James Hardie Industries plc Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Fair Value Measurements - Summary of Company's Financial Assets and Liabilities that were Accounted for at Fair Value on Recurring Basis (Detail)

v2.4.1.9

Fair Value Measurements - Summary of Company's Financial Assets and Liabilities that were Accounted for at Fair Value on Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Assets
Interest rate swap contracts included in Accounts Payable	$ 3.1jhx_InterestRateSwapFairValueDisclosure	$ 0.5jhx_InterestRateSwapFairValueDisclosure
Fair Value Measurements, Recurring [Member]
Assets
Cash and cash equivalents	67.0
Restricted cash and cash equivalents	27.0
Total Assets	94.0
Interest rate swap contracts included in Accounts Payable	3.1
Total Liabilities	3.3
Fair Value Measurements, Recurring [Member] \| Forward contracts [Member]
Assets
Forward contracts included in Other Liabilities	0.2
Level 1 [Member] \| Fair Value Measurements, Recurring [Member]
Assets
Cash and cash equivalents	67.0
Restricted cash and cash equivalents	27.0
Total Assets	94.0
Level 2 [Member] \| Fair Value Measurements, Recurring [Member]
Assets
Interest rate swap contracts included in Accounts Payable	3.1
Total Liabilities	3.3
Level 2 [Member] \| Fair Value Measurements, Recurring [Member] \| Forward contracts [Member]
Assets
Forward contracts included in Other Liabilities	$ 0.2

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- Definition

Restricted cash and cash equivalents fair value disclosure.

+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

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- Definition

Fair value of financial and nonfinancial obligations.

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- Definition

Fair value portion of other liabilities.

+ References

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