| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 05/31/17 | 11-K | Form 11-K: Annual report of employee stock purchase, savings and similar plans | 16 | |
| 05/31/17 | 11-K | Form 11-K: Annual report of employee stock purchase, savings and similar plans | 16 | |
| 05/30/17 | 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) | 20 | |
| 05/24/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/17/17 | EFFECT | Form EFFECT: Notice of Effectiveness | 1 | |
| 05/17/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/17/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/17/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/17/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/17/17 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |