Discontinued Operations - Summarized Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations, net of tax	$ 0	$ (1,129)
Discontinued Operations, Held-for-sale or Disposed of by Sale | South African Distribution Business and Zambian Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0	5,261
Other loss, net	0	(288)
Cost of products sold	0	4,819
Selling, general and administrative	0	937
Currency exchange losses, net	0	18
Loss from discontinued operations before income taxes	0	(801)
Provision for income taxes	0	328
Loss from discontinued operations, net of tax	$ 0	$ (1,129)