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Contract Assets - Aggregate Amount of the Transaction Price Allocated to the Unsatisfied Performance Obligations (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Unsatisfied long-term SDI contracts |  |
Expected to be recognized as revenue over 3 years | $ 156,592 | $ 14,922

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- Definition Deferred revenue expected to be recognized over three years. + References No definition available. + Details
Name: | apwc_DeferredRevenueExpectedToBeRecognizedOverThreeYears
Namespace Prefix: | apwc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Unsatisfied long-term SDI contracts. + References No definition available. + Details
Name: | apwc_UnsatisfiedLongTermSDIContractsAbstract
Namespace Prefix: | apwc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration