SunCoke Energy (SXC) 10-Q 26 Oct 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 20, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	SunCoke Energy, Inc.
Entity Central Index Key	1,514,705
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		64,355,834

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues
Sales and other operating revenue	$ 339	$ 293.9	$ 971.9	$ 897.7
Costs and operating expenses
Cost of products sold and operating expenses	257.2	217.6	748.8	682.5
Selling, general and administrative expenses	17.7	21.8	61.5	68.8
Depreciation and amortization expense	30.6	25.6	97.2	82.4
Loss on divestiture of business	0	0	0	14.7
Total costs and operating expenses	305.5	265	907.5	848.4
Operating income	33.5	28.9	64.4	49.3
Interest expense, net	16.1	12.9	45	40.3
Loss (gain) loss on extinguishment of debt	0.1	(1)	20.4	(24.9)
Income (loss) before income tax (benefit) expense	17.3	17	(1)	33.9
Income tax (benefit) expense	(1.5)	2.6	69.4	5.9
Net income (loss)	18.8	14.4	(70.4)	28
Less: Net income (loss) attributable to noncontrolling interests	7.2	8.3	(58.8)	30.6
Net income (loss) attributable to SunCoke Energy, Inc.	$ 11.6	$ 6.1	$ (11.6)	$ (2.6)
Earnings (loss) attributable to SunCoke Energy, Inc. per common share:
Basic (in dollars per share)	$ 0.18	$ 0.10	$ (0.18)	$ (0.04)
Diluted (in dollars per share)	$ 0.18	$ 0.10	$ (0.18)	$ (0.04)
Weighted average number of common shares outstanding:
Basic (in shares)	64.3	64.2	64.3	64.1
Diluted (in shares)	65.2	64.5	64.3	64.1

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 18.8	$ 14.4	$ (70.4)	$ 28
Other comprehensive income:
Postretirement other comprehensive income, net of tax	0.1	0	0.1	0
Currency translation adjustment	0.3	(0.1)	0.1	1
Comprehensive income (loss)	19.2	14.3	(70.2)	29
Less: Comprehensive income (loss) attributable to noncontrolling interests	7.2	8.3	(58.8)	30.6
Comprehensive income (loss) attributable to SunCoke Energy, Inc.	$ 12	$ 6	$ (11.4)	$ (1.6)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 148.7	$ 134	$ 105.3	$ 123.4
Receivables	70.2	60.7
Receivable from redemption of Brazilian investment	0	20.5
Inventories	121.7	92.5
Income tax receivable	9	4.6
Other current assets	7.1	3.8
Total current assets	356.7	316.1
Properties, plants and equipment (net of accumulated depreciation of $705.2 and $625.9 million at September 30, 2017 and December 31, 2016, respectively)	1,505.4	1,542.6
Goodwill	76.9	76.9
Other intangible assets, net	170.7	179
Deferred charges and other assets	5.2	6.3
Total assets	2,114.9	2,120.9
Liabilities and Equity
Accounts payable	138.1	98.6
Accrued liabilities	51.1	49.8
Deferred revenue	16.6	2.5
Current portion of long-term debt and financing obligation	2.6	4.9
Interest payable	17.6	16.2
Total current liabilities	226	172
Long-term debt and financing obligation	859	849.2
Accrual for black lung benefits	45.8	45.4
Retirement benefit liabilities	27.4	29
Deferred income taxes	417.9	352.5
Asset retirement obligations	14.1	13.9
Other deferred credits and liabilities	16	19
Total liabilities	1,606.2	1,481
Equity
Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at September 30, 2017 and December 31, 2016	0	0
Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,819,720 and 71,707,304 shares at September 30, 2017 and December 31, 2016, respectively	0.7	0.7
Treasury stock, 7,477,657 shares at September 30, 2017 and December 31, 2016, respectively	(140.7)	(140.7)
Additional paid-in capital	487.9	492.1
Accumulated other comprehensive loss	(18.8)	(19)
Retained deficit	(33.9)	(22)
Total SunCoke Energy, Inc. stockholders’ equity	295.2	311.1
Noncontrolling interests	213.5	328.8
Total equity	508.7	639.9
Total liabilities and equity	$ 2,114.9	$ 2,120.9

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Accumulated depreciation	$ 705.2	$ 625.9
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares, issued (in shares)	71,819,720	71,707,304
Treasury stock, shares (in shares)	7,477,657	7,477,657

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows from Operating Activities:
Net income (loss)	$ (70.4)	$ 28
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Loss on divestiture of business	0	14.7
Depreciation and amortization expense	97.2	82.4
Deferred income tax expense	70.4	4.5
Payments in excess of expense for postretirement plan benefits	(1.6)	(2)
Share-based compensation expense	4.1	5
Loss (gain) loss on extinguishment of debt	20.4	(24.9)
Changes in working capital pertaining to operating activities (net of the effects of divestiture):
Receivables	(9.5)	10.3
Inventories	(29.2)	24.1
Accounts payable	32.9	(3.5)
Accrued liabilities	1.3	6.7
Deferred revenue	14.1	25.5
Interest payable	1.4	(12.1)
Income taxes	(4.4)	4.4
Other	1.6	3
Net cash provided by (used in) operating activities	128.3	166.1
Cash Flows from Investing Activities:
Capital expenditures	(49.6)	(42.9)
Decrease in restricted cash	0.1	17.5
Return of Brazilian investment	20.5	0
Divestiture of business	0	(12.8)
Other investing activities	0	2.1
Net cash used in investing activities	(29)	(36.1)
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt	620.6	0
Repayment of long-term debt	(644.9)	(60.8)
Proceeds from financing obligation	0	16.2
Repayment of financing obligation	(1.8)	(0.5)
Proceeds from revolving credit facility	268	20
Repayment of revolving credit facility	(240)	(85.4)
Debt issuance costs	(16.6)	(0.2)
Acquisition of additional interest in the Partnership	(33.6)	0
Cash distribution to noncontrolling interests	(36)	(36.9)
Other financing activities	(0.3)	(0.5)
Net cash (used in) provided by financing activities	(84.6)	(148.1)
Net increase (decrease) in cash and cash equivalents	14.7	(18.1)
Cash and cash equivalents at beginning of period	134	123.4
Cash and cash equivalents at end of period	148.7	105.3
Supplemental Disclosure of Cash Flow Information
Interest paid	41.7	54.2
Income taxes paid, net of refunds of $1.0 and $6.3 million in 2017 and 2016, respectively.	$ 3.5	$ (3.1)

Consolidated Statements of Cas7

Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Cash Flows [Abstract]
Proceeds from income tax refunds	$ 1	$ 6.3

Consolidated Statements of Equi

Consolidated Statements of Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Deficit	Total SunCoke Energy, Inc. Equity	Noncontrolling Interests
Acquisition of additional interest in the Partnership:
Cumulative effect from adoption of ASU 2016-09	$ 0			$ 0.3		$ (0.3)
Beginning balance, shares at Dec. 31, 2016		71,707,304	7,477,657
Beginning balance at Dec. 31, 2016	639.9	$ 0.7	$ (140.7)	492.1	$ (19)	(22)	$ 311.1	$ 328.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(70.4)					(11.6)	(11.6)	(58.8)
Postretirement other comprehensive income, net of tax	0.1				0.1		0.1
Currency translation adjustment	0.1				0.1		0.1
Cash distribution to noncontrolling interests	(36)							(36)
Share-based compensation expense	4.1			3.9			3.9	0.2
Share issuances, net of shares withheld for taxes, shares		112,416
Share-issuances, net of shares withheld for taxes	(0.3)			(0.3)			(0.3)
Acquisition of additional interest in the Partnership:
Cash paid	(33.6)			(12.9)			(12.9)	(20.7)
Deferred tax adjustment	4.8			4.8			4.8
Ending balance, shares at Sep. 30, 2017		71,819,720	7,477,657
Ending balance at Sep. 30, 2017	$ 508.7	$ 0.7	$ (140.7)	$ 487.9	$ (18.8)	$ (33.9)	$ 295.2	$ 213.5

General

General	9 Months Ended
	Sep. 30, 2017
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 consist 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. We also hold a 49 percent investment in a cokemaking joint venture with VISA Steel Limited in India ("VISA SunCoke"), which was fully impaired in 2015, and consequently, beginning in the fourth quarter of 2015, we no longer included our share of VISA SunCoke in our financial results. Additionally, we own and operate a logistics business, which primarily provides coal handling and/or mixing services to third-party customers as well as to our own cokemaking facilities. Our logistics business consists of Convent Marine Terminal ("CMT"), Kanawha River Terminals, LLC ("KRT"), SunCoke Lake Terminal, LLC ("Lake Terminal") and Dismal River Terminal, LLC ("DRT"). Our consolidated financial statements include SunCoke Energy Partners, L.P. (the "Partnership"), a publicly-traded partnership. At September 30, 2017 , we owned the general partner of the Partnership, which consists of a 2.0 percent ownership interest and incentive distribution rights, and owned a 58.1 percent limited partner interest in the Partnership. The remaining 39.9 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. Until April 2016, when the business was disposed of, we also controlled coal mining operations in Virginia and West Virginia. 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 periods ended September 30, 2017 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, 2016 . New Accounting Pronouncements In May 2014, Financial Accounting Standards Board ("FASB") Accounting Standards Update ("ASU") 2014-09, “Revenue from Contracts with Customers (Topic 606),” which supersedes the revenue recognition requirements in “Revenue Recognition (Topic 605),” and requires entities to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Subsequently, the FASB has issued various ASUs to provide further clarification around certain aspects of ASC 606. This standard will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period, and early adoption is permitted on a limited basis. Our implementation team has gained an understanding of the standard’s revenue recognition model and is completing the analysis and documentation of our contract details for impacts under the new revenue recognition model. Based on the current status of our assessment, we expect the timing of our revenue recognition to generally remain the same under the new standard on an annual basis. Deferred revenue at CMT may be recognized on a more accelerated basis during quarterly periods within the year based on facts and circumstances considered at each quarter under the new guidance. The Company expects to adopt this standard on January 1, 2018 using the modified retrospective method. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)." ASU 2016-02 requires lessees to be recognized as 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 annual and interim periods in fiscal years beginning after December 15, 2018, with early adoption permitted. The standard requires the use of a modified retrospective transition method. A multi-disciplined implementation team has gained an understanding of the accounting and disclosure provisions of the standard and is in the process of analyzing the impacts to our business, including the development of new accounting processes to account for our leases and support the required disclosures. While we are still evaluating the impact of adopting this standard, we expect that upon adoption the right-of-use assets and lease liabilities, such as various plant equipment rentals and the lease of our corporate office space, will increase the reported assets and liabilities on our Consolidated Balance Sheets. The Company expects to adopt this standard on January 1, 2019.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2017
Inventory Disclosure [Abstract]
Inventories	2. Inventories The components of inventories were as follows: September 30, 2017 December 31, 2016 (Dollars in millions) Coal $ 74.0 $ 49.4 Coke 10.9 7.7 Materials, supplies and other 36.8 35.4 Total inventories $ 121.7 $ 92.5

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	3. Goodwill and Other Intangible Assets Goodwill, which represents the excess of the purchase price over the fair value of net assets acquired, is tested for impairment as of October 1 of each year, or when events occur or circumstances change that would, more likely than not, reduce the fair value of a reporting unit to below its carrying value. Goodwill allocated to our Domestic Coke and Coal Logistics segments was $3.4 million and $73.5 million at both September 30, 2017 and December 31, 2016 , respectively. The components of other intangible assets, net were as follows: September 30, 2017 December 31, 2016 Weighted - Average Remaining Amortization Years Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net (Dollars in millions) Customer contracts 5 $ 31.7 $ 12.8 $ 18.9 $ 31.7 $ 9.9 $ 21.8 Customer relationships 14 28.7 5.2 23.5 28.7 3.8 24.9 Permits 25 139.0 10.9 128.1 139.0 7.1 131.9 Trade name 1 1.2 1.0 0.2 1.2 0.8 0.4 Total $ 200.6 $ 29.9 $ 170.7 $ 200.6 $ 21.6 $ 179.0 The permits above represent the environmental and operational permits required to operate a coal export terminal in accordance with the United States Environmental Protection Agency and other regulatory bodies. Intangible assets are amortized over their useful lives in a manner that reflects the pattern in which the economic benefit of the asset is consumed. The permits’ useful lives were estimated to be 27 years at acquisition based on the expected useful life of the significant operating equipment at the facility. These permits have an average remaining renewal term of approximately 3.7 years. The permits were renewed regularly prior to our acquisition of CMT. We also have historical experience of renewing and extending similar arrangements at our other facilities and intend to continue to renew our permits as they come up for renewal for the foreseeable future. Total amortization expense for intangible assets subject to amortization was $2.8 million and $8.3 million for the three and nine months ended September 30, 2017 , respectively, and $2.8 million and $8.4 million for the three and nine months ended September 30, 2016 , respectively.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	4. Income Taxes At the end of each interim period, we make our best estimate of the effective tax rate expected to be applicable for the full fiscal year and the impact of discrete items, if any, and adjust the rate as necessary. The Company recorded an income tax benefit of $1.5 million for the three months ended September 30, 2017 . This benefit was primarily due to the impact of earnings attributable to noncontrolling ownership interest in the partnerships, partially offset by an increase in Illinois income tax rate effective July 2017. The Company recorded income tax expense of $69.4 million during the nine months ended September 30, 2017 . In addition to the items discussed above, income tax expense during the nine months ended September 30, 2017 included the impacts of the Internal Revenue Service ("IRS") announcement of its final regulations on qualifying income in January 2017 discussed below. In January 2017, the IRS announced its decision to exclude cokemaking as a qualifying income generating activity in its final regulations (the "Final Regulations") issued under section 7704(d)(1)(E) of the Internal Revenue Code relating to the qualifying income exception for publicly traded partnerships. However, the Final Regulations include a transition period for activities that were reasonably interpreted to be qualifying income and carried on by publicly traded partnerships prior to the Final Regulations. The Partnership previously received a will-level opinion from its counsel, Vinson & Elkins LLP, that the Partnership's cokemaking operations generated qualifying income prior to the Final Regulations. Therefore, the Partnership believes it had a reasonable basis to conclude its cokemaking operations were considered qualifying income before the issuance of the new regulations and as such expects to maintain its treatment as a partnership through the transition period. Cokemaking entities in the Partnership will become taxable as corporations on January 1, 2028, after the transition period ends. As a result of the Final Regulations discussed above, the Partnership recorded deferred income tax expense of $148.6 million to set up its initial deferred income tax liability during the first quarter of 2017, primarily related to differences in the book and tax basis of fixed assets, which are expected to exist at the end of the 10-year transition period when the cokemaking operations become taxable. As the Company consolidates the Partnership, the entire deferred income tax expense was recognized during the first quarter of 2017. However, the Company had already recorded $84.4 million of the deferred income tax liability in its financial statements related to the Company's share of the deferred tax liability for the book and tax differences in its investment in the Partnership. Therefore, the net impact to the Company’s deferred tax expense was $64.2 million during the nine months ended September 30, 2017. This incremental tax impact is solely attributable to the Partnership’s public unitholders. As such, an equal reduction to noncontrolling interest was recorded. As a result, the Final Regulations have no impact to net income attributable to the Company. The Company recorded income tax expense of $2.6 million and $5.9 million for the three and nine months ended September 30, 2016 , respectively, resulting in effective tax rates of 15.3 percent and 17.4 percent , respectively, as compared to the 35.0 percent federal statutory rate, primarily due to the impact of earnings attributable to noncontrolling ownership interests in partnerships. On January 17, 2012 , SunCoke Energy and Sunoco, Inc. entered into a tax sharing agreement that governs the parties’ respective rights, responsibilities and obligations with respect to tax liabilities and benefits, tax attributes, the preparation and filing of tax returns, the control of audits and other tax proceedings and other matters regarding taxes. SunCoke Energy will continue to monitor the utilization of all tax attributes subject to the tax sharing agreement as applicable tax returns are filed or as tax examinations progress and will record additional adjustments when necessary, consistent with the terms of the tax sharing agreement.

Accrued Liabilities

Accrued Liabilities	9 Months Ended
	Sep. 30, 2017
Payables and Accruals [Abstract]
Accrued Liabilities	5. Accrued Liabilities Accrued liabilities consisted of the following: September 30, 2017 December 31, 2016 (Dollars in millions) Accrued benefits $ 19.1 $ 21.4 Current portion of postretirement benefit obligation 3.3 3.3 Other taxes payable 12.4 10.4 Current portion of black lung liability 4.8 4.8 Accrued legal 6.0 4.4 Other 5.5 5.5 Total accrued liabilities $ 51.1 $ 49.8

Debt and Financing Obligation

Debt and Financing Obligation	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
Debt and Financing Obligation	6. Debt and Financing Obligation Total debt and financing obligation, including the current portion of long-term debt and financing obligation, consisted of the following: September 30, 2017 December 31, 2016 (Dollars in millions) 7.500 percent senior notes, due 2025 ("2025 Partnership Notes") $ 630.0 $ — 7.375 percent senior notes, due 2020 (''2020 Partnership Notes'') — 463.0 7.625 percent senior notes, due 2019 ("Notes") 44.6 44.6 Partnership's term loan, due 2019 ("Partnership Term Loan") — 50.0 SunCoke's revolving credit facility, due 2022 ("Revolving Facility") — — Partnership's revolving credit facility, due 2022 and 2019, respectively ("Partnership Revolver") 200.0 172.0 Partnership's promissory note payable, due 2021 ("Promissory Note") — 113.2 5.82 percent financing obligation, due 2021 ("Partnership Financing Obligation") 13.3 15.2 Total borrowings 887.9 858.0 Original issue (discount) premium (9.1 ) 7.5 Debt issuance costs (17.2 ) (11.4 ) Total debt and financing obligation 861.6 854.1 Less: current portion of long-term debt and financing obligation 2.6 4.9 Total long-term debt and financing obligation $ 859.0 $ 849.2 Issuance of 2025 Partnership Senior Notes In May 2017, the Partnership issued $630.0 million aggregate principal amount of senior notes with an interest rate of 7.5 percent due in May 2025. The Partnership received proceeds of $620.6 million , net of a discount of $9.4 million . The Partnership incurred debt issuance costs related to this transaction of $11.9 million . The 2025 Partnership Senior Notes are the senior unsecured obligations of the Partnership, and are guaranteed on a senior unsecured basis by each of the Partnership’s existing and certain future subsidiaries (other than SunCoke Energy Partners Finance Corp.). Interest on the 2025 Partnership Senior Notes is payable semi-annually in cash in arrears on June 15 and December 15 of each year, commencing on December 15, 2017. The Partnership may redeem some or all of the 2025 Partnership Senior Notes at any time on or after June 15, 2020 at specified redemption prices plus accrued and unpaid interest, if any, to the redemption date. Before June 15, 2020, and following certain equity offerings, the Partnership also may redeem up to 35 percent of the 2025 Partnership Senior Notes at a price equal to 107.50 percent of the principal amount, plus accrued and unpaid interest, if any, to the redemption date. In addition, at any time prior to June 15, 2020, the Partnership may redeem some or all of the 2025 Partnership Senior Notes at a price equal to 100 percent of the principal amount, plus accrued and unpaid interest, if any, to the redemption date, plus a “make-whole” premium. The Partnership is obligated to offer to purchase all or a portion of the 2025 Partnership Senior Notes at a price of (a) 101 percent of their principal amount, together with accrued and unpaid interest, if any, to the date of purchase, upon the occurrence of certain change of control events and (b) 100 percent of their principal amount, together with accrued and unpaid interest, if any, to the date of purchase, upon the occurrence of certain asset dispositions. These restrictions and prohibitions are subject to certain qualifications and exceptions set forth in the Indenture, including without limitation, reinvestment rights with respect to the proceeds of asset dispositions. The 2025 Partnership Senior Notes contains covenants that, among other things, limit the Partnership’s ability and the ability of certain of the Partnership’s subsidiaries to (i) incur indebtedness, (ii) pay dividends or make other distributions, (ii) prepay, redeem or repurchase certain subordinated debt, (iv) make loans and investments, (v) sell assets, (vi) incur liens, (vii) enter into transactions with affiliates, (viii) enter into agreements restricting the ability of subsidiaries to pay dividends and (ix) consolidate or merge. Purchase and Redemption of 2020 Partnership Senior Notes and Repayment of the Partnership Term Loan During the second quarter of 2017, the Partnership used the proceeds from the issuance of the 2025 Partnership Notes to purchase and redeem all of its 2020 Partnership Notes , including principal of $463.0 million and a premium of $18.7 million , and to repay the $50.0 million outstanding on the Partnership Term Loan. As a result, the Partnership recorded a loss on extinguishment of debt on the Consolidated Statement of Operations of $19.1 million , which included the premium paid and a write-off of unamortized debt issuance costs of $7.0 million partly offset by a write-off of unamortized premiums of $6.6 million . Revolving Facility In February 2017, the Company extended the maturity of its Revolving Facility to December 2018 and reduced its capacity by $25.0 million to $125.0 million , resulting in additional debt issuance costs of $0.6 million . Additionally, the Company recorded a loss on extinguishment of debt on the Consolidated Statement of Operations of $0.1 million , representing a write-off of unamortized debt issuance costs, during the nine months ended September 30, 2017. In May 2017, the Company amended and restated its Revolving Facility, which extended its maturity date to May 2022 and reduced its capacity to $100.0 million , resulting in additional debt issuance costs of $1.1 million . Additionally, the Company recorded a loss on extinguishment of debt on the Consolidated Statement of Operations of $0.3 million , representing a write-off of unamortized debt issuance costs, during the nine months ended September 30, 2017. As of September 30, 2017 , the Revolving Facility had letters of credit outstanding of $28.2 million and no outstanding balance, leaving $71.8 million available. Partnership Revolver In May 2017, the Partnership repaid the $172.0 million outstanding balance and then amended and restated the Partnership Revolver, which increased the Partnership's capacity from $250.0 million to $285.0 million and extended the maturity to May 2022. The Partnership then borrowed $200.0 million under the amended and restated credit facility during the nine months ended September 30, 2017 . In connection with the amendments to the Partnership Revolver, the Partnership incurred debt issuance costs of $3.0 million and recorded a loss on extinguishment of debt on the Consolidated Statement of Operations of $0.8 million , representing a write-off of unamortized debt issuance costs, during the nine months ended September 30, 2017 . As of September 30, 2017 , the Partnership had $1.9 million of letters of credit outstanding and an outstanding balance of $200.0 million , leaving $83.1 million available. Partnership's Promissory Note In August 2017, the Partnership utilized $100.0 million of its borrowings under the Partnership Revolver and $12.6 million of cash to repay the remaining outstanding balance of $112.6 million on the Partnership's Promissory Note. As a result, the Partnership recorded a loss on extinguishment of debt on the Consolidated Statement of Operations of $0.1 million , representing a write-off of unamortized debt issuance costs, during the three and nine months ended September 30, 2017 . Covenants Under the terms of the Revolving Facility, the Company is subject to a maximum leverage ratio of 3.25 : 1.00 and a minimum consolidated interest coverage ratio of 2.75 : 1.00 . Under the terms of the Partnership Revolver, the Partnership is subject to a maximum consolidated leverage ratio of 4.5 : 1.0 prior to June 30, 2020 and 4.0 : 1.0 after June 30, 2020 and a minimum consolidated interest coverage ratio of 2.5 : 1.0 . The Company's and Partnership's credit agreements contain other covenants and events of default that are customary for similar agreements and may limit our ability to take various actions including our ability to pay a dividend or repurchase our stock. If we fail to perform our obligations under these and other covenants, the lenders' credit commitment could be terminated and any outstanding borrowings, together with accrued interest, under the Revolving Facility and Partnership Revolver could be declared immediately due and payable. The Company and the Partnership have a cross default provision that applies to our indebtedness having a principal amount in excess of $35 million . As of September 30, 2017 , the Company and the Partnership were in compliance with all applicable debt covenants. We do not anticipate violation of these covenants nor do we anticipate that any of these covenants will restrict our operations or our ability to obtain additional financing.

