KOPPERS HOLDINGS INC. Accrual for Environmental Loss Contingencies, Revision in Estimates
KOPPERS HOLDINGS INC. (KOP) reported Accrual for Environmental Loss Contingencies, Revision in Estimates of -$100.00 thousand for the 6-month period ending 2026-06-30, per its 10-Q filed 2026-08-06.
Financial Statements › Notes › Environmental Remediation Obligations
us-gaap:AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForRevisionInEstimates · last filed 2026-08-06
- KOPPERS HOLDINGS INC. accrual for environmental loss contingencies, revision in estimates for the quarter ending 2026-06-30 was $0.00.
- KOPPERS HOLDINGS INC. accrual for environmental loss contingencies, revision in estimates for the quarter ending 2026-03-31 was -$100.00K.
- KOPPERS HOLDINGS INC. accrual for environmental loss contingencies, revision in estimates for the quarter ending 2022-12-31 was $0.00.
- KOPPERS HOLDINGS INC. accrual for environmental loss contingencies, revision in estimates for the quarter ending 2022-09-30 was $0.00.
- KOPPERS HOLDINGS INC. accrual for environmental loss contingencies, revision in estimates for fiscal 2024 was $0.00.
- KOPPERS HOLDINGS INC. accrual for environmental loss contingencies, revision in estimates for fiscal 2022 was $0.00.
- KOPPERS HOLDINGS INC. accrual for environmental loss contingencies, revision in estimates for fiscal 2021 was -$100.00K.
- KOPPERS HOLDINGS INC. accrual for environmental loss contingencies, revision in estimates for fiscal 2020 was $0.00.
| Period end | Accrual for Environmental Loss Contingencies, Revision in Estimates 3 month | Accrual for Environmental Loss Contingencies, Revision in Estimates 6 month | Accrual for Environmental Loss Contingencies, Revision in Estimates 9 month | Accrual for Environmental Loss Contingencies, Revision in Estimates 12 month | Accrual for Environmental Loss Contingencies, Revision in Estimates 12 month as first filed |
|---|---|---|---|---|---|
| 2026-06-30 | $0.00 derived: 10-Q 6 month − 10-Q 3 month · filed 2026-08-06 | -$100.00K 10-Q · filed 2026-08-06 | |||
| 2026-03-31 | -$100.00K 10-Q · filed 2026-05-08 | ||||
| 2025-12-31 | -$300.00K 10-Q · filed 2026-08-06 | ||||
| 2024-12-31 | $0.00 10-K · filed 2026-02-26 | ||||
| 2022-12-31 | $0.00 derived: 10-K 12 month − 10-Q 9 month · filed 2023-02-27 | $0.00 derived: sum of 2 quarters · filed 2023-02-27 | $0.00 derived: sum of 3 quarters · filed 2023-02-27 | $0.00 10-K · filed 2023-02-27 | |
| 2022-09-30 | $0.00 derived: 10-Q 9 month − 10-Q 6 month · filed 2022-11-04 | $0.00 derived: sum of 2 quarters · filed 2022-11-04 | $0.00 10-Q · filed 2022-11-04 | $0.00 derived: sum of 4 quarters · filed 2023-02-27 | |
| 2022-06-30 | $0.00 derived: 10-Q 6 month − 10-Q 3 month · filed 2022-08-04 | $0.00 10-Q · filed 2022-08-04 | $0.00 derived: sum of 3 quarters · filed 2023-02-27 | $0.00 derived: sum of 4 quarters · filed 2023-02-27 | |
| 2022-03-31 | $0.00 10-Q · filed 2022-05-06 | $0.00 derived: sum of 2 quarters · filed 2023-02-27 | $0.00 derived: sum of 3 quarters · filed 2023-02-27 | ||
| 2021-12-31 | $0.00 derived: 10-K 12 month − 10-Q 9 month · filed 2023-02-27 | $0.00 derived: sum of 2 quarters · filed 2023-02-27 | -$100.00K 10-K · filed 2023-02-27 | ||
| 2021-09-30 | $0.00 derived: 10-Q 9 month − 10-Q 6 month · filed 2021-11-04 | -$100.00K 10-Q · filed 2021-11-04 | |||
| 2021-06-30 | -$100.00K 10-Q · filed 2021-08-06 | ||||
| 2020-12-31 | $0.00 derived: 10-K 12 month − 10-Q 9 month · filed 2022-02-23 | $0.00 derived: sum of 2 quarters · filed 2022-02-23 | $0.00 derived: sum of 3 quarters · filed 2022-02-23 | $0.00 10-K · filed 2022-02-23 | |
| 2020-09-30 | $0.00 derived: 10-Q 9 month − 10-Q 6 month · filed 2020-11-04 | $0.00 derived: sum of 2 quarters · filed 2020-11-04 | $0.00 10-Q · filed 2020-11-04 | -$200.00K derived: sum of 4 quarters · filed 2021-02-24 | |
