Property, Plant and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment, net

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

	December 31,
	2015		2014
	(in millions)
Land	$	1.6	$	1.6
Buildings and improvements	14.5		8.1
Machinery and equipment	537.5		401.4
Construction in progress	18.9		109.2
	572.5		520.3
Less: Accumulated depreciation and amortization	265.5		260.9
	$	307.0	$	259.4

Summary of plant turnaround activity

The following is a summary of plant turnaround activity for 2015, 2014 and 2013.

	Year ended December 31,
	2015			2014			2013
	(in millions)
Net capitalized turnaround costs:
Beginning balance	$	16.7		$	22.7		$	2.6
Additions	33.6			0.3			24.7
Depreciation	(12.5		)	(6.3		)	(4.6		)
Ending balance	$	37.8		$	16.7		$	22.7