Basis of Presentation and Significant Accounting Policies	9 Months Ended
Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Significant Accounting Policies Basis of Presentation We prepared the consolidated financial statements following the requirements of the Unites States (U.S.) Securities and Exchange Commission (SEC) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by accounting principles generally accepted in the United States of America (U.S. GAAP) can be condensed or omitted. Unless the context requires otherwise, references to “World Fuel”, “the Company”, “we”, “us”, or “our” in this Quarterly Report on Form 10-Q (“10-Q Report”) refer to World Fuel Services Corporation and its subsidiaries. Revenues, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be representative of those for the full year. As further discussed in Note 2, certain 2015 amounts contained in this 10-Q Report have been updated to reflect corrections to our previously issued financial statements. In the opinion of management, all adjustments necessary for a fair statement of the financial information, which are of a normal and recurring nature, have been made for the interim periods reported. The information included in this 10-Q Report should be read in conjunction with the consolidated financial statements and accompanying notes included in our 2015 Annual Report on Form 10-K (“2015 10-K Report”). Certain amounts in the consolidated financial statements and associated notes may not add due to rounding. All percentages have been calculated using unrounded amounts. Significant Accounting Policies The significant accounting policies we use for quarterly financial reporting are disclosed in Note 1 of the “Notes to the Consolidated Financial Statements” included in our 2015 10‑K Report, and as updated in our 10-Q Report for the quarter ended March 31, 2016, “Item 2. Management’s Discussion and Analysis of Financial Condition”. Adoption of New Accounting Standards The following accounting standards updates were recently adopted by the Company: Business Combinations: Simplifying the Accounting for Measurement – Period Adjustments. In September 2015, the Financial Accounting Standards Board (‘FASB”) issued an Accounting Standards Update (“ASU”), to simplify the accounting for adjustments made to provisional amounts recognized in a business combination; the amendments eliminate the requirement to retrospectively account for those adjustments. The ASU requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. It also requires the acquirer to record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures. Interest—Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs. In April 2015, the FASB issued an ASU which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this ASU. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures. Consolidation: Amendments to the Consolidation Analysis. In February 2015, the FASB issued an ASU which is intended to improve targeted areas of consolidation guidance for legal entities such as limited partnerships, limited liability corporations, and securitization structures. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures. Income Statement-Extraordinary and Unusual Items: Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items. In January 2015, the FASB issued an ASU which eliminates the concept of extraordinary items. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures. Derivatives and Hedging: Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity. In November 2014, the FASB issued an ASU which clarifies how current generally accepted accounting principles in the United States should be interpreted in evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures. Going Concern: In August 2014, the FASB issued an ASU 2014-15, Presentation of Financial Statements-Going Concern: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which requires management of the Company to evaluate whether there is substantial doubt about the Company’s ability to continue as a going concern. This update is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter. We do not believe the adoption of this new guidance will have an impact on our financial statement disclosures. Compensation - Stock Compensation: Accounting for Share-Based Payments when the Terms of an Award Provide that a Performance Target could be Achieved after the Requisite Service Period. In June 2014, the FASB issued an ASU which includes guidance that requires a performance target that affects vesting and that could be achieved after the requisite service period to be treated as a performance condition. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures.

Basis of Presentation and Significant Accounting Policies

Basis of Presentation

We prepared the consolidated financial statements following the requirements of the Unites States (U.S.) Securities and Exchange Commission (SEC) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by accounting principles generally accepted in the United States of America (U.S. GAAP) can be condensed or omitted. Unless the context requires otherwise, references to “World Fuel”, “the Company”, “we”, “us”, or “our” in this Quarterly Report on Form 10-Q (“10-Q Report”) refer to World Fuel Services Corporation and its subsidiaries.

Revenues, expenses, assets and liabilities can vary during each quarter of the year. Therefore, the results and trends in these interim financial statements may not be representative of those for the full year. As further discussed in Note 2, certain 2015 amounts contained in this 10-Q Report have been updated to reflect corrections to our previously issued financial statements. In the opinion of management, all adjustments necessary for a fair statement of the financial information, which are of a normal and recurring nature, have been made for the interim periods reported. The information included in this 10-Q Report should be read in conjunction with the consolidated financial statements and accompanying notes included in our 2015 Annual Report on Form 10-K (“2015 10-K Report”). Certain amounts in the consolidated financial statements and associated notes may not add due to rounding. All percentages have been calculated using unrounded amounts.

Significant Accounting Policies

The significant accounting policies we use for quarterly financial reporting are disclosed in Note 1 of the “Notes to the Consolidated Financial Statements” included in our 2015 10‑K Report, and as updated in our 10-Q Report for the quarter ended March 31, 2016, “Item 2. Management’s Discussion and Analysis of Financial Condition”.

Adoption of New Accounting Standards

The following accounting standards updates were recently adopted by the Company:

Business Combinations: Simplifying the Accounting for Measurement – Period Adjustments. In September 2015, the Financial Accounting Standards Board (‘FASB”) issued an Accounting Standards Update (“ASU”), to simplify the accounting for adjustments made to provisional amounts recognized in a business combination; the amendments eliminate the requirement to retrospectively account for those adjustments. The ASU requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. It also requires the acquirer to record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures.

Interest—Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs. In April 2015, the FASB issued an ASU which requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this ASU. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures.

Consolidation: Amendments to the Consolidation Analysis. In February 2015, the FASB issued an ASU which is intended to improve targeted areas of consolidation guidance for legal entities such as limited partnerships, limited liability corporations, and securitization structures. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures.

Income Statement-Extraordinary and Unusual Items: Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items. In January 2015, the FASB issued an ASU which eliminates the concept of extraordinary items. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures.

Derivatives and Hedging: Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity. In November 2014, the FASB issued an ASU which clarifies how current generally accepted accounting principles in the United States should be interpreted in evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures.

Going Concern: In August 2014, the FASB issued an ASU 2014-15, Presentation of Financial Statements-Going Concern: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which requires management of the Company to evaluate whether there is substantial doubt about the Company’s ability to continue as a going concern. This update is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter. We do not believe the adoption of this new guidance will have an impact on our financial statement disclosures.

Compensation - Stock Compensation: Accounting for Share-Based Payments when the Terms of an Award Provide that a Performance Target could be Achieved after the Requisite Service Period. In June 2014, the FASB issued an ASU which includes guidance that requires a performance target that affects vesting and that could be achieved after the requisite service period to be treated as a performance condition. This update became effective at the beginning of our 2016 fiscal year. The adoption of this ASU did not have a significant impact on our consolidated financial statements and disclosures.