XML 64 R61.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Long-Term Debt - Schedule of Senior Notes Redemption Prices Expressed as Percentages of Principal Amount (Detail) (Senior Unsecured Notes Due 15 February 2023 [Member]) | 12 Months Ended
--- | ---
Mar. 31, 2015
Debt Instrument, Redemption [Line Items] |
Redemption price, percentage | 101.00%us-gaap_DebtInstrumentRedemptionPricePercentage
2018 [Member] |
Debt Instrument, Redemption [Line Items] |
Redemption price, percentage | 104.406%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentAxis = jhx_SeniorUnsecuredNotesDueFifteenFebruaryTwoZeroTwoThreeMember / us-gaap_DebtInstrumentRedemptionPeriodAxis = us-gaap_DebtInstrumentRedemptionPeriodOneMember
2019 [Member] |
Debt Instrument, Redemption [Line Items] |
Redemption price, percentage | 102.938%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentAxis = jhx_SeniorUnsecuredNotesDueFifteenFebruaryTwoZeroTwoThreeMember / us-gaap_DebtInstrumentRedemptionPeriodAxis = us-gaap_DebtInstrumentRedemptionPeriodTwoMember
2020 [Member] |
Debt Instrument, Redemption [Line Items] |
Redemption price, percentage | 101.469%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentAxis = jhx_SeniorUnsecuredNotesDueFifteenFebruaryTwoZeroTwoThreeMember / us-gaap_DebtInstrumentRedemptionPeriodAxis = us-gaap_DebtInstrumentRedemptionPeriodThreeMember
2021 and thereafter [Member] |
Debt Instrument, Redemption [Line Items] |
Redemption price, percentage | 100.00%us-gaap_DebtInstrumentRedemptionPricePercentage / us-gaap_DebtInstrumentAxis = jhx_SeniorUnsecuredNotesDueFifteenFebruaryTwoZeroTwoThreeMember / us-gaap_DebtInstrumentRedemptionPeriodAxis = jhx_DebtInstrumentRedemptionPeriodFourAndThereafterMember

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration