| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q4 2022 | -$56.6M | -$1.62M | -2.95% | Jan 31, 2023 | 10-Q | 2023-03-14 |
| Q3 2022 | -$56.1M | -$1.44M | -2.64% | Oct 31, 2022 | 10-Q | 2022-12-15 |
| Q2 2022 | -$55.7M | -$1.42M | -2.62% | Jul 31, 2022 | 10-Q | 2022-09-19 |
| Q1 2022 | -$55.3M | -$1.35M | -2.51% | Apr 30, 2022 | 10-Q | 2023-03-14 |
| Q4 2021 | -$54.9M | -$3.16M | -6.11% | Jan 31, 2022 | 10-Q | 2022-03-24 |
| Q3 2021 | -$54.6M | -$4.13M | -8.19% | Oct 31, 2021 | 10-Q | 2021-12-15 |
| Q2 2021 | -$54.3M | -$5.02M | -10.2% | Jul 31, 2021 | 10-Q | 2021-09-14 |
| Q1 2021 | -$53.9M | -$5.22M | -10.7% | Apr 30, 2021 | 10-K | 2022-07-22 |
| Q4 2020 | -$51.8M | -$4.78M | -10.2% | Jan 31, 2021 | 10-Q | 2021-03-16 |
| Q3 2020 | -$50.5M | -$4.86M | -10.7% | Oct 31, 2020 | 10-Q | 2020-12-14 |
| Q2 2020 | -$49.3M | -$5.05M | -11.4% | Jul 31, 2020 | 10-Q | 2020-09-11 |
| Q1 2020 | -$48.7M | -$5.37M | -12.4% | Apr 30, 2020 | 10-K | 2021-08-11 |
| Q4 2019 | -$47M | -$5.1M | -12.2% | Jan 31, 2020 | 10-Q | 2020-03-13 |
| Q3 2019 | -$45.6M | -$4.72M | -11.5% | Oct 31, 2019 | 10-Q | 2019-12-16 |
| Q2 2019 | -$44.2M | -$4.14M | -10.3% | Jul 31, 2019 | 10-Q | 2019-09-17 |
| Q1 2019 | -$43.3M | -$4.02M | -10.2% | Apr 30, 2019 | 10-K | 2021-08-11 |
| Q4 2018 | -$41.9M | -$3.45M | -8.99% | Jan 31, 2019 | 10-Q | 2019-03-15 |
| Q3 2018 | -$40.9M | -$3.19M | -8.46% | Oct 31, 2018 | 10-Q | 2018-12-17 |
| Q2 2018 | -$40.1M | -$2.92M | -7.85% | Jul 31, 2018 | 10-Q | 2018-09-14 |
| Q1 2018 | -$39.3M | -$2.68M | -7.33% | Apr 30, 2018 | 10-K | 2019-07-29 |
| Q4 2017 | -$38.4M | -$3.35M | -9.55% | Jan 31, 2018 | 10-Q | 2018-03-15 |
| Q3 2017 | -$37.7M | -$3.8M | -11.2% | Oct 31, 2017 | 10-Q | 2017-12-15 |
| Q2 2017 | -$37.2M | -$4.43M | -13.5% | Jul 31, 2017 | 10-Q | 2017-09-14 |
| Q1 2017 | -$36.6M | -$5.26M | -16.8% | Apr 30, 2017 | 10-K | 2018-08-03 |
| Q4 2016 | -$35.1M | -$4.59M | -15.1% | Jan 31, 2017 | 10-Q | 2017-03-16 |
| Q3 2016 | -$33.9M | -$4.4M | -14.9% | Oct 31, 2016 | 10-Q | 2016-12-15 |
| Q2 2016 | -$32.8M | -$4.34M | -15.3% | Jul 31, 2016 | 10-Q | 2016-09-14 |
| Q1 2016 | -$31.4M | -$4.6M | -17.2% | Apr 30, 2016 | 10-K | 2017-07-28 |
| Q4 2015 | -$30.5M | -$5.66M | -22.8% | Jan 31, 2016 | 10-Q | 2016-03-15 |
| Q3 2015 | -$29.5M | Oct 31, 2015 | 10-Q | 2015-12-15 | ||
| Q2 2015 | -$28.4M | Jul 31, 2015 | 10-Q | 2015-09-14 | ||
| Q1 2015 | -$26.8M | -$2.01M | -8.11% | Apr 30, 2015 | 10-K | 2016-07-28 |
| Q4 2014 | -$24.8M | Jan 31, 2015 | 10-Q | 2015-03-17 | ||
| Q1 2014 | -$24.7M | Apr 30, 2014 | 10-K | 2015-07-28 |