Retirement Benefits Plans

Retirement Benefits Plans	9 Months Ended
	Sep. 30, 2017
Retirement Benefits [Abstract]
Retirement Benefits Plans	7. Retirement Benefits Plans The Company has plans which provide health care and life insurance benefits for many of its retirees (“postretirement benefit plans”). The postretirement benefit plans are unfunded and the costs are borne by the Company. The expense from these plans consisted of the following components: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Interest cost on benefit obligations $ 0.3 $ 0.3 $ 0.9 $ 0.9 Amortization of: Actuarial losses 0.3 0.2 0.7 0.6 Prior service benefit (0.2 ) (0.2 ) (0.6 ) (0.6 ) Total expense $ 0.4 $ 0.3 $ 1.0 $ 0.9 Defined Contribution Plans The Company has defined contribution plans which provide retirement benefits for certain of its employees. The Company’s contributions, which are principally based on the Company’s pretax income and the aggregate compensation levels of participating employees are charged against income as incurred. These contributions amounted to $1.6 million and $4.7 million for the three and nine months ended September 30, 2017 , respectively, and $1.4 million and $4.1 million for the three and nine months ended September 30, 2016 , respectively.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	9 Months Ended
	Sep. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	8. Commitments and Contingent Liabilities Legal Matters SunCoke Energy is party to an omnibus agreement pursuant to which we will provide indemnification to the Partnership upon the occurrence of certain potential adverse events under certain coke sales agreements, indemnification of certain environmental costs and preferential rights for growth opportunities. The United States Environmental Protection Agency ("EPA") issued Notices of Violations (“NOVs”) for our Haverhill and Granite City cokemaking facilities which stemmed from alleged violations of our air emission operating permits for these facilities. We are working in a cooperative manner with the EPA, the Ohio Environmental Protection Agency and the Illinois Environmental Protection Agency to address the allegations, and have entered into a consent decree in federal district court with these parties. The consent decree includes a $2.2 million civil penalty payment, which was paid in December 2014, as well as capital projects underway to improve the reliability of the energy recovery systems and enhance environmental performance at the Haverhill and Granite City facilities. We anticipate spending between approximately $140 million and $145 million related to these projects, of which we have spent approximately $103 million to date. The remaining capital is expected to be spent through the first quarter of 2019 . A portion of the proceeds from the Partnership's initial public offering and subsequent dropdowns are expected to be used to fund $119 million of these environmental remediation projects. Pursuant to the omnibus agreement, any amounts that the Partnership spends on these projects in excess of the $119 million will be reimbursed by the Company. SunCoke Energy has also received NOVs, Findings of Violations ("FOVs"), and information requests from the EPA related to our Indiana Harbor cokemaking facility, which allege violations of certain air operating permit conditions for this facility. The Clean Air Act (the "CAA") provides the EPA with the authority to issue, among other actions, an order to enforce a State Implementation Plan ("SIP") 30 days after an NOV. The CAA also authorizes EPA enforcement of other non-SIP requirements immediately after an FOV. Generally, an NOV applies to SIPs and requires the EPA to wait 30 days, while an FOV applies to all other provisions (such as federal regulations) of the CAA, and has no waiting period. The NOVs and/or FOVs were received in 2010, 2012, 2013, 2015 and 2016. After discussions with the EPA and the Indiana Department of Environmental Management (“IDEM”) in 2010, resolution of the NOVs/FOVs was postponed by mutual agreement because of ongoing discussions regarding the NOVs at Haverhill and Granite City. In January 2012, the Company began working in a cooperative manner to address the allegations with the EPA, the IDEM and Cokenergy, Inc., an independent power producer that owns and operates an energy facility, including heat recovery equipment and a flue gas desulfurization system, that processes hot flue gas from our Indiana Harbor facility to produce steam and electricity and to reduce the sulfur and particulate content of such flue gas. The EPA, IDEM, SunCoke Energy and Cokenergy, Inc. have met regularly since those discussions commenced, and have continued to meet regularly in 2017 to attempt to agree upon a settlement of the NOVs and FOVs. Capital projects are underway to address items that would be included in conjunction with a settlement of the NOVs/FOVs. Any such settlement likely will require payment of a civil penalty for alleged past violations as well as undertaking capital projects to achieve compliance, and possibly enhance reliability and environmental performance of our Indiana Harbor facility. The settlement of most NOVs and FOVs typically involves first agreeing on injunctive relief and then agreeing on any appropriate penalty in light of the violations and the scope and cost of any injunctive relief. Over the past several years, EPA, IDEM, SunCoke Energy and Cokenergy, Inc. have focused on the nature and extent of any injunctive relief to settle the NOVs/FOVs. The full scope and cost of any such injunctive relief has not been finalized, but the parties have advanced these discussions to the point where they have turned their attention to the civil penalty as well. The amount of any civil penalties that SunCoke Energy would be willing to pay in settlement of these claims is contingent on the cost of the final injunctive relief. While SunCoke Energy cannot yet assess the final scope or cost of any injunctive relief or potential monetary penalty, the Company has recorded an estimated penalty amount which is not significant to the consolidated financial statements. The Company believes that it has meritorious defenses to many of the claims and that a failure to reach a settlement with the EPA regarding the NOVs and FOVs may lead to litigation in which rulings in the Company's favor on some or all of the allegations are possible. The Company is a party to certain other pending and threatened claims, including matters related to commercial and tax disputes, product liability, employment claims, personal injury claims, premises-liability claims, allegations of exposures to toxic substances and general environmental claims. Although the ultimate outcome of these claims cannot be ascertained at this time, it is reasonably possible that some portion of these claims could be resolved unfavorably to the Company. Management of the Company believes that any liability which may arise from claims would not have a material adverse impact on our consolidated financial statements. Black Lung Benefit Liabilities The Company has obligations related to coal workers’ pneumoconiosis, or black lung, benefits to certain of our former coal mining employees (and their dependents). Such benefits are provided for under Title IV of the Federal Coal Mine and Safety Act of 1969 and subsequent amendments, as well as for black lung benefits provided in the states of Virginia, Kentucky and West Virginia pursuant to workers’ compensation legislation. The Patient Protection and Affordable Care Act (“PPACA”), which was implemented in 2010, amended previous legislation related to coal workers’ black lung obligations. PPACA provides for the automatic extension of awarded lifetime benefits to surviving spouses and changes the legal criteria used to assess and award claims. We act as a self-insurer for both state and federal black lung benefits and adjust our liability each year based upon actuarial calculations of our expected future payments for these benefits. Our independent actuarial consultants calculate the present value of the estimated black lung liability annually based on actuarial models utilizing our population of former coal mining employees, historical payout patterns of both the Company and the industry, actuarial mortality rates, disability incidence, medical costs, death benefits, dependents, discount rates and the current federally mandated payout rates. The estimated liability may be impacted by future changes in the statutory mechanisms, modifications by court decisions and changes in filing patterns driven by perceptions of success by claimants and their advisors, the impact of which cannot be estimated. The estimated liability was $50.6 million and $50.2 million as of September 30, 2017 and December 31, 2016 , respectively, of which $4.8 million was included in accrued liabilities on the Consolidated Balance Sheets in both periods.

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	9. Share-Based Compensation Equity Classified Awards During the nine months ended September 30, 2017 , the Company granted share-based compensation to eligible participants under the SunCoke Energy, Inc. Long-Term Performance Enhancement Plan (“SunCoke LTPEP”). All awards vest immediately upon a change in control and a qualifying termination of employment as defined by the SunCoke LTPEP. Stock Options The Company granted the following stock options during the nine months ended September 30, 2017 with an exercise price equal to the closing price of our common stock on the date of grant. Weighted Average Per Share No. of Shares Exercise Price Grant Date Fair Value Traditional stock options 84,332 $ 9.85 $ 5.17 Performance based options 80,595 $ 9.85 $ 4.55 The stock options vest in three equal annual installments beginning one year from the date of grant. In order to become exercisable, the performance based options also require the closing price of the Company's common stock to reach or exceed $14.78 , or 150 percent of $9.85 , for any 15 trading days during the three -year period beginning on the grant date. The stock options expire ten years from the date of grant. The Company calculates the value of each employee stock option, estimated on the date of grant, using the Black-Scholes option pricing model with a Monte Carlo simulation for the performance based options. The weighted-average fair value of employee stock options granted during the nine months ended September 30, 2017 was based on using the following weighted-average assumptions: Nine Months Ended September 30, 2017 Risk-free interest rate 2 % Expected term 6 years Volatility 54 % Dividend yield — % The risk-free interest rate assumption is based on the U.S. Treasury yield curve at the date of grant for periods which approximate the expected life of the option. The expected term of the employee options represent the average contractual term adjusted by the average vesting period of each option tranche. We used a blended expected volatility assumption that incorporates 90 percent historical volatility and 10 percent implied volatility. The historical volatility is calculated based on our historical daily stock returns over the options' expected term. The implied volatility is calculated based on our near-the-money call options traded over the 90 -day period preceding the valuation date. The dividend yield assumption is based on the Company’s expectation of dividend payouts at the time of grant. Restricted Stock Units Settled in Shares The Company issued 22,628 stock-settled restricted stock units (“RSUs”) to certain employees for shares of the Company’s common stock during the nine months ended September 30, 2017 . The weighted average grant date fair value was $9.85 per share. The RSUs vest in three annual installments beginning one year from the date of grant. All awards vest immediately upon a change in control as defined by the SunCoke LTPEP. Performance Share Units The Company granted the following performance share units ("PSUs") for shares of the Company's common stock during the nine months ended September 30, 2017 that vest on December 31, 2019 : Shares Fair Value per Share PSUs (1)(2) 237,610 $ 11.40 (1) The PSU awards are split 50 /50 between the Company's three year cumulative Adjusted EBITDA performance measure and the Company's three -year average pre-tax return on capital performance measure for its coke and logistics businesses and unallocated corporate expenses. (2) The number of PSU's ultimately awarded will be determined by the above performance versus targets and the Company's three -year total shareholder return ("TSR") as compared to the TSR of the companies making up the Nasdaq Iron & Steel Index ("TSR Modifier"). The TSR Modifier can impact the payout between 50 percent and 150 percent of the Company's final performance measure results. The award may vest between zero and 250 percent of the original units granted. The fair value of the PSUs granted during the nine months ended September 30, 2017 is based on the closing price of our common stock on the date of grant as well as a Monte Carlo simulation for the valuation of the TSR Modifier. Liability Classified Awards Restricted Stock Units Settled in Cash During the nine months ended September 30, 2017 , the Company issued 95,364 restricted stock units to be settled in cash ("Cash RSUs"), which vest in three annual installments beginning one year from the grant date. The weighted average grant date fair value of the Cash RSUs granted during the nine months ended September 30, 2017 was $9.85 and was based on the closing price of our common stock on the day of grant. The Cash RSU liability at September 30, 2017 was adjusted based on the closing price of our common stock on September 30, 2017 of $9.14 per share. The liability at September 30, 2017 was $0.7 million , of which $0.5 million was included in accrued liabilities and $0.2 million was included in other deferred credits and liabilities on the Consolidated Balance Sheets. Cash Incentive Award The Company also granted share-based compensation to eligible participants under the SunCoke Energy, Inc. Long-Term Cash Incentive Plan ("SunCoke LTCIP"), which became effective January 1, 2016 . The SunCoke LTCIP is designed to provide for performance-based, cash-settled awards. All awards vest immediately upon a change in control and a qualifying termination of employment as defined by the SunCoke LTCIP. The Company issued a grant date fair value award of $0.7 million during the nine months ended September 30, 2017 that vest on December 31, 2019 . The awards are split 50 /50 between the Company's three cumulative Adjusted EBITDA performance and the Company's three -year average per-tax return on capital for its coke and logistics businesses and unallocated corporate expense. The ultimate award value will be determined by the performance versus targets and the Company's three year TSR Modifier performance, but will be capped at 250 percent of the target award. The cash incentive award liability at September 30, 2017 was adjusted based on the Company's three year cumulative Adjusted EBITDA performance and adjusted average pre-tax return on capital for the Company's coke and logistics businesses and unallocated corporate expenses. The cash incentive award liability at September 30, 2017 was $0.5 million , which was included in other deferred credits and liabilities on the Consolidated Balance Sheets. Summary of Share-Based Compensation Expense Below is a summary of the compensation expense, unrecognized compensation costs, and the period for which the unrecognized compensation cost is expected to be recognized over: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 September 30, 2017 Compensation Expense (1) Unrecognized Compensation Cost Recognition Period (Dollars in millions) (Years) Equity Awards: Stock Options $ 0.3 $ 0.6 $ 1.1 $ 1.6 $ 0.5 1.2 RSUs 0.2 0.6 0.9 2.1 $ 0.5 1.1 PSUs 0.5 0.3 1.7 1.0 $ 3.6 2.2 Total equity awards $ 1.0 $ 1.5 $ 3.7 $ 4.7 Liability Awards: Cash RSUs $ 0.1 $ 0.2 $ 0.5 $ 0.3 $ 1.2 1.8 Cash incentive award 0.1 0.1 0.4 0.2 $ 0.7 2.0 Total liability awards $ 0.2 $ 0.3 $ 0.9 $ 0.5 (1) Compensation expense recognized by the Company in selling, general and administrative expenses on the Consolidated Statements of Operations. The Company and the Partnership issued $0.4 million and $0.3 million of shared-based compensation to the Company's and the Partnership's Board of Directors during the nine months ended September 30, 2017 and 2016 , respectively.

Acquisition of Noncontrolling I

Acquisition of Noncontrolling Interest	9 Months Ended
	Sep. 30, 2017
Noncontrolling Interest [Abstract]
Acquisition of Noncontrolling Interest	10. Acquisition of Noncontrolling Interest On April 17, 2017, the Company's Board of Directors authorized a program for the Company to purchase outstanding Partnership common units at any time and from time to time in the open market, through privately negotiated transactions, block transactions, or otherwise for a total aggregate cost to the Company not to exceed $50.0 million . In July 2017, the Company's Board of Directors authorized the Company to purchase an incremental $50.0 million of Partnership common units in the open market. During three and nine months ended September 30, 2017 , the Company purchased 520,573 and 1,980,977 , respectively, of outstanding Partnership common units in the open market for total cash payments of $9.0 million and $33.6 million , respectively. This resulted in a decrease in noncontrolling interest of $5.3 million and $20.7 million during the three and nine months ended September 30, 2017, respectively, on the Consolidated Balance Sheets related to the Partnership's net book value acquired by the Company. During the three and nine months ended September 30, 2017 , the Company decreased its additional paid-in capital balance by $2.3 million and $8.1 million , respectively, on the Consolidated Balance Sheets for the consideration paid in excess of the net book value of the noncontrolling interest acquired, net of a deferred tax adjustment of $1.4 million and $4.8 million , respectively. The following table summarizes the effects of the changes in the Company's ownership interest in the Partnership on SunCoke's equity: Three Months Ended Nine Months Ended September 30, 2017 Net income (loss) attributable to SunCoke Energy, Inc. $ 11.6 $ (11.6 ) Decrease in SunCoke Energy, Inc. equity for the purchase of additional interest in the Partnership (2.3 ) (8.1 ) Change from net income (loss) attributable to SunCoke Energy, Inc. and transfers to noncontrolling interest $ 9.3 $ (19.7 ) Subsequent to September 30, 2017 , the Company purchased an additional 162,767 of outstanding Partnership common units in the open market for total cash payments of $2.8 million , leaving a remaining common unit purchase program balance of $63.6 million as of October 25, 2017 .

Earnings per Share

Earnings per Share	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Earnings per Share	11. Earnings per Share Basic earnings per share (“EPS”) has been computed by dividing net (loss) income available to SunCoke Energy, Inc. by the weighted average number of shares outstanding during the period. Except where the result would be anti-dilutive, diluted earnings per share has been computed to give effect to share-based compensation awards using the treasury stock method. The following table sets forth the reconciliation of the weighted-average number of common shares used to compute basic EPS to those used to compute diluted EPS: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Shares in millions) Weighted-average number of common shares outstanding-basic 64.3 64.2 64.3 64.1 Add: Effect of dilutive share-based compensation awards 0.9 0.3 — — Weighted-average number of shares-diluted 65.2 64.5 64.3 64.1 The following table shows stock options, restricted stock units, and performance stock units that are excluded from the computation of diluted earnings per share as the shares would have been anti-dilutive: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Shares in millions) Stock options 2.9 3.1 3.3 3.2 Restricted stock units — 0.1 0.2 0.3 Performance stock units 0.2 — 0.9 0.4 Total 3.1 3.2 4.4 3.9

Supplemental Accumulated Other

Supplemental Accumulated Other Comprehensive Loss Information	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Supplemental Accumulated Other Comprehensive Loss Information	12. Supplemental Accumulated Other Comprehensive Loss Information Changes in accumulated other comprehensive loss, by component, are presented below: Benefit Plans Currency Translation Adjustments Total (Dollars in millions) At December 31, 2016 $ (4.8 ) $ (14.2 ) $ (19.0 ) Other comprehensive income 0.1 0.1 0.2 At September 30, 2017 $ (4.7 ) $ (14.1 ) $ (18.8 ) Reclassifications out of the accumulated other comprehensive loss were as follows: (1) Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Amortization of postretirement benefit plan items to net income: Actuarial loss (2) $ 0.3 $ 0.2 $ 0.7 $ 0.6 Prior service benefit (2) (0.2 ) (0.2 ) (0.6 ) (0.6 ) Total expense before taxes 0.1 — 0.1 — Less income tax benefit — — — — Total expense, net of tax $ 0.1 $ — $ 0.1 $ — (1) Amounts in parentheses indicate credits to net income. (2) These accumulated other comprehensive (income) loss components are included in the computation of postretirement benefit plan expense (benefit). See Note 7 .

Fair Value Measurement

Fair Value Measurement	9 Months Ended
	Sep. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurement	13. Fair Value Measurement The Company measures certain financial and non-financial assets and liabilities at fair value on a recurring basis. Fair value is defined as the price that would be received from the sale of an asset or paid to transfer a liability in the principal or most advantageous market in an orderly transaction between market participants on the measurement date. Fair value disclosures are reflected in a three-level hierarchy, maximizing the use of observable inputs and minimizing the use of unobservable inputs. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability on the measurement date. The three levels are defined as follows: • Level 1 - inputs to the valuation methodology are quoted prices (unadjusted) for an identical asset or liability in an active market. • Level 2 - inputs to the valuation methodology include quoted prices for a similar asset or liability in an active market or model-derived valuations in which all significant inputs are observable for substantially the full term of the asset or liability. • Level 3 - inputs to the valuation methodology are unobservable and significant to the fair value measurement of the asset or liability. Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis Certain assets and liabilities are measured at fair value on a recurring basis. The Company's cash equivalents, which amounted to $6.7 million and $4.4 million at September 30, 2017 and December 31, 2016 , respectively, were measured at fair value based on quoted prices in active markets for identical assets. These inputs are classified as Level 1 within the valuation hierarchy. CMT Contingent Consideration In connection with the CMT acquisition, the Partnership entered into a contingent consideration arrangement that requires the Partnership to make future payments to The Cline Group based on future volume over a specified threshold, price and contract renewals. The fair value of the contingent consideration was estimated based on a probability-weighted analysis using significant inputs that are not observable in the market, or Level 3 inputs. Key assumptions included probability adjusted levels of handling services provided by CMT, anticipated price per ton on future sales and probability of contract renewal, including length of future contracts, volume commitment, and anticipated price per ton. The fair value of the contingent consideration at September 30, 2017 and December 31, 2016 was $2.5 million and $4.2 million , respectively, and was included in other deferred credits and liabilities on the Consolidated Balance Sheets. The decrease in the fair value of the contingent consideration liability was due to changes in expected throughput volumes related to the long-term, take-or-pay agreements . This reduction in the contingent consideration balance decreased costs of products sold and operating expenses on the Consolidated Statements of Operations by $2.0 million and $1.7 million during the three and nine months ended September 30, 2017 , respectively. During the first quarter of 2016, the Partnership amended the contingent consideration terms with The Cline Group. These amendment terms and subsequent fair value adjustments during the three and nine months ended September 30, 2016 of $4.6 million and $8.3 million , respectively, decreased costs of products sold and operating expenses on the Consolidated Statements of Operations. Certain Financial Assets and Liabilities not Measured at Fair Value At September 30, 2017 and December 31, 2016 , the fair value of the Company’s total debt was estimated to be $908.7 million and $854.4 million , respectively, compared to a carrying amount of $887.9 million and $858.0 million , respectively. The fair value was estimated by management based upon estimates of debt pricing provided by financial institutions, which are considered Level 2 inputs.

