| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/18/00 | SC 13D/A | Form SC 13D/A: General Statement of Acquisition of Beneficial Ownership | 3 | |
| 03/03/00 | 10-K405 | Form 10-K405: Annual report [Sections 13 and 15(d), S-K Item 405] | 89 | |
| 02/11/00 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 4 | |
| 02/10/00 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 4 | |
| 01/28/00 | SC 13G/A | Form SC 13G/A: Statement of Beneficial Ownership by Certain Investors | 7 | |
| 11/15/99 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] | 13 | |
| 08/16/99 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] | 13 | |
| 05/14/99 | 10-Q | Form 10-Q: Quarterly report [Sections 13 or 15(d)] | 13 | |
| 04/23/99 | DEF 14A | Form DEF 14A: Definitive proxy statements | 12 | |
| 04/20/99 | SC 13G | Form SC 13G: Statement of Beneficial Ownership by Certain Investors | 6 |