Property, Plant and Equipment, net (Tables)

3 Months Ended

Mar. 31, 2017

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment, net

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

	March 31, 2017		December 31, 2016
	(in millions)
Land	$	1.4	$	1.4
Buildings and improvements	16.8		16.7
Machinery and equipment	565.3		562.3
Construction in progress	26.1		21.9
Property, plant and equipment	609.6		602.3
Less: Accumulated depreciation and amortization	311.2		301.0
Property, plant and equipment—net	$	298.4	$	301.3

Summary of plant turnaround activity

The following is a summary of capitalized plant turnaround costs:

	Three months ended   March 31,
	2017			2016
	(in millions)
Net capitalized turnaround costs:
Beginning balance	$	26.6		$	37.8
Additions	0.6			1.2
Depreciation	(4.1		)	(3.6		)
Ending balance	$	23.1		$	35.4