Rendering

Component: (Network and Table)
Network
100720 - Disclosure - Property, Plant and Equipment - Property, Plant and Equipment (Detail)
(http://www.adtran.com/20161231/taxonomy/role/DisclosurePropertyPlantAndEquipmentPropertyPlantAndEquipmentDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000926282 (http://www.sec.gov/CIK)
Property Plant And Equipment [Abstract]Period [Axis]
2016-12-31
2015-12-31
Property Plant And Equipment [Abstract]
 
 
Land
4,575,000  
4,575,000  
Building and land improvements
29,229,000  
25,667,000  
Building
68,301,000  
68,301,000  
Furniture and fixtures
18,477,000  
17,347,000  
Computer hardware and software
87,655,000  
76,389,000  
Engineering and other equipment
118,746,000  
112,132,000  
Total Property, Plant and Equipment
326,983,000  
 
304,411,000  
 
Less accumulated depreciation
(242,514,000) 
(231,178,000) 
Total Property, Plant and Equipment, net
84,469,000  
 
73,233,000