Equity Method Investments, Number of Investments

No definition available.

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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Equity Method Investments - TOKIN's Joint Ventures (Details) $ in Thousands	Mar. 31, 2018 USD ($)	Apr. 19, 2017 investment	Mar. 31, 2017 USD ($)
Schedule of Equity Method Investments [Line Items]
Equity method investments	$ 12,016		$ 63,416
Nippon Yttrium Co., Ltd (NYC)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	30.00%
Equity method investments	$ 8,148		0
NT Sales Co., Ltd (NTS)
Schedule of Equity Method Investments [Line Items]
Ownership percentage	33.00%
Equity method investments	$ 998		$ 0
KEC \| TOKIN
Schedule of Equity Method Investments [Line Items]
Interest acquired		66.00%
Ownership percentage		100.00%
TOKIN
Schedule of Equity Method Investments [Line Items]
Number of investments \| investment		2
TOKIN \| NT Sales Co., Ltd (NTS) \| Disposed of by Sale
Schedule of Equity Method Investments [Line Items]
Ownership percentage	77.00%