Goodwill and Other Intangibles (Tables)

12 Months Ended

Mar. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Asset Rollforward

Goodwill and Intangible Asset Rollforward:

			Amortizable Intangibles
	Goodwill (1)		Customer Relationship Intangible			Production and Supply Contract Intangibles			Internally Developed Software Intangible			Total
Weighted average remaining useful life in years as of March 31, 2016			13			4.75			—
March 31, 2014 balance:
Gross carrying amount	$	2,794	$	33,700		$	14,893		$	17,804		$	69,191
Accumulated amortization	—		(14,954		)	(4,752		)	(14,760		)	(34,466		)
Net March 31, 2014 balance	2,794		18,746			10,141			3,044			34,725
Additions	—		—			—			698			698
Amortization expense	—		(1,685		)	(1,034		)	(813		)	(3,532		)
Net March 31, 2015 balance	2,794		17,061			9,107			2,929			31,891
Additions (2)	13,669		24,830			—			—			38,499
Amortization expense	—		(1,685		)	(825		)	(846		)	(3,356		)
Net March 31, 2016 balance	$	16,463	$	40,206		$	8,282		$	2,083		$	67,034

(1) Goodwill of $2,794 relates to the North America segment and $13,669 relates to the Other Regions segment.

(2) Additions relate to the reconsolidation of MTC. See Note 22 "Reconsolidation of MTC" to the "Notes to Consolidated Financial Statements" for further information.

Estimated Intangible Asset Amortization Expense

The following table summarizes the estimated intangible asset amortization expense for the next five years and beyond:

For Fiscal Years Ended	Customer Relationship Intangible		Production and Supply Contract Intangible		Internally     Developed     Software    Intangible *		Total
2017	$	3,340	$	1,282	$	848	$	5,470
2018	3,340		1,405		620		5,365
2019	3,340		1,405		367		5,112
2020	3,340		1,397		248		4,985
2021	3,340		1,397		—		4,737
Later	23,506		1,396		—		24,902
	$	40,206	$	8,282	$	2,083	$	50,571

*  Estimated amortization expense for the internally developed software is based on costs accumulated as of March 31, 2016.
    These estimates will change as new costs are incurred and until the software is placed into service in all locations.