General	3 Months Ended
Mar. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	1. General Description of Business SunCoke Energy, Inc. (“SunCoke Energy,” “Company,” "we," "our" and "us") is an independent owner and operator of five cokemaking facilities in the United States ("U.S."), which consists of our Haverhill Coke Company LLC ("Haverhill"), Middletown Coke Company, LLC ("Middletown"), Gateway Energy and Coke Company, LLC ("Granite City"), Jewell Coke Company, L.P. ("Jewell") and Indiana Harbor Coke Company ("Indiana Harbor") cokemaking facilities. Internationally, we operate a cokemaking facility in Brazil, in which we have a preferred stock investment. We also own and operate a Coal Logistics business, which provides coal handling and/or mixing services to third-party customers as well as to our own cokemaking facilities. Our Coal Logistics business consists of Convent Marine Terminal ("CMT"), Kanawha River Terminals LLC ("KRT") and SunCoke Lake Terminal, LLC ("Lake Terminal"). We have a cokemaking joint venture with VISA Steel Limited in India called VISA SunCoke Limited ("VISA SunCoke"). In 2015 we impaired our 49 percent investment in VISA SunCoke to zero, and consequently, beginning in the fourth quarter of 2015, we no longer include our share of VISA SunCoke in our financial results. Our consolidated financial statements include SunCoke Energy Partners, L.P. (the "Partnership"), a publicly-traded partnership. At March 31, 2016, we owned the general partner of the Partnership, which consists of a 2.0 percent ownership interest and incentive distribution rights, and owned a 53.9 percent limited partner interest in the Partnership. The remaining 44.1 percent interest in the Partnership was held by public unitholders. SunCoke is considered the primary beneficiary of the Partnership as it has the power to direct the activities that most significantly impact the Partnership's economic performance. Incorporated in Delaware in 2010 and headquartered in Lisle, Illinois, we became a publicly-traded company in 2011 and our stock is listed on the New York Stock Exchange (“NYSE”) under the symbol “SXC.” Basis of Presentation The accompanying unaudited consolidated financial statements included herein have been prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”) for interim reporting. Certain information and disclosures normally included in financial statements have been omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). In management’s opinion, the financial statements reflect all adjustments, which are of a normal recurring nature, necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented. The results of operations for the period ended March 31, 2016 are not necessarily indicative of the operating results expected for the entire year. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015. New Accounting Pronouncements In April 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-10, "Revenue From Contracts With Customers (Topic 606): Identifying Performance Obligations and Licensing." ASU 2016-10 clarifies guidance related to identifying performance obligations and licensing implementation guidance contained in the new revenue recognition standard. It is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period and permits early adoption on a limited basis. The Company is currently evaluating this ASU to determine its potential impact on the Company's financial condition, results of operations, or cash flows. In March 2016, the FASB issued ASU 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." ASU 2016-09 simplifies the accounting for employee share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. It is effective for fiscal years beginning after December 15, 2017, and interim periods within fiscal years beginning after December 15, 2018, with early adoption permitted. The Company is currently evaluating this ASU to determine its potential impact on the Company's financial condition, results of operations, or cash flows. In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)." ASU 2016-08 clarifies the implementation guidance on principal versus agent considerations. It is effective for fiscal years beginning after December 15, 2017, and interim periods within fiscal years beginning after December 15, 2018, with early adoption permitted. The Company is currently evaluating this ASU to determine its potential impact on the Company's financial condition, results of operations, or cash flows. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)." ASU 2016-02 requires lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by all leases with terms of more than 12 months. It is effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020, with early adoption permitted. The Company is currently evaluating this ASU to determine its potential impact on the Company's financial condition, results of operations, or cash flows. Reclassifications Certain amounts in the prior period consolidated financial statements have been reclassified to conform to the current year presentation.