Business Segment Information

Business Segment Information	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Business Segment Information	14. Business Segment Information The Company reports its business through three segments: Domestic Coke, Brazil Coke and Coal Logistics. The Domestic Coke segment includes the Jewell, Indiana Harbor, Haverhill, Granite City and Middletown cokemaking facilities. Each of these facilities produces coke, and all facilities except Jewell and Indiana Harbor recover waste heat, which is converted to steam or electricity through a similar production process. Steam is provided to customers pursuant to steam supply and purchase agreements. Electricity is sold into the regional power market or to AK Steel Holding Corporation ("AK Steel") pursuant to energy sales agreements. Coke sales at each of the Company's five domestic cokemaking facilities are made pursuant to long-term, take-or-pay agreements with ArcelorMittal S.A., AK Steel, and United States Steel Corporation. Each of the coke sales agreements contains pass-through provisions for costs incurred in the cokemaking process, including coal procurement costs (subject to meeting contractual coal-to-coke yields), operating and maintenance expense, costs related to the transportation of coke to the customers, taxes (other than income taxes) and costs associated with changes in regulation, in addition to containing a fixed fee. The Brazil Coke segment operates a cokemaking facility located in Vitória, Brazil for a project company. The Brazil Coke segment earns income from the Brazilian facility through licensing and operating fees payable to us under long-term contracts with the local project company that will run through at least 2023 . Coal Logistics operations are comprised of CMT, located in Louisiana, KRT, located in West Virginia, SunCoke Lake Terminal, located in Indiana, and DRT, located in Virginia adjacent to our Jewell cokemaking facility. Our logistics operations have a collective capacity to mix and transload approximately 40 million tons of coal and other aggregates annually and provide handling and/or mixing services to its customers, which include the Partnership's cokemaking facilities and other SunCoke cokemaking facilities. Handling and mixing results are presented in the Coal Logistics segment. Corporate expenses that can be identified with a segment have been included in determining segment results. The remainder is included in Corporate and Other. Corporate and Other also includes activity from our legacy coal mining business, which was historically presented as a separate reportable segment. Prior year periods have been recasted to reflect current presentation. Segment assets, net of tax are those assets utilized within a specific segment and exclude deferred taxes and current tax receivables. The following table includes Adjusted EBITDA, which is the measure of segment profit or loss and liquidity reported to the chief operating decision maker for purposes of allocating resources to the segments and assessing their performance: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Sales and other operating revenue: Domestic Coke $ 309.7 $ 273.2 $ 884.9 $ 836.2 Brazil Coke 10.9 8.5 32.2 23.5 Coal Logistics 18.4 12.2 54.8 36.5 Coal Logistics intersegment sales 4.8 4.9 15.0 15.3 Corporate and Other (1) — — — 1.5 Corporate and Other intersegment sales (1) — — — 22.0 Elimination of intersegment sales (4.8 ) (4.9 ) (15.0 ) (37.3 ) Total sales and other operating revenues $ 339.0 $ 293.9 $ 971.9 $ 897.7 Adjusted EBITDA: Domestic Coke $ 55.6 $ 52.1 $ 149.3 $ 157.4 Brazil Coke 4.6 3.2 13.5 7.9 Coal Logistics 12.6 7.3 35.7 18.6 Corporate and Other (2) (10.7 ) (13.2 ) (33.3 ) (44.2 ) Total Adjusted EBITDA $ 62.1 $ 49.4 $ 165.2 $ 139.7 Depreciation and amortization expense: Domestic Coke $ 24.0 $ 19.1 $ 77.4 $ 59.1 Brazil Coke 0.2 0.1 0.5 0.5 Coal Logistics 6.1 5.6 18.3 19.0 Corporate and Other 0.3 0.8 1.0 3.8 Total depreciation and amortization expense $ 30.6 $ 25.6 $ 97.2 $ 82.4 Capital expenditures: Domestic Coke $ 26.0 $ 8.4 $ 45.9 $ 25.3 Coal Logistics 0.5 3.9 1.8 16.3 Corporate and Other 0.7 0.4 1.9 1.3 Total capital expenditures $ 27.2 $ 12.7 $ 49.6 $ 42.9 (1) Corporate and Other revenues are related to our legacy coal mining business. (2) Corporate and Other includes the activity from our legacy coal mining business, which incurred Adjusted EBITDA losses of $2.0 million and $8.2 million during the three and nine months ended September 30, 2017, respectively, as well as losses of $2.5 million and $11.8 million during the three and nine months ended September 30, 2016, respectively. The following table sets forth the Company's segment assets: September 30, 2017 December 31, 2016 (Dollars in millions) Segment assets Domestic Coke $ 1,488.9 $ 1,495.0 Brazil Coke 12.0 32.6 Coal Logistics 499.4 515.6 Corporate and Other 105.6 73.1 Segment assets, excluding tax assets 2,105.9 2,116.3 Tax assets 9.0 4.6 Total assets $ 2,114.9 $ 2,120.9 The following table sets forth the Company’s total sales and other operating revenue by product or service: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Sales and other operating revenue: Cokemaking $ 293.0 $ 257.8 $ 839.1 $ 789.5 Energy 14.7 14.1 39.3 43.0 Logistics 17.0 11.8 52.1 35.4 Operating and licensing fees 10.9 8.4 32.2 23.5 Other 3.4 1.8 9.2 6.3 Sales and other operating revenue $ 339.0 $ 293.9 $ 971.9 $ 897.7 The Company evaluates the performance of its segments based on segment Adjusted EBITDA, which is defined as earnings before interest, loss (gain) on extinguishment of debt, taxes, depreciation and amortization (“EBITDA”), adjusted for impairments, coal rationalization costs, changes to our contingent consideration liability related to our acquisition of CMT and the expiration of certain acquired contractual obligations. EBITDA and Adjusted EBITDA do not represent and should not be considered alternatives to net income or operating income under GAAP and may not be comparable to other similarly titled measures in other businesses. Management believes Adjusted EBITDA is an important measure of the operating performance and liquidity of the Company's net assets and its ability to incur and service debt, fund capital expenditures and make distributions. Adjusted EBITDA provides useful information to investors because it highlights trends in our business that may not otherwise be apparent when relying solely on GAAP measures and because it eliminates items that have less bearing on our operating performance and liquidity. EBITDA and Adjusted EBITDA are not measures calculated in accordance with GAAP, and they should not be considered a substitute for net income, operating cash flow or any other measure of financial performance presented in accordance with GAAP. Set forth below is additional discussion of the limitations of Adjusted EBITDA as an analytical tool. Limitations. Other companies may calculate Adjusted EBITDA differently than we do, limiting its usefulness as a comparative measure. Adjusted EBITDA also has limitations as an analytical tool and should not be considered in isolation or as a substitute for an analysis of our results as reported under GAAP. Some of these limitations include that Adjusted EBITDA: • does not reflect our cash expenditures, or future requirements, for capital expenditures or contractual commitments; • does not reflect items such as depreciation and amortization; • does not reflect changes in, or cash requirement for, working capital needs; • does not reflect our interest expense, or the cash requirements necessary to service interest on or principal payments of our debt; • does not reflect certain other non-cash income and expenses; • excludes income taxes that may represent a reduction in available cash; and • includes net income attributable to noncontrolling interests. Below is a reconciliation of Adjusted EBITDA to net income and net cash provided by operating activities, which are its most directly comparable financial measures calculated and presented in accordance with GAAP: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Net cash provided by operating activities $ 73.9 $ 44.6 $ 128.3 $ 166.1 Subtract: Loss on divestiture of business — — — 14.7 Depreciation and amortization expense 30.6 25.6 97.2 82.4 Deferred income tax expense (9.4 ) 0.9 70.4 4.5 Loss (gain) on extinguishment of debt 0.1 (1.0 ) 20.4 (24.9 ) Changes in working capital and other 33.8 4.7 10.7 61.4 Net income (loss) $ 18.8 $ 14.4 $ (70.4 ) $ 28.0 Add: Coal rationalization costs (1) $ — $ 0.2 $ — $ 0.4 Depreciation and amortization expense 30.6 25.6 97.2 82.4 Interest expense, net 16.1 12.9 45.0 40.3 Loss (gain) on extinguishment of debt 0.1 (1.0 ) 20.4 (24.9 ) Income tax (benefit) expense (1.5 ) 2.6 69.4 5.9 Contingent consideration adjustments (2) (2.0 ) (4.6 ) (1.7 ) (8.3 ) Expiration of land deposits and write-off of costs related to potential new cokemaking facility (3) — — 5.3 1.9 Loss on divestiture of business — — — 14.7 Non-cash reversal of acquired contractual obligation (4) — (0.7 ) — (0.7 ) Adjusted EBITDA (5) $ 62.1 $ 49.4 $ 165.2 $ 139.7 Subtract: Adjusted EBITDA attributable to noncontrolling interest (6) 21.9 18.9 61.0 57.8 Adjusted EBITDA attributable to SunCoke Energy, Inc. $ 40.2 $ 30.5 $ 104.2 $ 81.9 (1) Prior to the divestiture of our coal mining business, the Company incurred coal rationalization costs including employee severance, contract termination costs and other costs to idle mines incurred during the execution of our coal rationalization plan. (2) As a result of changes in the fair value of the contingent consideration liability, the Partnership recognized a benefit of $2.0 million and $1.7 million during the three and nine months ended September 30, 2017, respectively. The Partnership amended its contingent consideration terms with The Cline Group during the first quarter of 2016. This amendment and subsequent fair value adjustments resulted in a gain of $4.6 million and $8.3 million recorded during the three and nine months ended September 30, 2016, respectively. (3) In 2014, we finalized the required permitting and engineering plan for a potential new cokemaking facility to be constructed in Kentucky. However, in June 2017, due to our focus on renewing our existing customer contracts and the lack of any long-term customer commitment for a majority of the facility's capacity, we decided to terminate the project. As a result, during the nine months ended September 30, 2017, the Company wrote-off previously capitalized engineering and land deposit costs of $5.3 million . During the nine months ended September 30, 2016, the Company wrote-off expiring land deposits related to the project of $1.9 million . (4) In association with the acquisition of CMT, we assumed certain performance obligations under existing contracts and recorded liabilities related to such obligations. In the third quarter of 2016, the final acquired contractual performance obligation expired without the customer requiring performance. Therefore, the Partnership reversed the liability as we no longer have any obligations under the contract. (5) In accordance with the SEC’s May 2016 update of its guidance on the appropriate use of non-GAAP financial measures, Adjusted EBITDA does not include Coal Logistics deferred revenue until it is recognized as GAAP revenue. (6) Reflects noncontrolling interest in Indiana Harbor and the portion of the Partnership owned by public unitholders.

