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Schedule II - Consolidated Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Allowance for doubtful accounts and sales allowances |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | $ 23.1 | $ 12.7 | $ 14.5
Additions charged to costs and expenses | 8.4 | 11.9 | 4.3
Deductions | (7.9) | (7.3) | (5.9)
Other | (3.3) | 5.8 | (0.2)
Balance at end of year | 20.3 | 23.1 | 12.7
Reserve for inventory obsolescence |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of year | 30.3 | 38.1 | 37.2
Additions charged to costs and expenses | 6.3 | 6.7 | 5.3
Deductions | (3.2) | (4.5) | (6.3)
Other | 0.0 | (10.0) | 1.9
Balance at end of year | $ 33.4 | $ 30.3 | $ 38.1

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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