XML 44 R38.htm IDEA: XBRL DOCUMENT
v3.25.1

Credit Agreements (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Debt Disclosure [Abstract] |
Carrying Amount of Revolving Agreement | The carrying amounts of the Company's non-current revolving credit facility in its Condensed Consolidated Balance Sheets were as follows:
|  | As of |  |  | As of |
(In thousands) |  | March 31, 2025 |  |  | December 31, 2024 |
Wells Fargo credit agreement |  | $ | 190,085 |  |  | $ | 189,576 |
Total non-current revolving credit facility |  | $ | 190,085 |  |  | $ | 189,576 |

X
- Definition Carrying amount of revolving agreement. + References No definition available. + Details
Name: | adtn_CarryingAmountOfRevolvingAgreementTableTextBlock
Namespace Prefix: | adtn_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration