Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

No definition available.

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Segment Information Schedule of Net Sales by Segment (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) Segments	Jun. 30, 2014 USD ($)
Segment Reporting [Abstract]
Number of segments \| Segments			2
Segment Reporting Information [Line Items]
Net Sales	$ 164,335	$ 152,784	$ 320,683	$ 303,269
Material Handling
Segment Reporting Information [Line Items]
Net Sales	115,774	103,046	228,055	209,723
Distribution
Segment Reporting Information [Line Items]
Net Sales	48,592	49,789	92,697	93,672
Intra-segment Elimination [Member]
Segment Reporting Information [Line Items]
Net Sales	$ (31)	$ (51)	$ (69)	$ (126)