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Goodwill and Other Intangibles Narrative (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 5,370	$ 5,804	$ 5,094
Impairment of amortizable intangibles		(357)
Enterprise Resource Planning System [Member]
Finite-Lived Intangible Assets [Line Items]
Capitalized Computer Software, Net	16,919
Finite-lived intangible assets, useful life	5 years
Impairment of amortizable intangibles	642
Internally Developed Software Intangible [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	3,071	3,024
Impairment of amortizable intangibles		$ (357)

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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- Definition

The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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