Benefit Plans - Additional Information (Detail) ¥ in Millions	12 Months Ended
Mar. 31, 2016 JPY (¥)
Foreign Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Estimated future contribution	¥ 1,782
Foreign Pension Plans \| Equity Securities \| Kyocera International Inc
Defined Benefit Plan Disclosure [Line Items]
Allocation of securities for defined benefit plans lower limit	70.00%
Allocation of securities for defined benefit plans upper limit	80.00%
Foreign Pension Plans \| Debt Securities \| Kyocera International Inc
Defined Benefit Plan Disclosure [Line Items]
Allocation of securities for defined benefit plans lower limit	20.00%
Allocation of securities for defined benefit plans upper limit	30.00%
U.S. Defined Benefit \| Equity Securities \| AVX Corporation
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan investments	50.00%
U.S. Defined Benefit \| Pooled Funds Debt Securities \| AVX Corporation
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan investments	50.00%
Europe Defined Benefit \| Equity Securities \| AVX Corporation
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan investments	45.00%
Europe Defined Benefit \| Pooled Funds Debt Securities \| AVX Corporation
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan investments	55.00%
Domestic Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Estimated future contribution	¥ 11,426
Domestic Pension Plans \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of accumulated points balance which may be elected as annuity payment over employees' lifetime	50.00%
Period of time for distribution of benefits from remainder of accumulated points	20 years
Domestic Pension Plans \| Life Insurance Company General Account
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan investments	50.00%
Domestic Pension Plans \| Equity Securities and Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan investments	30.00%
Domestic Pension Plans \| Real Estate Funds
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan investments	15.00%
Domestic Pension Plans \| Cash and Cash Equivalents
Defined Benefit Plan Disclosure [Line Items]
Target allocation of plan investments	5.00%

Employee Option Pension Benefit Payment, Percentage

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Employee Option Pension Benefit Payment, Period

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- Definition

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Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

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Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Section 50
-Paragraph 5
-Subparagraph (c)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

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Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

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