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| 0000073756-23-000128-index.html | 2023-10-04 16:16:48 | |
| 0000073756-23-000128.txt | 2023-10-04 16:16:48 | |
 0000073756-23-000128-xbrl.zip | 73561 | 2023-10-04 16:16:48 |
| exhibit43oiithirdsupplemen.htm | 205138 | 2023-10-04 16:16:48 |
| exhibit45oiirra.htm | 135798 | 2023-10-04 16:16:48 |
| FilingSummary.xml | 1779 | 2023-10-04 16:16:48 |
| Financial_Report.xlsx | 5735 | 2023-10-04 16:16:48 |
| MetaLinks.json | 17828 | 2023-10-04 16:16:48 |
| oii-20231002.htm | 37894 | 2023-10-04 16:16:48 |
| oii-20231002.xsd | 2242 | 2023-10-04 16:16:48 |
 oii-20231002_g1.jpg | 20693 | 2023-10-04 16:16:48 |
| oii-20231002_htm.xml | 2742 | 2023-10-04 16:16:48 |
| oii-20231002_lab.xml | 24442 | 2023-10-04 16:16:48 |
| oii-20231002_pre.xml | 12678 | 2023-10-04 16:16:48 |
| R1.htm | 38175 | 2023-10-04 16:16:48 |
| report.css | 2767 | 2023-10-04 16:16:48 |
| Show.js | 1085 | 2023-10-04 16:16:48 |