Foreign Exchange Risk Management (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Foreign Exchange Risk Management [Abstract]
Gross notional amount	$ 238		$ 236
Recognized gains from forward contracts	0.5	14.5
Recognized losses from forward contracts	2.5
Foreign Currency Transaction Gain (Loss), before Tax	$ 2.4	$ (17.5)