Unrecognized Tax Benefits of NORTHWESTERN CORP from 31 Dec 2010 to 30 Sep 2023

Taxonomy & unit
us-gaap: USD
Description
Amount of unrecognized tax benefits.
Summary
NORTHWESTERN CORP quarterly Unrecognized Tax Benefits in USD history and change rate from 31 Dec 2010 to 30 Sep 2023.
  • NORTHWESTERN CORP Unrecognized Tax Benefits for the quarter ending 30 Sep 2023 was $29,100,000, a 5.5% decline year-over-year.
Source SEC data
View on sec.gov
Unrecognized Tax Benefits, Quarterly (USD)
Unrecognized Tax Benefits, YoY Quarterly Change (%)

NORTHWESTERN CORP Quarterly Unrecognized Tax Benefits (USD)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q3 2023 $29,100,000 -$1,700,000 -5.5% 30 Sep 2023 10-Q 27 Oct 2023 2023 Q3
Q2 2023 $29,500,000 -$1,700,000 -5.4% 30 Jun 2023 10-Q 25 Jul 2023 2023 Q2
Q1 2023 $29,900,000 -$1,700,000 -5.4% 31 Mar 2023 10-Q 28 Apr 2023 2023 Q1
Q4 2022 $30,330,000 -$1,719,000 -5.4% 31 Dec 2022 10-K 17 Feb 2023 2022 FY
Q3 2022 $30,800,000 -$1,700,000 -5.2% 30 Sep 2022 10-Q 25 Oct 2022 2022 Q3
Q2 2022 $31,200,000 -$1,400,000 -4.3% 30 Jun 2022 10-Q 28 Jul 2022 2022 Q2
Q1 2022 $31,600,000 -$1,500,000 -4.5% 31 Mar 2022 10-Q 29 Apr 2022 2022 Q1
Q4 2021 $32,049,000 -$1,442,000 -4.3% 31 Dec 2021 10-K 17 Feb 2023 2022 FY
Q3 2021 $32,500,000 -$1,400,000 -4.1% 30 Sep 2021 10-Q 25 Oct 2021 2021 Q3
Q2 2021 $32,600,000 -$1,600,000 -4.7% 30 Jun 2021 10-Q 28 Jul 2021 2021 Q2
Q1 2021 $33,100,000 -$1,600,000 -4.6% 31 Mar 2021 10-Q 22 Apr 2021 2021 Q1
Q4 2020 $33,491,000 -$1,594,000 -4.5% 31 Dec 2020 10-K 17 Feb 2023 2022 FY
Q3 2020 $33,900,000 -$1,400,000 -4% 30 Sep 2020 10-Q 22 Oct 2020 2020 Q3
Q2 2020 $34,200,000 -$1,000,000 -2.8% 30 Jun 2020 10-Q 29 Jul 2020 2020 Q2
Q1 2020 $34,700,000 -$21,000,000 -38% 31 Mar 2020 10-Q 23 Apr 2020 2020 Q1
Q4 2019 $35,085,000 -$21,065,000 -38% 31 Dec 2019 10-K 17 Feb 2023 2022 FY
Q3 2019 $35,300,000 -$21,300,000 -38% 30 Sep 2019 10-Q 30 Oct 2019 2019 Q3
Q2 2019 $35,200,000 -$21,900,000 -38% 30 Jun 2019 10-Q 24 Jul 2019 2019 Q2
Q1 2019 $55,700,000 -$800,000 -1.4% 31 Mar 2019 10-Q 24 Apr 2019 2019 Q1
Q4 2018 $56,150,000 -$1,323,000 -2.3% 31 Dec 2018 10-K 11 Feb 2022 2021 FY
Q3 2018 $56,600,000 -$25,700,000 -31% 30 Sep 2018 10-Q 24 Oct 2018 2018 Q3
