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Discontinued Operations - Discontinued Operations Assets and Liabilities (Details) - South African Distribution Business and Zambian Operations - Discontinued Operations, Held-for-sale or Disposed of by Sale - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Trade receivables, less allowance for doubtful accounts $ 4,832 $ 6,638
Inventories 8,499 11,829
Net property 449 342
Other assets 791 2,022
Total assets 14,571 20,831
Accounts payable 2,745 5,263
Accrued and other liabilities 748 991
Total liabilities 3,493 6,254
Net assets $ 11,078 $ 14,577