Supplemental Condensed Consolid

Supplemental Condensed Consolidating Financial Information	9 Months Ended
	Sep. 30, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Supplemental Condensed Consolidating Financial Information	15. Supplemental Condensed Consolidating Financial Information Certain 100 percent owned subsidiaries of the Company serve as guarantors of the obligations under the Credit Agreement and $44.6 million of Notes (“Guarantor Subsidiaries”). These guarantees are full and unconditional (subject, in the case of the Guarantor Subsidiaries, to customary release provisions as described below) and joint and several. For purposes of the following footnote, SunCoke Energy, Inc. is referred to as “Issuer.” The indenture dated July 26, 2011 among the Company, the guarantors party thereto and The Bank of New York Mellon Trust Company, N.A., governs subsidiaries designated as “Guarantor Subsidiaries.” All other consolidated subsidiaries of the Company are collectively referred to as “Non-Guarantor Subsidiaries.” The ability of the Partnership and Indiana Harbor to pay dividends and make loans to the Company is restricted under the partnership agreements of the Partnership and Indiana Harbor, respectively. The credit agreement governing the Partnership’s credit facility and the indenture governing the Partnership Notes contain customary provisions which would potentially restrict the Partnership’s ability to make distributions or loans to the Company under certain circumstances. For the year ended December 31, 2016, less than 25 percent of net assets were restricted. Additionally, certain coal mining entities are designated as unrestricted subsidiaries. As such, all the subsidiaries described above are presented as "Non-Guarantor Subsidiaries." There have been no changes to the "Guarantor Subsidiaries" and "Non-Guarantor Subsidiaries" during 2017. The guarantee of a Guarantor Subsidiary will terminate upon: • a sale or other disposition of the Guarantor Subsidiary or of all or substantially all of its assets; • a sale of the majority of the Capital Stock of a Guarantor Subsidiary to a third-party, after which the Guarantor Subsidiary is no longer a "Restricted Subsidiary" in accordance with the indenture governing the Notes; • the liquidation or dissolution of a Guarantor Subsidiary so long as no "Default" or "Event of Default", as defined under the indenture governing the Notes, has occurred as a result thereof; • the designation of a Guarantor Subsidiary as an "unrestricted subsidiary" in accordance with the indenture governing the Notes; • the requirements for defeasance or discharge of the indentures governing the Notes having been satisfied; and • the release, other than the discharge through payments by a Guarantor Subsidiary, from its guarantee under the Credit Agreement or other indebtedness that resulted in the obligation of the Guarantor Subsidiary under the indenture governing the Notes. The following supplemental condensed combining and consolidating financial information reflects the Issuer’s separate accounts, the combined accounts of the Guarantor Subsidiaries, the combined accounts of the Non-Guarantor Subsidiaries, the combining and consolidating adjustments and eliminations and the Issuer’s consolidated accounts for the dates and periods indicated. For purposes of the following condensed combining and consolidating information, the Issuer’s investments in its subsidiaries and the Guarantor and Non-Guarantor Subsidiaries’ investments in its subsidiaries are accounted for under the equity method of accounting. SunCoke Energy, Inc. Condensed Consolidating Statement of Operations Three Months Ended September 30, 2017 (Dollars in millions) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Revenues Sales and other operating revenue $ — $ 53.6 $ 286.5 $ (1.1 ) $ 339.0 Equity in earnings (loss) of subsidiaries 14.2 6.6 — (20.8 ) — Total revenues, net of equity earnings (loss) of subsidiaries 14.2 60.2 286.5 (21.9 ) 339.0 Costs and operating expenses Cost of products sold and operating expense — 40.5 217.8 (1.1 ) 257.2 Selling, general and administrative expense 1.5 3.4 12.8 — 17.7 Depreciation and amortization expense — 1.8 28.8 — 30.6 Total costs and operating expenses 1.5 45.7 259.4 (1.1 ) 305.5 Operating income 12.7 14.5 27.1 (20.8 ) 33.5 Interest (income) expense, net - affiliate — (1.9 ) 1.9 — — Interest expense (income), net 1.3 (0.1 ) 14.9 — 16.1 Total interest expense (income), net 1.3 (2.0 ) 16.8 — 16.1 Loss on extinguishment of debt — — 0.1 — 0.1 Income before income tax benefit 11.4 16.5 10.2 (20.8 ) 17.3 Income tax benefit (0.2 ) (1.2 ) (0.1 ) — (1.5 ) Net income 11.6 17.7 10.3 (20.8 ) 18.8 Less: Net income attributable to noncontrolling interests — — 7.2 — 7.2 Net income attributable to SunCoke Energy, Inc. $ 11.6 $ 17.7 $ 3.1 $ (20.8 ) $ 11.6 Comprehensive income $ 12.0 $ 17.7 $ 10.7 $ (21.2 ) $ 19.2 Less: Comprehensive income attributable to noncontrolling interests — — 7.2 — 7.2 Comprehensive income attributable to SunCoke Energy, Inc. $ 12.0 $ 17.7 $ 3.5 $ (21.2 ) $ 12.0 SunCoke Energy, Inc. Condensed Consolidating Statement of Operations Three Months Ended September 30, 2016 (Dollars in millions) Issuer Guarantor Non- Combining Total Revenues Sales and other operating revenue $ — $ 43.0 $ 251.9 $ (1.0 ) $ 293.9 Equity in earnings (loss) of subsidiaries 3.5 15.4 — (18.9 ) — Total revenues, net of equity in earnings (loss) of subsidiaries 3.5 58.4 251.9 (19.9 ) 293.9 Costs and operating expenses Cost of products sold and operating expenses — 31.9 186.7 (1.0 ) 217.6 Selling, general and administrative expenses 3.1 6.3 12.4 — 21.8 Depreciation and amortization expense — 2.4 23.2 — 25.6 Total costs and operating expenses 3.1 40.6 222.3 (1.0 ) 265.0 Operating income (loss) 0.4 17.8 29.6 (18.9 ) 28.9 Interest (income) expense, net - affiliate — (1.8 ) 1.8 — — Interest expense, net 1.4 — 11.5 — 12.9 Total interest expense (income), net 1.4 (1.8 ) 13.3 — 12.9 Gain on extinguishment of debt — — (1.0 ) — (1.0 ) (Loss) income before income tax expense (1.0 ) 19.6 17.3 (18.9 ) 17.0 Income tax (benefit) expense (7.1 ) 12.6 (2.9 ) — 2.6 Net income (loss) 6.1 7.0 20.2 (18.9 ) 14.4 Less: Net income attributable to noncontrolling interests — — 8.3 — 8.3 Net income (loss) attributable to SunCoke Energy, Inc. $ 6.1 $ 7.0 $ 11.9 $ (18.9 ) $ 6.1 Comprehensive income (loss) $ 6.0 $ 6.9 $ 20.1 $ (18.7 ) $ 14.3 Less: Comprehensive income attributable to noncontrolling interests — — 8.3 — 8.3 Comprehensive income (loss) attributable to SunCoke Energy, Inc. $ 6.0 $ 6.9 $ 11.8 $ (18.7 ) $ 6.0 SunCoke Energy, Inc. Condensed Consolidating Statements of Operations Nine Months Ended September 30, 2017 (Dollars in millions) Issuer Guarantor Non- Combining Total Revenues Sales and other operating revenue $ — $ 156.0 $ 819.2 $ (3.3 ) $ 971.9 Equity in earnings (loss) of subsidiaries 0.7 (95.5 ) — 94.8 — Total revenues, net of equity in earnings (loss) of subsidiaries 0.7 60.5 819.2 91.5 971.9 Costs and operating expenses Cost of products sold and operating expense — 116.0 636.1 (3.3 ) 748.8 Selling, general and administrative expense 6.5 18.4 36.6 — 61.5 Depreciation and amortization expense — 5.6 91.6 — 97.2 Total costs and operating expenses 6.5 140.0 764.3 (3.3 ) 907.5 Operating (loss) income (5.8 ) (79.5 ) 54.9 94.8 64.4 Interest (income) expense, net - affiliate — (5.6 ) 5.6 — — Interest expense (income), net 3.8 (0.3 ) 41.5 — 45.0 Total interest expense (income), net 3.8 (5.9 ) 47.1 — 45.0 Loss on extinguishment of debt 0.4 — 20.0 — 20.4 (Loss) income before income tax expense (10.0 ) (73.6 ) (12.2 ) 94.8 (1.0 ) Income tax expense (benefit) 1.6 (87.2 ) 155.0 — 69.4 Net (loss) income (11.6 ) 13.6 (167.2 ) 94.8 (70.4 ) Less: Net loss attributable to noncontrolling interests — — (58.8 ) — (58.8 ) Net (loss) income attributable to SunCoke Energy, Inc. $ (11.6 ) $ 13.6 $ (108.4 ) $ 94.8 $ (11.6 ) Comprehensive (loss) income $ (11.4 ) $ 13.6 $ (167.0 ) $ 94.6 $ (70.2 ) Less: Comprehensive loss attributable to noncontrolling interests — — (58.8 ) — (58.8 ) Comprehensive (loss) income attributable to SunCoke Energy, Inc. $ (11.4 ) $ 13.6 $ (108.2 ) $ 94.6 $ (11.4 ) SunCoke Energy, Inc. Condensed Consolidating Statements of Operations Nine Months Ended September 30, 2016 (Dollars in millions) Issuer Guarantor Non- Combining Total Revenues Sales and other operating revenue $ — $ 127.9 $ 772.8 $ (3.0 ) $ 897.7 Equity in earnings (loss) of subsidiaries 2.1 26.7 — (28.8 ) — Total revenues, net of equity in earnings (loss) of subsidiaries 2.1 154.6 772.8 (31.8 ) 897.7 Costs and operating expenses Cost of products sold and operating expense — 97.4 588.1 (3.0 ) 682.5 Selling, general and administrative expense 8.9 22.1 37.8 — 68.8 Depreciation and amortization expense — 6.9 75.5 — 82.4 Loss on divestiture of business — — 14.7 — 14.7 Total costs and operating expenses 8.9 126.4 716.1 (3.0 ) 848.4 Operating (loss) income (6.8 ) 28.2 56.7 (28.8 ) 49.3 Interest (income) expense, net - affiliate — (5.7 ) 5.7 — — Interest expense, net 4.6 — 35.7 — 40.3 Total interest expense (income), net 4.6 (5.7 ) 41.4 — 40.3 Gain on extinguishment of debt — — (24.9 ) — (24.9 ) (Loss) income before income tax (benefit) expense (11.4 ) 33.9 40.2 (28.8 ) 33.9 Income tax (benefit) expense (8.8 ) 19.7 (5.0 ) — 5.9 Net (loss) income (2.6 ) 14.2 45.2 (28.8 ) 28.0 Less: Net income attributable to noncontrolling interests — — 30.6 — 30.6 Net (loss) income attributable to SunCoke Energy, Inc. $ (2.6 ) $ 14.2 $ 14.6 $ (28.8 ) $ (2.6 ) Comprehensive (loss) income $ (1.6 ) $ 14.1 $ 46.2 $ (29.7 ) $ 29.0 Less: Comprehensive income attributable to noncontrolling interests — — 30.6 — 30.6 Comprehensive (loss) income attributable to SunCoke Energy, Inc. $ (1.6 ) $ 14.1 $ 15.6 $ (29.7 ) $ (1.6 ) SunCoke Energy, Inc. Condensed Consolidating Balance Sheet September 30, 2017 (Dollars in millions, except per share amounts) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Assets Cash and cash equivalents $ — $ 100.2 $ 48.5 $ — $ 148.7 Receivables — 15.0 55.2 — 70.2 Inventories — 10.4 111.3 — 121.7 Income tax receivable — — 85.6 (76.6 ) 9.0 Other current assets — 2.3 4.8 — 7.1 Advances to affiliate — 248.8 — (248.8 ) — Total current assets — 376.7 305.4 (325.4 ) 356.7 Notes receivable from affiliate — 89.0 300.0 (389.0 ) — Properties, plants and equipment, net — 60.3 1,445.1 — 1,505.4 Goodwill — 3.4 73.5 — 76.9 Other intangible assets, net — 1.8 168.9 — 170.7 Deferred charges and other assets — 4.1 1.1 — 5.2 Investment in subsidiaries 530.6 723.5 — (1,254.1 ) — Total assets $ 530.6 $ 1,258.8 $ 2,294.0 $ (1,968.5 ) $ 2,114.9 Liabilities and Equity Advances from affiliate $ 165.2 $ — $ 83.6 $ (248.8 ) $ — Accounts payable — 17.2 120.9 — 138.1 Accrued liabilities 1.0 16.2 33.9 — 51.1 Deferred revenue — — 16.6 — 16.6 Current portion of long-term debt and financing obligation — — 2.6 — 2.6 Interest payable 0.6 — 17.0 — 17.6 Income taxes payable 1.2 75.4 — (76.6 ) — Total current liabilities 168.0 108.8 274.6 (325.4 ) 226.0 Long-term debt and financing obligation 42.7 — 816.3 — 859.0 Payable to affiliate — 300.0 89.0 (389.0 ) — Accrual for black lung benefits — 13.0 32.8 — 45.8 Retirement benefit liabilities — 13.6 13.8 — 27.4 Deferred income taxes 21.7 265.9 130.3 — 417.9 Asset retirement obligations — — 14.1 — 14.1 Other deferred credits and liabilities 3.0 6.8 6.2 — 16.0 Total liabilities 235.4 708.1 1,377.1 (714.4 ) 1,606.2 Equity Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at September 30, 2017 — — — — — Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,819,720 shares at September 30, 2017 0.7 — — — 0.7 Treasury stock, 7,477,657 shares at September 30, 2017 (140.7 ) — — — (140.7 ) Additional paid-in capital 487.9 188.9 643.4 (832.3 ) 487.9 Accumulated other comprehensive (loss) income (18.8 ) (1.6 ) (17.3 ) 18.9 (18.8 ) Retained (deficit) earnings (33.9 ) 363.4 77.3 (440.7 ) (33.9 ) Total SunCoke Energy, Inc. stockholders’ equity 295.2 550.7 703.4 (1,254.1 ) 295.2 Noncontrolling interests — — 213.5 — 213.5 Total equity 295.2 550.7 916.9 (1,254.1 ) 508.7 Total liabilities and equity $ 530.6 $ 1,258.8 $ 2,294.0 $ (1,968.5 ) $ 2,114.9 SunCoke Energy, Inc. Condensed Consolidating Balance Sheet December 31, 2016 (Dollars in millions, except per share amounts) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Assets Cash and cash equivalents $ — $ 59.7 $ 74.3 $ — $ 134.0 Receivables — 12.2 48.5 — 60.7 Receivable from redemption of investment in Brazil — — 20.5 — 20.5 Inventories — 9.0 83.5 — 92.5 Income tax receivable 17.8 — 74.3 (87.5 ) 4.6 Other current assets 0.2 1.8 1.8 — 3.8 Advances to affiliate — 282.2 — (282.2 ) — Total current assets 18.0 364.9 302.9 (369.7 ) 316.1 Notes receivable from affiliate — 89.0 300.0 (389.0 ) — Properties, plants and equipment, net — 62.8 1,479.8 — 1,542.6 Goodwill — 3.4 73.5 — 76.9 Other intangible assets, net — 2.3 176.7 — 179.0 Deferred charges and other assets — 5.1 1.2 — 6.3 Investment in subsidiaries 542.7 688.2 — (1,230.9 ) — Total assets $ 560.7 $ 1,215.7 $ 2,334.1 $ (1,989.6 ) $ 2,120.9 Liabilities and Equity Advances from affiliate $ 184.2 $ — $ 98.0 $ (282.2 ) $ — Accounts payable — 13.6 85.0 — 98.6 Accrued liabilities 1.7 20.5 27.6 — 49.8 Deferred revenue — — 2.5 — 2.5 Current portion of long-term debt and financing obligation — — 4.9 — 4.9 Interest payable 1.5 — 14.7 — 16.2 Income taxes payable — 87.5 — (87.5 ) — Total current liabilities 187.4 121.6 232.7 (369.7 ) 172.0 Long-term debt and financing obligation 43.5 — 805.7 — 849.2 Payable to affiliate — 300.0 89.0 (389.0 ) — Accrual for black lung benefits — 12.3 33.1 — 45.4 Retirement benefit liabilities — 14.1 14.9 — 29.0 Deferred income taxes 15.9 371.0 (34.4 ) — 352.5 Asset retirement obligations — — 13.9 — 13.9 Other deferred credits and liabilities 2.8 6.4 9.8 — 19.0 Total liabilities 249.6 825.4 1,164.7 (758.7 ) 1,481.0 Equity Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at December 31, 2016 — — — — — Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,707,304 shares at December 31, 2016 0.7 — — — 0.7 Treasury Stock, 7,477,657 shares at December 31, 2016 (140.7 ) — — — (140.7 ) Additional paid-in capital 492.1 42.1 672.2 (714.3 ) 492.1 Accumulated other comprehensive (loss) income (19.0 ) (1.6 ) (17.4 ) 19.0 (19.0 ) Retained (deficit) earnings (22.0 ) 349.8 185.8 (535.6 ) (22.0 ) Total SunCoke Energy, Inc. stockholders’ equity 311.1 390.3 840.6 (1,230.9 ) 311.1 Noncontrolling interests — — 328.8 — 328.8 Total equity 311.1 390.3 1,169.4 (1,230.9 ) 639.9 Total liabilities and equity $ 560.7 $ 1,215.7 $ 2,334.1 $ (1,989.6 ) $ 2,120.9 SunCoke Energy, Inc. Condensed Consolidating Statement of Cash Flows Nine Months Ended September 30, 2017 (Dollars in millions) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Cash Flows from Operating Activities: Net (loss) income $ (11.6 ) $ 13.6 $ (167.2 ) $ 94.8 $ (70.4 ) Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities: Depreciation and amortization expense — 5.6 91.6 — 97.2 Deferred income tax expense (benefit) 6.0 (100.3 ) 164.7 — 70.4 Payments in excess of expense for postretirement plan benefits — (0.5 ) (1.1 ) — (1.6 ) Share-based compensation expense 3.9 — 0.2 — 4.1 Equity in (earnings) loss of subsidiaries (0.7 ) 95.5 — (94.8 ) — Loss on extinguishment of debt 0.4 — 20.0 — 20.4 Changes in working capital pertaining to operating activities: Receivables — (2.8 ) (6.7 ) — (9.5 ) Inventories — (1.4 ) (27.8 ) — (29.2 ) Accounts payable — 4.3 28.6 — 32.9 Accrued liabilities (0.7 ) (4.3 ) 6.3 — 1.3 Deferred revenue — — 14.1 — 14.1 Interest payable (0.9 ) — 2.3 — 1.4 Income taxes 19.0 (12.1 ) (11.3 ) — (4.4 ) Other 0.9 1.6 (0.9 ) — 1.6 Net cash provided by (used in) operating activities 16.3 (0.8 ) 112.8 — 128.3 Cash Flows from Investing Activities: Capital expenditures — (3.3 ) (46.3 ) — (49.6 ) Decrease in restricted cash — — 0.1 — 0.1 Return of Brazilian investment — — 20.5 — 20.5 Net cash (used in) provided by investing activities — (3.3 ) (25.7 ) — (29.0 ) Cash Flows from Financing Activities: Proceeds from issuance of long-term debt — — 620.6 — 620.6 Repayment of long-term debt — — (644.9 ) — (644.9 ) Repayment of financing obligation — — (1.8 ) — (1.8 ) Proceeds from revolving facility — — 268.0 — 268.0 Repayment of revolving facility — — (240.0 ) — (240.0 ) Debt issuance costs (1.7 ) — (14.9 ) — (16.6 ) Acquisition of additional interest in the Partnership — (33.6 ) — — (33.6 ) Cash distribution to noncontrolling interests — — (36.0 ) — (36.0 ) Other financing activities (0.3 ) — — — (0.3 ) Net (decrease) increase in advances from affiliate (14.3 ) 78.2 (63.9 ) — — Net cash (used in) provided by financing activities (16.3 ) 44.6 (112.9 ) — (84.6 ) Net increase (decrease) in cash and cash equivalents — 40.5 (25.8 ) — 14.7 Cash and cash equivalents at beginning of period — 59.7 74.3 — 134.0 Cash and cash equivalents at end of period $ — $ 100.2 $ 48.5 $ — $ 148.7 SunCoke Energy, Inc. Condensed Consolidating Statement of Cash Flows Nine Months Ended September 30, 2016 (Dollars in millions) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Cash Flows from Operating Activities: Net (loss) income $ (2.6 ) $ 14.2 $ 45.2 $ (28.8 ) $ 28.0 Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities: Loss of divestiture of business — — 14.7 — 14.7 Depreciation and amortization expense — 6.9 75.5 — 82.4 Deferred income tax (benefit) expense (7.8 ) 15.9 (3.6 ) — 4.5 Payments in excess of expense for postretirement plan benefits — (0.8 ) (1.2 ) — (2.0 ) Share-based compensation expense 5.0 — — — 5.0 Equity in (earnings) loss of subsidiaries (2.1 ) (26.7 ) — 28.8 — Gain on extinguishment of debt — — (24.9 ) — (24.9 ) Changes in working capital pertaining to operating activities (net of the effects of divestiture): Receivables — (0.2 ) 10.5 — 10.3 Inventories — (4.0 ) 28.1 — 24.1 Accounts payable — 6.1 (9.6 ) — (3.5 ) Accrued liabilities 0.5 4.1 2.1 — 6.7 Deferred revenue — — 25.5 — 25.5 Interest payable (0.9 ) — (11.2 ) — (12.1 ) Income taxes (13.1 ) 3.1 14.4 — 4.4 Other 3.1 8.8 (8.9 ) — 3.0 Net cash (used in) provided by operating activities (17.9 ) 27.4 156.6 — 166.1 Cash Flows from Investing Activities: Capital expenditures — (4.3 ) (38.6 ) — (42.9 ) Decrease in restricted cash — — 17.5 — 17.5 Divestiture of business — — (12.8 ) — (12.8 ) Other investing activities — — 2.1 — 2.1 Net cash used in investing activities — (4.3 ) (31.8 ) — (36.1 ) Cash Flows from Financing Activities: Net proceeds from issuance of SunCoke Energy Partners, L.P. units — — — — — Repayment of long-term debt — — (60.8 ) — (60.8 ) Proceeds from revolving facility — — 20.0 — 20.0 Repayments of revolving facility (60.4 ) — (25.0 ) — (85.4 ) Debt issuance cost — — (0.2 ) — (0.2 ) Proceeds from financing obligation — — 16.2 — 16.2 Repayment of financing obligation — — (0.5 ) — (0.5 ) Cash distribution to noncontrolling interests — (36.9 ) — (36.9 ) Other financing activities (0.3 ) (0.2 ) — — (0.5 ) Net increase (decrease) in advances from affiliates 78.6 (64.4 ) (14.2 ) — — Net cash provided by (used in) financing activities 17.9 (64.6 ) (101.4 ) — (148.1 ) Net (decrease) increase in cash and cash equivalents — (41.5 ) 23.4 — (18.1 ) Cash and cash equivalents at beginning of period — 70.6 52.8 — 123.4 Cash and cash equivalents at end of period $ — $ 29.1 $ 76.2 $ — $ 105.3

General (Policies)

General (Policies)	9 Months Ended
	Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements In May 2014, Financial Accounting Standards Board ("FASB") Accounting Standards Update ("ASU") 2014-09, “Revenue from Contracts with Customers (Topic 606),” which supersedes the revenue recognition requirements in “Revenue Recognition (Topic 605),” and requires entities to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Subsequently, the FASB has issued various ASUs to provide further clarification around certain aspects of ASC 606. This standard will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period, and early adoption is permitted on a limited basis. Our implementation team has gained an understanding of the standard’s revenue recognition model and is completing the analysis and documentation of our contract details for impacts under the new revenue recognition model. Based on the current status of our assessment, we expect the timing of our revenue recognition to generally remain the same under the new standard on an annual basis. Deferred revenue at CMT may be recognized on a more accelerated basis during quarterly periods within the year based on facts and circumstances considered at each quarter under the new guidance. The Company expects to adopt this standard on January 1, 2018 using the modified retrospective method. In February 2016, the FASB issued ASU 2016-02, "Leases (Topic 842)." ASU 2016-02 requires lessees to be recognized as 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 annual and interim periods in fiscal years beginning after December 15, 2018, with early adoption permitted. The standard requires the use of a modified retrospective transition method. A multi-disciplined implementation team has gained an understanding of the accounting and disclosure provisions of the standard and is in the process of analyzing the impacts to our business, including the development of new accounting processes to account for our leases and support the required disclosures. While we are still evaluating the impact of adopting this standard, we expect that upon adoption the right-of-use assets and lease liabilities, such as various plant equipment rentals and the lease of our corporate office space, will increase the reported assets and liabilities on our Consolidated Balance Sheets. The Company expects to adopt this standard on January 1, 2019.

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2017
Inventory Disclosure [Abstract]
Components of Inventories	The components of inventories were as follows: September 30, 2017 December 31, 2016 (Dollars in millions) Coal $ 74.0 $ 49.4 Coke 10.9 7.7 Materials, supplies and other 36.8 35.4 Total inventories $ 121.7 $ 92.5

Goodwill and Other Intangible26

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	The components of other intangible assets, net were as follows: September 30, 2017 December 31, 2016 Weighted - Average Remaining Amortization Years Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net (Dollars in millions) Customer contracts 5 $ 31.7 $ 12.8 $ 18.9 $ 31.7 $ 9.9 $ 21.8 Customer relationships 14 28.7 5.2 23.5 28.7 3.8 24.9 Permits 25 139.0 10.9 128.1 139.0 7.1 131.9 Trade name 1 1.2 1.0 0.2 1.2 0.8 0.4 Total $ 200.6 $ 29.9 $ 170.7 $ 200.6 $ 21.6 $ 179.0

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	9 Months Ended
	Sep. 30, 2017
Payables and Accruals [Abstract]
Accrued Liabilities	Accrued liabilities consisted of the following: September 30, 2017 December 31, 2016 (Dollars in millions) Accrued benefits $ 19.1 $ 21.4 Current portion of postretirement benefit obligation 3.3 3.3 Other taxes payable 12.4 10.4 Current portion of black lung liability 4.8 4.8 Accrued legal 6.0 4.4 Other 5.5 5.5 Total accrued liabilities $ 51.1 $ 49.8

Debt and Financing Obligation (

Debt and Financing Obligation (Tables)	9 Months Ended
	Sep. 30, 2017
Debt Disclosure [Abstract]
Schedule of Total Debt	Total debt and financing obligation, including the current portion of long-term debt and financing obligation, consisted of the following: September 30, 2017 December 31, 2016 (Dollars in millions) 7.500 percent senior notes, due 2025 ("2025 Partnership Notes") $ 630.0 $ — 7.375 percent senior notes, due 2020 (''2020 Partnership Notes'') — 463.0 7.625 percent senior notes, due 2019 ("Notes") 44.6 44.6 Partnership's term loan, due 2019 ("Partnership Term Loan") — 50.0 SunCoke's revolving credit facility, due 2022 ("Revolving Facility") — — Partnership's revolving credit facility, due 2022 and 2019, respectively ("Partnership Revolver") 200.0 172.0 Partnership's promissory note payable, due 2021 ("Promissory Note") — 113.2 5.82 percent financing obligation, due 2021 ("Partnership Financing Obligation") 13.3 15.2 Total borrowings 887.9 858.0 Original issue (discount) premium (9.1 ) 7.5 Debt issuance costs (17.2 ) (11.4 ) Total debt and financing obligation 861.6 854.1 Less: current portion of long-term debt and financing obligation 2.6 4.9 Total long-term debt and financing obligation $ 859.0 $ 849.2

Retirement Benefits Plans (Tabl

Retirement Benefits Plans (Tables)	9 Months Ended
	Sep. 30, 2017
Retirement Benefits [Abstract]
Postretirement Benefit Plans Expense (Benefit)	The postretirement benefit plans are unfunded and the costs are borne by the Company. The expense from these plans consisted of the following components: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Interest cost on benefit obligations $ 0.3 $ 0.3 $ 0.9 $ 0.9 Amortization of: Actuarial losses 0.3 0.2 0.7 0.6 Prior service benefit (0.2 ) (0.2 ) (0.6 ) (0.6 ) Total expense $ 0.4 $ 0.3 $ 1.0 $ 0.9

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation, Stock Options, Activity	The Company granted the following performance share units ("PSUs") for shares of the Company's common stock during the nine months ended September 30, 2017 that vest on December 31, 2019 : Shares Fair Value per Share PSUs (1)(2) 237,610 $ 11.40 (1) The PSU awards are split 50 /50 between the Company's three year cumulative Adjusted EBITDA performance measure and the Company's three -year average pre-tax return on capital performance measure for its coke and logistics businesses and unallocated corporate expenses. (2) The number of PSU's ultimately awarded will be determined by the above performance versus targets and the Company's three -year total shareholder return ("TSR") as compared to the TSR of the companies making up the Nasdaq Iron & Steel Index ("TSR Modifier"). The TSR Modifier can impact the payout between 50 percent and 150 percent of the Company's final performance measure results. The Company granted the following stock options during the nine months ended September 30, 2017 with an exercise price equal to the closing price of our common stock on the date of grant. Weighted Average Per Share No. of Shares Exercise Price Grant Date Fair Value Traditional stock options 84,332 $ 9.85 $ 5.17 Performance based options 80,595 $ 9.85 $ 4.55
Schedule of Weighted-Average Assumptions	The weighted-average fair value of employee stock options granted during the nine months ended September 30, 2017 was based on using the following weighted-average assumptions: Nine Months Ended September 30, 2017 Risk-free interest rate 2 % Expected term 6 years Volatility 54 % Dividend yield — %
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan	Below is a summary of the compensation expense, unrecognized compensation costs, and the period for which the unrecognized compensation cost is expected to be recognized over: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 September 30, 2017 Compensation Expense (1) Unrecognized Compensation Cost Recognition Period (Dollars in millions) (Years) Equity Awards: Stock Options $ 0.3 $ 0.6 $ 1.1 $ 1.6 $ 0.5 1.2 RSUs 0.2 0.6 0.9 2.1 $ 0.5 1.1 PSUs 0.5 0.3 1.7 1.0 $ 3.6 2.2 Total equity awards $ 1.0 $ 1.5 $ 3.7 $ 4.7 Liability Awards: Cash RSUs $ 0.1 $ 0.2 $ 0.5 $ 0.3 $ 1.2 1.8 Cash incentive award 0.1 0.1 0.4 0.2 $ 0.7 2.0 Total liability awards $ 0.2 $ 0.3 $ 0.9 $ 0.5 (1) Compensation expense recognized by the Company in selling, general and administrative expenses on the Consolidated Statements of Operations.
Schedule of Unrecognized Compensation Cost, Nonvested Awards	Below is a summary of the compensation expense, unrecognized compensation costs, and the period for which the unrecognized compensation cost is expected to be recognized over: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 September 30, 2017 Compensation Expense (1) Unrecognized Compensation Cost Recognition Period (Dollars in millions) (Years) Equity Awards: Stock Options $ 0.3 $ 0.6 $ 1.1 $ 1.6 $ 0.5 1.2 RSUs 0.2 0.6 0.9 2.1 $ 0.5 1.1 PSUs 0.5 0.3 1.7 1.0 $ 3.6 2.2 Total equity awards $ 1.0 $ 1.5 $ 3.7 $ 4.7 Liability Awards: Cash RSUs $ 0.1 $ 0.2 $ 0.5 $ 0.3 $ 1.2 1.8 Cash incentive award 0.1 0.1 0.4 0.2 $ 0.7 2.0 Total liability awards $ 0.2 $ 0.3 $ 0.9 $ 0.5 (1) Compensation expense recognized by the Company in selling, general and administrative expenses on the Consolidated Statements of Operations.

