Ecovyst, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details
Uncategorized

Benefit Plans - Accumulated Benefit Obligation (Details)

v3.8.0.1

Benefit Plans - Accumulated Benefit Obligation (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Pension Plans \| U.S.
Defined Benefit Plan Disclosure
Accumulated benefit obligation	$ 257,882	$ 244,003
Defined Benefit Plan, Funded (Unfunded) Status of Plan
Projected benefit obligation	261,102	247,418
Accumulated benefit obligation	257,882	244,003
Fair value of plan assets	218,374	198,915
Defined Benefit Pension Plans \| Foreign
Defined Benefit Plan Disclosure
Accumulated benefit obligation	114,095	100,473
Defined Benefit Plan, Funded (Unfunded) Status of Plan
Projected benefit obligation	67,750	58,837
Accumulated benefit obligation	64,526	55,981
Fair value of plan assets	42,632	36,771
Supplemental Retirement Plans
Defined Benefit Plan Disclosure
Accumulated benefit obligation	$ 12,781	$ 13,225

- Definition

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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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

No definition available.

+ Details

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- References

No definition available.

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- Definition

Amount of accumulated benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e2417-114920

+ Details

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- Definition

Fair value of plan assets for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

+ References

+ Details

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- Definition

Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=77993564&loc=d3e4179-114921

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