| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q3 2025 | 18.3M | +37.8K | +0.21% | 29 Sep 2025 | 10-K | 29 Sep 2025 |
| Q1 2025 | 18.3M | +52.5K | +0.29% | 15 May 2025 | 10-Q | 15 May 2025 |
| Q4 2024 | 18.3M | +62.2K | +0.34% | 12 Feb 2025 | 10-Q | 12 Feb 2025 |
| Q3 2024 | 18.2M | +70.6K | +0.39% | 30 Sep 2024 | 10-K | 30 Sep 2024 |
| Q1 2024 | 18.2M | -132K | -0.72% | 15 May 2024 | 10-Q | 15 May 2024 |
| Q4 2023 | 18.2M | -204K | -1.11% | 14 Feb 2024 | 10-Q | 14 Feb 2024 |
| Q3 2023 | 18.2M | -294K | -1.59% | 28 Sep 2023 | 10-K | 28 Sep 2023 |
| Q1 2023 | 18.4M | 15 May 2023 | 10-Q | 15 May 2023 | ||
| Q4 2022 | 18.4M | -692K | -3.62% | 14 Feb 2023 | 10-Q | 14 Feb 2023 |
| Q3 2022 | 18.5M | -926K | -4.78% | 28 Sep 2022 | 10-K | 28 Sep 2022 |
| Q2 2022 | 18.6M | -882K | -4.53% | 16 May 2022 | 10-Q | 16 May 2022 |
| Q4 2021 | 19.1M | -423K | -2.17% | 14 Feb 2022 | 10-Q | 14 Feb 2022 |
| Q3 2021 | 19.4M | -105K | -0.54% | 28 Sep 2021 | 10-K | 28 Sep 2021 |
| Q2 2021 | 19.5M | 17 May 2021 | 10-Q | 17 May 2021 | ||
| Q1 2021 | 19.6M | +99.3K | +0.51% | 16 Feb 2021 | 10-Q | 16 Feb 2021 |
| Q4 2020 | 19.5M | -51.1K | -0.26% | 16 Nov 2020 | 10-Q | 16 Nov 2020 |
| Q3 2020 | 19.5M | -321K | -1.62% | 25 Sep 2020 | 10-K | 28 Sep 2020 |
| Q1 2020 | 19.5M | -412K | -2.07% | 11 May 2020 | 10-Q | 11 May 2020 |
| Q4 2019 | 19.6M | -273K | -1.38% | 10 Feb 2020 | 10-Q | 10 Feb 2020 |
| Q3 2019 | 19.8M | +28.7K | +0.15% | 11 Sep 2019 | 10-K | 12 Sep 2019 |
| Q1 2019 | 19.9M | +105K | +0.53% | 08 May 2019 | 10-Q | 09 May 2019 |
| Q4 2018 | 19.9M | +215K | +1.1% | 06 Feb 2019 | 10-Q | 07 Feb 2019 |
| Q3 2018 | 19.8M | +369K | +1.9% | 12 Sep 2018 | 10-K | 13 Sep 2018 |
| Q1 2018 | 19.8M | +354K | +1.82% | 08 May 2018 | 10-Q | 10 May 2018 |
| Q4 2017 | 19.6M | +253K | +1.31% | 07 Feb 2018 | 10-Q | 08 Feb 2018 |
| Q3 2017 | 19.4M | +137K | +0.71% | 11 Sep 2017 | 10-K | 13 Sep 2017 |
| Q1 2017 | 19.4M | +193K | +1% | 10 May 2017 | 10-Q | 10 May 2017 |
| Q4 2016 | 19.4M | +185K | +0.96% | 06 Feb 2017 | 10-Q | 06 Feb 2017 |
| Q3 2016 | 19.3M | +222K | +1.17% | 07 Sep 2016 | 10-K | 07 Sep 2016 |
| Q1 2016 | 19.2M | +1.22M | +6.8% | 09 May 2016 | 10-Q | 09 May 2016 |
| Q4 2015 | 19.2M | 08 Feb 2016 | 10-Q | 08 Feb 2016 | ||
| Q3 2015 | 19.1M | +1.96M | +11.4% | 11 Sep 2015 | 10-K/A | 09 Oct 2015 |
| Q1 2015 | 18M | +1.08M | +6.37% | 06 May 2015 | 10-Q | 07 May 2015 |
| Q3 2014 | 17.1M | +546K | +3.3% | 11 Sep 2014 | 10-K | 11 Sep 2014 |
| Q1 2014 | 16.9M | +800K | +4.96% | 09 May 2014 | 10-Q | 12 May 2014 |
| Q4 2013 | 17.4M | +4.85M | +38.8% | 05 Feb 2014 | 10-Q | 05 Feb 2015 |
| Q3 2013 | 16.6M | +4.32M | +35.3% | 23 Sep 2013 | 10-K | 23 Sep 2013 |
| Q1 2013 | 16.1M | +4.21M | +35.3% | 08 May 2013 | 10-Q | 09 May 2013 |
| Q4 2012 | 12.5M | +11.5M | +1152% | 01 Feb 2013 | 10-Q | 14 Feb 2013 |
| Q3 2012 | 12.2M | 21 Sep 2012 | 10-K | 25 Sep 2012 | ||
| Q1 2012 | 11.9M | +493K | +4.32% | 14 May 2012 | 10-Q | 14 May 2012 |
| Q4 2011 | 1M | 03 Feb 2012 | 10-Q | 14 Feb 2012 | ||
| Q1 2011 | 11.4M | 05 May 2011 | 10-Q | 14 Nov 2011 |