Acquisition of Noncontrolling31

Acquisition of Noncontrolling Interest (Tables)	9 Months Ended
	Sep. 30, 2017
Noncontrolling Interest [Abstract]
Schedule of Changes in Ownership Interest	The following table summarizes the effects of the changes in the Company's ownership interest in the Partnership on SunCoke's equity: Three Months Ended Nine Months Ended September 30, 2017 Net income (loss) attributable to SunCoke Energy, Inc. $ 11.6 $ (11.6 ) Decrease in SunCoke Energy, Inc. equity for the purchase of additional interest in the Partnership (2.3 ) (8.1 ) Change from net income (loss) attributable to SunCoke Energy, Inc. and transfers to noncontrolling interest $ 9.3 $ (19.7 )

Earnings per Share (Tables)

Earnings per Share (Tables)	9 Months Ended
	Sep. 30, 2017
Earnings Per Share [Abstract]
Reconciliation of Weighted-Average Number of Common Shares Used to Compute Basic EPS to Those Used to Compute Diluted EPS	The following table sets forth the reconciliation of the weighted-average number of common shares used to compute basic EPS to those used to compute diluted EPS: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Shares in millions) Weighted-average number of common shares outstanding-basic 64.3 64.2 64.3 64.1 Add: Effect of dilutive share-based compensation awards 0.9 0.3 — — Weighted-average number of shares-diluted 65.2 64.5 64.3 64.1
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following table shows stock options, restricted stock units, and performance stock units that are excluded from the computation of diluted earnings per share as the shares would have been anti-dilutive: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Shares in millions) Stock options 2.9 3.1 3.3 3.2 Restricted stock units — 0.1 0.2 0.3 Performance stock units 0.2 — 0.9 0.4 Total 3.1 3.2 4.4 3.9

Supplemental Accumulated Othe33

Supplemental Accumulated Other Comprehensive Loss Information (Tables)	9 Months Ended
	Sep. 30, 2017
Equity [Abstract]
Changes in Accumulated Other Comprehensive Loss, by Component	Changes in accumulated other comprehensive loss, by component, are presented below: Benefit Plans Currency Translation Adjustments Total (Dollars in millions) At December 31, 2016 $ (4.8 ) $ (14.2 ) $ (19.0 ) Other comprehensive income 0.1 0.1 0.2 At September 30, 2017 $ (4.7 ) $ (14.1 ) $ (18.8 )
Reclassification Adjustments from Accumulated Other Comprehensive Loss	Reclassifications out of the accumulated other comprehensive loss were as follows: (1) Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Amortization of postretirement benefit plan items to net income: Actuarial loss (2) $ 0.3 $ 0.2 $ 0.7 $ 0.6 Prior service benefit (2) (0.2 ) (0.2 ) (0.6 ) (0.6 ) Total expense before taxes 0.1 — 0.1 — Less income tax benefit — — — — Total expense, net of tax $ 0.1 $ — $ 0.1 $ — (1) Amounts in parentheses indicate credits to net income. (2) These accumulated other comprehensive (income) loss components are included in the computation of postretirement benefit plan expense (benefit). See Note 7 .

Business Segment Information (T

Business Segment Information (Tables)	9 Months Ended
	Sep. 30, 2017
Segment Reporting [Abstract]
Business Segment Information	The following table includes Adjusted EBITDA, which is the measure of segment profit or loss and liquidity reported to the chief operating decision maker for purposes of allocating resources to the segments and assessing their performance: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Sales and other operating revenue: Domestic Coke $ 309.7 $ 273.2 $ 884.9 $ 836.2 Brazil Coke 10.9 8.5 32.2 23.5 Coal Logistics 18.4 12.2 54.8 36.5 Coal Logistics intersegment sales 4.8 4.9 15.0 15.3 Corporate and Other (1) — — — 1.5 Corporate and Other intersegment sales (1) — — — 22.0 Elimination of intersegment sales (4.8 ) (4.9 ) (15.0 ) (37.3 ) Total sales and other operating revenues $ 339.0 $ 293.9 $ 971.9 $ 897.7 Adjusted EBITDA: Domestic Coke $ 55.6 $ 52.1 $ 149.3 $ 157.4 Brazil Coke 4.6 3.2 13.5 7.9 Coal Logistics 12.6 7.3 35.7 18.6 Corporate and Other (2) (10.7 ) (13.2 ) (33.3 ) (44.2 ) Total Adjusted EBITDA $ 62.1 $ 49.4 $ 165.2 $ 139.7 Depreciation and amortization expense: Domestic Coke $ 24.0 $ 19.1 $ 77.4 $ 59.1 Brazil Coke 0.2 0.1 0.5 0.5 Coal Logistics 6.1 5.6 18.3 19.0 Corporate and Other 0.3 0.8 1.0 3.8 Total depreciation and amortization expense $ 30.6 $ 25.6 $ 97.2 $ 82.4 Capital expenditures: Domestic Coke $ 26.0 $ 8.4 $ 45.9 $ 25.3 Coal Logistics 0.5 3.9 1.8 16.3 Corporate and Other 0.7 0.4 1.9 1.3 Total capital expenditures $ 27.2 $ 12.7 $ 49.6 $ 42.9 (1) Corporate and Other revenues are related to our legacy coal mining business. (2) Corporate and Other includes the activity from our legacy coal mining business, which incurred Adjusted EBITDA losses of $2.0 million and $8.2 million during the three and nine months ended September 30, 2017, respectively, as well as losses of $2.5 million and $11.8 million during the three and nine months ended September 30, 2016, respectively. The following table sets forth the Company's segment assets: September 30, 2017 December 31, 2016 (Dollars in millions) Segment assets Domestic Coke $ 1,488.9 $ 1,495.0 Brazil Coke 12.0 32.6 Coal Logistics 499.4 515.6 Corporate and Other 105.6 73.1 Segment assets, excluding tax assets 2,105.9 2,116.3 Tax assets 9.0 4.6 Total assets $ 2,114.9 $ 2,120.9 The following table sets forth the Company’s total sales and other operating revenue by product or service: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Sales and other operating revenue: Cokemaking $ 293.0 $ 257.8 $ 839.1 $ 789.5 Energy 14.7 14.1 39.3 43.0 Logistics 17.0 11.8 52.1 35.4 Operating and licensing fees 10.9 8.4 32.2 23.5 Other 3.4 1.8 9.2 6.3 Sales and other operating revenue $ 339.0 $ 293.9 $ 971.9 $ 897.7
Reconciliation of Adjusted EBITDA to Net Income	Below is a reconciliation of Adjusted EBITDA to net income and net cash provided by operating activities, which are its most directly comparable financial measures calculated and presented in accordance with GAAP: Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 (Dollars in millions) Net cash provided by operating activities $ 73.9 $ 44.6 $ 128.3 $ 166.1 Subtract: Loss on divestiture of business — — — 14.7 Depreciation and amortization expense 30.6 25.6 97.2 82.4 Deferred income tax expense (9.4 ) 0.9 70.4 4.5 Loss (gain) on extinguishment of debt 0.1 (1.0 ) 20.4 (24.9 ) Changes in working capital and other 33.8 4.7 10.7 61.4 Net income (loss) $ 18.8 $ 14.4 $ (70.4 ) $ 28.0 Add: Coal rationalization costs (1) $ — $ 0.2 $ — $ 0.4 Depreciation and amortization expense 30.6 25.6 97.2 82.4 Interest expense, net 16.1 12.9 45.0 40.3 Loss (gain) on extinguishment of debt 0.1 (1.0 ) 20.4 (24.9 ) Income tax (benefit) expense (1.5 ) 2.6 69.4 5.9 Contingent consideration adjustments (2) (2.0 ) (4.6 ) (1.7 ) (8.3 ) Expiration of land deposits and write-off of costs related to potential new cokemaking facility (3) — — 5.3 1.9 Loss on divestiture of business — — — 14.7 Non-cash reversal of acquired contractual obligation (4) — (0.7 ) — (0.7 ) Adjusted EBITDA (5) $ 62.1 $ 49.4 $ 165.2 $ 139.7 Subtract: Adjusted EBITDA attributable to noncontrolling interest (6) 21.9 18.9 61.0 57.8 Adjusted EBITDA attributable to SunCoke Energy, Inc. $ 40.2 $ 30.5 $ 104.2 $ 81.9 (1) Prior to the divestiture of our coal mining business, the Company incurred coal rationalization costs including employee severance, contract termination costs and other costs to idle mines incurred during the execution of our coal rationalization plan. (2) As a result of changes in the fair value of the contingent consideration liability, the Partnership recognized a benefit of $2.0 million and $1.7 million during the three and nine months ended September 30, 2017, respectively. The Partnership amended its contingent consideration terms with The Cline Group during the first quarter of 2016. This amendment and subsequent fair value adjustments resulted in a gain of $4.6 million and $8.3 million recorded during the three and nine months ended September 30, 2016, respectively. (3) In 2014, we finalized the required permitting and engineering plan for a potential new cokemaking facility to be constructed in Kentucky. However, in June 2017, due to our focus on renewing our existing customer contracts and the lack of any long-term customer commitment for a majority of the facility's capacity, we decided to terminate the project. As a result, during the nine months ended September 30, 2017, the Company wrote-off previously capitalized engineering and land deposit costs of $5.3 million . During the nine months ended September 30, 2016, the Company wrote-off expiring land deposits related to the project of $1.9 million . (4) In association with the acquisition of CMT, we assumed certain performance obligations under existing contracts and recorded liabilities related to such obligations. In the third quarter of 2016, the final acquired contractual performance obligation expired without the customer requiring performance. Therefore, the Partnership reversed the liability as we no longer have any obligations under the contract. (5) In accordance with the SEC’s May 2016 update of its guidance on the appropriate use of non-GAAP financial measures, Adjusted EBITDA does not include Coal Logistics deferred revenue until it is recognized as GAAP revenue. (6) Reflects noncontrolling interest in Indiana Harbor and the portion of the Partnership owned by public unitholders.

Supplemental Condensed Consol35

Supplemental Condensed Consolidating Financial Information (Tables)	9 Months Ended
	Sep. 30, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Statement of Income	SunCoke Energy, Inc. Condensed Consolidating Statement of Operations Three Months Ended September 30, 2017 (Dollars in millions) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Revenues Sales and other operating revenue $ — $ 53.6 $ 286.5 $ (1.1 ) $ 339.0 Equity in earnings (loss) of subsidiaries 14.2 6.6 — (20.8 ) — Total revenues, net of equity earnings (loss) of subsidiaries 14.2 60.2 286.5 (21.9 ) 339.0 Costs and operating expenses Cost of products sold and operating expense — 40.5 217.8 (1.1 ) 257.2 Selling, general and administrative expense 1.5 3.4 12.8 — 17.7 Depreciation and amortization expense — 1.8 28.8 — 30.6 Total costs and operating expenses 1.5 45.7 259.4 (1.1 ) 305.5 Operating income 12.7 14.5 27.1 (20.8 ) 33.5 Interest (income) expense, net - affiliate — (1.9 ) 1.9 — — Interest expense (income), net 1.3 (0.1 ) 14.9 — 16.1 Total interest expense (income), net 1.3 (2.0 ) 16.8 — 16.1 Loss on extinguishment of debt — — 0.1 — 0.1 Income before income tax benefit 11.4 16.5 10.2 (20.8 ) 17.3 Income tax benefit (0.2 ) (1.2 ) (0.1 ) — (1.5 ) Net income 11.6 17.7 10.3 (20.8 ) 18.8 Less: Net income attributable to noncontrolling interests — — 7.2 — 7.2 Net income attributable to SunCoke Energy, Inc. $ 11.6 $ 17.7 $ 3.1 $ (20.8 ) $ 11.6 Comprehensive income $ 12.0 $ 17.7 $ 10.7 $ (21.2 ) $ 19.2 Less: Comprehensive income attributable to noncontrolling interests — — 7.2 — 7.2 Comprehensive income attributable to SunCoke Energy, Inc. $ 12.0 $ 17.7 $ 3.5 $ (21.2 ) $ 12.0 SunCoke Energy, Inc. Condensed Consolidating Statement of Operations Three Months Ended September 30, 2016 (Dollars in millions) Issuer Guarantor Non- Combining Total Revenues Sales and other operating revenue $ — $ 43.0 $ 251.9 $ (1.0 ) $ 293.9 Equity in earnings (loss) of subsidiaries 3.5 15.4 — (18.9 ) — Total revenues, net of equity in earnings (loss) of subsidiaries 3.5 58.4 251.9 (19.9 ) 293.9 Costs and operating expenses Cost of products sold and operating expenses — 31.9 186.7 (1.0 ) 217.6 Selling, general and administrative expenses 3.1 6.3 12.4 — 21.8 Depreciation and amortization expense — 2.4 23.2 — 25.6 Total costs and operating expenses 3.1 40.6 222.3 (1.0 ) 265.0 Operating income (loss) 0.4 17.8 29.6 (18.9 ) 28.9 Interest (income) expense, net - affiliate — (1.8 ) 1.8 — — Interest expense, net 1.4 — 11.5 — 12.9 Total interest expense (income), net 1.4 (1.8 ) 13.3 — 12.9 Gain on extinguishment of debt — — (1.0 ) — (1.0 ) (Loss) income before income tax expense (1.0 ) 19.6 17.3 (18.9 ) 17.0 Income tax (benefit) expense (7.1 ) 12.6 (2.9 ) — 2.6 Net income (loss) 6.1 7.0 20.2 (18.9 ) 14.4 Less: Net income attributable to noncontrolling interests — — 8.3 — 8.3 Net income (loss) attributable to SunCoke Energy, Inc. $ 6.1 $ 7.0 $ 11.9 $ (18.9 ) $ 6.1 Comprehensive income (loss) $ 6.0 $ 6.9 $ 20.1 $ (18.7 ) $ 14.3 Less: Comprehensive income attributable to noncontrolling interests — — 8.3 — 8.3 Comprehensive income (loss) attributable to SunCoke Energy, Inc. $ 6.0 $ 6.9 $ 11.8 $ (18.7 ) $ 6.0 SunCoke Energy, Inc. Condensed Consolidating Statements of Operations Nine Months Ended September 30, 2017 (Dollars in millions) Issuer Guarantor Non- Combining Total Revenues Sales and other operating revenue $ — $ 156.0 $ 819.2 $ (3.3 ) $ 971.9 Equity in earnings (loss) of subsidiaries 0.7 (95.5 ) — 94.8 — Total revenues, net of equity in earnings (loss) of subsidiaries 0.7 60.5 819.2 91.5 971.9 Costs and operating expenses Cost of products sold and operating expense — 116.0 636.1 (3.3 ) 748.8 Selling, general and administrative expense 6.5 18.4 36.6 — 61.5 Depreciation and amortization expense — 5.6 91.6 — 97.2 Total costs and operating expenses 6.5 140.0 764.3 (3.3 ) 907.5 Operating (loss) income (5.8 ) (79.5 ) 54.9 94.8 64.4 Interest (income) expense, net - affiliate — (5.6 ) 5.6 — — Interest expense (income), net 3.8 (0.3 ) 41.5 — 45.0 Total interest expense (income), net 3.8 (5.9 ) 47.1 — 45.0 Loss on extinguishment of debt 0.4 — 20.0 — 20.4 (Loss) income before income tax expense (10.0 ) (73.6 ) (12.2 ) 94.8 (1.0 ) Income tax expense (benefit) 1.6 (87.2 ) 155.0 — 69.4 Net (loss) income (11.6 ) 13.6 (167.2 ) 94.8 (70.4 ) Less: Net loss attributable to noncontrolling interests — — (58.8 ) — (58.8 ) Net (loss) income attributable to SunCoke Energy, Inc. $ (11.6 ) $ 13.6 $ (108.4 ) $ 94.8 $ (11.6 ) Comprehensive (loss) income $ (11.4 ) $ 13.6 $ (167.0 ) $ 94.6 $ (70.2 ) Less: Comprehensive loss attributable to noncontrolling interests — — (58.8 ) — (58.8 ) Comprehensive (loss) income attributable to SunCoke Energy, Inc. $ (11.4 ) $ 13.6 $ (108.2 ) $ 94.6 $ (11.4 ) SunCoke Energy, Inc. Condensed Consolidating Statements of Operations Nine Months Ended September 30, 2016 (Dollars in millions) Issuer Guarantor Non- Combining Total Revenues Sales and other operating revenue $ — $ 127.9 $ 772.8 $ (3.0 ) $ 897.7 Equity in earnings (loss) of subsidiaries 2.1 26.7 — (28.8 ) — Total revenues, net of equity in earnings (loss) of subsidiaries 2.1 154.6 772.8 (31.8 ) 897.7 Costs and operating expenses Cost of products sold and operating expense — 97.4 588.1 (3.0 ) 682.5 Selling, general and administrative expense 8.9 22.1 37.8 — 68.8 Depreciation and amortization expense — 6.9 75.5 — 82.4 Loss on divestiture of business — — 14.7 — 14.7 Total costs and operating expenses 8.9 126.4 716.1 (3.0 ) 848.4 Operating (loss) income (6.8 ) 28.2 56.7 (28.8 ) 49.3 Interest (income) expense, net - affiliate — (5.7 ) 5.7 — — Interest expense, net 4.6 — 35.7 — 40.3 Total interest expense (income), net 4.6 (5.7 ) 41.4 — 40.3 Gain on extinguishment of debt — — (24.9 ) — (24.9 ) (Loss) income before income tax (benefit) expense (11.4 ) 33.9 40.2 (28.8 ) 33.9 Income tax (benefit) expense (8.8 ) 19.7 (5.0 ) — 5.9 Net (loss) income (2.6 ) 14.2 45.2 (28.8 ) 28.0 Less: Net income attributable to noncontrolling interests — — 30.6 — 30.6 Net (loss) income attributable to SunCoke Energy, Inc. $ (2.6 ) $ 14.2 $ 14.6 $ (28.8 ) $ (2.6 ) Comprehensive (loss) income $ (1.6 ) $ 14.1 $ 46.2 $ (29.7 ) $ 29.0 Less: Comprehensive income attributable to noncontrolling interests — — 30.6 — 30.6 Comprehensive (loss) income attributable to SunCoke Energy, Inc. $ (1.6 ) $ 14.1 $ 15.6 $ (29.7 ) $ (1.6 )
Condensed Consolidating Balance Sheet	SunCoke Energy, Inc. Condensed Consolidating Balance Sheet September 30, 2017 (Dollars in millions, except per share amounts) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Assets Cash and cash equivalents $ — $ 100.2 $ 48.5 $ — $ 148.7 Receivables — 15.0 55.2 — 70.2 Inventories — 10.4 111.3 — 121.7 Income tax receivable — — 85.6 (76.6 ) 9.0 Other current assets — 2.3 4.8 — 7.1 Advances to affiliate — 248.8 — (248.8 ) — Total current assets — 376.7 305.4 (325.4 ) 356.7 Notes receivable from affiliate — 89.0 300.0 (389.0 ) — Properties, plants and equipment, net — 60.3 1,445.1 — 1,505.4 Goodwill — 3.4 73.5 — 76.9 Other intangible assets, net — 1.8 168.9 — 170.7 Deferred charges and other assets — 4.1 1.1 — 5.2 Investment in subsidiaries 530.6 723.5 — (1,254.1 ) — Total assets $ 530.6 $ 1,258.8 $ 2,294.0 $ (1,968.5 ) $ 2,114.9 Liabilities and Equity Advances from affiliate $ 165.2 $ — $ 83.6 $ (248.8 ) $ — Accounts payable — 17.2 120.9 — 138.1 Accrued liabilities 1.0 16.2 33.9 — 51.1 Deferred revenue — — 16.6 — 16.6 Current portion of long-term debt and financing obligation — — 2.6 — 2.6 Interest payable 0.6 — 17.0 — 17.6 Income taxes payable 1.2 75.4 — (76.6 ) — Total current liabilities 168.0 108.8 274.6 (325.4 ) 226.0 Long-term debt and financing obligation 42.7 — 816.3 — 859.0 Payable to affiliate — 300.0 89.0 (389.0 ) — Accrual for black lung benefits — 13.0 32.8 — 45.8 Retirement benefit liabilities — 13.6 13.8 — 27.4 Deferred income taxes 21.7 265.9 130.3 — 417.9 Asset retirement obligations — — 14.1 — 14.1 Other deferred credits and liabilities 3.0 6.8 6.2 — 16.0 Total liabilities 235.4 708.1 1,377.1 (714.4 ) 1,606.2 Equity Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at September 30, 2017 — — — — — Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,819,720 shares at September 30, 2017 0.7 — — — 0.7 Treasury stock, 7,477,657 shares at September 30, 2017 (140.7 ) — — — (140.7 ) Additional paid-in capital 487.9 188.9 643.4 (832.3 ) 487.9 Accumulated other comprehensive (loss) income (18.8 ) (1.6 ) (17.3 ) 18.9 (18.8 ) Retained (deficit) earnings (33.9 ) 363.4 77.3 (440.7 ) (33.9 ) Total SunCoke Energy, Inc. stockholders’ equity 295.2 550.7 703.4 (1,254.1 ) 295.2 Noncontrolling interests — — 213.5 — 213.5 Total equity 295.2 550.7 916.9 (1,254.1 ) 508.7 Total liabilities and equity $ 530.6 $ 1,258.8 $ 2,294.0 $ (1,968.5 ) $ 2,114.9 SunCoke Energy, Inc. Condensed Consolidating Balance Sheet December 31, 2016 (Dollars in millions, except per share amounts) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Assets Cash and cash equivalents $ — $ 59.7 $ 74.3 $ — $ 134.0 Receivables — 12.2 48.5 — 60.7 Receivable from redemption of investment in Brazil — — 20.5 — 20.5 Inventories — 9.0 83.5 — 92.5 Income tax receivable 17.8 — 74.3 (87.5 ) 4.6 Other current assets 0.2 1.8 1.8 — 3.8 Advances to affiliate — 282.2 — (282.2 ) — Total current assets 18.0 364.9 302.9 (369.7 ) 316.1 Notes receivable from affiliate — 89.0 300.0 (389.0 ) — Properties, plants and equipment, net — 62.8 1,479.8 — 1,542.6 Goodwill — 3.4 73.5 — 76.9 Other intangible assets, net — 2.3 176.7 — 179.0 Deferred charges and other assets — 5.1 1.2 — 6.3 Investment in subsidiaries 542.7 688.2 — (1,230.9 ) — Total assets $ 560.7 $ 1,215.7 $ 2,334.1 $ (1,989.6 ) $ 2,120.9 Liabilities and Equity Advances from affiliate $ 184.2 $ — $ 98.0 $ (282.2 ) $ — Accounts payable — 13.6 85.0 — 98.6 Accrued liabilities 1.7 20.5 27.6 — 49.8 Deferred revenue — — 2.5 — 2.5 Current portion of long-term debt and financing obligation — — 4.9 — 4.9 Interest payable 1.5 — 14.7 — 16.2 Income taxes payable — 87.5 — (87.5 ) — Total current liabilities 187.4 121.6 232.7 (369.7 ) 172.0 Long-term debt and financing obligation 43.5 — 805.7 — 849.2 Payable to affiliate — 300.0 89.0 (389.0 ) — Accrual for black lung benefits — 12.3 33.1 — 45.4 Retirement benefit liabilities — 14.1 14.9 — 29.0 Deferred income taxes 15.9 371.0 (34.4 ) — 352.5 Asset retirement obligations — — 13.9 — 13.9 Other deferred credits and liabilities 2.8 6.4 9.8 — 19.0 Total liabilities 249.6 825.4 1,164.7 (758.7 ) 1,481.0 Equity Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at December 31, 2016 — — — — — Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,707,304 shares at December 31, 2016 0.7 — — — 0.7 Treasury Stock, 7,477,657 shares at December 31, 2016 (140.7 ) — — — (140.7 ) Additional paid-in capital 492.1 42.1 672.2 (714.3 ) 492.1 Accumulated other comprehensive (loss) income (19.0 ) (1.6 ) (17.4 ) 19.0 (19.0 ) Retained (deficit) earnings (22.0 ) 349.8 185.8 (535.6 ) (22.0 ) Total SunCoke Energy, Inc. stockholders’ equity 311.1 390.3 840.6 (1,230.9 ) 311.1 Noncontrolling interests — — 328.8 — 328.8 Total equity 311.1 390.3 1,169.4 (1,230.9 ) 639.9 Total liabilities and equity $ 560.7 $ 1,215.7 $ 2,334.1 $ (1,989.6 ) $ 2,120.9
Condensed Consolidating Statement of Cash Flows	SunCoke Energy, Inc. Condensed Consolidating Statement of Cash Flows Nine Months Ended September 30, 2017 (Dollars in millions) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Cash Flows from Operating Activities: Net (loss) income $ (11.6 ) $ 13.6 $ (167.2 ) $ 94.8 $ (70.4 ) Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities: Depreciation and amortization expense — 5.6 91.6 — 97.2 Deferred income tax expense (benefit) 6.0 (100.3 ) 164.7 — 70.4 Payments in excess of expense for postretirement plan benefits — (0.5 ) (1.1 ) — (1.6 ) Share-based compensation expense 3.9 — 0.2 — 4.1 Equity in (earnings) loss of subsidiaries (0.7 ) 95.5 — (94.8 ) — Loss on extinguishment of debt 0.4 — 20.0 — 20.4 Changes in working capital pertaining to operating activities: Receivables — (2.8 ) (6.7 ) — (9.5 ) Inventories — (1.4 ) (27.8 ) — (29.2 ) Accounts payable — 4.3 28.6 — 32.9 Accrued liabilities (0.7 ) (4.3 ) 6.3 — 1.3 Deferred revenue — — 14.1 — 14.1 Interest payable (0.9 ) — 2.3 — 1.4 Income taxes 19.0 (12.1 ) (11.3 ) — (4.4 ) Other 0.9 1.6 (0.9 ) — 1.6 Net cash provided by (used in) operating activities 16.3 (0.8 ) 112.8 — 128.3 Cash Flows from Investing Activities: Capital expenditures — (3.3 ) (46.3 ) — (49.6 ) Decrease in restricted cash — — 0.1 — 0.1 Return of Brazilian investment — — 20.5 — 20.5 Net cash (used in) provided by investing activities — (3.3 ) (25.7 ) — (29.0 ) Cash Flows from Financing Activities: Proceeds from issuance of long-term debt — — 620.6 — 620.6 Repayment of long-term debt — — (644.9 ) — (644.9 ) Repayment of financing obligation — — (1.8 ) — (1.8 ) Proceeds from revolving facility — — 268.0 — 268.0 Repayment of revolving facility — — (240.0 ) — (240.0 ) Debt issuance costs (1.7 ) — (14.9 ) — (16.6 ) Acquisition of additional interest in the Partnership — (33.6 ) — — (33.6 ) Cash distribution to noncontrolling interests — — (36.0 ) — (36.0 ) Other financing activities (0.3 ) — — — (0.3 ) Net (decrease) increase in advances from affiliate (14.3 ) 78.2 (63.9 ) — — Net cash (used in) provided by financing activities (16.3 ) 44.6 (112.9 ) — (84.6 ) Net increase (decrease) in cash and cash equivalents — 40.5 (25.8 ) — 14.7 Cash and cash equivalents at beginning of period — 59.7 74.3 — 134.0 Cash and cash equivalents at end of period $ — $ 100.2 $ 48.5 $ — $ 148.7 SunCoke Energy, Inc. Condensed Consolidating Statement of Cash Flows Nine Months Ended September 30, 2016 (Dollars in millions) Issuer Guarantor Subsidiaries Non- Guarantor Subsidiaries Combining and Consolidating Adjustments Total Cash Flows from Operating Activities: Net (loss) income $ (2.6 ) $ 14.2 $ 45.2 $ (28.8 ) $ 28.0 Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities: Loss of divestiture of business — — 14.7 — 14.7 Depreciation and amortization expense — 6.9 75.5 — 82.4 Deferred income tax (benefit) expense (7.8 ) 15.9 (3.6 ) — 4.5 Payments in excess of expense for postretirement plan benefits — (0.8 ) (1.2 ) — (2.0 ) Share-based compensation expense 5.0 — — — 5.0 Equity in (earnings) loss of subsidiaries (2.1 ) (26.7 ) — 28.8 — Gain on extinguishment of debt — — (24.9 ) — (24.9 ) Changes in working capital pertaining to operating activities (net of the effects of divestiture): Receivables — (0.2 ) 10.5 — 10.3 Inventories — (4.0 ) 28.1 — 24.1 Accounts payable — 6.1 (9.6 ) — (3.5 ) Accrued liabilities 0.5 4.1 2.1 — 6.7 Deferred revenue — — 25.5 — 25.5 Interest payable (0.9 ) — (11.2 ) — (12.1 ) Income taxes (13.1 ) 3.1 14.4 — 4.4 Other 3.1 8.8 (8.9 ) — 3.0 Net cash (used in) provided by operating activities (17.9 ) 27.4 156.6 — 166.1 Cash Flows from Investing Activities: Capital expenditures — (4.3 ) (38.6 ) — (42.9 ) Decrease in restricted cash — — 17.5 — 17.5 Divestiture of business — — (12.8 ) — (12.8 ) Other investing activities — — 2.1 — 2.1 Net cash used in investing activities — (4.3 ) (31.8 ) — (36.1 ) Cash Flows from Financing Activities: Net proceeds from issuance of SunCoke Energy Partners, L.P. units — — — — — Repayment of long-term debt — — (60.8 ) — (60.8 ) Proceeds from revolving facility — — 20.0 — 20.0 Repayments of revolving facility (60.4 ) — (25.0 ) — (85.4 ) Debt issuance cost — — (0.2 ) — (0.2 ) Proceeds from financing obligation — — 16.2 — 16.2 Repayment of financing obligation — — (0.5 ) — (0.5 ) Cash distribution to noncontrolling interests — (36.9 ) — (36.9 ) Other financing activities (0.3 ) (0.2 ) — — (0.5 ) Net increase (decrease) in advances from affiliates 78.6 (64.4 ) (14.2 ) — — Net cash provided by (used in) financing activities 17.9 (64.6 ) (101.4 ) — (148.1 ) Net (decrease) increase in cash and cash equivalents — (41.5 ) 23.4 — (18.1 ) Cash and cash equivalents at beginning of period — 70.6 52.8 — 123.4 Cash and cash equivalents at end of period $ — $ 29.1 $ 76.2 $ — $ 105.3

