Background And Basis Of Presentation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended			12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Apr. 30, 2013 Number of Employees, Geographic Area [Member]	Mar. 31, 2014 Number of Employees, Total [Member]	Dec. 31, 2013 Australian Dollars [Member]	Dec. 31, 2013 United States of America, Dollars [Member]
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	$ 0.7	$ (8.0)
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	0.5	(5.1)
Business Acquisition, Transaction Costs	14.7
Maximum period of agreement for earning transition services revenues for services provided to the buyer (in months)	24
Number of employees added in business acquisition				1,000	125,000
Number of Countries in which Entity Operates	31
Payments to Acquire Businesses, Net of Cash Acquired	$ 804.5	$ 0	$ 15.0			$ 20.0	$ 20.0