Stockholders Equity and Share-Based Compensation Dividend Declaration (Details 1) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				9 Months Ended
	Sep. 27, 2015	Jun. 28, 2015	Mar. 29, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Dividends Payable
Declaration Date	Jul. 20, 2015	Apr. 14, 2015	Jan. 20, 2015
Cash dividends declared per share	$ 0.3	$ 0.3	$ 0.3	$ 0.3	$ 0.9	$ 0.75
Record Date	Aug. 03, 2015	May 04, 2015	Mar. 02, 2015
Total Amount Declared	$ 61.3	$ 64.0	$ 65.9
Payment Date	Aug. 25, 2015	May 26, 2015	Mar. 23, 2015