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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Assets |  |
Trade receivables, allowances | $ 68.1 | $ 52.0
Property and equipment, accumulated depreciation | 660.7 | 588.3
Finite-Lived Intangible Assets, Accumulated Amortization | 214.8 | 169.8
Investments, Fair Value Disclosure | $ 328.6 | $ 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 (in shares) | 51,549,654 | 45,599,418
Common stock, shares outstanding (in shares) | 51,549,654 | 45,599,418
Line of Credit [Member] |  |
Liabilities and Equity |  |
Unamortized Debt Issuance Expense | $ 12.3 | $ 15.9
Long-Term Senior Notes [Member] |  |
Liabilities and Equity |  |
Unamortized Debt Issuance Expense | $ 3.1 | $ 3.7

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