| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q1 2022 | $243M | -$2M | -0.82% | Mar 31, 2022 | 10-Q | 2022-05-05 |
| Q4 2021 | $243M | -$2M | -0.82% | Dec 31, 2021 | 10-Q | 2022-05-05 |
| Q3 2021 | $244M | -$2M | -0.81% | Sep 30, 2021 | 10-Q | 2021-11-04 |
| Q2 2021 | $244M | -$2M | -0.81% | Jun 30, 2021 | 10-Q | 2021-08-05 |
| Q1 2021 | $245M | -$2M | -0.81% | Mar 31, 2021 | 10-Q | 2021-05-07 |
| Q4 2020 | $245M | -$2M | -0.81% | Dec 31, 2020 | 10-K | 2022-02-18 |
| Q3 2020 | $246M | -$1M | -0.41% | Sep 30, 2020 | 10-Q | 2020-11-05 |
| Q2 2020 | $246M | -$2M | -0.81% | Jun 30, 2020 | 10-Q | 2020-08-06 |
| Q1 2020 | $247M | -$1M | -0.4% | Mar 31, 2020 | 10-Q | 2020-05-11 |
| Q4 2019 | $247M | -$2M | -0.8% | Dec 31, 2019 | 10-K | 2021-02-19 |
| Q3 2019 | $247M | -$5M | -1.98% | Sep 30, 2019 | 10-Q | 2019-11-07 |
| Q2 2019 | $248M | -$5M | -1.98% | Jun 30, 2019 | 10-Q | 2019-08-08 |
| Q1 2019 | $248M | -$161M | -39.4% | Mar 31, 2019 | 10-Q | 2019-05-09 |
| Q4 2018 | $249M | -$162M | -39.4% | Dec 31, 2018 | 10-K | 2020-02-21 |
| Q3 2018 | $252M | Sep 30, 2018 | 10-Q | 2018-11-08 | ||
| Q2 2018 | $253M | Jun 30, 2018 | 10-Q | 2018-08-09 | ||
| Q1 2018 | $409M | -$4M | -0.97% | Mar 31, 2018 | 10-Q | 2018-05-10 |
| Q4 2017 | $411M | -$423M | -50.7% | Dec 31, 2017 | 10-K | 2019-02-22 |
| Q1 2017 | $413M | -$747M | -64.4% | Mar 31, 2017 | 10-Q | 2017-11-08 |
| Q4 2016 | $834M | -$331M | -28.4% | Dec 31, 2016 | 10-K | 2018-02-23 |
| Q3 2016 | $1.15B | -$25M | -2.13% | Sep 30, 2016 | 10-Q | 2016-11-09 |
| Q2 2016 | $1.15B | -$25M | -2.12% | Jun 30, 2016 | 10-Q | 2016-08-08 |
| Q1 2016 | $1.16B | -$24M | -2.03% | Mar 31, 2016 | 10-Q/A | 2016-08-08 |
| Q4 2015 | $1.17B | -$24M | -2.02% | Dec 31, 2015 | 10-K | 2017-02-24 |
| Q3 2015 | $1.17B | -$23M | -1.93% | Sep 30, 2015 | 10-K/A | 2016-08-08 |
| Q2 2015 | $1.18B | -$23M | -1.92% | Jun 30, 2015 | 10-K/A | 2016-08-08 |
| Q1 2015 | $1.18B | -$19M | -1.58% | Mar 31, 2015 | 10-K/A | 2016-08-08 |
| Q4 2014 | $1.19B | -$57M | -4.58% | Dec 31, 2014 | 10-K/A | 2016-08-08 |
| Q3 2014 | $1.2B | +$167M | +16.2% | Sep 30, 2014 | 10-K/A | 2016-08-08 |
| Q2 2014 | $1.2B | -$287M | -19.3% | Jun 30, 2014 | 10-K/A | 2016-08-08 |
| Q1 2014 | $1.2B | -$290M | -19.4% | Mar 31, 2014 | 10-K/A | 2016-08-08 |
| Q4 2013 | $1.25B | -$253M | -16.9% | Dec 31, 2013 | 10-K | 2015-02-27 |
| Q3 2013 | $1.03B | Sep 30, 2013 | 10-Q | 2013-11-07 | ||
| Q2 2013 | $1.49B | Jun 30, 2013 | 10-Q | 2013-08-08 | ||
| Q1 2013 | $1.49B | Mar 31, 2013 | 10-Q | 2013-05-09 | ||
| Q4 2012 | $1.5B | -$125M | -7.71% | Dec 31, 2012 | 10-K | 2014-02-27 |
| Q4 2011 | $1.62B | -$360M | -18.2% | Dec 31, 2011 | 10-K | 2012-02-24 |
| Q3 2011 | $1.17B | Sep 30, 2011 | 10-Q | 2011-11-08 | ||
| Q2 2011 | $1.17B | Jun 30, 2011 | 10-Q | 2011-08-09 | ||
| Q4 2010 | $1.98B | Dec 31, 2010 | 10-K | 2012-02-24 |