Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income (loss)	$ 31.3	$ (65.6)	$ (17.3)	$ (123.9)
Other comprehensive income (loss)
Foreign currency translation adjustments	2.9	(15.6)	1.7	(11.3)
Unrealized gain (loss) on derivative instruments	(0.5)	(0.1)	(0.7)	0.5
Unrealized gain (loss) on marketable securities, net of reversals	0.5	(9.0)	0.7	(6.4)
Defined benefit pension plans	0.7	2.3	2.7	3.0
Other comprehensive income (loss), net of tax	3.6	(22.4)	4.4	(14.2)
Net income attributable to noncontrolling interest	0	0	0	(0.2)
Foreign currency translation adjustments attributed to non-controlling interest	0	0	0	(1.0)
Comprehensive income (loss)	$ 34.9	$ (88.0)	$ (12.9)	$ (139.3)