Segment Information Schedule of Income Before Income Taxes by Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment Reporting Information [Line Items]
Operating income	$ 9,772	$ 7,259	$ 36,881	$ 28,301
Interest Expense	(1,194)	(1,264)	(3,328)	(3,655)
Income before income taxes	8,578	5,995	33,553	24,646
Material Handling [Member]
Segment Reporting Information [Line Items]
Operating income	12,530	8,870	34,903	27,526
Lawn And Garden [Member]
Segment Reporting Information [Line Items]
Operating income	41	(1,413)	(683)	846
Distribution [Member]
Segment Reporting Information [Line Items]
Operating income	3,343	4,564	11,152	11,651
Engineered Products [Member]
Segment Reporting Information [Line Items]
Operating income	2,921	3,001	12,172	8,381
Corporate [Member]
Segment Reporting Information [Line Items]
Operating income	$ (9,063)	$ (7,763)	$ (20,663)	$ (20,103)