Segment Information (Identifiable Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Assets	$ 445,382	$ 564,833
Material Handling
Segment Reporting Information [Line Items]
Assets	343,300	370,501
Distribution
Segment Reporting Information [Line Items]
Assets	66,033	57,523
Corporate
Segment Reporting Information [Line Items]
Assets	36,049	19,034
Discontinued operations
Segment Reporting Information [Line Items]
Assets	$ 0	$ 117,775