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Segment and Geographic Information - Long-lived Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Jun. 30, 2021
--- | --- | ---
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Property, plant and equipment, net and land use rights, net | $ 270,741 | $ 471,637
China |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Property, plant and equipment, net and land use rights, net | 96,679 | 350,387
United States |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Property, plant and equipment, net and land use rights, net | 170,213 | 118,756
Other countries |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Property, plant and equipment, net and land use rights, net | $ 3,849 | $ 2,494

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- Definition Property, plant and equipment, net and land use rights, net + References No definition available. + Details
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Namespace Prefix: | aosl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_StatementGeographicalAxis=aosl_OtherCountriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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