Credit Facilities (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended
	Dec. 07, 2012	Jan. 31, 2013
Line of Credit Facility [Line Items]
Short-term borrowings, weighted average interest rate		1.10%
Multi-Currency Revolving Facility [Member]
Line of Credit Facility [Line Items]
Credit facility expiration period	5 years
Credit facilities, maximum borrowing capacity	$ 250.0
Credit facilities, amount outstanding		$ 55.0