Fair Value Measurements (Tables)

12 Months Ended

Mar. 31, 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:

	March 31, 2013						March 31, 2012
	Carrying Value			Estimated Fair Value			Carrying Value			Estimated Fair Value
	(In thousands)
(Liability) Asset:
Senior Secured Notes due 2018	$	(675,000	)	$	(580,500	)	$	(675,000	)	$	(562,781	)
Convertible Senior Subordinated
Notes due 2013	(55,750		)	(52,864		)	(60,000		)	(51,000		)
Interest rate swap (a)	—			—			4,078			4,078
Foreign currency forwards (a)
Asset	25			25			104			104
Liability	—			—			(5,725		)	(5,725		)
Commodity swap (a)
Asset	141			141			320			320
Liability	—			—			(697		)	(697		)

(a) 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 our 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:
Assets:
Foreign currency forward	$	25	$	—	$	25	$	—
Commodity swap	141		—		141		—
March 31, 2012:
Assets:
Interest rate swap	4,078		—		4,078		—
Foreign exchange forward	104				104
Commodity swap	320		—		320		—
Liabilities:
Foreign exchange forward	5,725		—		5,725		—
Commodity swap	697		—		697		—

Summary of investments that comprise the assets of the pension plans

The following table summarizes the investments that comprise the assets of the Company’s pension plans (see Note 9), all of which 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
Cash and cash equivalents	$	11,536	$	11,536	$	—	$	—
Equity funds - U.S.-based companies	87,466		—		87,466		—
Equity funds - international-based companies	113,655		—		113,655		—
Fixed income funds	282,582		—		282,582		—
Other	2,336		—		2,336		—
Total pension assets	$	497,575	$	11,536	$	486,039	$	—
March 31, 2012
Cash and cash equivalents	$	6,067	$	6,067	$	—	$	—
Equity funds - U.S.-based companies	79,800		—		79,800		—
Equity funds - international-based companies	105,157		—		105,157		—
Fixed income funds	277,528		—		277,528		—
Other	3,764		—		3,764		—
Total pension assets	$	472,316	$	6,067	$	466,249	$	—