XML 38 R27.htm IDEA: XBRL DOCUMENT v3.10.0.1

The Company and Significant Accounting Policies - Joint Venture (Details) - Facility in Liangjiang New Area of Chongqing (the 'Joint Venture') - USD ($) $ in Millions		1 Months Ended
	Sep. 30, 2018	Aug. 31, 2018	Mar. 29, 2016
Consideration Transferred to Acquire Interest in Joint Venture		$ 25.0
Parent Company
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions	54.40%	54.40%
Chongqing Funds
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions	45.60%	45.60%
Corporate Joint Venture
Initial capitalization of joint venture			$ 330.0

X

- Definition

Consideration Transferred to Acquire Interest in Joint Venture

+ References

No definition available.

+ Details

Name:	aosl_ConsiderationTransferredtoAcquireInterestinJointVenture
Namespace Prefix:	aosl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Initial Capitalization

+ References

No definition available.

+ Details

Name:	aosl_InitialCapitalization
Namespace Prefix:	aosl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=aosl_FacilityinLiangjiangNewAreaofChongqingtheJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ConsolidatedEntitiesAxis=us-gaap_ParentCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=aosl_ChongqingFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: