XML 107 R103.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Segment Information - Additional Information (Detail) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 USD ($) Segment Category | Mar. 31, 2022 USD ($)
Segment Reporting Information [Line Items] |  |
Number of reportable segments | Segment | 2 |
Number of categories | Category | 3 |
Depreciation expense | $ 7,600 | $ 2,800
Network Solutions [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation expense | 1,500 | 200
Services And Support [Member] |  |
Segment Reporting Information [Line Items] |  |
Depreciation expense | $ 2 | $ 3

X
- Definition Sales information by product category. + References No definition available. + Details
Name: | adtn_NumberOfProductCategories
Namespace Prefix: | adtn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 + Details
Name: | us-gaap_Depreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-18 + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=adtn_NetworkSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=adtn_ServicesAndSupportMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |