Fair Value Measurements (Tables)

6 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Carrying values and estimated fair values of the Company's long-term obligations and other financial instruments

The carrying values and estimated fair values of the Company’s long-term obligations and other financial instruments are as follows:

	September 30, 2013						March 31, 2013
	Carrying Value			Estimated Fair Value			Carrying Value			Estimated Fair Value
	(In thousands)						(In thousands)
(Liability) Asset:
Senior Secured Notes (a)	$	(675,000	)	$	(488,531	)	$	(675,000	)	$	(580,500	)
Convertible Senior Subordinated Notes (a)	(51,900		)	(8,434		)	(55,750		)	(52,864		)
Foreign Currency Forwards (b)	—			—			25			25
Commodity Swaps (b)	—			—			141			141

(a) Classified as liabilities subject to compromise

(b) These financial instruments are required to be measured at fair value, and are based on inputs as described in the three-tier hierarchy that prioritizes inputs used in measuring fair value as of the reported date:

•	Level 1	–	Observable inputs such as quoted prices in active markets for identical assets and liabilities;
•	Level 2	–	Inputs other than quoted prices in active markets that are observable either directly or indirectly; and
•	Level 3	–	Inputs from valuation techniques in which one or more key value drivers are not observable, and must be based on the reporting entity’s own assumptions.

Financial instruments that are measured at fair value on a recurring basis

The following table represents the Company’s financial instruments that are measured at fair value on a recurring basis, and the basis for that measurement:

	Total Fair Value Measurement		Quoted Price in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(In thousands)
March 31, 2013:
(Liability) Asset:
Foreign currency forwards	$	25	$	—	$	25	$	—
Commodity Swaps	141		—		141		—