Q2 2018 $57,100,000 -$27,300,000 -32% 30 Jun 2018 10-Q 20 Jul 2018 2018 Q2
Q1 2018 $56,500,000 -$29,800,000 -35% 31 Mar 2018 10-Q 25 Apr 2018 2018 Q1
Q4 2017 $57,473,000 -$30,956,000 -35% 31 Dec 2017 10-K 12 Feb 2021 2020 FY
Q3 2017 $82,300,000 -$7,700,000 -8.6% 30 Sep 2017 10-Q 02 Nov 2017 2017 Q3
Q2 2017 $84,400,000 -$6,600,000 -7.3% 30 Jun 2017 10-Q 26 Jul 2017 2017 Q2
Q1 2017 $86,300,000 -$4,900,000 -5.4% 31 Mar 2017 10-Q 27 Apr 2017 2017 Q1
Q4 2016 $88,429,000 -$3,958,000 -4.3% 31 Dec 2016 10-K 13 Feb 2020 2019 FY
Q3 2016 $90,000,000 -$6,400,000 -6.6% 30 Sep 2016 10-Q 20 Oct 2016 2016 Q3
Q2 2016 $91,000,000 -$7,100,000 -7.2% 30 Jun 2016 10-Q 22 Jul 2016 2016 Q2
Q1 2016 $91,200,000 -$4,200,000 -4.4% 31 Mar 2016 10-Q 20 Apr 2016 2016 Q1
Q4 2015 $92,387,000 -$3,542,000 -3.7% 31 Dec 2015 10-K 12 Feb 2019 2018 FY
Q3 2015 $96,400,000 +$400,000 +0.42% 30 Sep 2015 10-Q 22 Oct 2015 2015 Q3
Q2 2015 $98,100,000 -$16,900,000 -15% 30 Jun 2015 10-Q 23 Jul 2015 2015 Q2
Q1 2015 $95,400,000 -$18,700,000 -16% 31 Mar 2015 10-Q 23 Apr 2015 2015 Q1
Q4 2014 $95,929,000 -$17,537,000 -15% 31 Dec 2014 10-K 13 Feb 2018 2017 FY
Q3 2014 $96,000,000 -$18,000,000 -16% 30 Sep 2014 10-Q 23 Oct 2014 2014 Q3
Q2 2014 $115,000,000 +$1,800,000 +1.6% 30 Jun 2014 10-Q 24 Jul 2014 2014 Q2
Q1 2014 $114,100,000 +$300,000 +0.26% 31 Mar 2014 10-Q 24 Apr 2014 2014 Q1
Q4 2013 $113,466,000 +$175,000 +0.15% 31 Dec 2013 10-K 17 Feb 2017 2016 FY
Q3 2013 $114,000,000 -$21,500,000 -16% 30 Sep 2013 10-Q 24 Oct 2013 2013 Q3
Q2 2013 $113,200,000 -$21,100,000 -16% 30 Jun 2013 10-Q 25 Jul 2013 2013 Q2
Q1 2013 $113,800,000 -$18,800,000 -14% 31 Mar 2013 10-Q 25 Apr 2013 2013 Q1
Q4 2012 $113,291,000 -$18,658,000 -14% 31 Dec 2012 10-K 11 Feb 2016 2015 FY
Q3 2012 $135,500,000 +$4,149,000 +3.2% 30 Sep 2012 10-Q 24 Oct 2012 2012 Q3
Q2 2012 $134,300,000 +$4,200,000 +3.2% 30 Jun 2012 10-Q 24 Jul 2012 2012 Q2
Q1 2012 $132,600,000 31 Mar 2012 10-Q 25 Apr 2012 2012 Q1
Q4 2011 $131,949,000 +$11,090,000 +9.2% 31 Dec 2011 10-K 12 Feb 2015 2014 FY
Q3 2011 $131,351,000 30 Sep 2011 10-Q 26 Oct 2011 2011 Q3
Q2 2011 $130,100,000 30 Jun 2011 10-Q 27 Jul 2011 2011 Q2
Q4 2010 $120,859,000 31 Dec 2010 10-K 19 Feb 2014 2013 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.