General (Details)

General (Details)	9 Months Ended
	Sep. 30, 2017Cokemaking_facility
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Number of facilities (in cokemaking facilities)	5
Suncoke Inc
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest of general partnership (as a percent)	2.00%
Interest in partnership (as a percent)	58.10%
Public Unitholders
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest, public (as a percent)	39.90%
VISA SunCoke Limited
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Equity ownership percentage	49.00%

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Inventory Disclosure [Abstract]
Coal	$ 74	$ 49.4
Coke	10.9	7.7
Materials, supplies and other	36.8	35.4
Total inventories	$ 121.7	$ 92.5

Goodwill and Other Intangible38

Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 76.9		$ 76.9		$ 76.9
Total amortization expense of intangible assets	2.8	$ 2.8	$ 8.3	$ 8.4
Permits
Finite-Lived Intangible Assets [Line Items]
Useful life			25 years
Convent Marine Terminal | Permits
Finite-Lived Intangible Assets [Line Items]
Useful life			27 years
Period before next renewal or extension			3 years 8 months
Domestic Coke
Finite-Lived Intangible Assets [Line Items]
Goodwill	3.4		$ 3.4		3.4
Coal Logistics
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 73.5		$ 73.5		$ 73.5

Goodwill and Other Intangible39

Goodwill and Other Intangible Assets - Gross and Net Intangible Assets (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 200.6	$ 200.6
Accumulated Amortization	29.9	21.6
Net	$ 170.7	179
Customer contracts
Finite-Lived Intangible Assets [Line Items]
Weighted - Average Remaining Amortization Years	5 years
Gross Carrying Amount	$ 31.7	31.7
Accumulated Amortization	12.8	9.9
Net	$ 18.9	21.8
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted - Average Remaining Amortization Years	14 years
Gross Carrying Amount	$ 28.7	28.7
Accumulated Amortization	5.2	3.8
Net	$ 23.5	24.9
Permits
Finite-Lived Intangible Assets [Line Items]
Weighted - Average Remaining Amortization Years	25 years
Gross Carrying Amount	$ 139	139
Accumulated Amortization	10.9	7.1
Net	$ 128.1	131.9
Trade name
Finite-Lived Intangible Assets [Line Items]
Weighted - Average Remaining Amortization Years	1 year
Gross Carrying Amount	$ 1.2	1.2
Accumulated Amortization	1	0.8
Net	$ 0.2	$ 0.4

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Contingency [Line Items]
Income tax (benefit) expense	$ (1.5)		$ 2.6	$ 69.4	$ 5.9
Deferred income tax expense	$ (9.4)		$ 0.9	70.4	$ 4.5
Federal statutory tax rate (as a percent)			35.00%		35.00%
Effective income tax rate (as a percent)			15.30%		17.40%
IRS
Income Tax Contingency [Line Items]
Deferred income tax expense		$ 148.6
Deferred tax liability		$ 84.4
Net impact on deferred tax expense				$ 64.2

Accrued Liabilities (Details)

Accrued Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Accrued benefits	$ 19.1	$ 21.4
Current portion of postretirement benefit obligation	3.3	3.3
Other taxes payable	12.4	10.4
Current portion of black lung liability	4.8	4.8
Accrued legal	6	4.4
Other	5.5	5.5
Total accrued liabilities	$ 51.1	$ 49.8

Debt and Financing Obligation -

Debt and Financing Obligation - Schedule of Debt (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Total borrowings	$ 887,900,000	$ 858,000,000
Original issue (discount) premium	(9,100,000)	7,500,000
Debt issuance costs	(17,200,000)	(11,400,000)
Total debt and financing obligation	861,600,000	854,100,000
Less: current portion of long-term debt and financing obligation	2,600,000	4,900,000
Long-term debt and financing obligation	859,000,000	849,200,000
7.500 percent senior notes, due 2025 (2025 Partnership Notes) | Senior notes
Debt Instrument [Line Items]
Total borrowings	$ 630,000,000	0
Interest rate on senior notes (as a percent)	7.50%
7.375 percent senior notes, due 2020 (''2020 Partnership Notes'') | Senior notes
Debt Instrument [Line Items]
Total borrowings	$ 0	$ 463,000,000
Interest rate on senior notes (as a percent)		7.375%
7.625 percent senior notes, due 2019 (Notes) | Senior notes
Debt Instrument [Line Items]
Total borrowings	$ 44,600,000	$ 44,600,000
Interest rate on senior notes (as a percent)	7.625%
Partnership's term loan, due 2019 (Partnership Term Loan) | Line of Credit
Debt Instrument [Line Items]
Total borrowings	$ 0	50,000,000
SunCoke's revolving credit facility, due 2022 (Revolving Facility) | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Total borrowings	0	0
Partnership's revolving credit facility, due 2022 and 2019, respectively (Partnership Revolver) | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Total borrowings	200,000,000	172,000,000
Partnership's promissory note payable, due 2021 (Promissory Note) | Senior notes
Debt Instrument [Line Items]
Total borrowings	0	113,200,000
5.82 percent financing obligation, due 2021 (Partnership Financing Obligation) | Financing Obligation
Debt Instrument [Line Items]
Total borrowings	$ 13,300,000	$ 15,200,000
Interest rate on senior notes (as a percent)	5.82%

Debt and Financing Obligation43

Debt and Financing Obligation - Issuance of 2025 Partnership Senior Notes Narrative (Details) - Senior notes - 7.500 percent senior notes, due 2025 (2025 Partnership Notes) - USD ($)	1 Months Ended	9 Months Ended
	May 31, 2017	Sep. 30, 2017
Debt Instrument [Line Items]
Interest rate on senior notes (as a percent)		7.50%
SunCoke Energy Partners, L.P.
Debt Instrument [Line Items]
Face amount of debt	$ 630,000,000
Interest rate on senior notes (as a percent)	7.50%
Proceeds from issuance of senior debt	$ 620,600,000
Debt discount	$ 9,400,000
Debt issuance costs, net		$ 11,900,000
Percentage of change of control		101.00%
Percentage of asset dispositions		100.00%
SunCoke Energy Partners, L.P. | Before June 15, 2020
Debt Instrument [Line Items]
Redemption percentage		35.00%
Percentage of principal amount		107.50%
SunCoke Energy Partners, L.P. | Anytime prior to June 15, 2020
Debt Instrument [Line Items]
Percentage of principal amount		100.00%

Debt and Financing Obligation44

Debt and Financing Obligation - Purchase and Redemption of 2020 Partnership Senior Notes and Repayment of the Partnership Term Loan Narrative (Details) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Debt Instrument [Line Items]
Repayment of revolving credit facility				$ 240,000,000	$ 85,400,000
Loss (gain) on extinguishment of debt	$ 100,000		$ (1,000,000)	20,400,000	$ (24,900,000)
SunCoke Energy Partners, L.P. | Senior notes | 7.375 percent senior notes, due 2020 (''2020 Partnership Notes'')
Debt Instrument [Line Items]
Face amount of debt		$ 463,000,000
Redemption premium		18,700,000
Loss (gain) on extinguishment of debt				19,100,000
Debt issuance costs, gross				7,000,000
Unamortized premium				$ (6,600,000)
SunCoke Energy Partners, L.P. | Line of Credit | Partnership's term loan, due 2019 (Partnership Term Loan)
Debt Instrument [Line Items]
Repayment of revolving credit facility		$ 50,000,000

Debt and Financing Obligation45

Debt and Financing Obligation - Revolving Facility Narrative (Details) - USD ($)	1 Months Ended	9 Months Ended
	Feb. 28, 2017	Sep. 30, 2017	May 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Outstanding balance		$ 887,900,000		$ 858,000,000
Revolving Credit Facility | Line of Credit | SunCoke's revolving credit facility, due 2018 (Revolving Facility)
Debt Instrument [Line Items]
Reduction of debt	$ 25,000,000
Maximum borrowing capacity	$ 125,000,000
Line of credit debt issuance costs, gross		600,000
Debt issuance costs, gross		100,000
Revolving Credit Facility | Line of Credit | SunCoke's revolving credit facility, due 2022 (Revolving Facility)
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 100,000,000
Line of credit debt issuance costs, gross		1,100,000
Amortization of debt issuance costs		300,000
Letters of credit outstanding under revolving facility		28,200,000
Outstanding balance		0		$ 0
Remaining borrowing capacity		$ 71,800,000

Debt and Financing Obligation46

Debt and Financing Obligation - Partnership's Revolver and Promissory Note Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	May 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Repayment of revolving credit facility				$ 240,000,000	$ 85,400,000
Proceeds from revolving credit facility				268,000,000	$ 20,000,000
Outstanding balance		$ 887,900,000		887,900,000			$ 858,000,000
Line of Credit | Partnership's revolving credit facility, due 2022 and 2019, respectively (Partnership Revolver) | Revolving Credit Facility
Debt Instrument [Line Items]
Outstanding balance		200,000,000		200,000,000			172,000,000
Senior notes | Partnership's promissory note payable, due 2021 (Promissory Note)
Debt Instrument [Line Items]
Outstanding balance		0		0			$ 113,200,000
SunCoke Energy Partners, L.P. | Line of Credit | Partnership's revolving credit facility, due 2022 and 2019, respectively (Partnership Revolver) | Revolving Credit Facility
Debt Instrument [Line Items]
Repayment of revolving credit facility		100,000,000	$ 172,000,000
Maximum borrowing capacity						$ 285,000,000
Proceeds from revolving credit facility			$ 200,000,000
Line of credit debt issuance costs, gross		3,000,000		3,000,000
Amortization of debt issuance costs				800,000
Letters of credit outstanding under revolving facility		1,900,000		1,900,000
Outstanding balance		200,000,000		200,000,000
Remaining borrowing capacity		83,100,000		83,100,000
SunCoke Energy Partners, L.P. | Line of Credit | Partnership's revolving credit facility, due 2018 (Partnership Revolver) | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 250,000,000
SunCoke Energy Partners, L.P. | Senior notes | Partnership's promissory note payable, due 2021 (Promissory Note)
Debt Instrument [Line Items]
Amortization of debt issuance costs		$ 100,000		$ 100,000
Outstanding balance	$ 112,600,000
Repayments of senior debt	$ 12,600,000

Debt and Financing Obligation

Debt and Financing Obligation - Covenants Narrative (Details)	Jun. 30, 2020	Sep. 30, 2017USD ($)
Credit Agreement and Partner Revolver
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio		3.25
Minimum consolidated interest coverage ratio		2.75
Credit Agreement and Partner Revolver | SunCoke Energy Partners, L.P.
Line of Credit Facility [Line Items]
Cross default covenant threshold		$ 35,000,000
Line of Credit | Revolving credit facility | Partnership's revolving credit facility, due 2018 (Partnership Revolver) | SunCoke Energy Partners, L.P.
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio		4.50
Minimum consolidated interest coverage ratio		2.5
Line of Credit | Revolving credit facility | Partnership's revolving credit facility, due 2018 (Partnership Revolver) | SunCoke Energy Partners, L.P. | Forecast
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio	4

Retirement Benefits Plans - Pos

Retirement Benefits Plans - Postretirement Benefit Plans Expense (Benefit) (Details) - Postretirement Benefit Plans - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Postretirement benefit plans benefit
Interest cost on benefit obligations	$ 0.3	$ 0.3	$ 0.9	$ 0.9
Amortization of:
Actuarial losses	0.3	0.2	0.7	0.6
Prior service benefit	(0.2)	(0.2)	(0.6)	(0.6)
Postretirement benefit plans benefit	$ 0.4	$ 0.3	$ 1	$ 0.9

Retirement Benefits Plans (Deta

Retirement Benefits Plans (Details Textual) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Retirement Benefits [Abstract]
Defined contribution plan matching contribution	$ 1.6	$ 1.4	$ 4.7	$ 4.1

Commitments and Contingent Li50

Commitments and Contingent Liabilities (Details) - USD ($) $ in Millions	9 Months Ended	69 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2014
Accrued Liabilities
Loss Contingencies [Line Items]
Accrual for black lung liability	$ 4.8	$ 4.8	$ 4.8
Uninsured Risk
Loss Contingencies [Line Items]
Accrual for black lung liability	50.6	50.6	$ 50.2
Haverhill and Granite City
Loss Contingencies [Line Items]
Estimate possible loss				$ 2.2
Actual spending for environmental remediation project		103
Environmental remediation expense	119
Haverhill and Granite City | Minimum
Loss Contingencies [Line Items]
Anticipated spending on environmental remediation project	140	140
Haverhill and Granite City | Maximum
Loss Contingencies [Line Items]
Anticipated spending on environmental remediation project	$ 145	$ 145

Share-Based Compensation - Stoc

Share-Based Compensation - Stock Options (Details) - Suncoke LTPEP	9 Months Ended
	Sep. 30, 2017$ / sharesshares
Traditional stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
No. of Shares granted (in shares) | shares	84,332
Weighted Average Per Share Exercise Price (in dollars per share)	$ 9.85
Weighted Average Per Share Grant Date Fair Value (in dollars per share)	$ 5.17
Performance based options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
No. of Shares granted (in shares) | shares	80,595
Weighted Average Per Share Exercise Price (in dollars per share)	$ 9.85
Weighted Average Per Share Grant Date Fair Value (in dollars per share)	$ 4.55

