| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q4 2023 | $139M | -$30.9M | -18.2% | Dec 31, 2023 | 20-F | 2024-03-15 |
| Q4 2022 | $170M | +$13.1M | +8.33% | Dec 31, 2022 | 20-F | 2024-03-15 |
| Q4 2021 | $157M | -$40M | -20.3% | Dec 31, 2021 | 20-F | 2023-03-31 |
| Q3 2021 | $164M | +$8.47M | +5.43% | Sep 30, 2021 | 6-K | 2021-11-10 |
| Q2 2021 | $241M | +$55.5M | +29.9% | Jun 30, 2021 | 6-K | 2021-08-13 |
| Q4 2020 | $197M | -$82.6M | -29.5% | Dec 31, 2020 | 20-F | 2022-04-06 |
| Q3 2020 | $156M | -$139M | -47.2% | Sep 30, 2020 | 6-K | 2020-11-24 |
| Q2 2020 | $186M | -$83.7M | -31.1% | Jun 30, 2020 | 6-K | 2020-09-01 |
| Q4 2019 | $280M | +$81.9M | +41.4% | Dec 31, 2019 | 20-F | 2021-04-01 |
| Q3 2019 | $295M | +$116M | +64.8% | Sep 30, 2019 | 6-K | 2019-11-22 |
| Q2 2019 | $270M | +$27.6M | +11.4% | Jun 30, 2019 | 6-K | 2019-08-15 |
| Q4 2018 | $198M | -$39M | -16.5% | Dec 31, 2018 | 20-F | 2020-04-15 |
| Q3 2018 | $179M | -$44.4M | -19.9% | Sep 30, 2018 | 6-K | 2018-11-30 |
| Q2 2018 | $242M | +$17.8M | +7.96% | Jun 30, 2018 | 6-K/A | 2018-10-10 |
| Q4 2017 | $237M | -$19.2M | -7.52% | Dec 31, 2017 | 20-F | 2019-04-10 |
| Q3 2017 | $224M | +$1.53M | +0.69% | Sep 30, 2017 | 6-K | 2017-12-07 |
| Q2 2017 | $224M | -$4.7M | -2.06% | Jun 30, 2017 | 6-K | 2017-09-12 |
| Q4 2016 | $256M | -$56.1M | -18% | Dec 31, 2016 | 20-F | 2018-04-24 |
| Q3 2016 | $222M | Sep 30, 2016 | 6-K | 2016-11-28 | ||
| Q2 2016 | $229M | +$41M | +21.8% | Jun 30, 2016 | 6-K | 2016-08-25 |
| Q4 2015 | $312M | +$226M | +264% | Dec 31, 2015 | 6-K | 2017-10-06 |
| Q2 2015 | $188M | +$101M | +117% | Jun 30, 2015 | 6-K/A | 2015-09-17 |
| Q4 2014 | $85.7M | +$15.5M | +22.1% | Dec 31, 2014 | 20-F | 2016-04-27 |
| Q2 2014 | $86.5M | +$13.8M | +18.9% | Jun 30, 2014 | 6-K/A | 2014-11-20 |
| Q4 2013 | $70.2M | +$8.36M | +13.5% | Dec 31, 2013 | 20-F | 2015-04-28 |
| Q2 2013 | $72.7M | Jun 30, 2013 | 6-K/A | 2014-01-09 | ||
| Q4 2012 | $61.8M | -$85M | -57.9% | Dec 31, 2012 | 20-F | 2014-04-30 |
| Q4 2011 | $147M | -$183M | -55.5% | Dec 31, 2011 | 20-F | 2013-04-30 |
| Q4 2010 | $330M | Dec 31, 2010 | 6-K | 2013-01-15 |