CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowances (in dollars)	$ 9.4	$ 9.3
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	50,000,000	50,000,000
Common stock, shares issued	16,937,504	16,828,576
Common stock, shares outstanding	16,143,514	16,067,736
Treasury stock, shares	793,990	760,840