v2.4.1.9

MATERIAL RELATED PARTY DISCLOSURE (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
G.M.I. Technology Inc. [Member]
Related Party Transaction [Line Items]
Related party transactions, net sales from related party	$ 9,211us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember	$ 4,639us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember	$ 1,794us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember
Due from related party	1,650us-gaap_DueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember	1,301us-gaap_DueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember
Beijing Actions [Member]
Related Party Transaction [Line Items]
Due from related party	41us-gaap_DueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_EquityMethodInvesteeMember	38us-gaap_DueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_EquityMethodInvesteeMember
Realtek Semiconductor Corporation [Member]
Related Party Transaction [Line Items]
Related party transactions, net purchase from related party	817us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = acts_RealtekSemiconductorCorporationMember
Due to related party	$ 259us-gaap_DueToRelatedPartiesCurrentAndNoncurrent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = acts_RealtekSemiconductorCorporationMember

X

- Definition

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

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X

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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