Supplemental Balance Sheet Information

6 Months Ended

Jun. 30, 2012

Supplemental Balance Sheet Information [Abstract]

Supplemental Balance Sheet Information

Supplemental Balance Sheet Information

	June 30, 2012			December 31, 2011
Trade Receivables.
Billed trade receivables	$	128.1		$	98.9
Unbilled trade receivables – Note 1	4.1			0.9
Trade receivables, gross	132.2			99.8
Allowance for doubtful receivables	(0.9		)	(0.9		)
Trade receivables, net	$	131.3		$	98.9

Inventories.
Finished products	$	62.0	$	75.9
Work in process	66.8		57.5
Raw materials	52.3		58.1
Operating supplies and repair and maintenance parts	15.7		14.2
Total	$	196.8	$	205.7

Prepaid Expenses and Other Current Assets.
Current derivative assets – Notes 10 and 11	$	1.4	$	—
Current deferred tax assets	63.0		63.0
Current portion of option premiums paid – Notes 10 and 11	0.3		0.4
Short-term restricted cash	0.9		7.8
Prepaid taxes	3.0		3.8
Prepaid expenses	6.1		3.9
Total	$	74.7	$	78.9

Property, Plant and Equipment - Net.
Land and improvements	$	22.6		$	22.6
Buildings and leasehold improvements	49.8			45.9
Machinery and equipment	379.1			356.7
Construction in progress	15.0			24.1
Active property, plant and equipment, gross	466.5			449.3
Accumulated depreciation	(98.9		)	(86.9		)
Active property, plant and equipment, net	367.6			362.4
Idled equipment	5.4			5.4
Total	$	373.0		$	367.8

Other Assets.
Derivative assets – Notes 10 and 11	$	42.0	$	46.2
Option premiums paid – Notes 10 and 11	0.1		0.1
Restricted cash	10.1		10.4
Long-term income tax receivable	2.8		2.8
Deferred financing costs	13.0		7.8
Available for sale securities	5.5		4.9
Other	0.3		0.1
Total	$	73.8	$	72.3

Other Accrued Liabilities.
Current derivative liabilities – Notes 10 and 11	$	13.5	$	14.8
Current portion of option premiums received – Notes 10 and 11	0.1		0.1
Accrued book overdraft (uncleared cash disbursement)	6.2		—
Taxes payable	4.5		2.6
Accrued freight	2.8		2.4
Short-term environmental accrual – Note 9	1.7		1.2
Accrued interest	4.1		2.3
Short-term deferred revenue – Note 1	9.0		13.5
Other	4.4		4.1
Total	$	46.3	$	41.0

Long-term Liabilities.
Derivative liabilities – Notes 10 and 11	$	49.9	$	55.5
Option premiums received – Notes 10 and 11	0.1		0.1
Income tax liabilities	13.7		13.4
Workers’ compensation accruals	20.6		20.8
Long-term environmental accrual – Note 9	20.3		20.8
Long-term asset retirement obligations	4.0		3.8
Long-term deferred revenue – Note 1	1.6		3.3
Deferred compensation liability	5.6		5.1
Other long-term liabilities	2.9		3.2
Total	$	118.7	$	126.0