Consolidated Balance Sheet Parentheticals - USD ($) shares in Millions, $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Accounts Receivable [Abstract]
Accounts Receivable, Allowance	$ 1.0	$ 1.1
Common Stock [Abstract]
Common Stock, Par Value Per Share	$ 0.00	$ 0.00
Common Stock, Shares Authorized	80.0	80.0
Common Stock, Shares Outstanding	49.1	45.9