Segment Information (Identifiable Assets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Assets	$ 629,945	$ 469,457
Material Handling
Segment Reporting Information [Line Items]
Assets	408,060	240,897
Distribution
Segment Reporting Information [Line Items]
Assets	70,176	63,340
Corporate
Segment Reporting Information [Line Items]
Assets	10,894	4,652
Discontinued operations
Segment Reporting Information [Line Items]
Assets	$ 140,815	$ 160,568