General (Details)	6 Months Ended
Jun. 30, 2017 Cokemaking_facility
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Number of facilities (in cokemaking facilities)	5
SunCoke Energy Partners, L.P. \| 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)	57.00%
SunCoke Energy Partners, L.P. \| Public Unitholders
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Ownership interest, public (as a percent)	41.00%
VISA SunCoke Limited
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Equity ownership percentage	49.00%

Limited Liability Company (LLC) or Limited Partnership (LP), Ownership Interest, Public

No definition available.

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- Definition

Number of facilities.

+ References

No definition available.

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

+ Details

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- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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