Summary of Significant Accounting Policies - Fair Value Textual (Details) (USD $) In Millions, unless otherwise specified			1 Months Ended		0 Months Ended			0 Months Ended			0 Months Ended
	Nov. 02, 2013	Nov. 03, 2012	Jun. 30, 2009 5.0% Senior unsecured notes due July 1, 2014 [Member]	Nov. 03, 2012 5.0% Senior unsecured notes due July 1, 2014 [Member] Nonrecurring [Member] Fair Value, Inputs, Level 1 [Member]	Apr. 04, 2011 3.0% Senior unsecured notes due April 15, 2016 [Member]	Nov. 02, 2013 3.0% Senior unsecured notes due April 15, 2016 [Member] Nonrecurring [Member] Fair Value, Inputs, Level 1 [Member]	Nov. 03, 2012 3.0% Senior unsecured notes due April 15, 2016 [Member] Nonrecurring [Member] Fair Value, Inputs, Level 1 [Member]	Jun. 03, 2013 2.875% Senior unsecured notes due June 1, 2023 [Member]	Aug. 03, 2013 2.875% Senior unsecured notes due June 1, 2023 [Member] Nonrecurring [Member]	Jun. 03, 2013 2.875% Senior unsecured notes due June 1, 2023 [Member] Nonrecurring [Member]	Dec. 22, 2010 Term Loan Facility [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and held to maturity investments	$ 45.6	$ 38.9
Aggregate principal amount of debt			375.0		375.0					500.0	145.0
Interest rate to be paid on long term notes			5.00%		3.00%					2.875%
Maturity date of senior unsecured notes			Jul. 01, 2014		Apr. 15, 2016			Jun. 01, 2023			Dec. 22, 2013
Debt instrument, frequency of periodic payment			semi-annual fixed interest payments due on January 1 and July 1 of each year, commencing		semi-annual fixed interest payments due on April 15 and October 15 of each year, commencing			semi-annual fixed interest payments due on June 1 and December 1 of each year, commencing December 1, 2013
Long-term debt, fair value				$ 402.5		$ 392.8	$ 402.3		$ 466.0