| Type | Description | Date | |
| CORRESP | CORRESP [Cover] - Correspondence | June 25, 2020 | |
| UPLOAD | UPLOAD [Cover] - SEC-generated letter | June 25, 2020 | |
| S-1 | S-1 - General form for registration of securities under the Securities Act of 1933 | June 22, 2020 | |
| 10-K/A | 10-K/A [Amend] - Annual report [Section 13 and 15(d), not S-K Item 405] | June 22, 2020 | |
| 10-Q | 10-Q - Quarterly report [Sections 13 or 15(d)] | May 11, 2020 | |
| 8-K | 8-K - Current report | April 20, 2020 | |
| 8-K | 8-K - Current report | April 2, 2020 | |
| 424B3 | 424B3 - Prospectus [Rule 424(b)(3)] | March 27, 2020 | |
| 10-K | 10-K - Annual report [Section 13 and 15(d), not S-K Item 405] | March 23, 2020 | |
| 424B3 | 424B3 - Prospectus [Rule 424(b)(3)] | December 23, 2019 | |
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