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Property, Plant, and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Summary of costs for property, plant, and equipment

The lives used in computing depreciation for such assets are as follows:

Asset	Range of Useful Lives, in Years
Improvements to land	15 to 30
Buildings	20 to 30
Machinery and equipment	5 to 30
Automotive equipment	5 to 15
Furniture and fixtures	3 to 10
Aircraft	20
Railcars	25 to 30

roperty, plant, and equipment consisted of the following:

	December 31,
	2016				2015
	(in millions)
Land and improvements	$	46.5			$	38.6
Buildings	64.8				53.6
Machinery and equipment	3,656.5				2,723.0
Automotive equipment	24.7				24.8
Furniture and fixtures	28.9				21.3
Leasehold improvements	3.6				3.6
Aircraft	3.6				3.6
Railcars	16.8				16.3
Construction in progress	54.2				122.3
	3,899.6				3,007.1
Accumulated depreciation	1,227.5				1,040.0
Total Property, Plant and Equipment, net	$	2,672.1			$	1,967.1

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: 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))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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