Organization and Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of components of accumulated other comprehensive income (loss)

The following summary sets forth the components of accumulated other comprehensive income (loss) contained in the stockholders' equity section of the Consolidated Balance Sheets (amounts in thousands):

	Foreign Currency Translation Gains (Losses)			Defined Benefit Post-retirement Plan Adjustments			Defined Benefit Pension Plans (3)			Ownership Share of Equity Method Investees’ Other Comprehensive Income (Loss)		Net Accumulated Other Comprehensive Income (Loss)
Balance at March 31, 2012	$	18,107		$	1,995		$	(8,082	)	$	—	$	12,020
Fiscal year 2013 activity(1)	(4,569		)	(177		)	420			—		(4,326		)
Balance at March 31, 2013	13,538			1,818			(7,662		)	—		7,694
Fiscal year 2014 activity(2)	9,797			(354		)	276			771		10,490
Balance at March 31, 2014	$	23,335		$	1,464		$	(7,386	)	$	771	$	18,184

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(1) Activity within the defined benefit pension plans is net of a tax benefit of $0.7 million.

(2) Activity within foreign currency translation gains and defined benefit pension plans are net of a tax benefit of $1.9 million and $0.1 million, respectively.

(3) Balance is net of a tax benefit of $2.2 million, $2.1 million, and $2.8 million as of March 31, 2014, March 31, 2013, and March 31, 2012, respectively.

Schedule of assets measured at fair value on a recurring basis

Assets measured at fair value on a recurring basis as of March 31, 2014 and 2013 are as follows (amounts in thousands):

	Carrying Value March 31, 2014		Fair Value March 31, 2014		Fair Value Measurement Using						Carrying Value March 31, 2013		Fair Value March 31, 2013		Fair Value Measurement Using
					Level 1		Level 2(2)		Level 3						Level 1		Level 2(2)		Level 3
Assets:
Money markets(1)	$	714	$	714	$	714	$	—	$	—	$	29,984	$	29,984	$	29,984	$	—	$	—
Total debt	398,589		409,284		371,863		37,421		—		383,500		393,928		369,200		24,728		—
NEC TOKIN options, net (3)	3,600		3,600		—		—		3,600		489		489		—		—		489

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(1) Included in the line item "Cash and cash equivalents" on the Consolidated Balance Sheets.

(2) The valuation approach used to calculate fair value was a discounted cash flow for each respective debt facility.

(3) See Note 8, "Investment in NEC TOKIN," for a description of the NEC TOKIN options. The value of the options is interrelated and depends on the enterprise value of NEC TOKIN Corporation and its EBITDA over the duration of the instruments. Therefore, the options have been valued using option pricing methods in a Monte Carlo simulation.

Summary of NEC TOKIN option valuation activity using significant unobservable inputs (Level 3)

The table below summarizes NEC TOKIN option valuation activity using significant unobservable inputs (Level 3) (amounts in thousand):

March 31, 2013	$	489
Change in value of NEC TOKIN option	3,111
March 31, 2014	$	3,600