Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-143645-index-headers.html | 2021-04-30 12:24:35 | |
| 0001193125-21-143645-index.html | 2021-04-30 12:24:35 | |
| 0001193125-21-143645.txt | 2021-04-30 12:24:35 | |
 0001193125-21-143645-xbrl.zip | 90463 | 2021-04-30 12:24:35 |
| d160371d10ka.htm | 745263 | 2021-04-30 12:24:35 |
| d160371d10ka_htm.xml | 6896 | 2021-04-30 12:24:35 |
| d160371dex311.htm | 3303 | 2021-04-30 12:24:35 |
| d160371dex312.htm | 3304 | 2021-04-30 12:24:35 |
| do-20211231.xsd | 5044 | 2021-04-30 12:24:35 |
| do-20211231_cal.xml | 742 | 2021-04-30 12:24:35 |
| do-20211231_def.xml | 1747 | 2021-04-30 12:24:35 |
| do-20211231_lab.xml | 24725 | 2021-04-30 12:24:35 |
| do-20211231_pre.xml | 15209 | 2021-04-30 12:24:35 |
| FilingSummary.xml | 1872 | 2021-04-30 12:24:35 |
| Financial_Report.xlsx | 6996 | 2021-04-30 12:24:35 |
 g160371dsp11.jpg | 26178 | 2021-04-30 12:24:35 |
| MetaLinks.json | 26376 | 2021-04-30 12:24:35 |
| R1.htm | 61469 | 2021-04-30 12:24:35 |
| report.css | 2767 | 2021-04-30 12:24:35 |
| Show.js | 1085 | 2021-04-30 12:24:35 |