Property, Plant and Equipment, net (Tables)

6 Months Ended

Jun. 30, 2016

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment, net

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

	June 30, 2016		December 31, 2015
	(in millions)
Land	$	1.6	$	1.6
Buildings and improvements	16.5		14.5
Machinery and equipment	555.6		537.5
Construction in progress	13.4		18.9
Property, plant and equipment	587.1		572.5
Less: Accumulated depreciation and amortization	280.3		265.5
Property, plant and equipment, net	$	306.8	$	307.0

Summary of plant turnaround activity

The following is a summary of capitalized plant turnaround costs:

	Six months ended   June 30,
	2016			2015
	(in millions)
Net capitalized turnaround costs:
Beginning balance	$	37.8		$	16.7
Additions	2.1			30.7
Depreciation	(7.5		)	(5.0		)
Ending balance	$	32.4		$	42.4