Consolidated Statements of Stockholders' Equity (USD $) In Millions	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Comprehensive Loss [Member]
Balance, Beginning Value, Shares at Dec. 31, 2011		149.8	(12.7)
Balance, Beginning Value at Dec. 31, 2011	$ 1,000.9	$ 149.8	$ (274.4)	$ 549.9	$ 681.8	$ (106.2)
Net income (loss)	(48.6)				(48.6)
Issuance of shares for employee stock plans and other purposes and other transactions	(1.8)		13.2	(15.0)
Issuance of shares for employee stock plans and other purposes and other transactions			0.4
Stock Issued During Period, Shares, Conversion of Convertible Securities		0.1
Proceeds from Warrant Exercises		0.1
Adjustments to Additional Paid in Capital, Warrant Issued	0.2			0.1
Compensation expense associated with stock awards	4.5			4.5
Other comprehensive income	0.8					0.8
Balance, Ending Value, Shares at Jun. 30, 2012		149.9	(12.3)
Balance, Ending Value at Jun. 30, 2012	$ 956.0	$ 149.9	$ (261.2)	$ 539.5	$ 633.2	$ (105.4)