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

Stock-Based Compensation - Stock-Based Compensation Expense (Details)

v3.23.3

Stock-Based Compensation - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Mar. 07, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award
Stock compensation expense		$ 3,477	$ 4,740	$ 12,547	$ 17,419
Stock-based compensation expense, tax benefit		826	$ 1,162	$ 2,980	$ 4,271
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award
Forfeited, performance-based stock options (in shares)	284,956
Vested stock options, expired and unexercised (in shares)				328,677
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Forfeited, performance-based restricted shares (in shares)	277,056
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Forfeited, performance-based restricted shares (in shares)				195,334
Unrecognized stock-based compensation expense		13,205		$ 13,205
Unrecognized stock-based compensation expense, period for recognition				2 years 7 days
Performance Stock Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized stock-based compensation expense		$ 7,377		$ 7,377
Unrecognized stock-based compensation expense, period for recognition				2 years 3 months 21 days

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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