Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Dec. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	135,000	135,000
Common stock, issued (in shares)	106,521	105,818
Common stock, outstanding (in shares)	76,862	84,707
Treasury stock, at cost (in shares)	29,659	21,111