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Component: (Network and Table)
Network
2410406 - Disclosure - Income Taxes - Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Detail)
(http://www.willbros.com/role/IncomeTaxesReconciliationOfBeginningAndEndingAmountOfUnrecognizedTaxBenefitsDetail)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001449732 (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]
 
 
Beginning Balance
2,406,000  
2,504,000  
Change in measurement of existing tax positions related to expiration of statute of limitations
0  
(100,000) 
Foreign exchange difference in Canadian operations
0  
2,000  
Ending Balance
2,406,000  
 
2,406,000