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|---|---|---|
 0001193125-19-086252-index-headers.html | 2019-03-26 11:58:38 | |
| 0001193125-19-086252-index.html | 2019-03-26 11:58:38 | |
| 0001193125-19-086252.txt | 2019-03-26 11:58:38 | |
 0001193125-19-086252-xbrl.zip | 110083 | 2019-03-26 11:58:38 |
| d684190d10k.htm | 1030200 | 2019-03-26 11:58:38 |
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| d684190dex311.htm | 10832 | 2019-03-26 11:58:38 |
| d684190dex312.htm | 10913 | 2019-03-26 11:58:38 |
| d684190dex321.htm | 3986 | 2019-03-26 11:58:38 |
| d684190dex322.htm | 3904 | 2019-03-26 11:58:38 |
| d684190dex991.htm | 376370 | 2019-03-26 11:58:38 |
| d684190dex992.htm | 368298 | 2019-03-26 11:58:38 |
| d684190dex993.htm | 372724 | 2019-03-26 11:58:38 |
| d684190dex994.htm | 167327 | 2019-03-26 11:58:38 |
| FilingSummary.xml | 24958 | 2019-03-26 11:58:38 |
| Financial_Report.xlsx | 53777 | 2019-03-26 11:58:38 |
 g684190103.jpg | 3313 | 2019-03-26 11:58:38 |
 g684190123.jpg | 3326 | 2019-03-26 11:58:38 |
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 g684190sp43b.jpg | 1961 | 2019-03-26 11:58:38 |
| offlp-20181231.xml | 911899 | 2019-03-26 11:58:38 |
| offlp-20181231.xsd | 38519 | 2019-03-26 11:58:38 |
| offlp-20181231_cal.xml | 44693 | 2019-03-26 11:58:38 |
| offlp-20181231_def.xml | 188789 | 2019-03-26 11:58:38 |
| offlp-20181231_lab.xml | 268901 | 2019-03-26 11:58:38 |
| offlp-20181231_pre.xml | 234759 | 2019-03-26 11:58:38 |
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| R10.htm | 96741 | 2019-03-26 11:58:38 |
| R11.htm | 34029 | 2019-03-26 11:58:38 |
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| R19.htm | 31089 | 2019-03-26 11:58:38 |
| R2.htm | 68102 | 2019-03-26 11:58:38 |
| R20.htm | 65279 | 2019-03-26 11:58:38 |
| R21.htm | 43796 | 2019-03-26 11:58:38 |
| R22.htm | 14493 | 2019-03-26 11:58:38 |
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| R31.htm | 17872 | 2019-03-26 11:58:38 |
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| R8.htm | 16394 | 2019-03-26 11:58:38 |
| R9.htm | 19063 | 2019-03-26 11:58:38 |
| report.css | 2767 | 2019-03-26 11:58:38 |
| Show.js | 1085 | 2019-03-26 11:58:38 |