Stockholders' Equity - Rollforward of Common Stock Outstanding (Details)	3 Months Ended
	Mar. 31, 2013	Mar. 25, 2012
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares outstanding at beginning of the period	56,613,024	32,400,000
Stock issued for employee stock purchase plan, stock options and restricted stock units	100,000	100,000
Shares outstanding at end of the period	56,654,577	32,500,000