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Network
100810 - Disclosure - Income Taxes - Principal Components of Current and Non-current Deferred Taxes (Detail)
(http://www.adtran.com/20161231/taxonomy/role/DisclosureIncomeTaxesPrincipalComponentsOfCurrentAndNonCurrentDeferredTaxesDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000926282 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2016-12-31
2015-12-31
Income Tax Disclosure [Abstract]
 
 
Accounts receivable
 
7,000  
Inventory
12,020,000  
12,558,000  
Accrued expenses
5,551,000  
6,359,000  
Investments
1,062,000  
 
Deferred compensation
5,751,000  
5,072,000  
Stock-based compensation
4,724,000  
4,704,000  
Uncertain tax positions related to state taxes and related interest
762,000  
1,026,000  
Pensions
4,273,000  
5,729,000  
Foreign losses
6,486,000  
5,389,000  
State losses and credit carry-forwards
4,021,000  
4,187,000  
Federal loss and research carry-forwards
5,886,000  
5,886,000  
Valuation allowance
(6,149,000) 
(7,250,000) 
Total Deferred Tax Assets
44,387,000  
 
43,667,000  
 
Property, plant and equipment
(4,433,000) 
(3,315,000) 
Accrued expenses
 
(2,791,000) 
Intellectual property
(1,918,000) 
(476,000) 
Investments
 
(70,000) 
Total Deferred Tax Liabilities
(6,351,000) 
 
(6,652,000) 
 
Net Deferred Tax Assets
38,036,000  
 
37,015,000