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| 0000073756-22-000087-index.html | 2022-07-29 16:06:53 | |
| 0000073756-22-000087.txt | 2022-07-29 16:06:53 | |
 0000073756-22-000087-xbrl.zip | 285633 | 2022-07-29 16:06:53 |
| FilingSummary.xml | 26502 | 2022-07-29 16:06:53 |
| Financial_Report.xlsx | 86234 | 2022-07-29 16:06:53 |
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| oii-20220630.htm | 1419298 | 2022-07-29 16:06:53 |
| oii-20220630.xsd | 49895 | 2022-07-29 16:06:53 |
| oii-20220630_cal.xml | 60803 | 2022-07-29 16:06:53 |
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| oii-20220630_htm.xml | 1014579 | 2022-07-29 16:06:53 |
| oii-20220630_lab.xml | 610200 | 2022-07-29 16:06:53 |
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| oii_exhibitx3101x2q2022.htm | 11022 | 2022-07-29 16:06:53 |
| oii_exhibitx3102x2q2022.htm | 11087 | 2022-07-29 16:06:53 |
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| R9.htm | 8674 | 2022-07-29 16:06:53 |
| report.css | 2767 | 2022-07-29 16:06:53 |
| Show.js | 1085 | 2022-07-29 16:06:53 |