| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q4 2022 | $14.5M | -$1.48M | -9.24% | Dec 31, 2022 | 10-K | 2023-03-10 |
| Q3 2022 | $15M | -$1.93M | -11.4% | Sep 30, 2022 | 10-Q | 2022-11-10 |
| Q2 2022 | $15.6M | -$3.12M | -16.7% | Jun 30, 2022 | 10-Q | 2022-08-12 |
| Q1 2022 | $16.1M | -$3.88M | -19.5% | Mar 31, 2022 | 10-Q | 2022-05-10 |
| Q4 2021 | $16M | -$6.63M | -29.3% | Dec 31, 2021 | 10-K | 2023-03-10 |
| Q3 2021 | $16.9M | -$10.6M | -38.6% | Sep 30, 2021 | 10-Q | 2021-11-09 |
| Q2 2021 | $18.7M | -$10.2M | -35.3% | Jun 30, 2021 | 10-Q | 2021-08-10 |
| Q1 2021 | $19.9M | -$12.6M | -38.8% | Mar 31, 2021 | 10-Q | 2021-05-14 |
| Q4 2020 | $22.6M | -$13.3M | -37.1% | Dec 31, 2020 | 10-K | 2022-03-16 |
| Q3 2020 | $27.6M | -$10.6M | -27.8% | Sep 30, 2020 | 10-Q | 2020-11-09 |
| Q2 2020 | $28.9M | -$11.7M | -28.8% | Jun 30, 2020 | 10-Q | 2020-08-07 |
| Q1 2020 | $32.6M | -$10.3M | -24% | Mar 31, 2020 | 10-Q | 2020-05-14 |
| Q4 2019 | $35.9M | -$10.1M | -22% | Dec 31, 2019 | 10-K | 2021-03-16 |
| Q3 2019 | $38.2M | -$13.6M | -26.3% | Sep 30, 2019 | 10-Q | 2019-11-08 |
| Q2 2019 | $40.5M | -$14.7M | -26.6% | Jun 30, 2019 | 10-Q | 2019-08-07 |
| Q1 2019 | $42.9M | -$15.5M | -26.5% | Mar 31, 2019 | 10-Q | 2019-05-14 |
| Q4 2018 | $46.1M | -$14.3M | -23.6% | Dec 31, 2018 | 10-K | 2020-03-16 |
| Q3 2018 | $51.8M | -$11.4M | -18% | Sep 30, 2018 | 10-Q | 2018-11-13 |
| Q2 2018 | $55.2M | -$12.5M | -18.5% | Jun 30, 2018 | 10-Q | 2018-08-10 |
| Q1 2018 | $58.3M | -$14.1M | -19.4% | Mar 31, 2018 | 10-Q | 2018-05-15 |
| Q4 2017 | $60.3M | -$13.2M | -18% | Dec 31, 2017 | 10-K | 2019-03-22 |
| Q3 2017 | $63.2M | -$14.9M | -19.1% | Sep 30, 2017 | 10-Q | 2017-11-14 |
| Q2 2017 | $67.7M | -$13.3M | -16.4% | Jun 30, 2017 | 10-Q | 2017-08-14 |
| Q1 2017 | $72.4M | -$11.2M | -13.4% | Mar 31, 2017 | 10-Q | 2017-05-15 |
| Q4 2016 | $73.6M | -$16.7M | -18.5% | Dec 31, 2016 | 10-K | 2018-03-27 |
| Q3 2016 | $78.1M | -$15.4M | -16.5% | Sep 30, 2016 | 10-Q | 2016-11-14 |
| Q2 2016 | $81M | -$20M | -19.8% | Jun 30, 2016 | 10-Q | 2016-08-15 |
| Q1 2016 | $83.6M | -$39.6M | -32.1% | Mar 31, 2016 | 10-Q | 2016-05-16 |
| Q4 2015 | $90.3M | -$51.7M | -36.4% | Dec 31, 2015 | 10-K | 2017-03-27 |
| Q3 2015 | $93.5M | -$55.4M | -37.2% | Sep 30, 2015 | 10-Q | 2015-11-16 |
| Q2 2015 | $101M | -$57.1M | -36.1% | Jun 30, 2015 | 10-Q/A | 2015-10-08 |
| Q1 2015 | $123M | -$44.4M | -26.5% | Mar 31, 2015 | 10-Q | 2015-05-14 |
| Q4 2014 | $142M | -$30.1M | -17.5% | Dec 31, 2014 | 10-K | 2016-03-29 |
| Q3 2014 | $149M | -$31M | -17.2% | Sep 30, 2014 | 10-Q | 2014-11-13 |
| Q2 2014 | $158M | -$14.9M | -8.62% | Jun 30, 2014 | 10-Q | 2014-08-13 |
| Q1 2014 | $168M | -$3.98M | -2.32% | Mar 31, 2014 | 10-Q | 2014-05-15 |
| Q4 2013 | $172M | +$675K | +0.39% | Dec 31, 2013 | 10-K | 2015-03-30 |
| Q3 2013 | $180M | +$11.4M | +6.75% | Sep 30, 2013 | 10-Q | 2013-11-14 |
| Q2 2013 | $173M | +$9.23M | +5.63% | Jun 30, 2013 | 10-Q | 2013-08-14 |
| Q1 2013 | $172M | +$14.2M | +9.03% | Mar 31, 2013 | 10-Q | 2013-05-15 |
| Q4 2012 | $171M | +$4.69M | +2.81% | Dec 31, 2012 | 10-K | 2014-03-28 |
| Q3 2012 | $169M | -$21.6M | -11.4% | Sep 30, 2012 | 10-Q | 2012-11-14 |
| Q2 2012 | $164M | -$29.1M | -15.1% | Jun 30, 2012 | 10-Q | 2012-08-14 |
| Q1 2012 | $157M | Mar 31, 2012 | 10-Q | 2012-05-15 | ||
| Q4 2011 | $167M | -$69.1M | -29.3% | Dec 31, 2011 | 10-K | 2013-03-27 |
| Q3 2011 | $190M | Sep 30, 2011 | 10-Q | 2011-11-14 | ||
| Q2 2011 | $193M | Jun 30, 2011 | 10-Q | 2011-08-15 | ||
| Q4 2010 | $236M | Dec 31, 2010 | 10-K | 2012-03-30 |