| Type | Description | Date | |
| S-1/A | S-1/A [Amend] - General form for registration of securities under the Securities Act of 1933 | May 28, 2019 | |
| UPLOAD | UPLOAD [Cover] - SEC-generated letter | May 28, 2019 | |
| EFFECT | EFFECT - Notice of Effectiveness | May 28, 2019 | |
| S-1 | S-1 - General form for registration of securities under the Securities Act of 1933 | May 17, 2019 | |
| POS AM | POS AM - Post-Effective amendments for registration statement | May 16, 2019 | |
| RW | RW - Registration Withdrawal Request | May 16, 2019 | |
| 8-K | 8-K - Current report | May 16, 2019 | |
| S-1/A | S-1/A [Amend] - General form for registration of securities under the Securities Act of 1933 | May 15, 2019 | |
| 10-Q | 10-Q - Quarterly report [Sections 13 or 15(d)] | May 8, 2019 | |
| 8-K | 8-K - Current report | April 9, 2019 | |
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