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Accounts Receivable (Tables) | 12 Months Ended
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Dec. 31, 2017
Accounts Receivable, Net [Abstract] |
Schedule of allowance for bad debt | The following table sets forth activities in our allowance for bad debt (in millions):
| 2017 |  | 2016 |  | 2015
Balance as of beginning of period | $ | 24.9 |  |  | $ | 25.0 |  |  | $ | 25.7 |
Charges to provision for bad debt | 9.3 |  |  | 15.4 |  |  | 7.5 |
Write-off of uncollectible accounts receivable | (8.7 | ) |  | (15.9 | ) |  | (8.3 | )
Recoveries of bad debt | 2.0 |  |  | 0.3 |  |  | 0.5 |
Translation Adjustments | 0.3 |  |  | 0.2 |  |  | (0.4 | )
Balance as of end of period | $ | 27.8 |  |  | $ | 24.9 |  |  | $ | 25.0 |

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- Definition Tabular disclosure of the activity in the allowance for doubtful accounts. + References No definition available. + Details
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- References No definition available. + Details
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