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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Contingencies And Commitments [Line Items] |  |
Commitments related to performance bonds | $ 22.0 | $ 22.9
Purchase commitments | $ 552.4 |

X
- Definition Commitments related to performance bonds. + References No definition available. + Details
Name: | adtn_CommitmentsRelatedToPerformanceBonds
Namespace Prefix: | adtn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contingencies and commitments. + References No definition available. + Details
Name: | adtn_ContingenciesAndCommitmentsLineItems
Namespace Prefix: | adtn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant