Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Condensed Consolidated Statements of Comprehensive (Loss) Income [Abstract]
Net (loss) earnings available to common stockholders	$ (13.7)	$ 65.0	$ (19.6)	$ 124.7
Other comprehensive (loss) income, net of income taxes:
Recognition of deferred pension items, net of taxes of $0.6 for the three months ended June 30, 2012, $0.4 for the three months ended June 30, 2011, $2.1 for the six months ended June 30, 2012 and $0.7 for the six months ended June 30, 2011	2.9	1.0	3.1	2.1
Unrealized losses on derivative instruments, net of taxes of $0.1 for the three months ended June 30, 2011, $0.1 for the six months ended June 30, 2012 and $0.2 for the six months ended June 30, 2011		(0.1)	(0.2)	(0.3)
Foreign currency translation adjustments	(149.5)	26.1	(41.7)	85.1
Comprehensive (loss) income, net of income taxes	$ (160.3)	$ 92.0	$ (58.4)	$ 211.6