Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000768847-22-000058-index-headers.html | 2022-07-29 11:29:28 | |
| 0000768847-22-000058-index.html | 2022-07-29 11:29:28 | |
| 0000768847-22-000058.txt | 2022-07-29 11:29:28 | |
 0000768847-22-000058-xbrl.zip | 96276 | 2022-07-29 11:29:28 |
| ck0000768847-20211231.htm | 31583 | 2022-07-29 11:29:28 |
| ck0000768847-20211231.xsd | 5505 | 2022-07-29 11:29:28 |
| ck0000768847-20211231_cal.xml | 2502 | 2022-07-29 11:29:28 |
| ck0000768847-20211231_def.xml | 140905 | 2022-07-29 11:29:28 |
 ck0000768847-20211231_g1.jpg | 43608 | 2022-07-29 11:29:28 |
| ck0000768847-20211231_htm.xml | 19863 | 2022-07-29 11:29:28 |
| ck0000768847-20211231_lab.xml | 229366 | 2022-07-29 11:29:28 |
| ck0000768847-20211231_pre.xml | 152975 | 2022-07-29 11:29:28 |
| FilingSummary.xml | 2969 | 2022-07-29 11:29:28 |
| MetaLinks.json | 243595 | 2022-07-29 11:29:28 |
| R1.htm | 18201 | 2022-07-29 11:29:28 |
| R2.htm | 17683 | 2022-07-29 11:29:28 |
| R3.htm | 28185 | 2022-07-29 11:29:28 |
| report.css | 2767 | 2022-07-29 11:29:28 |
| Show.js | 1085 | 2022-07-29 11:29:28 |