Supplemental Balance Sheet Information

9 Months Ended

Sep. 30, 2011

Supplemental Balance Sheet Information [Abstract]

Supplemental Balance Sheet Information

Supplemental Balance Sheet Information

	September 30, 2011			December 31, 2010
Trade Receivables.
Billed trade receivables	$	122.5		$	82.5
Unbilled trade receivables – Note 1	7.3			1.1
Trade receivables, gross	129.8			83.6
Allowance for doubtful receivables	(0.7		)	(0.6		)
Trade receivables, net	$	129.1		$	83.0

Inventories.
Finished products	$	61.7	$	53.8
Work in process	60.9		49.6
Raw materials	58.1		50.9
Operating supplies and repairs and maintenance parts	13.9		13.2
Total	$	194.6	$	167.5

Prepaid Expenses and Other Current Assets.
Current derivative assets – Notes 11 and 12	$	2.0	$	22.1
Current deferred tax assets	40.6		46.8
Current portion of option premiums paid – Notes 11 and 12	1.7		5.6
Short-term restricted cash	7.8		0.9
Prepaid taxes	2.7		1.3
Prepaid expenses	4.1		3.4
Total	$	58.9	$	80.1

Property, Plant and Equipment.
Land and improvements	$	23.3		$	23.3
Buildings	45.8			43.5
Machinery and equipment	351.8			338.0
Construction in progress	18.6			7.7
Active property, plant and equipment, gross	439.5			412.5
Accumulated depreciation	(81.1		)	(63.9		)
Active property, plant and equipment, net	358.4			348.6
Idled equipment	5.4			5.5
Property, plant, and equipment, net	$	363.8		$	354.1

Other Assets.
Derivative assets – Notes 11 and 12	$	38.3	$	50.8
Option premiums paid – Notes 11 and 12	0.2		0.6
Restricted cash	10.5		16.3
Long-term income tax receivable	2.8		2.9
Deferred financing costs	8.3		7.7
Available for sale securities	4.6		4.6
Other	0.1		0.1
Total	$	64.8	$	83.0

Other Accrued Liabilities.
Current derivative liabilities – Notes 11 and 12	$	9.1	$	8.9
Current portion of option premiums received – Notes 11 and 12	1.9		7.0
Current portion of income tax liabilities	1.1		1.1
Taxes payable	2.8		1.8
Accrued annual VEBA contribution	—		2.1
Accrued freight	2.4		1.9
Short-term environmental accrual – Note 10	1.1		1.1
Accrued interest	4.0		2.1
Short-term deferred revenue – Note 1	14.1		10.8
Other	4.5		5.2
Total	$	41.0	$	42.0

Long-term Liabilities.
Derivative liabilities – Notes 11 and 12	$	49.2	$	62.2
Option premiums received – Notes 11 and 12	0.2		0.3
Income tax liabilities	11.9		12.9
Workers’ compensation accruals	17.0		15.9
Long-term environmental accrual – Note 10	20.3		19.1
Long-term asset retirement obligations	3.8		3.8
Long-term deferred revenue – Note 1	6.0		13.2
Deferred compensation liability	4.8		4.9
Other long-term liabilities	2.5		2.4
Total	$	115.7	$	134.7