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

Subsequent Events (Details)

v3.8.0.1

Subsequent Events (Details) - Subsequent Event - USD ($) $ / shares in Units, $ in Thousands	Oct. 03, 2017	Oct. 02, 2017
Subsequent Event [Line Items]
Stock options granted (in shares)		621,747
IPO
Subsequent Event [Line Items]
Price of shares issued (usd per share)	$ 17.50
Shares issued (shares)	29,000,000
Proceeds from initial public offering	$ 480,525
Restricted Stock Units
Subsequent Event [Line Items]
Equity instruments other than options, grants in period (in shares)		1,654,685
Stock Awards
Subsequent Event [Line Items]
Equity instruments other than options, grants in period (in shares)		21,067

- Definition

The cash inflow associated with the amount received from entity's first offering of stock to the public.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

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Period Type:	duration

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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