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Balance Sheet Components - Property, plant, and equipment (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Property, Plant and Equipment [Line Items] |  |  |
Property, plant, and equipment excluding equipment and construction In progress, gross | $ 655,263 | $ 465,219 |
Less accumulated depreciation | (291,515) | (252,982) |
Property, plant and equipment excluding equipment and construction in progress, net | 363,748 | 212,237 |
Equipment and construction in progress | 48,592 | 197,500 |
Property, plant and equipment, net | 412,340 | 409,737 |
Depreciation expense | 43,900 | 31,900 | $ 29,200
Capitalized software development costs | 1,000 | 800 | 300
Capitalized Computer Software, Amortization | 500 | 500 | $ 600
Unamortized capitalized software development costs | 1,400 | 900 |
Land |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant, and equipment excluding equipment and construction In progress, gross | 4,877 | 4,877 |
Building |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant, and equipment excluding equipment and construction In progress, gross | 58,875 | 36,205 |
Manufacturing machinery and equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant, and equipment excluding equipment and construction In progress, gross | 447,079 | 303,750 |
Equipment and tooling |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant, and equipment excluding equipment and construction In progress, gross | 25,398 | 20,739 |
Computer equipment and software |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant, and equipment excluding equipment and construction In progress, gross | 38,779 | 34,048 |
Office furniture and equipment |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant, and equipment excluding equipment and construction In progress, gross | 3,529 | 3,243 |
Leasehold improvements |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant, and equipment excluding equipment and construction In progress, gross | 68,224 | 53,597 |
Land use rights |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Property, plant, and equipment excluding equipment and construction In progress, gross | 8,502 | 8,760 |
Computer software |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Gross amount of computer software recorded under capital lease | 13,700 | 13,700 |
Accumulated depreciation on computer software recorded under capital lease | $ 10,100 | $ 8,200 |

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121569800&loc=d3e45014-112735 + Details
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