CENTURY ALUMINUM CO Quarterly Unrecognized Tax Benefits in USD from Q4 2010 to Q4 2023

Taxonomy & unit
us-gaap: USD
Description
Amount of unrecognized tax benefits.
Summary
Century Aluminum Co quarterly Unrecognized Tax Benefits history and growth rate from Q4 2010 to Q4 2023.
  • Century Aluminum Co Unrecognized Tax Benefits for the quarter ending December 31, 2023 was $3M, a 36.4% increase year-over-year.
Unrecognized Tax Benefits, Quarterly (USD)
Unrecognized Tax Benefits, YoY Quarterly Growth (%)
Period Value YoY Chg Change % Date Report Filed
Q4 2023 $3M +$800K +36.4% Dec 31, 2023 10-K 2024-03-15
Q4 2022 $2.2M -$1.8M -45% Dec 31, 2022 10-K 2024-03-15
Q4 2021 $4M -$2.5M -38.5% Dec 31, 2021 10-K 2024-03-15
Q4 2020 $6.5M -$1.7M -20.7% Dec 31, 2020 10-K 2024-03-15
Q4 2019 $8.2M -$1.3M -13.7% Dec 31, 2019 10-K 2023-02-27
Q4 2018 $9.5M +$1.1M +13.1% Dec 31, 2018 10-K 2022-02-25
Q4 2017 $8.4M +$2M +31.3% Dec 31, 2017 10-K 2021-03-04
Q4 2016 $6.4M +$2.6M +68.4% Dec 31, 2016 10-K 2020-02-27
Q4 2015 $3.8M +$1.8M +90% Dec 31, 2015 10-K 2019-02-28
Q4 2014 $2M +$800K +66.7% Dec 31, 2014 10-K 2018-02-28
Q4 2013 $1.2M -$16.4M -93.2% Dec 31, 2013 8-K 2017-07-28
Q3 2013 $14.3M -$3.44M -19.4% Sep 30, 2013 10-Q 2013-11-08
Q2 2013 $14.3M -$2.3M -13.9% Jun 30, 2013 10-Q 2013-08-09
Q1 2013 $14.3M -$2.2M -13.3% Mar 31, 2013 10-Q 2013-05-10
Q4 2012 $17.6M +$1.7M +10.7% Dec 31, 2012 10-K 2016-03-07
Q3 2012 $17.8M Sep 30, 2012 10-Q 2012-11-09
Q2 2012 $16.6M Jun 30, 2012 10-Q 2012-08-09
Q1 2012 $16.5M Mar 31, 2012 10-Q 2012-05-10
Q4 2011 $15.9M -$700K -4.22% Dec 31, 2011 10-K 2015-03-02
Q4 2010 $16.6M Dec 31, 2010 10-K 2014-03-14
* An asterisk sign (*) next to the value indicates that the value is likely invalid.