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|---|---|---|
 0001193125-19-290077-index-headers.html | 2019-11-12 16:55:26 | |
| 0001193125-19-290077-index.html | 2019-11-12 16:55:26 | |
| 0001193125-19-290077.txt | 2019-11-12 16:55:26 | |
 0001193125-19-290077-xbrl.zip | 65133 | 2019-11-12 16:55:26 |
| d828949d10q.htm | 236872 | 2019-11-12 16:55:26 |
| d828949dex311.htm | 11602 | 2019-11-12 16:55:26 |
| d828949dex312.htm | 11608 | 2019-11-12 16:55:26 |
| d828949dex321.htm | 4614 | 2019-11-12 16:55:26 |
| d828949dex322.htm | 4757 | 2019-11-12 16:55:26 |
| FilingSummary.xml | 13985 | 2019-11-12 16:55:26 |
| Financial_Report.xlsx | 35429 | 2019-11-12 16:55:26 |
| oacu-20190930.xml | 263709 | 2019-11-12 16:55:26 |
| oacu-20190930.xsd | 27500 | 2019-11-12 16:55:26 |
| oacu-20190930_cal.xml | 17452 | 2019-11-12 16:55:26 |
| oacu-20190930_def.xml | 143953 | 2019-11-12 16:55:26 |
| oacu-20190930_lab.xml | 185787 | 2019-11-12 16:55:26 |
| oacu-20190930_pre.xml | 178118 | 2019-11-12 16:55:26 |
| R1.htm | 46843 | 2019-11-12 16:55:26 |
| R10.htm | 14499 | 2019-11-12 16:55:26 |
| R11.htm | 9514 | 2019-11-12 16:55:26 |
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| R17.htm | 17745 | 2019-11-12 16:55:26 |
| R18.htm | 17372 | 2019-11-12 16:55:26 |
| R19.htm | 46138 | 2019-11-12 16:55:26 |
| R2.htm | 58855 | 2019-11-12 16:55:26 |
| R20.htm | 13163 | 2019-11-12 16:55:26 |
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| R22.htm | 12211 | 2019-11-12 16:55:26 |
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| R5.htm | 35249 | 2019-11-12 16:55:26 |
| R6.htm | 57597 | 2019-11-12 16:55:26 |
| R7.htm | 31190 | 2019-11-12 16:55:26 |
| R8.htm | 26535 | 2019-11-12 16:55:26 |
| R9.htm | 5863 | 2019-11-12 16:55:26 |
| report.css | 2767 | 2019-11-12 16:55:26 |
| Show.js | 1085 | 2019-11-12 16:55:26 |