FINANCIAL INSTRUMENTS: (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Mar. 31, 2014
Assets:
Other current assets	$ 50,163us-gaap_OtherAssetsCurrent	$ 54,484us-gaap_OtherAssetsCurrent
Fair value measurements on recurring basis \| Level 1
Assets:
Other current assets	14,174
Total assets	14,174
Fair value measurements on recurring basis \| Level 2
Liabilities:
Other accrued expenses	29
Total liabilities	29
Fair value measurements on recurring basis \| Total
Assets:
Other current assets	14,174
Total assets	14,174
Liabilities:
Other accrued expenses	29
Total liabilities	$ 29

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 2

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Fair value of financial and nonfinancial obligations.

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- Definition

The noncurrent portion (due beyond one year or one operating cycle) of other accrued expenses (expenses incurred at the end of the reporting period but not yet paid) not otherwise defined in the taxonomy.

+ 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 210.5-02.24)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Regulation S-X (SX)

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Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer).

+ 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 210.5-02.8)

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