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Contract Assets - Aggregate Amount of the Transaction Price Allocated to the Unsatisfied Performance Obligations (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Unsatisfied long-term SDI contracts
Expected to be recognized as revenue over 3 years	$ 143,265	$ 156,592

X

- 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

X

- 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