1. General

Description of Business

SunCoke Energy, Inc. (“SunCoke Energy,” “Company,” "we," "our" and "us") is an independent owner and operator of five cokemaking facilities in the United States ("U.S."), which consists of our Haverhill Coke Company LLC ("Haverhill"), Middletown Coke Company, LLC ("Middletown"), Gateway Energy and Coke Company, LLC ("Granite City"), Jewell Coke Company, L.P. ("Jewell") and Indiana Harbor Coke Company ("Indiana Harbor") cokemaking facilities. Internationally, we operate a cokemaking facility in Brazil, in which we have a preferred stock investment. We also own and operate a Coal Logistics business, which provides coal handling and/or mixing services to third-party customers as well as to our own cokemaking facilities. Our Coal Logistics business consists of Convent Marine Terminal ("CMT"), Kanawha River Terminals LLC ("KRT") and SunCoke Lake Terminal, LLC ("Lake Terminal").

We have a cokemaking joint venture with VISA Steel Limited in India called VISA SunCoke Limited ("VISA SunCoke"). In 2015 we impaired our 49 percent investment in VISA SunCoke to zero, and consequently, beginning in the fourth quarter of 2015, we no longer include our share of VISA SunCoke in our financial results.

Our consolidated financial statements include SunCoke Energy Partners, L.P. (the "Partnership"), a publicly-traded partnership. At March 31, 2016, we owned the general partner of the Partnership, which consists of a 2.0 percent ownership interest and incentive distribution rights, and owned a 53.9 percent limited partner interest in the Partnership. The remaining 44.1 percent interest in the Partnership was held by public unitholders. SunCoke is considered the primary beneficiary of the Partnership as it has the power to direct the activities that most significantly impact the Partnership's economic performance.

Incorporated in Delaware in 2010 and headquartered in Lisle, Illinois, we became a publicly-traded company in 2011 and our stock is listed on the New York Stock Exchange (“NYSE”) under the symbol “SXC.”

Basis of Presentation

The accompanying unaudited consolidated financial statements included herein have been prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”) for interim reporting. Certain information and disclosures normally included in financial statements have been omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). In management’s opinion, the financial statements reflect all adjustments, which are of a normal recurring nature, necessary for a fair presentation of the results of operations, financial position and cash flows for the periods presented. The results of operations for the period ended March 31, 2016 are not necessarily indicative of the operating results expected for the entire year. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015.

New Accounting Pronouncements

In April 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-10, "Revenue From Contracts With Customers (Topic 606): Identifying Performance Obligations and Licensing." ASU 2016-10 clarifies guidance related to identifying performance obligations and licensing implementation guidance contained in the new revenue recognition standard. It is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period and permits early adoption on a limited basis. The Company is currently evaluating this ASU to determine its potential impact on the Company's financial condition, results of operations, or cash flows.

In March 2016, the FASB issued ASU 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." ASU 2016-09 simplifies the accounting for employee share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. It is effective for fiscal years beginning after December 15, 2017, and interim periods within fiscal years beginning after December 15, 2018, with early adoption permitted. The Company is currently evaluating this ASU to determine its potential impact on the Company's financial condition, results of operations, or cash flows.

In March 2016, the FASB issued ASU 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)." ASU 2016-08 clarifies the implementation guidance on principal versus agent considerations. It is effective for fiscal years beginning after December 15, 2017, and interim periods within fiscal years beginning after December 15, 2018, with early adoption permitted. The Company is currently evaluating this ASU to determine its potential impact on the Company's financial condition, results of operations, or cash flows.

In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)." ASU 2016-02 requires lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by all leases with terms of more than 12 months. It is effective for fiscal years beginning after December 15, 2019, and interim periods within fiscal years beginning after December 15, 2020, with early adoption permitted. The Company is currently evaluating this ASU to determine its potential impact on the Company's financial condition, results of operations, or cash flows.

Reclassifications

Certain amounts in the prior period consolidated financial statements have been reclassified to conform to the current year presentation.