Goodwill and Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Mar. 31, 2012
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 29,933
Fluctuations in foreign currency	(1,496)
Goodwill, Ending Balance	28,437
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Value	9,306		9,466
Accumulated Amortization	(4,637)		(4,582)
Intangible Assets, Net	4,669		4,884
Unamortized intangible assets [Abstract]
Gross carrying value	10,143		10,387
Accumulated Amortization	(4,637)		(4,582)
Net Intangible Assets	5,506		5,805
Amortization Expense	150	160
Amortization expense, fiscal year maturity [Abstract]
Remainder of 2013	447
2014	596
2015	596
2016	596
2017	596
2018 & Beyond	1,838
Trade Names [Member]
Unamortized intangible assets [Abstract]
Gross carrying value	837		921
Accumulated Amortization	0		0
Net Intangible Assets	837		921
Trademarks [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Value	8,940		9,064
Accumulated Amortization	(4,271)		(4,180)
Intangible Assets, Net	4,669		4,884
Other Intangible Assets [Member]
Finite-Lived and Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Value	366		402
Accumulated Amortization	(366)		(402)
Intangible Assets, Net	0		0
Original Equipment - Asia segment [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	520
Fluctuations in foreign currency	0
Goodwill, Ending Balance	520
South America [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	13,498
Fluctuations in foreign currency	(1,219)
Goodwill, Ending Balance	12,279
Commercial Products [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	15,915
Fluctuations in foreign currency	(277)
Goodwill, Ending Balance	$ 15,638

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Gross carrying amount of assets (excluding financial assets) that lack physical substance, excluding goodwill, having a projected indefinite period of benefit.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized in the remainder of the fiscal year following the latest fiscal year ended for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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