Statement of Consolidated Cash Flows (Unaudited) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 15.8		$ 8.9
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	11.6		9.0
Amortization of definite-lived intangible assets	1.1
Amortization of debt discount and debt issuance costs	3.8		1.5
Deferred income taxes	8.7		5.6
Non-cash equity compensation	2.8		3.1
Net non-cash LIFO charges	19.9		8.2
Non-cash unrealized losses on derivative positions	7.1		17.9
Amortization of option premiums (received) paid, net	(0.6)		0.7
Non-cash impairment charges			1.9
Losses on disposition of property, plant and equipment	0.1		0.1
Non-cash changes in net periodic benefit (income) costs relating to the VEBAs1	(4.4)	[1]	0.9	[1]
Other non-cash changes in assets and liabilities	0.2		0.2
Changes in operating assets and liabilities, net of effect of acquisition:
Trade and other receivables	(31.1)		(11.3)
Receivable from affiliate			0.2
Inventories (excluding LIFO charges)	(24.0)		(31.0)
Prepaid expenses and other current assets	(2.3)		0.8
Accounts payable	23.6		6.5
Accrued liabilities	(6.8)		(9.4)
Payable to affiliate	8.0		9.6
Long-term assets and liabilities, net	(0.6)		15.2
Net cash provided by operating activities	32.9		38.6
Cash flows from investing activities:
Capital expenditures	(14.1)		(26.7)
Purchase of available for sale securities	(0.3)		(4.4)
Cash payment for acquisition of manufacturing facility and related assets (net of $4.9 of cash received in the acquisition)	(83.2)
Change in restricted cash			1.1
Net cash used in investing activities	(97.6)		(30.0)
Cash flows from financing activities:
Proceeds from issuance of cash convertible senior notes			175.0
Cash paid for financing costs in connection with issuance of cash convertible senior notes			(5.9)
Purchase of call option in connection with issuance of cash convertible senior notes			(31.4)
Proceeds from issuance of warrants			14.3
Repayment of promissory note	(0.6)
Cash paid for financing costs in connection with the revolving credit facility			(2.7)
Retirement of common stock	1.1
Repurchase of common stock			(44.2)
Cash dividend paid to stockholders	(9.4)		(9.6)
Net cash (used in) provided by financing activities	(11.1)		95.5
Net (decrease) increase in cash and cash equivalents during the period	(75.8)		104.1
Cash and cash equivalents at beginning of period	135.6		30.3
Cash and cash equivalents at end of period	$ 59.8		$ 134.4

[1] Prior period amount has been reclassified from Other non-cash changes in assets and liabilities to conform to current period presentation