Stockholders' Equity - Rollforward of Common Stock Outstanding (Details)	9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares outstanding at beginning of the period	57,056,892	56,613,024
Stock issued for employee stock purchase plan, stock options and restricted stock units exercised	700,000	400,000
Shares outstanding at end of the period	57,795,095	57,048,005