Consolidated Balance Sheets (unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Assets
Trade receivables, allowances	$ 55.4	$ 52.0
Property and equipment, accumulated depreciation	586.0	588.3
Identified intangibles, with finite useful lives, accumulated amortization	183.1	169.8
Investments, Fair Value Disclosure	$ 259.6	$ 247.3
Company shareholders' equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common Stock, Shares, Issued	45,739,243	45,599,418
Common stock, shares outstanding (in shares)	45,739,243
Long-Term Senior Notes [Member]
Line of Credit Facility [Line Items]
Unamortized Debt Issuance Expense	$ 3.5	$ 3.7
Line of Credit [Member]
Line of Credit Facility [Line Items]
Unamortized Debt Issuance Expense	$ 15.0	$ 15.9

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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