Property, Plant and Equipment, net (Tables)

9 Months Ended

Sep. 30, 2017

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment, net

Property, plant and equipment—net consisted of the following:

	September 30, 2017		December 31, 2016
	(in millions)
Land	$	1.4	$	1.4
Buildings and improvements	16.9		16.7
Machinery and equipment	566.0		562.3
Construction in progress	32.0		21.9
Property, plant and equipment	616.3		602.3
Less: Accumulated depreciation and amortization	328.6		301.0
Property, plant and equipment—net	$	287.7	$	301.3

Summary of plant turnaround activity

The following is a summary of capitalized plant turnaround costs:

	Nine months ended   September 30,
	2017			2016
	(in millions)
Net capitalized turnaround costs:
Beginning balance	$	26.6		$	37.8
Additions	1.9			3.5
Depreciation	(11.7		)	(11.6		)
Ending balance	$	16.8		$	29.7