Employee Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Benefit Plans (Textual) [Abstract]
Expenses related to savings plan	$ 39.3	$ 32.8	$ 24.8
Percentage of minimum investment return	1.50%	1.50%	2.00%
Unfunded net pension	22.6	20.5
Employee Benefit Plan obligations	38.1	28.1
Pension Expense	10.9	3.8	3.6
Savings plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum Qualifying Age For Employee Benefit Plan	21 years
Deferred compensation plan [Member]
Employee Benefit Plans (Textual) [Abstract]
Deferred compensation related to Employee Benefit Plan	84.7	66.9
German plan [Member]
Employee Benefit Plans (Textual) [Abstract]
Employee Benefit Plan obligations	20.0	15.9
Periodic pension cost	$ 3.3	$ 1.9	$ 1.8