Ecovyst, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Background and Basis of Presentation (Policies)
Notes Tables
Notes Details

Financial Instruments Narrative (Details)

v3.22.2

Financial Instruments Narrative (Details) € in Thousands, $ in Thousands					6 Months Ended
	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Feb. 29, 2020 USD ($)	Nov. 30, 2018 USD ($)	Jun. 30, 2022 USD ($)	Jan. 31, 2022 USD ($)	Aug. 31, 2021 USD ($)	Mar. 29, 2021 USD ($)	Jul. 31, 2020 USD ($)	Feb. 28, 2018 EUR (€)
Cash flow hedging
Derivative
Derivative, notional amount novated							$ 900,000
Amount of derivative loss expected to be transferred from OCI					$ 286
Cash flow hedging \| November 2018 interest rate caps
Derivative
Derivative, cap interest rate		0.84%	2.50%	3.50%	0.84%
Derivative, notional amount				$ 500,000
Premium paid or amortized to acquire derivative instrument		$ 900	$ 130	$ 3,380	$ 4,410
Cash flow hedging \| July 2020 Interest Rate Cap [Member]
Derivative
Derivative, cap interest rate					1.00%				1.00%
Derivative, notional amount									$ 400,000
Premium paid or amortized to acquire derivative instrument					$ 137
Cash flow hedging \| January 2022 Interest Rate Cap expiring October 2024
Derivative
Derivative, cap interest rate						1.00%
Derivative, notional amount						$ 250,000
Cash flow hedging \| January 2022 Interest Rate Cap expiring October 2025
Derivative
Derivative, cap interest rate						1.00%
Derivative, notional amount						$ 250,000
Cash flow hedging \| January 2022 Interest Rate Cap
Derivative
Premium paid or amortized to acquire derivative instrument					$ 4,450
Net investment hedging \| Cross-currency interest rate swaps
Derivative
Derivative, notional amount								$ 311,380		€ 280,000
Premium paid or amortized to acquire derivative instrument	$ 13,170

- Definition

Derivative, Notional Amount Novated

+ References

No definition available.

+ Details

Name:	ecvt_DerivativeNotionalAmountNovated
Namespace Prefix:	ecvt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=121549185&loc=d3e80748-113994

+ Details

Name:	us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeCapInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The premium (cost) of a hedge, expensed during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeCostOfHedge
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

No definition available.

+ Details

Name:	us-gaap_DerivativeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

+ Details

Name:	us-gaap_DerivativeNotionalAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Details

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

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ecvt_November2018InterestRateCapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ecvt_July2020InterestRateCapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ecvt_January2022InterestRateCapExpiringOctober2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ecvt_January2022InterestRateCapExpiringOctober2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=ecvt_January2022InterestRateCapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_NetInvestmentHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CrossCurrencyInterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: