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Fair Value Measurements - Additional Information (Details) | 6 Months Ended
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Jun. 30, 2018 USD ($) item Liability
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Number of counterparties, which experienced significant downgrades | item | 0
Level 1 |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Assets | $ 0
Liabilities | $ 0
Level 3 |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Fair value measurement with unobservable inputs reconciliation, number of liabilities | Liability | 1
Acquisition of fair value liabilities, contingent consideration | $ 3,000,000
Level 2 | Fair Value Measured on Recurring Basis |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Derivative assets | 6,700,000
Derivative liabilities | 10,600,000
Level 2 | Fair Value Measured on Recurring Basis | Interest Rate Swap Agreements |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Derivative assets | $ 900,000
Derivative Asset, Measurement Input [Extensible List] | hxl:MeasurementInputLIBORYieldCurvesMember
Derivative liabilities | $ 400,000
Derivative Liability, Measurement Input [Extensible List] | hxl:MeasurementInputLIBORYieldCurvesMember
Level 2 | Fair Value Measured on Recurring Basis | Foreign Currency Forward Exchange Contracts |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Derivative assets | $ 5,800,000
Derivative Asset, Measurement Input [Extensible List] | hxl:MeasurementInputLIBORYieldCurvesMember
Derivative liabilities | $ 10,200,000
Derivative Liability, Measurement Input [Extensible List] | us-gaap:MeasurementInputQuotedPriceMember

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- Definition Represents the number of counterparties that are highly rated financial institutions, which experienced significant downgrades. + References No definition available. + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Indicates measurement input for derivative asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 + Details
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