Basis of Presentation	3 Months Ended
Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Condensed Consolidated Financial Information The accompanying Condensed Consolidated Balance Sheet as of December 31, 2015, which has been derived from audited Consolidated Financial Statements, and the unaudited Condensed Consolidated Financial Statements as of March 31, 2016 and 2015, have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, certain information and note disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to those rules and regulations. However, the Company believes the presentations and disclosures herein are adequate to make the information not misleading. These unaudited Condensed Consolidated Financial Statements should be read in conjunction with the Company’s December 31, 2015 audited Consolidated Financial Statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. In the opinion of management, the unaudited Condensed Consolidated Financial Statements reflect all recurring adjustments necessary to fairly state the financial position as of March 31, 2016, and the results of operations and cash flows of the Company for all interim periods presented. The results of operations and cash flows for the three months ended March 31, 2016 are not necessarily indicative of the operating results and cash flows to be achieved for the full year. Use of Estimates and Assumptions The Condensed Consolidated Financial Statements include certain estimates and assumptions made by management. These estimates and assumptions relate to the reported amounts of assets and liabilities at the dates of the Condensed Consolidated Financial Statements and the reported amounts of revenue and expense during those periods. Significant items subject to such estimates and assumptions include the carrying amount of property, plant and equipment, and parts and supplies inventories; quantification of amounts recorded for contingencies, tax accruals and certain other accrued liabilities; valuation allowances for accounts receivable and deferred income tax assets; and revenue recognition under the percentage-of-completion method of accounting, including estimates of progress toward completion and estimates of gross profit or loss accrual on contracts in progress. The Company bases its estimates on historical experience and other assumptions that it believes to be relevant under the circumstances. Actual results could differ from those estimates. Reclassifications Certain reclassifications have been made to prior period amounts to conform the current period financial statement presentation. These reclassifications primarily relate to the presentation of the 2015 sale of the Company's Professional Services segment including the Company's previously sold subsidiaries, Willbros Engineers, LLC and Willbros Heater Services, LLC ("Downstream Professional Services"), Premier Utility Services, LLC ("Premier") and UtilX Corporation ("UtilX") as discontinued operations. For additional information, see Note 15 - Discontinued Operations.

Condensed Consolidated Financial Information

The accompanying Condensed Consolidated Balance Sheet as of December 31, 2015, which has been derived from audited Consolidated Financial Statements, and the unaudited Condensed Consolidated Financial Statements as of March 31, 2016 and 2015, have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, certain information and note disclosures normally included in annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to those rules and regulations. However, the Company believes the presentations and disclosures herein are adequate to make the information not misleading. These unaudited Condensed Consolidated Financial Statements should be read in conjunction with the Company’s December 31, 2015 audited Consolidated Financial Statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015.

In the opinion of management, the unaudited Condensed Consolidated Financial Statements reflect all recurring adjustments necessary to fairly state the financial position as of March 31, 2016, and the results of operations and cash flows of the Company for all interim periods presented. The results of operations and cash flows for the three months ended March 31, 2016 are not necessarily indicative of the operating results and cash flows to be achieved for the full year.

Use of Estimates and Assumptions

The Condensed Consolidated Financial Statements include certain estimates and assumptions made by management. These estimates and assumptions relate to the reported amounts of assets and liabilities at the dates of the Condensed Consolidated Financial Statements and the reported amounts of revenue and expense during those periods. Significant items subject to such estimates and assumptions include the carrying amount of property, plant and equipment, and parts and supplies inventories; quantification of amounts recorded for contingencies, tax accruals and certain other accrued liabilities; valuation allowances for accounts receivable and deferred income tax assets; and revenue recognition under the percentage-of-completion method of accounting, including estimates of progress toward completion and estimates of gross profit or loss accrual on contracts in progress. The Company bases its estimates on historical experience and other assumptions that it believes to be relevant under the circumstances. Actual results could differ from those estimates.

Reclassifications

Certain reclassifications have been made to prior period amounts to conform the current period financial statement presentation. These reclassifications primarily relate to the presentation of the 2015 sale of the Company's Professional Services segment including the Company's previously sold subsidiaries, Willbros Engineers, LLC and Willbros Heater Services, LLC ("Downstream Professional Services"), Premier Utility Services, LLC ("Premier") and UtilX Corporation ("UtilX") as discontinued operations. For additional information, see Note 15 - Discontinued Operations.