XML 55 R48.htm IDEA: XBRL DOCUMENT
v3.25.3

Derivative Financial Instruments - Additional Information (Details) € in Millions, CHE in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 30, 2020 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) Item | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) | Nov. 30, 2020 EUR (€) | Nov. 30, 2020 CHE | Dec. 31, 2017
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Foreign currency unrealized gains expected to be reclassified into earnings over next twelve months |  | $ 12.3 |  | $ 12.3 |  |  |  |  |
Foreign currency unrealized gains expected to be reclassified into earnings over next twelve months, taxes |  | $ 3.2 |  | 3.2 |  |  |  |  |
3.95% senior unsecured notes due 2027 |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  | 3.95%
Proceeds from issue of senior notes in settlement of derivatives |  |  |  | $ 1.4 |  |  |  |  |
Percentage of Changes in Issuance of Senior Unsecured Notes |  | 3.95% |  | 3.95% |  |  |  |  |
3.95% senior unsecured notes due 2027 | Maximum |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate |  |  |  |  |  |  |  |  | 5.95%
Senior Unsecured Notes Five Point Eight Hundred Seventy Five Percent [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from issue of senior notes in settlement of derivatives |  |  |  | $ 3.6 |  |  |  |  |
Percentage of Changes in Issuance of Senior Unsecured Notes |  | 5.875% |  | 5.875% |  |  |  |  |
Treasury Lock | 3.95% senior unsecured notes due 2027 |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Percentage of reduction in effective interest rate on senior notes |  |  |  | 0.25% |  |  |  |  |
Percentage of Changes in Issuance of Senior Unsecured Notes |  | 3.95% |  | 3.95% |  |  |  |  |
Treasury Lock | Senior Unsecured Notes Five Point Eight Hundred Seventy Five Percent [Member] |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Percentage of reduction in effective interest rate on senior notes |  |  |  | 0.10% |  |  |  |  |
Proceeds from issue of senior notes in settlement of derivatives |  |  |  | $ 3.4 |  |  |  |  |
Percentage of Changes in Issuance of Senior Unsecured Notes |  | 5.875% |  | 5.875% |  |  |  |  |
Treasury Lock | Interest Lock Agreement | 3.95% senior unsecured notes due 2027 |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Percentage of reduction in effective interest rate on senior notes |  |  |  | 0.25% |  |  |  |  |
Cross Currency And Interest Rate Swap | Designated as Hedging Instrument | Cash Flow Hedging |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Floating rate obligation | $ 319.9 |  |  |  |  |  | € 270 | CHE 270 |
Derivative amortization period | 5 years |  |  |  |  |  |  |  |
Derivative fixed interest rate (as a percent) | 0.30% |  |  |  |  |  | 0.30% | 0.30% |
Derivative, additional fixed interest rate | 1.115% |  |  |  |  |  | 1.115% | 1.115% |
Derivative swaps, frequency of periodic payment | semi-annually |  |  |  |  |  |  |  |
Derivative swaps, principal amortize at Nov. 15, 2024 | $ 59.2 |  |  |  |  |  |  | CHE 50 |
Derivative swaps, principal amortize at Nov. 15, 2025 | $ 82.9 |  |  |  |  |  |  | CHE 70 |
Foreign Currency Forward Exchange Contracts |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Notional amount |  | $ 400.8 |  | $ 400.8 |  | $ 386.4 |  |  |
Number of credit contingency features | Item |  |  |  | 0 |  |  |  |  |
Foreign Currency Forward Exchange Contracts | Cash Flow Hedging |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Gains (losses) in other comprehensive income, effective portion |  | 5.6 | $ 13.4 | $ 34.3 | $ 4.3 |  |  |  |
Net gain (loss) recognized in gross margin |  | 4.5 | 0.2 | 6.3 | 2.2 |  |  |  |
Foreign Currency Forward Exchange Contracts | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Foreign exchange net gains (losses) on derivative contracts not designated as hedges |  | 0.9 | $ 1.2 | 1.2 | $ 3.2 |  |  |  |
Commodity Swap Agreements |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Notional amount |  | $ 16.3 |  | $ 16.3 |  |  |  |  |

X
- Definition Derivative additional fixed interest rate. + References No definition available. + Details
Name: | hxl_DerivativeAdditionalFixedInterestRate
Namespace Prefix: | hxl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of credit contingency features in derivatives. + References No definition available. + Details
Name: | hxl_DerivativeCreditRiskRelatedNumberOfContingentFeatures
Namespace Prefix: | hxl_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Derivative instrument principal amortization in year five. + References No definition available. + Details
Name: | hxl_DerivativeInstrumentPrincipalAmortizationInYearFive
Namespace Prefix: | hxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Derivative instrument principal amortization in year four. + References No definition available. + Details
Name: | hxl_DerivativeInstrumentPrincipalAmortizationInYearFour
Namespace Prefix: | hxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Derivative instruments frequency of periodic payment. + References No definition available. + Details
Name: | hxl_DerivativeInstrumentsFrequencyOfPeriodicPayment
Namespace Prefix: | hxl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The estimated tax amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References No definition available. + Details
Name: | hxl_ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12MonthsTaxAmount
Namespace Prefix: | hxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Other Comprehensive And Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax + References No definition available. + Details
Name: | hxl_OtherComprehensiveAndIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
Namespace Prefix: | hxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage of Changes in Issuance of Senior Unsecured Notes + References No definition available. + Details
Name: | hxl_PercentageOfChangesInIssuanceOfSeniorUnsecuredNotes
Namespace Prefix: | hxl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of reduction in interest rate on senior notes. + References No definition available. + Details
Name: | hxl_PercentageOfReductionInInterestRateOnSeniorNotes
Namespace Prefix: | hxl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds from issue of senior notes in settlement of derivatives. + References No definition available. + Details
Name: | hxl_ProceedsFromIssueOfSeniorNotesInSettlementOfDerivatives
Namespace Prefix: | hxl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of hedged item in hedging relationship. Excludes hedged asset or liability. + References No definition available. + Details
Name: | us-gaap_DerivativeAmountOfHedgedItem
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476148/220-40-50-21 + Details
Name: | us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 20 -Name Accounting Standards Codification -Section 25 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480682/815-20-25-6A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 181 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-181 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DerivativeTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480870/815-30-50-1 + Details
Name: | us-gaap_ForeignCurrencyCashFlowHedgeGainLossToBeReclassifiedDuringNext12Months
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 182 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480401/815-10-55-182 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-15 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hxl_SeniorUnsecuredNotesThreePointNineFivePercentDueTwoThousandTwentySevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=hxl_SeniorUnsecuredNotesFivePointEightHundredSeventyFivePercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_TreasuryLockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_InterestRateLockCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=hxl_CrossCurrencyAndInterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeForwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |