Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 27, 2015	Dec. 28, 2014
Statement of Financial Position [Abstract]
Accumulated depreciation and amortization	$ 448.4	$ 417.5
Preferred stock, par value (in USD per share)	$ 0.01	$ 0.01
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	125,000,000	125,000,000
Common stock, shares outstanding (in shares)	35,438,456	36,655,584
Common stock, shares, issued (in shares)	37,697,865	37,697,865
Treasury stock (in shares)	2,259,409	1,042,281