| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q4 2022 | -$1.17B | -$301M | -34.8% | Dec 31, 2022 | 10-K | 2023-03-31 |
| Q3 2022 | -$1.11B | -$262M | -30.9% | Sep 30, 2022 | 10-Q | 2022-11-10 |
| Q2 2022 | -$899M | -$105M | -13.3% | Jun 30, 2022 | 10-Q | 2022-08-11 |
| Q1 2022 | -$886M | -$113M | -14.6% | Mar 31, 2022 | 10-Q | 2022-05-12 |
| Q4 2021 | -$866M | -$140M | -19.2% | Dec 31, 2021 | 10-K | 2023-03-31 |
| Q3 2021 | -$848M | -$174M | -25.9% | Sep 30, 2021 | 10-Q | 2021-11-12 |
| Q2 2021 | -$793M | -$139M | -21.3% | Jun 30, 2021 | 10-Q | 2021-08-12 |
| Q1 2021 | -$773M | -$236M | -43.9% | Mar 31, 2021 | 10-Q | 2021-05-13 |
| Q4 2020 | -$726M | -$227M | -45.3% | Dec 31, 2020 | 10-K | 2022-03-24 |
| Q3 2020 | -$673M | -$193M | -40.1% | Sep 30, 2020 | 10-Q | 2020-11-13 |
| Q2 2020 | -$654M | -$205M | -45.6% | Jun 30, 2020 | 10-Q | 2020-08-13 |
| Q1 2020 | -$537M | -$116M | -27.7% | Mar 31, 2020 | 10-Q | 2020-05-14 |
| Q4 2019 | -$500M | -$115M | -29.8% | Dec 31, 2019 | 10-K | 2021-03-25 |
| Q3 2019 | -$480M | -$190M | -65.3% | Sep 30, 2019 | 10-Q | 2019-11-12 |
| Q2 2019 | -$449M | -$172M | -62% | Jun 30, 2019 | 10-Q | 2019-08-12 |
| Q1 2019 | -$421M | -$152M | -56.8% | Mar 31, 2019 | 10-Q | 2019-05-15 |
| Q4 2018 | -$385M | -$128M | -49.9% | Dec 31, 2018 | 10-K | 2020-03-26 |
| Q3 2018 | -$291M | -$44.8M | -18.2% | Sep 30, 2018 | 10-Q | 2018-11-13 |
| Q2 2018 | -$277M | -$42.2M | -18% | Jun 30, 2018 | 10-Q | 2018-08-13 |
| Q1 2018 | -$268M | -$43.3M | -19.2% | Mar 31, 2018 | 10-Q | 2018-05-15 |
| Q4 2017 | -$257M | -$41.6M | -19.3% | Dec 31, 2017 | 10-K | 2019-04-01 |
| Q3 2017 | -$246M | -$40.7M | -19.8% | Sep 30, 2017 | 10-Q | 2017-11-13 |
| Q2 2017 | -$235M | -$39.6M | -20.2% | Jun 30, 2017 | 10-Q | 2017-08-11 |
| Q1 2017 | -$225M | -$37.9M | -20.3% | Mar 31, 2017 | 10-Q | 2017-05-16 |
| Q4 2016 | -$215M | -$37.4M | -21% | Dec 31, 2016 | 10-K | 2018-03-27 |
| Q3 2016 | -$205M | -$40.8M | -24.8% | Sep 30, 2016 | 10-Q | 2016-11-14 |
| Q2 2016 | -$196M | -$40.6M | -26.2% | Jun 30, 2016 | 10-Q | 2016-08-12 |
| Q1 2016 | -$187M | -$40.6M | -27.7% | Mar 31, 2016 | 10-Q | 2016-05-13 |
| Q4 2015 | -$178M | -$40.5M | -29.5% | Dec 31, 2015 | 10-K | 2017-03-20 |
| Q3 2015 | -$164M | -$37.5M | -29.6% | Sep 30, 2015 | 10-Q | 2015-11-12 |
| Q2 2015 | -$155M | -$40.6M | -35.5% | Jun 30, 2015 | 10-Q | 2015-08-14 |
| Q1 2015 | -$147M | -$43.8M | -42.6% | Mar 31, 2015 | 10-Q | 2015-05-14 |
| Q4 2014 | -$137M | -$48.2M | -54% | Dec 31, 2014 | 10-K | 2016-03-28 |
| Q3 2014 | -$127M | Sep 30, 2014 | 10-Q | 2014-11-14 | ||
| Q2 2014 | -$114M | Jun 30, 2014 | 10-Q | 2014-08-14 | ||
| Q1 2014 | -$103M | Mar 31, 2014 | 10-Q | 2014-05-15 | ||
| Q4 2013 | -$89.2M | -$89.2M | Dec 31, 2013 | 10-K | 2015-03-31 | |
| Q4 2012 | $0 | Dec 31, 2012 | 10-K | 2014-04-08 |