New Accounting Pronouncements	9 Months Ended
Sep. 30, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements On January 1, 2017, we adopted the accounting pronouncement issued by the Financial Accounting Standards Board (“FASB”) to simplify the presentation of deferred income taxes within the balance sheet. This pronouncement eliminates the requirement that deferred tax assets and liabilities are presented as current or noncurrent based on the nature of the underlying assets and liabilities. Instead, the pronouncement requires that all deferred tax assets and liabilities, including valuation allowances, be classified as noncurrent. We adopted this pronouncement on a retrospective basis. As a result of such adoption, approximately $41.7 million of net deferred tax assets, which were previously presented as “Prepaid expenses and other” in the Condensed Consolidated Balance Sheet as of December 31, 2016, were reclassified as a reduction to “Other long-term obligations.” On January 1, 2017, we adopted the accounting pronouncement issued by the FASB to simplify the accounting for goodwill impairment. This guidance eliminates the requirement that an entity calculate the implied fair value of goodwill when measuring an impairment charge. Instead, an entity would record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value. We adopted this pronouncement on a prospective basis. The adoption of this guidance did not have a material impact on our financial position and/or results of operations. In February 2016, an accounting pronouncement was issued by the FASB to replace existing lease accounting guidance. This pronouncement is intended to provide enhanced transparency and comparability by requiring lessees to record right-of-use assets and corresponding lease liabilities on the balance sheet for most leases. Expenses associated with leases will continue to be recognized in a manner similar to current accounting guidance. This pronouncement is effective for annual and interim periods beginning after December 15, 2018, with early adoption permitted. The adoption is required to be applied on a modified retrospective basis for each prior reporting period presented. We have not yet determined the effect that the adoption of this pronouncement may have on our financial position and/or results of operations. In May 2014, an accounting pronouncement was issued by the FASB to clarify existing guidance on revenue recognition. This guidance includes the required steps to achieve the core principle that a company should recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. This pronouncement is effective for fiscal years and interim periods beginning after December 15, 2017, with early adoption permitted. The guidance permits the use of one of two retrospective transition methods. We anticipate adopting the standard on January 1, 2018 using the modified retrospective method. We have substantially completed the process to evaluate the impact of the new pronouncement on our contracts, including identifying potential differences that will result from applying the requirements of the new guidance. As a result of the review of our various types of revenue arrangements, we do not anticipate that the adoption will have a material impact on our financial position and/or results of operations, particularly as it relates to revenues generated from long-term construction, service maintenance, and time and materials contracts. With respect to our shop services operations within our United States industrial services segment, which currently recognize revenue related to the engineering, manufacturing and repair of shell and tube heat exchangers when the product is shipped and all other revenue recognition criteria have been met, the adoption of the new standard will accelerate the timing of revenue recognition for certain contracts for which control is transferred to our customers over time instead of at a point in time. We have also drafted revised accounting policies and have evaluated the enhanced disclosure requirements on our business processes, controls and systems.

New Accounting Pronouncements

On January 1, 2017, we adopted the accounting pronouncement issued by the Financial Accounting Standards Board (“FASB”) to simplify the presentation of deferred income taxes within the balance sheet. This pronouncement eliminates the requirement that deferred tax assets and liabilities are presented as current or noncurrent based on the nature of the underlying assets and liabilities. Instead, the pronouncement requires that all deferred tax assets and liabilities, including valuation allowances, be classified as noncurrent. We adopted this pronouncement on a retrospective basis. As a result of such adoption, approximately $41.7 million of net deferred tax assets, which were previously presented as “Prepaid expenses and other” in the Condensed Consolidated Balance Sheet as of December 31, 2016, were reclassified as a reduction to “Other long-term obligations.”

On January 1, 2017, we adopted the accounting pronouncement issued by the FASB to simplify the accounting for goodwill impairment. This guidance eliminates the requirement that an entity calculate the implied fair value of goodwill when measuring an impairment charge. Instead, an entity would record an impairment charge based on the excess of a reporting unit’s carrying amount over its fair value. We adopted this pronouncement on a prospective basis. The adoption of this guidance did not have a material impact on our financial position and/or results of operations.

In February 2016, an accounting pronouncement was issued by the FASB to replace existing lease accounting guidance. This pronouncement is intended to provide enhanced transparency and comparability by requiring lessees to record right-of-use assets and corresponding lease liabilities on the balance sheet for most leases. Expenses associated with leases will continue to be recognized in a manner similar to current accounting guidance. This pronouncement is effective for annual and interim periods beginning after December 15, 2018, with early adoption permitted. The adoption is required to be applied on a modified retrospective basis for each prior reporting period presented. We have not yet determined the effect that the adoption of this pronouncement may have on our financial position and/or results of operations.

In May 2014, an accounting pronouncement was issued by the FASB to clarify existing guidance on revenue recognition. This guidance includes the required steps to achieve the core principle that a company should recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. This pronouncement is effective for fiscal years and interim periods beginning after December 15, 2017, with early adoption permitted. The guidance permits the use of one of two retrospective transition methods. We anticipate adopting the standard on January 1, 2018 using the modified retrospective method. We have substantially completed the process to evaluate the impact of the new pronouncement on our contracts, including identifying potential differences that will result from applying the requirements of the new guidance. As a result of the review of our various types of revenue arrangements, we do not anticipate that the adoption will have a material impact on our financial position and/or results of operations, particularly as it relates to revenues generated from long-term construction, service maintenance, and time and materials contracts. With respect to our shop services operations within our United States industrial services segment, which currently recognize revenue related to the engineering, manufacturing and repair of shell and tube heat exchangers when the product is shipped and all other revenue recognition criteria have been met, the adoption of the new standard will accelerate the timing of revenue recognition for certain contracts for which control is transferred to our customers over time instead of at a point in time. We have also drafted revised accounting policies and have evaluated the enhanced disclosure requirements on our business processes, controls and systems.