Property, Plant and Equipment, net (Tables)

6 Months Ended

Jun. 30, 2012

Property, Plant and Equipment, net

Schedule of property, plant and equipment, net

	June 30, 2012		December 31, 2011
	(in millions)
Land	$	1.6	$	1.6
Building and improvements		7.3		7.3
Plant and equipment		305.4		302.8
Construction in progress		12.2		3.0
		326.5		314.7
Less: Accumulated depreciation and amortization		236.1		226.9
	$	90.4	$	87.8

Summary of plant turnaround activity

	Six months ended June 30,
	2012			2011
	(in millions)
Net capitalized turnaround costs:
Beginning balance	$	6.5		$	13.4
Additions		—			0.3
Depreciation		(2.0	)		(4.4	)
Ending balance	$	4.5		$	9.3