Fair Value Disclosures (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Assets, Fair Value Disclosure	$ 20.2	$ 82.9
Estimate Of Fair Value, Fair Value Disclosure [Member]
Foreign currency forward contracts (asset position)	4.1	4.5
Foreign currency forward contracts (liability position)	43.5	41.0
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Foreign currency forward contracts (asset position)	0	0
Foreign currency forward contracts (liability position)	0	0
Significant Other Observable Inputs (Level 2) [Member]
Foreign currency forward contracts (asset position)	4.1	4.5
Foreign currency forward contracts (liability position)	43.5	41.0
Significant Unobservable Inputs (Level 3) [Member]
Foreign currency forward contracts (asset position)	0	0
Foreign currency forward contracts (liability position)	0	0
Interest-bearing Deposits [Member]
Assets, Fair Value Disclosure	6.8	68.7
Interest-bearing Deposits [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets, Fair Value Disclosure	0	0
Interest-bearing Deposits [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets, Fair Value Disclosure	6.8	68.7
Interest-bearing Deposits [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets, Fair Value Disclosure	0	0
Equity Funds [Member]
Assets, Fair Value Disclosure	10.6	11.0
Equity Funds [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets, Fair Value Disclosure	10.6	11.0
Equity Funds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets, Fair Value Disclosure	0	0
Equity Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets, Fair Value Disclosure	0	0
Common Stock [Member]
Assets, Fair Value Disclosure	2.3	2.3
Common Stock [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets, Fair Value Disclosure	2.3	2.3
Common Stock [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets, Fair Value Disclosure	0	0
Common Stock [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets, Fair Value Disclosure	0	0
Money Market Funds [Member]
Assets, Fair Value Disclosure	0.6	0.9
Money Market Funds [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets, Fair Value Disclosure	0.6	0.9
Money Market Funds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets, Fair Value Disclosure	0	0
Money Market Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets, Fair Value Disclosure	0	0
Investment Securities Class [Domain]
Assets, Fair Value Disclosure	13.5	14.2
Investment Securities Class [Domain] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets, Fair Value Disclosure	13.5	14.2
Investment Securities Class [Domain] | Significant Other Observable Inputs (Level 2) [Member]
Assets, Fair Value Disclosure	0	0
Investment Securities Class [Domain] | Significant Unobservable Inputs (Level 3) [Member]
Assets, Fair Value Disclosure	$ 0	$ 0