v3.3.0.814

Property, Plant and Equipment - Property, Plant and Equipment (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 1,496.7	$ 1,361.7
Less accumulated depreciation	387.5	353.1
Net property, plant and equipment	1,109.2	1,008.6
Land [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	5.5	5.5
Pipelines and Related Assets [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	1,085.0	1,081.4
Storage and Delivery Facilities [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	197.7	165.8
Assets Under Construction [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	184.3	85.3
Other [Member]
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 24.2	$ 23.7

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 360



-SubTopic 10



-Section 50



-Paragraph 1



-Subparagraph (c)



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-Section S99



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- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 360



-SubTopic 10



-Section 50



-Paragraph 1



-Subparagraph (b)



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Reference 2: http://www.xbrl.org/2003/role/presentationRef



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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.5-02.13)



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Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



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-Section 50



-Paragraph 1



-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229



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