Condensed Consolidated Balance Sheet (Parenthetical) - $ / shares	Mar. 27, 2016	Dec. 27, 2015
Consolidated Balance Sheets
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares issued	43,876,000	43,731,000
Treasury stock, shares	6,540,000	5,308,000