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Network
2422408 - Disclosure - Income Taxes - Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits (Detail)
(http://www.belden.com/role/IncomeTaxesReconciliationOfBeginningAndEndingAmountsOfUnrecognizedTaxBenefitsDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000913142 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Income Tax Disclosure [Abstract]
 
 
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
 
 
Balance at beginning of year
7,293,000  
10,057,000  
Additions based on tax positions related to the current year
507,000  
544,000  
Additions for tax positions of prior years
2,675,000  
638,000  
Reductions for tax positions of prior years - Settlement
0  
(3,765,000) 
Reduction for tax positions of prior years - Statute of limitations
(1,000) 
(181,000) 
Balance at end of year
10,474,000  
 
7,293,000