Ecovyst, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

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

Financial Instruments - Narrative (Details)

v3.25.4

Financial Instruments - Narrative (Details) $ in Thousands	12 Months Ended
Financial Instruments - Narrative (Details) $ in Thousands	Dec. 31, 2025 USD ($) derivative
Derivative
Number of instruments in effect \| derivative	2
Gain (loss) on derivative instruments	$ 743
Amount of unrealized losses expected to be transferred from AOCI	(584)
Cash flow hedging
Derivative
Notional amount	625,000
Cash flow hedging \| Interest rate cap one
Derivative
Notional amount	175,000
Cash flow hedging \| Interest rate cap two
Derivative
Notional amount	450,000
Cash flow hedging \| Interest rate cap three
Derivative
Notional amount	150,000
Cash flow hedging \| Interest rate cap three period one
Derivative
Notional amount	250,000
Cash flow hedging \| Interest rate cap three period two
Derivative
Notional amount	200,000
Cash flow hedging \| Interest cap four
Derivative
Notional amount	$ 200,000

- Definition

Derivative, Number of Instruments in Effect

+ References

No definition available.

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- 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://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
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- 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
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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

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-Topic 815
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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

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-SubTopic 10
-Name Accounting Standards Codification
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