v3.4.0.3

MAINLAND CHINA PROFIT APPROPRIATION AND RESTRICTION ON CAPITAL REPATRIATION (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014
MAINLAND CHINA PROFIT APPROPRIATION AND RESTRICTION ON CAPITAL REPATRIATION [Abstract] |  |
Minimum annual appropriations to general reserve fund, as a percent of after-tax profits. | 10.00% |
Balance of PRC subsidiaries reserves | $ 14,764 | $ 14,299
Restricted capital and reserves | $ 113,970 | $ 113,505

X
- Definition Statutory Reserves Disclosure [Abstract] + References No definition available. + Details
Name: | acts_StatutoryReservesDisclosureAbstract
Namespace Prefix: | acts_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum required appropriations to the general reserve fund required by the PRC, as a percentage of after-tax profits. + References No definition available. + Details
Name: | acts_StatutoryReservesMinimumAnnualAppropriationsPercentOfProfit
Namespace Prefix: | acts_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total assets that cannot be used for operating purposes because of contract or regulatory requirements that are in effect for a period that extends beyond one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_OtherRestrictedAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
Name: | us-gaap_ValuationAllowancesAndReservesBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant