Other Income, Net (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Other Income and Expenses [Abstract]
Interest income	$ 0.4		$ 0.4		$ 0.2
Unrealized gains on financial derivatives	3.2	[1]	0.8	[1]	4.0	[1]
Realized gains on investments	1.4		0.5		0.1
Distribution from bankruptcy trust	0.6	[2]	0		0
Insurance settlement	0		0.4		0
All other, net	0		0.7		0
Other income, net	$ 5.6		$ 2.8		$ 4.3

[1] See “Derivative Financial Instruments” in Note 1 for a discussion of accounting policy for such instruments.

[2] See Note 13 for discussion of the distribution.