v3.7.0.1

Redeemable Noncontrolling Interests (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Temporary Equity, Number of Shares, Redemption Value and Other Disclosures [Abstract]
Redeemable noncontrolling interest, beginning balance	$ 5,997	$ 6,956	$ 8,047
Redeemable noncontrolling interests recognized in acquisitions of Powertech Batteries and Energy Leader Batteries India Limited			191
Net losses attributable to redeemable noncontrolling interests	(2,021)	(4,272)
Loan to equity conversion by redeemable noncontrolling interests	(4,035)	4,272	(292)
Adjustment on buyout of noncontrolling interests		109
Foreign currency translation adjustment	59	(1,068)	(990)
Redeemable noncontrolling interest, ending balance	$ 0	$ 5,997	$ 6,956

X

- Definition

Adjustment on buyout of noncontrolling interests

+ References

No definition available.

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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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X

- Definition

Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.27(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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X

- Definition

Adjustments to temporary equity resulting from foreign currency translation adjustments.

+ References

No definition available.

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X

- Definition

The portion of net income or loss attributable to temporary equity interest.

+ References

No definition available.

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- Definition

Amount of increase (decrease) in temporary equity from changes classified as other.

+ References

No definition available.

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- Definition

Value of new stock classified as temporary equity issued during the period.

+ References

No definition available.

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