Accumulated Other Comprehensive Income and Shareholders' Equity Accumulated Other Comprehensive Income and Shareholders' Equity (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Schedule of Shareholders' Equity [Line Items]
Stock repurchase program, remaining authorized repurchase amount			$ 107.1
Cash dividends per common share	$ 0.24	$ 0.24	$ 0.48	$ 0.47
Common Stock [Member]
Schedule of Shareholders' Equity [Line Items]
Repurchased common stock, shares			223,100
Repurchased common stock, value			$ 7.7