Discontinued Operations (Components of Assets and Liabilities) (Details) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Accounts receivable, net	$ 33,893	$ 37,198
Inventories, net	25,206	21,183
Prepaid and other current assets	669	888
Assets of discontinued operations - current	59,768	59,269
Property, plant and equipment, net	6,850	8,767
Goodwill and other long-term assets	0	6,977
Assets of discontinued operations - long-term	6,850	15,744
Accounts payable	9,748	9,866
Other current liabilities	14,501	16,774
Liabilities of discontinued operations - current	24,249	26,640
Other liabilities	151	124
Liabilities of discontinued operations - long-term	151	124
Net assets of discontinued operations	$ 42,218	$ 48,249