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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Allowance for sales returns and doubtful accounts [Roll Forward] |  |  |
Reserves related to notes receivable and tax refund receivables | $ 5.6 | $ 5.6 | $ 5.6
Reserves related to non trade receivables |  | 0.4 |
Allowance for doubtful accounts |  |  |
Allowance for sales returns and doubtful accounts [Roll Forward] |  |  |
Balance at Beginning of Period | 1.1 | 9.1 | 6.3
Charged to Expenses | 0.7 | 1.0 | 3.1
Write-offs | (0.8) | (9.0) | (0.3)
Other | 0.0 | 0.0 | 0.0
Balance at End of Period | 1.0 | 1.1 | 9.1
Allowance for sales returns (4) |  |  |
Allowance for sales returns and doubtful accounts [Roll Forward] |  |  |
Balance at Beginning of Period | 1.4 | 1.4 | 3.2
Charged to Expenses |  | 1.4 | 1.4
Write-offs |  | 0.0 | 0.0
Other |  | (1.4) | (3.2)
Balance at End of Period |  | 1.4 | 1.4
Allowance for inventory returns (5) |  |  |
Allowance for sales returns and doubtful accounts [Roll Forward] |  |  |
Balance at Beginning of Period | (0.5) | (0.6) | (2.4)
Charged to Expenses |  | (0.5) | (0.6)
Write-offs |  | 0.0 | 0.0
Other |  | 0.6 | 2.4
Balance at End of Period |  | (0.5) | (0.6)
Allowance for deferred tax assets |  |  |
Allowance for sales returns and doubtful accounts [Roll Forward] |  |  |
Balance at Beginning of Period | 18.3 | 69.0 | 64.0
Charged to Expenses | (0.3) | (28.6) | 5.3
Write-offs | 0.0 | (2.9) | (1.9)
Other | 0.3 | (19.2) | 1.6
Balance at End of Period | $ 18.3 | $ 18.3 | $ 69.0

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