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Discontinued Operations - Additional Information (Details) - South African Distribution Business and Zambian Operations - Discontinued Operations, Held-for-sale or Disposed of by Sale - USD ($) $ in Millions |  | 3 Months Ended
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Feb. 29, 2016 | Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Percentage of stock sold | 100.00% |
Amount in escrow from potential acquirer | $ 15.9 |
Loss from sale of discontinued operation | $ 0.3 |
Adjustment to prior period gain (loss) on disposal |  | $ 2.5

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