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

Reportable Segments - Summary Financial Information by Reportable Segment (Details)

v3.22.0.1

Reportable Segments - Summary Financial Information by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales	$ 170,197	$ 167,428	$ 146,952	$ 126,624	$ 124,050	$ 130,675	$ 115,641	$ 125,554	$ 611,201	$ 495,920	$ 532,747
Equity in net income from affiliated companies									27,737	21,065	45,808
Amortization of investment in affiliate step-up									(6,480)	(6,634)
Ecoservices
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									500,513	401,913	447,080
Catalyst Technologies
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									110,688	94,007	85,667
Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Adjusted EBITDA									227,611	192,615	240,185
Operating segments \| Ecoservices
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									500,513	401,913	447,080
Adjusted EBITDA									177,672	157,198	175,640
Operating segments \| Catalyst Technologies
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									110,688	94,007	85,667
Adjusted EBITDA									88,028	74,504	107,808
Operating segments \| Unallocated corporate expenses
Segment Reporting, Revenue Reconciling Item [Line Items]
Adjusted EBITDA									(38,089)	(39,087)	(43,263)
Zeolyst Joint Venture \| Catalyst Technologies
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales									131,332	128,623	170,338
Adjusted EBITDA									49,872	42,515	68,138
Equity in net income from affiliated companies									27,827	21,157	45,899
Amortization of investment in affiliate step-up									6,480	6,634	7,534
Joint venture depreciation, amortization and interest									$ 15,565	$ 14,724	$ 14,705

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