Goodwill and Other Intangibles (Tables)

12 Months Ended

Mar. 31, 2012

Goodwill and Other Intangibles [Abstract]

Goodwill and Intangible Asset Rollforward

Goodwill and Intangible Asset Rollforward:

	Unamortizable Goodwill		Amortizable Intangibles
	Other Regions Segment		Customer Relationship Intangible			Production and Supply Contract Intangibles			Internally Developed Software Intangible			Total
Weighted average remaining useful life in years as of March 31, 2012			13			4			2
March 31, 2010 balance:
Gross carrying amount	$	2,794	$	33,700		$	7,893		$	14,459		$	58,846
Accumulated amortization	—		(8,214		)	(1,452		)	(4,189		)	(13,855		)
Net March 31, 2010 balance	2,794		25,486			6,441			10,270			44,991
Additions	—		—			—			1,308			1,308
Amortization expense	—		(1,685		)	(496		)	(2,913		)	(5,094		)
Net March 31, 2011 balance	2,794		23,801			5,945			8,665			41,205
Additions	—		—			—			821			821
Impairment / other	—		—			—			(357		)	(357		)
Amortization expense	—		(1,685		)	(1,095		)	(3,024		)	(5,804		)
Net March 31, 2012 balance	$	2,794	$	22,116		$	4,850		$	6,105		$	35,865

Estimated Intangible Asset Amortization Expense

Estimated Intangible Asset Amortization Expense:

For Fiscal Years Ended	Customer Relationship Intangible		Production and Supply Contract Intangible		Internally     Developed     Software    Intangible *		Total
2013	$	1,685	$	1,251	$	3,189	$	6,125
2014	1,685		1,251		1,750		4,686
2015	1,685		1,173		534		3,392
2016	1,685		1,175		404		3,264
2017	1,685		—		228		1,913
Later	13,691		—		—		13,691
	$	22,116	$	4,850	$	6,105	$	33,071

*  Estimated amortization expense for the internally developed software is based on costs accumulated as of March 31, 2012.
    These estimates will change as new costs are incurred and until the software is placed into service in all locations.