Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Mar. 31, 2012
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales from continuing operations	$ 350,376	$ 417,863
Gross Profit	51,585	69,802
Gross profit as percentage of sales	14.70%	16.70%
Earnings (Loss) from continuing operations before income taxes	998	17,607
Total Assets	868,496		893,461
Segment Sales [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales from continuing operations	356,157	426,811
Segment Gross Profit [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Gross Profit	51,360	69,613
Gross profit as percentage of sales	14.40%	16.30%
Segment Earnings [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Earnings (Loss) from continuing operations before income taxes	13,106	29,800
Original Equipment - Asia segment [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales from continuing operations	15,791	21,265
Gross Profit	417	3,086
Gross profit as percentage of sales	2.60%	14.50%
Earnings (Loss) from continuing operations before income taxes	(2,262)	813
Total Assets	94,782		102,567
Original Equipment - Europe segment [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales from continuing operations	125,448	166,842
Gross Profit	14,708	25,394
Gross profit as percentage of sales	11.70%	15.20%
Earnings (Loss) from continuing operations before income taxes	(186)	11,607
Total Assets	346,661		370,824
Original Equipment - North America segment [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales from continuing operations	153,626	156,635
Gross Profit	23,602	22,612
Gross profit as percentage of sales	15.40%	14.40%
Earnings (Loss) from continuing operations before income taxes	13,848	10,819
Total Assets	233,779		230,405
Commercial Products [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales from continuing operations	30,141	34,148
Gross Profit	7,897	9,529
Gross profit as percentage of sales	26.20%	27.90%
Earnings (Loss) from continuing operations before income taxes	999	3,371
Total Assets	73,376		68,900
South America [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales from continuing operations	31,151	47,921
Gross Profit	4,736	8,992
Gross profit as percentage of sales	15.20%	18.80%
Earnings (Loss) from continuing operations before income taxes	707	3,190
Total Assets	88,573		96,588
Corporate and Administrative [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales from continuing operations	179	103
Gross Profit	180	169
Gross profit as percentage of sales	0.00%	0.00%
Earnings (Loss) from continuing operations before income taxes	(9,257)	(9,592)
Total Assets	44,175		40,557
Elimination [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales from continuing operations	(5,960)	(9,051)
Gross Profit	45	20
Gross profit as percentage of sales	0.00%	0.00%
Earnings (Loss) from continuing operations before income taxes	22	50
Total Assets	(15,300)		(18,830)
Assets Held-for-sale [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Total Assets	2,450		2,450
Other items Unallocated Amount to Segment [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Earnings (Loss) from continuing operations before income taxes	$ (2,873)	$ (2,651)