Share-Based Compensation (Detai

Share-Based Compensation (Details Textual) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2017USD ($)annual_installment$ / sharesshares	Sep. 30, 2016USD ($)
Director
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Compensation expense	$ 0.4	$ 0.3
Stock options
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Historical volatility rate	90.00%
Implied volatility rate	10.00%
Implied volatility valuation period	90 days
Stock options | Suncoke LTPEP
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Number of annual installment in which stock option exercisable (in installments) | annual_installment	3
Period from grant date for annual installment (in years)	1 year
Stock options, time until expiration (in years)	10 years
Performance based options | Suncoke LTPEP
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Maximum closing stock price threshold for performance based options (in dollars per share) | $ / shares	$ 14.78
Threshold percentage	150.00%
Closing stock price threshold for performance based options (in dollars per share) | $ / shares	$ 9.85
Closing stock price threshold for performance based options, number of trading days	15 days
Measurement period	3 years
Restricted stock units
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Number of annual installment in which stock option exercisable (in installments) | annual_installment	3
Period from grant date for annual installment (in years)	1 year
Restricted stock (in shares) | shares	22,628
Fair value grant (in dollars per share) | $ / shares	$ 9.85
PSUs | Suncoke LTPEP
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Measurement period	3 years
PSUs | Minimum
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Percent of original award granted	0.00%
PSUs | Maximum
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Percent of original award granted	250.00%
Restricted Stock Units Settled in Cash
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Number of annual installment in which stock option exercisable (in installments) | annual_installment	3
Period from grant date for annual installment (in years)	1 year
Restricted stock (in shares) | shares	95,364
Fair value grant (in dollars per share) | $ / shares	$ 9.85
Closing price per share (in dollars per share) | $ / shares	$ 9.14
Share-based arrangements, liability	$ 0.7
Share-based arrangements, liability, current	0.5
Share-based arrangements, liability, noncurrent	0.2
Cash incentive award
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Share-based arrangements, liability, noncurrent	$ 0.5
Cash incentive award | Suncoke LTCIP
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Measurement period	3 years
Grant date fair value of award	$ 0.7
Percent of award allocation	50.00%
Cash incentive award | Maximum | Suncoke LTCIP
Deferred Compensation Arrangement With Individual Share Based Payments [Line Items]
Percent of original award granted	250.00%

Share-Based Compensation - Assu

Share-Based Compensation - Assumptions Used in Calculating Award Value (Details) - Stock options	9 Months Ended
	Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	2.00%
Expected term	6 years
Volatility	54.00%
Dividend yield	0.00%

Share-Based Compensation - Perf

Share-Based Compensation - Performance Share Units (Details) - PSUs - Suncoke LTPEP	9 Months Ended
	Sep. 30, 2017$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares) | shares	237,610
Fair Value per Share (in dollars per share) | $ / shares	$ 11.40
Measurement period	3 years
Pre-tax return of capital for Coke and Coal Logistics businesses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of award allocation	50.00%
Measurement period	3 years
TSR
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Measurement period	3 years
TSR | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Measurement results payout percentage	50.00%
TSR | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Measurement results payout percentage	150.00%

Share-Based Compensation - Comp

Share-Based Compensation - Compensation Expense and Unrecognized Compensation Costs (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Stock options
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Unrecognized Compensation Cost	$ 0.5		$ 0.5
Recognition Period			1 year 2 months
Stock options | Selling, General and Administrative Expenses
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation expense	0.3	$ 0.6	$ 1.1	$ 1.6
RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Unrecognized Compensation Cost	0.5		$ 0.5
Recognition Period			1 year 1 month
RSUs | Selling, General and Administrative Expenses
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation expense	0.2	0.6	$ 0.9	2.1
PSUs
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Unrecognized Compensation Cost	3.6		$ 3.6
Recognition Period			2 years 2 months
PSUs | Selling, General and Administrative Expenses
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation expense	0.5	0.3	$ 1.7	1
Equity Classified Awards | Selling, General and Administrative Expenses
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation expense	1	1.5	3.7	4.7
Cash RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Unrecognized Compensation Cost	1.2		$ 1.2
Recognition Period			1 year 9 months
Cash RSUs | Selling, General and Administrative Expenses
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation expense	0.1	0.2	$ 0.5	0.3
Cash incentive award | Suncoke LTCIP
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Unrecognized Compensation Cost	0.7		$ 0.7
Recognition Period			2 years
Cash incentive award | Selling, General and Administrative Expenses | Suncoke LTCIP
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation expense	0.1	0.1	$ 0.4	0.2
Total liability awards | Selling, General and Administrative Expenses
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation expense	$ 0.2	$ 0.3	$ 0.9	$ 0.5

Acquisition of Noncontrolling56

Acquisition of Noncontrolling Interest (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 26, 2017	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Oct. 25, 2017	Jul. 31, 2017	Apr. 17, 2017
Subsidiary, Sale of Stock [Line Items]
Total cost for purchase of public units				$ 33,600,000	$ 0
Noncontrolling interests decrease				33,600,000
Decrease in additional paid-in capital		$ (2,300,000)		(8,100,000)
Deferred tax adjustment		1,400,000		4,800,000
Change in Ownership Interest
Net income (loss) attributable to SunCoke Energy, Inc.		11,600,000	$ 6,100,000	(11,600,000)	$ (2,600,000)
Decrease in SunCoke Energy, Inc. equity for the purchase of additional interest in the Partnership		(2,300,000)		(8,100,000)
Change from net income (loss) attributable to SunCoke Energy, Inc. and transfers to noncontrolling interest		$ 9,300,000		$ (19,700,000)
Public Unit Purchase Program
Subsidiary, Sale of Stock [Line Items]
Authorized purchase amount								$ 50,000,000
Incremental authorized amount							$ 50,000,000
Number of shares purchased (in shares)		520,573		1,980,977
Total cost for purchase of public units		$ 9,000,000		$ 33,600,000
Noncontrolling interests decrease		$ 5,300,000		$ 20,700,000
Public Unit Purchase Program | Subsequent Event
Subsidiary, Sale of Stock [Line Items]
Number of shares purchased (in shares)	162,767
Total cost for purchase of public units	$ 2,800,000
Change in Ownership Interest
Remaining balance						$ 63,600,000

Earnings per Share - Computatio

Earnings per Share - Computation of EPS (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Weighted-average number of common shares outstanding-basic (in shares)	64.3	64.2	64.3	64.1
Add: Effect of dilutive share-based compensation awards (in shares)	0.9	0.3	0	0
Weighted-average number of shares-diluted (in shares)	65.2	64.5	64.3	64.1

Earnings per Share - Antidiluti

Earnings per Share - Antidilutive Securities Excluded From EPS Calculation (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential dilutive effect excluded from the computation of diluted weighted-average shares outstanding (in shares)	3.1	3.2	4.4	3.9
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential dilutive effect excluded from the computation of diluted weighted-average shares outstanding (in shares)	2.9	3.1	3.3	3.2
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential dilutive effect excluded from the computation of diluted weighted-average shares outstanding (in shares)	0	0.1	0.2	0.3
Performance stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential dilutive effect excluded from the computation of diluted weighted-average shares outstanding (in shares)	0.2	0	0.9	0.4

Supplemental Accumulated Othe59

Supplemental Accumulated Other Comprehensive Loss Information - Changes in Accumulated Other Comprehensive Loss, by Component (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017USD ($)
Accumulated Comprehensive Income [Roll Forward]
Beginning balance	$ 639.9
Other comprehensive income	0.2
Ending balance	508.7
Benefit Plans
Accumulated Comprehensive Income [Roll Forward]
Beginning balance	(4.8)
Other comprehensive income	0.1
Ending balance	(4.7)
Currency Translation Adjustments
Accumulated Comprehensive Income [Roll Forward]
Beginning balance	(14.2)
Other comprehensive income	0.1
Ending balance	(14.1)
Total
Accumulated Comprehensive Income [Roll Forward]
Beginning balance	(19)
Ending balance	$ (18.8)

Supplemental Accumulated Othe60

Supplemental Accumulated Other Comprehensive Loss Information - Reclassifications Out of AOCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Actuarial loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total expense before taxes	$ 0.3	$ 0.2	$ 0.7	$ 0.6
Prior service benefit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total expense before taxes	(0.2)	(0.2)	(0.6)	(0.6)
Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total expense before taxes	0.1	0	0.1	0
Less income tax benefit	0	0	0	0
Total expense, net of tax	$ 0.1	$ 0	$ 0.1	$ 0

Fair Value Measurement (Details

Fair Value Measurement (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration adjustments	$ (2)	$ (4.6)	$ (1.7)	$ (8.3)
Fair value of Company's debt	908.7		908.7		$ 854.4
Total borrowings	887.9		887.9		858
Cost of Products Sold and Operating Expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration adjustments	2	$ 4.6	1.7	$ 8.3
Fair Value, Inputs, Level 3 | SunCoke Energy Partners, L.P. | Convent Marine Terminal | Other Deferred Credits and Liabilities, Non-Current
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business combination, contingent consideration	2.5		2.5		4.2
Cash Equivalents | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents, fair value	$ 6.7		$ 6.7		$ 4.4

Business Segment Information (D

Business Segment Information (Details Textual) T in Millions	9 Months Ended
	Sep. 30, 2017Cokemaking_facilitysegmentT
Segment Reporting [Abstract]
Number of reportable segments | segment	3
Number of facilities (in cokemaking facilities) | Cokemaking_facility	5
Coal Logistics
Segment Reporting Information [Line Items]
Coal handling capacity (in tons) | T	40

Business Segment Information -

Business Segment Information - Segment Profit or Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Sales and other operating revenues	$ 339	$ 293.9	$ 971.9	$ 897.7
Adjusted EBITDA	62.1	49.4	165.2	139.7
Depreciation and amortization expense	30.6	25.6	97.2	82.4
Capital expenditures	27.2	12.7	49.6	42.9
Domestic Coke
Segment Reporting Information [Line Items]
Adjusted EBITDA	55.6	52.1	149.3	157.4
Depreciation and amortization expense	24	19.1	77.4	59.1
Capital expenditures	26	8.4	45.9	25.3
Brazil Coke
Segment Reporting Information [Line Items]
Adjusted EBITDA	4.6	3.2	13.5	7.9
Depreciation and amortization expense	0.2	0.1	0.5	0.5
Coal Logistics
Segment Reporting Information [Line Items]
Adjusted EBITDA	12.6	7.3	35.7	18.6
Depreciation and amortization expense	6.1	5.6	18.3	19
Capital expenditures	0.5	3.9	1.8	16.3
Corporate and Other
Segment Reporting Information [Line Items]
Sales and other operating revenues	0	0	0	1.5
Adjusted EBITDA	(10.7)	(13.2)	(33.3)	(44.2)
Depreciation and amortization expense	0.3	0.8	1	3.8
Capital expenditures	0.7	0.4	1.9	1.3
Coal Mining
Segment Reporting Information [Line Items]
Adjusted EBITDA	(2)	(2.5)	(8.2)	(11.8)
Operating Segments | Domestic Coke
Segment Reporting Information [Line Items]
Sales and other operating revenues	309.7	273.2	884.9	836.2
Operating Segments | Brazil Coke
Segment Reporting Information [Line Items]
Sales and other operating revenues	10.9	8.5	32.2	23.5
Operating Segments | Coal Logistics
Segment Reporting Information [Line Items]
Sales and other operating revenues	18.4	12.2	54.8	36.5
Elimination of intersegment sales
Segment Reporting Information [Line Items]
Sales and other operating revenues	(4.8)	(4.9)	(15)	(37.3)
Elimination of intersegment sales | Coal Logistics
Segment Reporting Information [Line Items]
Sales and other operating revenues	4.8	4.9	15	15.3
Corporate and Other intersegment sales
Segment Reporting Information [Line Items]
Sales and other operating revenues	$ 0	$ 0	$ 0	$ 22

Business Segment Information Bu

Business Segment Information Business Segment Information - Segment Assets (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Segment assets, excluding tax assets	$ 2,105.9	$ 2,116.3
Tax assets	9	4.6
Total assets	2,114.9	2,120.9
Operating Segments | Domestic Coke
Segment Reporting Information [Line Items]
Segment assets, excluding tax assets	1,488.9	1,495
Operating Segments | Brazil Coke
Segment Reporting Information [Line Items]
Segment assets, excluding tax assets	12	32.6
Operating Segments | Coal Logistics
Segment Reporting Information [Line Items]
Segment assets, excluding tax assets	499.4	515.6
Corporate and Other
Segment Reporting Information [Line Items]
Segment assets, excluding tax assets	$ 105.6	$ 73.1

Business Segment Information 65

Business Segment Information - Sales and Other Operating Revenue by Product or Service (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Sales and other operating revenue:
Sales and other operating revenue	$ 339	$ 293.9	$ 971.9	$ 897.7
Cokemaking
Sales and other operating revenue:
Sales and other operating revenue	293	257.8	839.1	789.5
Energy
Sales and other operating revenue:
Sales and other operating revenue	14.7	14.1	39.3	43
Logistics
Sales and other operating revenue:
Sales and other operating revenue	17	11.8	52.1	35.4
Operating and licensing fees
Sales and other operating revenue:
Sales and other operating revenue	10.9	8.4	32.2	23.5
Other
Sales and other operating revenue:
Sales and other operating revenue	$ 3.4	$ 1.8	$ 9.2	$ 6.3

Business Segment Information 66

Business Segment Information - Adjusted EBITDA (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Schedule of Equity Method Investments [Line Items]
Net cash provided by operating activities	$ 73.9	$ 44.6	$ 128.3	$ 166.1
Subtract:
Loss on divestiture of business	0	0	0	14.7
Depreciation and amortization expense	30.6	25.6	97.2	82.4
Deferred income tax expense	(9.4)	0.9	70.4	4.5
Loss (gain) loss on extinguishment of debt	0.1	(1)	20.4	(24.9)
Changes in working capital and other	33.8	4.7	10.7	61.4
Net income (loss)	18.8	14.4	(70.4)	28
Add:
Coal rationalization costs	0	0.2	0	0.4
Depreciation and amortization expense	30.6	25.6	97.2	82.4
Interest expense, net	16.1	12.9	45	40.3
Loss (gain) on extinguishment of debt	0.1	(1)	20.4	(24.9)
Income tax (benefit) expense	(1.5)	2.6	69.4	5.9
Contingent consideration adjustments	(2)	(4.6)	(1.7)	(8.3)
Expiration of land deposits and write-off of costs related to potential new cokemaking facility	0	0	5.3	1.9
Non-cash reversal of acquired contractual obligation	0	(0.7)	0	(0.7)
Adjusted EBITDA	62.1	49.4	165.2	139.7
Subtract: Adjusted EBITDA attributable to noncontrolling interest	21.9	18.9	61	57.8
Adjusted EBITDA attributable to SunCoke Energy, Inc.	40.2	30.5	104.2	81.9
Contingent consideration adjustments	(2)	(4.6)	(1.7)	(8.3)
Cost of Products Sold and Operating Expenses
Add:
Contingent consideration adjustments	2	4.6	1.7	8.3
Contingent consideration adjustments	$ 2	$ 4.6	$ 1.7	$ 8.3

Supplemental Condensed Consol67

Supplemental Condensed Consolidating Financial Information - Textuals (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Guarantor Obligations [Line Items]
Percentage of restricted net assets, less than		25.00%
Notes (Guarantor Subsidiaries)
Guarantor Obligations [Line Items]
Guarantors obligations under the credit agreement	$ 44.6

Supplemental Condensed Consol68

Supplemental Condensed Consolidating Financial Information - Consolidating Statement of Operations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues
Sales and other operating revenue	$ 339	$ 293.9	$ 971.9	$ 897.7
Equity in earnings (loss) of subsidiaries	0	0	0	0
Total revenues, net of equity earnings (loss) of subsidiaries	339	293.9	971.9	897.7
Costs and operating expenses
Cost of products sold and operating expenses	257.2	217.6	748.8	682.5
Selling, general and administrative expenses	17.7	21.8	61.5	68.8
Depreciation and amortization expense	30.6	25.6	97.2	82.4
Loss on divestiture of business	0	0	0	14.7
Total costs and operating expenses	305.5	265	907.5	848.4
Operating income	33.5	28.9	64.4	49.3
Interest (income) expense, net - affiliate	0	0	0	0
Interest expense (income), net	16.1	12.9	45	40.3
Total interest expense (income), net	16.1	12.9	45	40.3
Loss (gain) on extinguishment of debt	0.1	(1)	20.4	(24.9)
Income (loss) before income tax (benefit) expense	17.3	17	(1)	33.9
Income tax (benefit) expense	(1.5)	2.6	69.4	5.9
Net income (loss)	18.8	14.4	(70.4)	28
Less: Net income (loss) attributable to noncontrolling interests	7.2	8.3	(58.8)	30.6
Net income (loss) attributable to SunCoke Energy, Inc.	11.6	6.1	(11.6)	(2.6)
Comprehensive income (loss)	19.2	14.3	(70.2)	29
Less: Comprehensive income (loss) attributable to noncontrolling interests	7.2	8.3	(58.8)	30.6
Comprehensive income (loss) attributable to SunCoke Energy, Inc.	12	6	(11.4)	(1.6)
Reportable Legal Entities | Issuer
Revenues
Sales and other operating revenue	0	0	0	0
Equity in earnings (loss) of subsidiaries	14.2	3.5	0.7	2.1
Total revenues, net of equity earnings (loss) of subsidiaries	14.2	3.5	0.7	2.1
Costs and operating expenses
Cost of products sold and operating expenses	0	0	0	0
Selling, general and administrative expenses	1.5	3.1	6.5	8.9
Depreciation and amortization expense	0	0	0	0
Loss on divestiture of business				0
Total costs and operating expenses	1.5	3.1	6.5	8.9
Operating income	12.7	0.4	(5.8)	(6.8)
Interest (income) expense, net - affiliate	0	0	0	0
Interest expense (income), net	1.3	1.4	3.8	4.6
Total interest expense (income), net	1.3	1.4	3.8	4.6
Loss (gain) on extinguishment of debt	0	0	0.4	0
Income (loss) before income tax (benefit) expense	11.4	(1)	(10)	(11.4)
Income tax (benefit) expense	(0.2)	(7.1)	1.6	(8.8)
Net income (loss)	11.6	6.1	(11.6)	(2.6)
Less: Net income (loss) attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to SunCoke Energy, Inc.	11.6	6.1	(11.6)	(2.6)
Comprehensive income (loss)	12	6	(11.4)	(1.6)
Less: Comprehensive income (loss) attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to SunCoke Energy, Inc.	12	6	(11.4)	(1.6)
Reportable Legal Entities | Guarantor Subsidiaries
Revenues
Sales and other operating revenue	53.6	43	156	127.9
Equity in earnings (loss) of subsidiaries	6.6	15.4	(95.5)	26.7
Total revenues, net of equity earnings (loss) of subsidiaries	60.2	58.4	60.5	154.6
Costs and operating expenses
Cost of products sold and operating expenses	40.5	31.9	116	97.4
Selling, general and administrative expenses	3.4	6.3	18.4	22.1
Depreciation and amortization expense	1.8	2.4	5.6	6.9
Loss on divestiture of business				0
Total costs and operating expenses	45.7	40.6	140	126.4
Operating income	14.5	17.8	(79.5)	28.2
Interest (income) expense, net - affiliate	(1.9)	(1.8)	(5.6)	(5.7)
Interest expense (income), net	(0.1)	0	(0.3)	0
Total interest expense (income), net	(2)	(1.8)	(5.9)	(5.7)
Loss (gain) on extinguishment of debt	0	0	0	0
Income (loss) before income tax (benefit) expense	16.5	19.6	(73.6)	33.9
Income tax (benefit) expense	(1.2)	12.6	(87.2)	19.7
Net income (loss)	17.7	7	13.6	14.2
Less: Net income (loss) attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to SunCoke Energy, Inc.	17.7	7	13.6	14.2
Comprehensive income (loss)	17.7	6.9	13.6	14.1
Less: Comprehensive income (loss) attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to SunCoke Energy, Inc.	17.7	6.9	13.6	14.1
Reportable Legal Entities | Non- Guarantor Subsidiaries
Revenues
Sales and other operating revenue	286.5	251.9	819.2	772.8
Equity in earnings (loss) of subsidiaries	0	0	0	0
Total revenues, net of equity earnings (loss) of subsidiaries	286.5	251.9	819.2	772.8
Costs and operating expenses
Cost of products sold and operating expenses	217.8	186.7	636.1	588.1
Selling, general and administrative expenses	12.8	12.4	36.6	37.8
Depreciation and amortization expense	28.8	23.2	91.6	75.5
Loss on divestiture of business				14.7
Total costs and operating expenses	259.4	222.3	764.3	716.1
Operating income	27.1	29.6	54.9	56.7
Interest (income) expense, net - affiliate	1.9	1.8	5.6	5.7
Interest expense (income), net	14.9	11.5	41.5	35.7
Total interest expense (income), net	16.8	13.3	47.1	41.4
Loss (gain) on extinguishment of debt	0.1	(1)	20	(24.9)
Income (loss) before income tax (benefit) expense	10.2	17.3	(12.2)	40.2
Income tax (benefit) expense	(0.1)	(2.9)	155	(5)
Net income (loss)	10.3	20.2	(167.2)	45.2
Less: Net income (loss) attributable to noncontrolling interests	7.2	8.3	(58.8)	30.6
Net income (loss) attributable to SunCoke Energy, Inc.	3.1	11.9	(108.4)	14.6
Comprehensive income (loss)	10.7	20.1	(167)	46.2
Less: Comprehensive income (loss) attributable to noncontrolling interests	7.2	8.3	(58.8)	30.6
Comprehensive income (loss) attributable to SunCoke Energy, Inc.	3.5	11.8	(108.2)	15.6
Combining and Consolidating Adjustments
Revenues
Sales and other operating revenue	(1.1)	(1)	(3.3)	(3)
Equity in earnings (loss) of subsidiaries	(20.8)	(18.9)	94.8	(28.8)
Total revenues, net of equity earnings (loss) of subsidiaries	(21.9)	(19.9)	91.5	(31.8)
Costs and operating expenses
Cost of products sold and operating expenses	(1.1)	(1)	(3.3)	(3)
Selling, general and administrative expenses	0	0	0	0
Depreciation and amortization expense	0	0	0	0
Loss on divestiture of business				0
Total costs and operating expenses	(1.1)	(1)	(3.3)	(3)
Operating income	(20.8)	(18.9)	94.8	(28.8)
Interest (income) expense, net - affiliate	0	0	0	0
Interest expense (income), net	0	0	0	0
Total interest expense (income), net	0	0	0	0
Loss (gain) on extinguishment of debt	0	0	0	0
Income (loss) before income tax (benefit) expense	(20.8)	(18.9)	94.8	(28.8)
Income tax (benefit) expense	0	0	0	0
Net income (loss)	(20.8)	(18.9)	94.8	(28.8)
Less: Net income (loss) attributable to noncontrolling interests	0	0	0	0
Net income (loss) attributable to SunCoke Energy, Inc.	(20.8)	(18.9)	94.8	(28.8)
Comprehensive income (loss)	(21.2)	(18.7)	94.6	(29.7)
Less: Comprehensive income (loss) attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to SunCoke Energy, Inc.	$ (21.2)	$ (18.7)	$ 94.6	$ (29.7)

