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Other Income (Expense), net (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Other income (expense), net
Investment income (loss) related to a deferred compensation plan	$ 1,343	$ (364)	$ 1,055
Impairment of investment	0	0	(2,298)
Currency exchange gain (loss), net	169	2,110	(1,175)
Other	165	(122)	120
Other income (expense), net	$ 1,677	$ 1,624	$ (2,298)

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- Definition

The amount of investment income (loss) related to deferred compensation plan during the accounting period.

+ References

No definition available.

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- Definition

Represents the net amount of all other income and expenses recognized by the entity in the period not otherwise specified in the income statement.

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- Definition

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895

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-Publisher FASB
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-SubTopic 20
-Section 45
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-URI http://asc.fasb.org/extlink&oid=64836518&loc=d3e30700-110894

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- Definition

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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-Name Accounting Standards Codification
-Topic 320
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-Section 35
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- Definition

Amount of income (expense) related to nonoperating activities, classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
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