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Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Performance obligation | $ 0.0 |  |  | $ 0.0 |  |
Accrued sales returns | 2.5 |  |  | 2.5 |  |
Revenue from contracts with customers | 363.1 |  | $ 313.0 | 718.3 | $ 615.5 | $ 1,265.4
Reportable Geographical Components | United States |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Revenue from contracts with customers | 220.4 |  | 194.6 | 422.4 | 377.2 |
Reportable Geographical Components | Canada |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Revenue from contracts with customers | 10.8 |  | 8.1 | 21.0 | 15.7 |
Reportable Geographical Components | France |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Revenue from contracts with customers | 131.9 |  | $ 110.3 | 274.9 | $ 222.6 |
Service Revenue |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Revenue from contracts with customers |  | $ 0.0 |  |  |  |
MRO Products and Industrial Supplies | Reportable Geographical Components | United States |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Revenue from contracts with customers | 220.4 |  |  | 422.4 |  |
MRO Products and Industrial Supplies | Reportable Geographical Components | Canada |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Revenue from contracts with customers | 10.8 |  |  | 21.0 |  |
Technology Products | France |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Revenue from contracts with customers | 125.9 |  |  | 262.8 |  |
Technology Products | Other Europe |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Revenue from contracts with customers | $ 6.0 |  |  | $ 12.1 |  |
Sales Revenue, Net | Product Concentration Risk | Service Revenue |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |
Service revenue, percentage of revenue |  | 1.00% |  |  |  |

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