| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/31/99 | 10-K405 | Form 10-K405: Annual report [Sections 13 and 15(d), S-K Item 405] | 154 | |
| 03/05/99 | SC 13D/A | Form SC 13D/A: General Statement of Acquisition of Beneficial Ownership | 6 | |
| 02/16/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 4 | |
| 02/12/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 6 | |
| 02/12/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 3 | |
| 02/12/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 4 | |
| 02/09/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 7 | |
| 02/02/99 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 7 | |
| 11/12/98 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] | 248 | |
| 11/02/98 | SC 13D | Form SC 13D: General Statement of Acquisition of Beneficial Ownership | 72 |