Condensed Consolidated Balance Sheets Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 27, 2016	Dec. 29, 2015
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized	180,000,000	180,000,000
Common stock, shares, issued	30,292,166	30,138,672
Common stock, shares, outstanding	27,868,295	27,714,801
Treasury stock, shares	2,423,871	2,423,871