Segment Information (Identifiable Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Assets	$ 466,314	$ 564,833
Material Handling
Segment Reporting Information [Line Items]
Assets	370,769	370,501
Distribution
Segment Reporting Information [Line Items]
Assets	64,560	57,523
Corporate
Segment Reporting Information [Line Items]
Assets	30,985	19,034
Discontinued operations
Segment Reporting Information [Line Items]
Assets	$ 0	$ 117,775