UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEET (Parenthetical) - USD ($) $ in Millions	Jun. 27, 2015	Dec. 31, 2014
Current Assets:
Allowance for doubtful accounts	$ 3.1	$ 3.7
Other Assets:
Accumulated amortization of intangible assets	$ 243.1	$ 210.9
Stockholders' Equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	90,000,000	90,000,000
Common stock, shares issued	17,042,020	16,986,493
Treasury stock, shares	775,616	732,340