Supplemental Condensed Consol69

Supplemental Condensed Consolidating Financial Information - Consolidating Balance Sheet (Details) - USD ($) $ / shares in Units, $ in Millions	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 148.7	$ 134	$ 105.3	$ 123.4
Receivables	70.2	60.7
Receivable from redemption of Brazilian investment	0	20.5
Inventories	121.7	92.5
Income tax receivable	9	4.6
Other current assets	7.1	3.8
Advances to affiliate	0	0
Total current assets	356.7	316.1
Notes receivable from affiliate	0	0
Properties, plants and equipment, net	1,505.4	1,542.6
Goodwill	76.9	76.9
Other intangible assets, net	170.7	179
Deferred charges and other assets	5.2	6.3
Investment in subsidiaries	0	0
Total assets	2,114.9	2,120.9
Liabilities and Equity
Advances from affiliate	0	0
Accounts payable	138.1	98.6
Accrued liabilities	51.1	49.8
Deferred revenue	16.6	2.5
Current portion of long-term debt and financing obligation	2.6	4.9
Interest payable	17.6	16.2
Income taxes payable	0	0
Total current liabilities	226	172
Long-term debt and financing obligation	859	849.2
Payable to affiliate	0	0
Accrual for black lung benefits	45.8	45.4
Retirement benefit liabilities	27.4	29
Deferred income taxes	417.9	352.5
Asset retirement obligations	14.1	13.9
Other deferred credits and liabilities	16	19
Total liabilities	1,606.2	1,481
Equity
Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at September 30, 2017 and December 31, 2016	0	0
Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,819,720 and 71,707,304 shares at September 30, 2017 and December 31, 2016, respectively	0.7	0.7
Treasury stock, 7,477,657 shares at September 30, 2017 and December 31, 2016, respectively	(140.7)	(140.7)
Additional paid-in capital	487.9	492.1
Accumulated other comprehensive loss	(18.8)	(19)
Retained deficit	(33.9)	(22)
Total SunCoke Energy, Inc. stockholders’ equity	295.2	311.1
Noncontrolling interests	213.5	328.8
Total equity	508.7	639.9
Total liabilities and equity	$ 2,114.9	$ 2,120.9
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares, issued (in shares)	71,819,720	71,707,304
Treasury stock, shares (in shares)	7,477,657	7,477,657
Reportable Legal Entities | Issuer
Assets
Cash and cash equivalents	$ 0	$ 0	0	0
Receivables	0	0
Receivable from redemption of Brazilian investment		0
Inventories	0	0
Income tax receivable	0	17.8
Other current assets	0	0.2
Advances to affiliate	0	0
Total current assets	0	18
Notes receivable from affiliate	0	0
Properties, plants and equipment, net	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Deferred charges and other assets	0	0
Investment in subsidiaries	530.6	542.7
Total assets	530.6	560.7
Liabilities and Equity
Advances from affiliate	165.2	184.2
Accounts payable	0	0
Accrued liabilities	1	1.7
Deferred revenue	0	0
Current portion of long-term debt and financing obligation	0	0
Interest payable	0.6	1.5
Income taxes payable	1.2	0
Total current liabilities	168	187.4
Long-term debt and financing obligation	42.7	43.5
Payable to affiliate	0	0
Accrual for black lung benefits	0	0
Retirement benefit liabilities	0	0
Deferred income taxes	21.7	15.9
Asset retirement obligations	0	0
Other deferred credits and liabilities	3	2.8
Total liabilities	235.4	249.6
Equity
Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at September 30, 2017 and December 31, 2016	0	0
Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,819,720 and 71,707,304 shares at September 30, 2017 and December 31, 2016, respectively	0.7	0.7
Treasury stock, 7,477,657 shares at September 30, 2017 and December 31, 2016, respectively	(140.7)	(140.7)
Additional paid-in capital	487.9	492.1
Accumulated other comprehensive loss	(18.8)	(19)
Retained deficit	(33.9)	(22)
Total SunCoke Energy, Inc. stockholders’ equity	295.2	311.1
Noncontrolling interests	0	0
Total equity	295.2	311.1
Total liabilities and equity	530.6	560.7
Reportable Legal Entities | Guarantor Subsidiaries
Assets
Cash and cash equivalents	100.2	59.7	29.1	70.6
Receivables	15	12.2
Receivable from redemption of Brazilian investment		0
Inventories	10.4	9
Income tax receivable	0	0
Other current assets	2.3	1.8
Advances to affiliate	248.8	282.2
Total current assets	376.7	364.9
Notes receivable from affiliate	89	89
Properties, plants and equipment, net	60.3	62.8
Goodwill	3.4	3.4
Other intangible assets, net	1.8	2.3
Deferred charges and other assets	4.1	5.1
Investment in subsidiaries	723.5	688.2
Total assets	1,258.8	1,215.7
Liabilities and Equity
Advances from affiliate	0	0
Accounts payable	17.2	13.6
Accrued liabilities	16.2	20.5
Deferred revenue	0	0
Current portion of long-term debt and financing obligation	0	0
Interest payable	0	0
Income taxes payable	75.4	87.5
Total current liabilities	108.8	121.6
Long-term debt and financing obligation	0	0
Payable to affiliate	300	300
Accrual for black lung benefits	13	12.3
Retirement benefit liabilities	13.6	14.1
Deferred income taxes	265.9	371
Asset retirement obligations	0	0
Other deferred credits and liabilities	6.8	6.4
Total liabilities	708.1	825.4
Equity
Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at September 30, 2017 and December 31, 2016	0	0
Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,819,720 and 71,707,304 shares at September 30, 2017 and December 31, 2016, respectively	0	0
Treasury stock, 7,477,657 shares at September 30, 2017 and December 31, 2016, respectively	0	0
Additional paid-in capital	188.9	42.1
Accumulated other comprehensive loss	(1.6)	(1.6)
Retained deficit	363.4	349.8
Total SunCoke Energy, Inc. stockholders’ equity	550.7	390.3
Noncontrolling interests	0	0
Total equity	550.7	390.3
Total liabilities and equity	1,258.8	1,215.7
Reportable Legal Entities | Non- Guarantor Subsidiaries
Assets
Cash and cash equivalents	48.5	74.3	76.2	52.8
Receivables	55.2	48.5
Receivable from redemption of Brazilian investment		20.5
Inventories	111.3	83.5
Income tax receivable	85.6	74.3
Other current assets	4.8	1.8
Advances to affiliate	0	0
Total current assets	305.4	302.9
Notes receivable from affiliate	300	300
Properties, plants and equipment, net	1,445.1	1,479.8
Goodwill	73.5	73.5
Other intangible assets, net	168.9	176.7
Deferred charges and other assets	1.1	1.2
Investment in subsidiaries	0	0
Total assets	2,294	2,334.1
Liabilities and Equity
Advances from affiliate	83.6	98
Accounts payable	120.9	85
Accrued liabilities	33.9	27.6
Deferred revenue	16.6	2.5
Current portion of long-term debt and financing obligation	2.6	4.9
Interest payable	17	14.7
Income taxes payable	0	0
Total current liabilities	274.6	232.7
Long-term debt and financing obligation	816.3	805.7
Payable to affiliate	89	89
Accrual for black lung benefits	32.8	33.1
Retirement benefit liabilities	13.8	14.9
Deferred income taxes	130.3	(34.4)
Asset retirement obligations	14.1	13.9
Other deferred credits and liabilities	6.2	9.8
Total liabilities	1,377.1	1,164.7
Equity
Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at September 30, 2017 and December 31, 2016	0	0
Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,819,720 and 71,707,304 shares at September 30, 2017 and December 31, 2016, respectively	0	0
Treasury stock, 7,477,657 shares at September 30, 2017 and December 31, 2016, respectively	0	0
Additional paid-in capital	643.4	672.2
Accumulated other comprehensive loss	(17.3)	(17.4)
Retained deficit	77.3	185.8
Total SunCoke Energy, Inc. stockholders’ equity	703.4	840.6
Noncontrolling interests	213.5	328.8
Total equity	916.9	1,169.4
Total liabilities and equity	2,294	2,334.1
Combining and Consolidating Adjustments
Assets
Cash and cash equivalents	0	0	$ 0	$ 0
Receivables	0	0
Receivable from redemption of Brazilian investment		0
Inventories	0	0
Income tax receivable	(76.6)	(87.5)
Other current assets	0	0
Advances to affiliate	(248.8)	(282.2)
Total current assets	(325.4)	(369.7)
Notes receivable from affiliate	(389)	(389)
Properties, plants and equipment, net	0	0
Goodwill	0	0
Other intangible assets, net	0	0
Deferred charges and other assets	0	0
Investment in subsidiaries	(1,254.1)	(1,230.9)
Total assets	(1,968.5)	(1,989.6)
Liabilities and Equity
Advances from affiliate	(248.8)	(282.2)
Accounts payable	0	0
Accrued liabilities	0	0
Deferred revenue	0	0
Current portion of long-term debt and financing obligation	0	0
Interest payable	0	0
Income taxes payable	(76.6)	(87.5)
Total current liabilities	(325.4)	(369.7)
Long-term debt and financing obligation	0	0
Payable to affiliate	(389)	(389)
Accrual for black lung benefits	0	0
Retirement benefit liabilities	0	0
Deferred income taxes	0	0
Asset retirement obligations	0	0
Other deferred credits and liabilities	0	0
Total liabilities	(714.4)	(758.7)
Equity
Preferred stock, $0.01 par value. Authorized 50,000,000 shares; no issued shares at September 30, 2017 and December 31, 2016	0	0
Common stock, $0.01 par value. Authorized 300,000,000 shares; issued 71,819,720 and 71,707,304 shares at September 30, 2017 and December 31, 2016, respectively	0	0
Treasury stock, 7,477,657 shares at September 30, 2017 and December 31, 2016, respectively	0	0
Additional paid-in capital	(832.3)	(714.3)
Accumulated other comprehensive loss	18.9	19
Retained deficit	(440.7)	(535.6)
Total SunCoke Energy, Inc. stockholders’ equity	(1,254.1)	(1,230.9)
Noncontrolling interests	0	0
Total equity	(1,254.1)	(1,230.9)
Total liabilities and equity	$ (1,968.5)	$ (1,989.6)

Supplemental Condensed Consol70

Supplemental Condensed Consolidating Financial Information - Consolidating Statement of Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Cash Flows from Operating Activities:
Net income (loss)	$ 18.8	$ 14.4	$ (70.4)	$ 28
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Loss on divestiture of business	0	0	0	14.7
Depreciation and amortization expense	30.6	25.6	97.2	82.4
Deferred income tax expense (benefit)	(9.4)	0.9	70.4	4.5
Payments in excess of expense for postretirement plan benefits			(1.6)	(2)
Share-based compensation expense			4.1	5
Equity in (earnings) loss of subsidiaries	0	0	0	0
Loss (gain) loss on extinguishment of debt	0.1	(1)	20.4	(24.9)
Changes in working capital pertaining to operating activities:
Receivables			(9.5)	10.3
Inventories			(29.2)	24.1
Accounts payable			32.9	(3.5)
Accrued liabilities			1.3	6.7
Deferred revenue			14.1	25.5
Interest payable			1.4	(12.1)
Income taxes			(4.4)	4.4
Other			1.6	3
Net cash provided by (used in) operating activities	73.9	44.6	128.3	166.1
Cash Flows from Investing Activities:
Capital expenditures	(27.2)	(12.7)	(49.6)	(42.9)
Decrease in restricted cash			0.1	17.5
Divestiture of business			0	(12.8)
Return of Brazilian investment			20.5	0
Other investing activities			0	2.1
Net cash used in investing activities			(29)	(36.1)
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt			620.6	0
Net proceeds from issuance of SunCoke Energy Partners, L.P. units				0
Repayment of long-term debt			(644.9)	(60.8)
Repayment of financing obligation			(1.8)	(0.5)
Proceeds from revolving credit facility			268	20
Repayment of revolving credit facility			(240)	(85.4)
Debt issuance costs			(16.6)	(0.2)
Proceeds from financing obligation			0	16.2
Acquisition of additional interest in the Partnership			(33.6)	0
Cash distribution to noncontrolling interests			(36)	(36.9)
Other financing activities			(0.3)	(0.5)
Net (decrease) increase in advances from affiliate			0	0
Net cash (used in) provided by financing activities			(84.6)	(148.1)
Net increase (decrease) in cash and cash equivalents			14.7	(18.1)
Cash and cash equivalents at beginning of period			134	123.4
Cash and cash equivalents at end of period	148.7	105.3	148.7	105.3
Reportable Legal Entities | Issuer
Cash Flows from Operating Activities:
Net income (loss)	11.6	6.1	(11.6)	(2.6)
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Loss on divestiture of business				0
Depreciation and amortization expense	0	0	0	0
Deferred income tax expense (benefit)			6	(7.8)
Payments in excess of expense for postretirement plan benefits			0	0
Share-based compensation expense			3.9	5
Equity in (earnings) loss of subsidiaries	(14.2)	(3.5)	(0.7)	(2.1)
Loss (gain) loss on extinguishment of debt	0	0	0.4	0
Changes in working capital pertaining to operating activities:
Receivables			0	0
Inventories			0	0
Accounts payable			0	0
Accrued liabilities			(0.7)	0.5
Deferred revenue			0	0
Interest payable			(0.9)	(0.9)
Income taxes			19	(13.1)
Other			0.9	3.1
Net cash provided by (used in) operating activities			16.3	(17.9)
Cash Flows from Investing Activities:
Capital expenditures			0	0
Decrease in restricted cash			0	0
Divestiture of business				0
Return of Brazilian investment			0
Other investing activities				0
Net cash used in investing activities			0	0
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt			0
Net proceeds from issuance of SunCoke Energy Partners, L.P. units				0
Repayment of long-term debt			0	0
Repayment of financing obligation			0	0
Proceeds from revolving credit facility			0	0
Repayment of revolving credit facility			0	(60.4)
Debt issuance costs			(1.7)	0
Proceeds from financing obligation				0
Acquisition of additional interest in the Partnership			0
Cash distribution to noncontrolling interests			0
Other financing activities			(0.3)	(0.3)
Net (decrease) increase in advances from affiliate			(14.3)	78.6
Net cash (used in) provided by financing activities			(16.3)	17.9
Net increase (decrease) in cash and cash equivalents			0	0
Cash and cash equivalents at beginning of period			0	0
Cash and cash equivalents at end of period	0	0	0	0
Reportable Legal Entities | Guarantor Subsidiaries
Cash Flows from Operating Activities:
Net income (loss)	17.7	7	13.6	14.2
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Loss on divestiture of business				0
Depreciation and amortization expense	1.8	2.4	5.6	6.9
Deferred income tax expense (benefit)			(100.3)	15.9
Payments in excess of expense for postretirement plan benefits			(0.5)	(0.8)
Share-based compensation expense			0	0
Equity in (earnings) loss of subsidiaries	(6.6)	(15.4)	95.5	(26.7)
Loss (gain) loss on extinguishment of debt	0	0	0	0
Changes in working capital pertaining to operating activities:
Receivables			(2.8)	(0.2)
Inventories			(1.4)	(4)
Accounts payable			4.3	6.1
Accrued liabilities			(4.3)	4.1
Deferred revenue			0	0
Interest payable			0	0
Income taxes			(12.1)	3.1
Other			1.6	8.8
Net cash provided by (used in) operating activities			(0.8)	27.4
Cash Flows from Investing Activities:
Capital expenditures			(3.3)	(4.3)
Decrease in restricted cash			0	0
Divestiture of business				0
Return of Brazilian investment			0
Other investing activities				0
Net cash used in investing activities			(3.3)	(4.3)
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt			0
Net proceeds from issuance of SunCoke Energy Partners, L.P. units				0
Repayment of long-term debt			0	0
Repayment of financing obligation			0	0
Proceeds from revolving credit facility			0	0
Repayment of revolving credit facility			0	0
Debt issuance costs			0	0
Proceeds from financing obligation				0
Acquisition of additional interest in the Partnership			(33.6)
Cash distribution to noncontrolling interests			0	0
Other financing activities			0	(0.2)
Net (decrease) increase in advances from affiliate			78.2	(64.4)
Net cash (used in) provided by financing activities			44.6	(64.6)
Net increase (decrease) in cash and cash equivalents			40.5	(41.5)
Cash and cash equivalents at beginning of period			59.7	70.6
Cash and cash equivalents at end of period	100.2	29.1	100.2	29.1
Reportable Legal Entities | Non- Guarantor Subsidiaries
Cash Flows from Operating Activities:
Net income (loss)	10.3	20.2	(167.2)	45.2
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Loss on divestiture of business				14.7
Depreciation and amortization expense	28.8	23.2	91.6	75.5
Deferred income tax expense (benefit)			164.7	(3.6)
Payments in excess of expense for postretirement plan benefits			(1.1)	(1.2)
Share-based compensation expense			0.2	0
Equity in (earnings) loss of subsidiaries	0	0	0	0
Loss (gain) loss on extinguishment of debt	0.1	(1)	20	(24.9)
Changes in working capital pertaining to operating activities:
Receivables			(6.7)	10.5
Inventories			(27.8)	28.1
Accounts payable			28.6	(9.6)
Accrued liabilities			6.3	2.1
Deferred revenue			14.1	25.5
Interest payable			2.3	(11.2)
Income taxes			(11.3)	14.4
Other			(0.9)	(8.9)
Net cash provided by (used in) operating activities			112.8	156.6
Cash Flows from Investing Activities:
Capital expenditures			(46.3)	(38.6)
Decrease in restricted cash			0.1	17.5
Divestiture of business				(12.8)
Return of Brazilian investment			20.5
Other investing activities				2.1
Net cash used in investing activities			(25.7)	(31.8)
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt			620.6
Net proceeds from issuance of SunCoke Energy Partners, L.P. units				0
Repayment of long-term debt			(644.9)	(60.8)
Repayment of financing obligation			(1.8)	(0.5)
Proceeds from revolving credit facility			268	20
Repayment of revolving credit facility			(240)	(25)
Debt issuance costs			(14.9)	(0.2)
Proceeds from financing obligation				16.2
Acquisition of additional interest in the Partnership			0
Cash distribution to noncontrolling interests			(36)	(36.9)
Other financing activities			0	0
Net (decrease) increase in advances from affiliate			(63.9)	(14.2)
Net cash (used in) provided by financing activities			(112.9)	(101.4)
Net increase (decrease) in cash and cash equivalents			(25.8)	23.4
Cash and cash equivalents at beginning of period			74.3	52.8
Cash and cash equivalents at end of period	48.5	76.2	48.5	76.2
Combining and Consolidating Adjustments
Cash Flows from Operating Activities:
Net income (loss)	(20.8)	(18.9)	94.8	(28.8)
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Loss on divestiture of business				0
Depreciation and amortization expense	0	0	0	0
Deferred income tax expense (benefit)			0	0
Payments in excess of expense for postretirement plan benefits			0	0
Share-based compensation expense			0	0
Equity in (earnings) loss of subsidiaries	20.8	18.9	(94.8)	28.8
Loss (gain) loss on extinguishment of debt	0	0	0	0
Changes in working capital pertaining to operating activities:
Receivables			0	0
Inventories			0	0
Accounts payable			0	0
Accrued liabilities			0	0
Deferred revenue			0	0
Interest payable			0	0
Income taxes			0	0
Other			0	0
Net cash provided by (used in) operating activities			0	0
Cash Flows from Investing Activities:
Capital expenditures			0	0
Decrease in restricted cash			0	0
Divestiture of business				0
Return of Brazilian investment			0
Other investing activities				0
Net cash used in investing activities			0	0
Cash Flows from Financing Activities:
Proceeds from issuance of long-term debt			0
Net proceeds from issuance of SunCoke Energy Partners, L.P. units				0
Repayment of long-term debt			0	0
Repayment of financing obligation			0	0
Proceeds from revolving credit facility			0	0
Repayment of revolving credit facility			0	0
Debt issuance costs			0	0
Proceeds from financing obligation				0
Acquisition of additional interest in the Partnership			0
Cash distribution to noncontrolling interests			0	0
Other financing activities			0	0
Net (decrease) increase in advances from affiliate			0	0
Net cash (used in) provided by financing activities			0	0
Net increase (decrease) in cash and cash equivalents			0	0
Cash and cash equivalents at beginning of period			0	0
Cash and cash equivalents at end of period	$ 0	$ 0	$ 0	$ 0