30, 2018 |  | June 30, 2018
| (in thousands)
Raw materials | $ | 51,854 |  |  | $ | 47,097 |
Work in-process | 39,296 |  |  | 35,243 |
Finished goods | 6,899 |  |  | 7,842 |
| $ | 98,049 |  |  | $ | 90,182 |
Other Current Assets | Other current assets:
| September 30, 2018 |  | June 30, 2018
| (in thousands)
VAT receivable | $ | 25,722 |  |  | $ | 17,601 |
Other prepaid expenses | 2,417 |  |  | 2,121 |
Prepaid insurance | 1,109 |  |  | 906 |
Prepaid maintenance | 685 |  |  | 556 |
Prepayment to supplier | 735 |  |  | 227 |
Prepaid income tax | 761 |  |  | 761 |
Custom deposit | 26 |  |  | 5,749 |
Lease financing cost | 910 |  |  | 960 |
Other receivable | 390 |  |  | 670 |
| $ | 32,755 |  |  | $ | 29,551 |
Property, Plant and Equipment | operty, plant and equipment, net:
| September 30, 2018 |  | June 30, 2018
| (in thousands)
Land | $ | 4,877 |  |  | $ | 4,877 |
Building | 33,836 |  |  | 4,325 |
Manufacturing machinery and equipment | 274,818 |  |  | 265,192 |
Equipment and tooling | 17,891 |  |  | 16,605 |
Computer equipment and software | 26,751 |  |  | 25,686 |
Office furniture and equipment | 2,318 |  |  | 2,314 |
Leasehold improvements | 30,499 |  |  | 29,900 |
Land use rights | 8,750 |  |  | 9,089 |
| 399,740 |  |  | 357,988 |
Less: accumulated depreciation | (229,627 | ) |  | (225,184 | )
| 170,113 |  |  | 132,804 |
Equipment and construction in progress | 198,436 |  |  | 198,852 |
Property, plant and equipment, net | $ | 368,549 |  |  | $ | 331,656 |
Intangible Assets Disclosure | Intangible assets, net:
| September 30, 2018 |  | June 30, 2018
| (in thousands)
Patents and technology rights | $ | 17,637 |  |  | $ | 17,633 |
Trade name | 268 |  |  | 268 |
Customer relationships | 1,150 |  |  | 1,150 |
| 19,055 |  |  | 19,051 |
Less: accumulated amortization | (2,757 | ) |  | (2,729 | )
| 16,298 |  |  | 16,322 |
Goodwill | 269 |  |  | 269 |
Intangible assets, net | $ | 16,567 |  |  | $ | 16,591 |
Schedule of Other Assets, Noncurrent | Other long-term assets:
| September 30, 2018 |  | June 30, 2018
| (in thousands)
Prepayments for property and equipment | $ | 5,844 |  |  | $ | 17,599 |
Investment in a privately held company | 700 |  |  | 700 |
Lease financing costs | 1,630 |  |  | 1,922 |
VAT long-term receivable | 478 |  |  | 3,396 |
Custom deposit | 1,766 |  |  | 1,589 |
Other long-term deposits | 1,983 |  |  | 2,252 |
Office leases deposits | 981 |  |  | 853 |
Other | 315 |  |  | 387 |
| $ | 13,697 |  |  | $ | 28,698 |
Schedule of Accrued Liabilities | Accrued liabilities:
| September 30, 2018 |  | June 30, 2018
| (in thousands)
Accrued compensation and benefits | $ | 23,674 |  |  | $ | 18,484 |
Warranty accrual | 632 |  |  | 535 |
Stock rotation accrual | 1,775 |  |  | 1,750 |
Accrued professional fees | 1,860 |  |  | 1,922 |
Accrued inventory | 640 |  |  | 667 |
Accrued facilities related expenses | 3,446 |  |  | 2,163 |
Accrued financing lease costs | 1,454 |  |  | 1,510 |
Accrued property, plant and equipment | 15,038 |  |  | 18,145 |
Other accrued expenses | 7,535 |  |  | 4,665 |
| $ | 56,054 |  |  | $ | 49,841 |
Schedule of Product Warranty Liability | The activities in the warranty accrual, included in accrued liabilities, are as follows:
| Three Months Ended September 30,
| 2018 |  | 2017
| (in thousands)
Beginning balance | $ | 535 |  |  | $ | 1,866 |
Additions (reductions) | 136 |  |  | (237 | )
Utilization | (39 | ) |  | (7 | )
Ending balance | $ | 632 |  |  | $ | 1,622 |
Stock Rotation Accrual | The activities in the stock rotation accrual, included in accrued liabilities, are as follows:
| Three Months Ended September 30,
| 2018 |  | 2017
| (in thousands)
Beginning balance | $ | 1,750 |  |  | $ | 1,871 |
Additions | 748 |  |  | 791 |
Utilization | (723 | ) |  | (668 | )
Ending balance | $ | 1,775 |  |  | $ | 1,994 |

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