| 2020-06-30 | $0.00 derived: 10-Q 6 month − 10-Q 3 month · filed 2020-08-05 | $0.00 10-Q · filed 2020-08-05 | -$200.00K derived: sum of 3 quarters · filed 2021-02-24 | -$600.00K derived: sum of 4 quarters · filed 2021-02-24 | |
| 2020-03-31 | $0.00 10-Q · filed 2020-05-07 | -$200.00K derived: sum of 2 quarters · filed 2021-02-24 | -$600.00K derived: sum of 3 quarters · filed 2021-02-24 | -$800.00K derived: sum of 4 quarters · filed 2021-02-24 | |
| 2019-12-31 | -$200.00K derived: 10-K 12 month − 10-Q 9 month · filed 2021-02-24 | -$600.00K derived: sum of 2 quarters · filed 2021-02-24 | -$800.00K derived: sum of 3 quarters · filed 2021-02-24 | -$800.00K 10-K · filed 2021-02-24 | |
| 2019-09-30 | -$400.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2019-11-07 | -$600.00K derived: sum of 2 quarters · filed 2019-11-07 | -$600.00K 10-Q · filed 2019-11-07 | -$2.90M derived: sum of 4 quarters · filed 2020-02-27 | |
| 2019-06-30 | -$200.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2019-08-08 | -$200.00K 10-Q · filed 2019-08-08 | -$2.50M derived: sum of 3 quarters · filed 2020-02-27 | -$2.60M derived: sum of 4 quarters · filed 2020-02-27 | |
| 2019-03-31 | $0.00 10-Q · filed 2019-05-03 | -$2.30M derived: sum of 2 quarters · filed 2020-02-27 | -$2.40M derived: sum of 3 quarters · filed 2020-02-27 | -$2.40M derived: sum of 4 quarters · filed 2020-02-27 | |
| 2018-12-31 | -$2.30M derived: 10-K 12 month − 10-Q 9 month · filed 2020-02-27 | -$2.40M derived: sum of 2 quarters · filed 2020-02-27 | -$2.40M derived: sum of 3 quarters · filed 2020-02-27 | -$2.40M 10-K · filed 2020-02-27 | |
| 2018-09-30 | -$100.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2018-11-08 | -$100.00K derived: sum of 2 quarters · filed 2018-11-08 | -$100.00K 10-Q · filed 2018-11-08 | -$500.00K derived: sum of 4 quarters · filed 2019-03-01 | |
| 2018-06-30 | $0.00 derived: 10-Q 6 month − 10-Q 3 month · filed 2018-08-09 | $0.00 10-Q · filed 2018-08-09 | -$400.00K derived: sum of 3 quarters · filed 2019-03-01 | -$400.00K derived: sum of 4 quarters · filed 2019-03-01 | |
| 2018-03-31 | $0.00 10-Q · filed 2018-05-03 | -$400.00K derived: sum of 2 quarters · filed 2019-03-01 | -$400.00K derived: sum of 3 quarters · filed 2019-03-01 | -$400.00K derived: sum of 4 quarters · filed 2019-03-01 | |
| 2017-12-31 | -$400.00K derived: 10-K 12 month − 10-Q 9 month · filed 2019-03-01 | -$400.00K derived: sum of 2 quarters · filed 2019-03-01 | -$400.00K derived: sum of 3 quarters · filed 2019-03-01 | -$700.00K 10-K · filed 2019-03-01 | |
| 2017-09-30 | $0.00 derived: 10-Q 9 month − 10-Q 6 month · filed 2017-11-09 | $0.00 derived: sum of 2 quarters · filed 2017-11-09 | -$300.00K 10-Q · filed 2017-11-09 | -$1.20M derived: sum of 4 quarters · filed 2018-02-27 | |
| 2017-06-30 | $0.00 derived: 10-Q 6 month − 10-Q 3 month · filed 2017-08-03 | -$300.00K 10-Q · filed 2017-08-03 | -$1.20M derived: sum of 3 quarters · filed 2018-02-27 | -$1.30M derived: sum of 4 quarters · filed 2018-02-27 | |
| 2017-03-31 | -$300.00K 10-Q · filed 2017-05-08 | -$1.20M derived: sum of 2 quarters · filed 2018-02-27 | -$1.30M derived: sum of 3 quarters · filed 2018-02-27 | -$1.30M derived: sum of 4 quarters · filed 2018-02-27 | |
| 2016-12-31 | -$900.00K derived: 10-K 12 month − 10-Q 9 month · filed 2018-02-27 | -$1.00M derived: sum of 2 quarters · filed 2018-02-27 | -$1.00M derived: sum of 3 quarters · filed 2018-02-27 | -$1.00M 10-K · filed 2018-02-27 | |
| 2016-09-30 | -$100.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2016-11-03 | -$100.00K derived: sum of 2 quarters · filed 2016-11-03 | -$100.00K 10-Q · filed 2016-11-03 | -$700.00K derived: sum of 4 quarters · filed 2017-02-24 | |
| 2016-06-30 | $0.00 derived: 10-Q 6 month − 10-Q 3 month · filed 2016-08-04 | $0.00 10-Q · filed 2016-08-04 | -$600.00K derived: sum of 3 quarters · filed 2017-02-24 | -$600.00K derived: sum of 4 quarters · filed 2017-02-24 | |
