| Component: (Network and Table) | |
|---|---|
| Network | 100760 - Disclosure - Goodwill and Intangible Assets - Estimated Future Amortization Expense Related to Intangible Assets (Detail) (http://www.adtran.com/20161231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsEstimatedFutureAmortizationExpenseRelatedToIntangibleAssetsDetail) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000926282 (http://www.sec.gov/CIK) |
| Goodwill And Intangible Assets Disclosure [Abstract] | Period [Axis] | |
|---|---|---|
2016-12-31 | 2015-12-31 | |
Goodwill And Intangible Assets Disclosure [Abstract] | ||
2017 | ||
2018 | ||
2019 | ||
2020 | ||
2021 | ||
Thereafter | ||
Net Value | 7,267,000 | 5,083,000 |