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| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 05/02/18 | 8-K | Form 8-K: Current report filing | 9 | |
| 04/20/18 | 8-K | Form 8-K: Current report filing | 5 | |
| 03/21/18 | 10-K | Form 10-K: Annual report pursuant to Section 13 and 15(d) |
|
146 |
| 12/18/17 | 8-K/A | Form 8-K/A: Current report filing | 3 | |
| 11/14/17 | 8-K | Form 8-K: Current report filing | 143 | |
| 11/13/17 | 10-Q | Form 10-Q: Quarterly report pursuant to Section 13 or 15(d) |
|
32 |
| 10/06/17 | 8-K | Form 8-K: Current report filing | 12 | |
| 08/11/17 | 10-Q | Form 10-Q: Quarterly report pursuant to Section 13 or 15(d) |
|
32 |
| 07/21/17 | 8-K | Form 8-K: Current report filing | 3 | |
| 05/26/17 | SD | Form SD: Specialized Disclosure Report filed pursuant to Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act relating to the use of conflict minerals (Rule 13p-1) | 7 |