| 2016-03-31 | $0.00 10-Q · filed 2016-05-06 | -$600.00K derived: sum of 2 quarters · filed 2017-02-24 | -$600.00K derived: sum of 3 quarters · filed 2017-02-24 | -$500.00K derived: sum of 4 quarters · filed 2017-02-24 | |
| 2015-12-31 | -$600.00K derived: 10-K 12 month − 10-Q 9 month · filed 2017-02-24 | -$600.00K derived: sum of 2 quarters · filed 2017-02-24 | -$500.00K derived: sum of 3 quarters · filed 2017-02-24 | -$500.00K 10-K · filed 2017-02-24 | |
| 2015-09-30 | $0.00 derived: 10-Q 9 month − 10-Q 6 month · filed 2015-11-05 | $100.00K derived: sum of 2 quarters · filed 2015-11-05 | $100.00K 10-Q · filed 2015-11-05 | -$1.60M derived: sum of 4 quarters · filed 2016-02-29 | |
| 2015-06-30 | $100.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2015-08-06 | $100.00K 10-Q · filed 2015-08-06 | -$1.60M derived: sum of 3 quarters · filed 2016-02-29 | -$1.40M derived: sum of 4 quarters · filed 2016-02-29 | |
| 2015-03-31 | $0.00 10-Q · filed 2015-05-08 | -$1.70M derived: sum of 2 quarters · filed 2016-02-29 | -$1.50M derived: sum of 3 quarters · filed 2016-02-29 | -$1.50M derived: sum of 4 quarters · filed 2016-02-29 | |
| 2014-12-31 | -$1.70M derived: 10-K 12 month − 10-Q 9 month · filed 2016-02-29 | -$1.50M derived: sum of 2 quarters · filed 2016-02-29 | -$1.50M derived: sum of 3 quarters · filed 2016-02-29 | -$1.50M 10-K · filed 2016-02-29 | $1.50M 10-K · filed 2015-03-02 |
| 2014-09-30 | $200.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2014-11-10 | $200.00K derived: sum of 2 quarters · filed 2014-11-10 | $200.00K 10-Q · filed 2014-11-10 | $1.40M derived: sum of 4 quarters · filed 2014-11-10 | |
| 2014-06-30 | $0.00 derived: 10-Q 6 month − 10-Q 3 month · filed 2014-08-07 | $0.00 10-Q · filed 2014-08-07 | $1.20M derived: sum of 3 quarters · filed 2014-08-07 | $2.40M derived: sum of 4 quarters · filed 2014-08-07 | |
| 2014-03-31 | $0.00 10-Q · filed 2014-05-07 | $1.20M derived: sum of 2 quarters · filed 2014-05-07 | $2.40M derived: sum of 3 quarters · filed 2014-05-07 | $2.40M derived: sum of 4 quarters · filed 2014-05-07 | |
| 2013-12-31 | $1.20M 10-Q · filed 2014-05-07 | $2.40M derived: sum of 2 quarters · filed 2014-05-07 | $2.40M derived: sum of 3 quarters · filed 2014-05-07 | $1.20M 10-K · filed 2015-03-02 | |
| 2013-09-30 | $1.20M derived: 10-Q 9 month − 10-Q 6 month · filed 2013-11-07 | $1.20M derived: sum of 2 quarters · filed 2013-11-07 | $1.20M 10-Q · filed 2013-11-07 | $1.40M derived: sum of 4 quarters · filed 2014-03-03 | |
| 2013-06-30 | $0.00 derived: 10-Q 6 month − 10-Q 3 month · filed 2013-08-08 | $0.00 10-Q · filed 2013-08-08 | $200.00K derived: sum of 3 quarters · filed 2014-03-03 | $600.00K derived: sum of 4 quarters · filed 2014-03-03 | |
| 2013-03-31 | $0.00 10-Q · filed 2013-05-03 | $200.00K derived: sum of 2 quarters · filed 2014-03-03 | $600.00K derived: sum of 3 quarters · filed 2014-03-03 | $300.00K derived: sum of 4 quarters · filed 2014-03-03 | |
| 2012-12-31 | $200.00K derived: 10-K 12 month − 10-Q 9 month · filed 2014-03-03 | $600.00K derived: sum of 2 quarters · filed 2014-03-03 | $300.00K derived: sum of 3 quarters · filed 2014-03-03 | $400.00K 10-K · filed 2014-03-03 | |
| 2012-09-30 | $400.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2012-11-09 | $100.00K derived: sum of 2 quarters · filed 2012-11-09 | $200.00K 10-Q · filed 2012-11-09 | ||
| 2012-06-30 | -$300.00K derived: 10-Q 6 month − 8-K 3 month · filed 2012-08-09 | -$200.00K 10-Q · filed 2012-08-09 | |||
| 2012-03-31 | $100.00K 8-K · filed 2012-06-27 | ||||
| 2011-12-31 | $1.60M 10-K · filed 2013-02-25 | ||||
| 2011-03-31 | $1.60M 8-K · filed 2012-06-27 | ||||
| 2010-12-31 | $4.30M 8-K · filed 2012-06-27 |
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