Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000750813-18-000014-index-headers.html | 2018-05-10 14:32:54 | |
| 0000750813-18-000014-index.html | 2018-05-10 14:32:54 | |
| 0000750813-18-000014.txt | 2018-05-10 14:32:54 | |
 0000750813-18-000014-xbrl.zip | 149461 | 2018-05-10 14:32:54 |
| a2018q110-q.htm | 980150 | 2018-05-10 14:32:54 |
| cik0000750813-20180331.xml | 1756428 | 2018-05-10 14:32:54 |
| cik0000750813-20180331.xsd | 31520 | 2018-05-10 14:32:54 |
| cik0000750813-20180331_cal.xml | 51119 | 2018-05-10 14:32:54 |
| cik0000750813-20180331_def.xml | 170298 | 2018-05-10 14:32:54 |
| cik0000750813-20180331_lab.xml | 349424 | 2018-05-10 14:32:54 |
| cik0000750813-20180331_pre.xml | 262839 | 2018-05-10 14:32:54 |
| FilingSummary.xml | 25980 | 2018-05-10 14:32:54 |
| Financial_Report.xlsx | 64757 | 2018-05-10 14:32:54 |
| R1.htm | 20430 | 2018-05-10 14:32:54 |
| R10.htm | 16386 | 2018-05-10 14:32:54 |
| R11.htm | 6534 | 2018-05-10 14:32:54 |
| R12.htm | 14651 | 2018-05-10 14:32:54 |
| R13.htm | 27330 | 2018-05-10 14:32:54 |
| R14.htm | 22408 | 2018-05-10 14:32:54 |
| R15.htm | 5586 | 2018-05-10 14:32:54 |
| R16.htm | 6108 | 2018-05-10 14:32:54 |
| R17.htm | 544515 | 2018-05-10 14:32:54 |
| R18.htm | 59420 | 2018-05-10 14:32:54 |
| R19.htm | 32524 | 2018-05-10 14:32:54 |
| R2.htm | 71188 | 2018-05-10 14:32:54 |
| R20.htm | 11974 | 2018-05-10 14:32:54 |
| R21.htm | 22506 | 2018-05-10 14:32:54 |
| R22.htm | 22205 | 2018-05-10 14:32:54 |
| R23.htm | 542444 | 2018-05-10 14:32:54 |
| R24.htm | 15799 | 2018-05-10 14:32:54 |
| R25.htm | 14054 | 2018-05-10 14:32:54 |
| R26.htm | 14975 | 2018-05-10 14:32:54 |
| R27.htm | 14962 | 2018-05-10 14:32:54 |
| R28.htm | 11197 | 2018-05-10 14:32:54 |
| R29.htm | 19969 | 2018-05-10 14:32:54 |
| R3.htm | 19284 | 2018-05-10 14:32:54 |
| R30.htm | 13886 | 2018-05-10 14:32:54 |
| R31.htm | 4162 | 2018-05-10 14:32:54 |
| R32.htm | 19313 | 2018-05-10 14:32:54 |
| R33.htm | 13965 | 2018-05-10 14:32:54 |
| R34.htm | 14270 | 2018-05-10 14:32:54 |
| R35.htm | 12892 | 2018-05-10 14:32:54 |
| R36.htm | 12377 | 2018-05-10 14:32:54 |
| R37.htm | 6959 | 2018-05-10 14:32:54 |
| R38.htm | 132738 | 2018-05-10 14:32:54 |
| R39.htm | 59525 | 2018-05-10 14:32:54 |
| R4.htm | 31144 | 2018-05-10 14:32:54 |
| R40.htm | 23188 | 2018-05-10 14:32:54 |
| R41.htm | 58126 | 2018-05-10 14:32:54 |
| R5.htm | 10654 | 2018-05-10 14:32:54 |
| R6.htm | 21626 | 2018-05-10 14:32:54 |
| R7.htm | 64273 | 2018-05-10 14:32:54 |
| R8.htm | 10190 | 2018-05-10 14:32:54 |
| R9.htm | 64622 | 2018-05-10 14:32:54 |
| report.css | 2767 | 2018-05-10 14:32:54 |
| sei-ex3112018q1.htm | 15493 | 2018-05-10 14:32:54 |
| sei-ex3122018q1.htm | 15558 | 2018-05-10 14:32:54 |
| sei-ex3212018q1.htm | 8913 | 2018-05-10 14:32:54 |
| sei-ex3222018q1.htm | 8129 | 2018-05-10 14:32:54 |
| Show.js | 1410 | 2018-05-10 14:32:54 |