Segment Information Schedule of Income Before Income Taxes by Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Segment Reporting Information [Line Items]
Operating income	$ 9,992	$ 8,673	$ 27,109	$ 21,042
Interest Expense	(1,054)	(1,153)	(2,135)	(2,391)
Income before income taxes	8,938	7,520	24,974	18,651
Material Handling [Member]
Segment Reporting Information [Line Items]
Operating income	9,223	8,396	22,373	18,657
Lawn And Garden [Member]
Segment Reporting Information [Line Items]
Operating income	(1,942)	(1,619)	(724)	2,259
Distribution [Member]
Segment Reporting Information [Line Items]
Operating income	4,298	4,014	7,809	7,087
Engineered Products [Member]
Segment Reporting Information [Line Items]
Operating income	4,660	2,591	9,251	5,380
Corporate [Member]
Segment Reporting Information [Line Items]
Operating income	$ (6,247)	$ (4,709)	$ (11,600)	$ (12,341)