Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-22-144262-index-headers.html | 2022-05-09 07:00:56 | |
| 0001193125-22-144262-index.html | 2022-05-09 07:00:56 | |
| 0001193125-22-144262.txt | 2022-05-09 07:00:56 | |
 0001193125-22-144262-xbrl.zip | 54284 | 2022-05-09 07:00:56 |
| d357700d8k.htm | 56718 | 2022-05-09 07:00:56 |
| d357700d8k_htm.xml | 3417 | 2022-05-09 07:00:56 |
| d357700dex31.htm | 89625 | 2022-05-09 07:00:56 |
| d357700dex32.htm | 129135 | 2022-05-09 07:00:56 |
| dk-20220503.xsd | 2850 | 2022-05-09 07:00:56 |
| dk-20220503_lab.xml | 17980 | 2022-05-09 07:00:56 |
| dk-20220503_pre.xml | 11256 | 2022-05-09 07:00:56 |
| FilingSummary.xml | 1823 | 2022-05-09 07:00:56 |
| Financial_Report.xlsx | 5703 | 2022-05-09 07:00:56 |
 g357700g0506094315011.jpg | 2927 | 2022-05-09 07:00:56 |
| MetaLinks.json | 18307 | 2022-05-09 07:00:56 |
| R1.htm | 40246 | 2022-05-09 07:00:56 |
| report.css | 2767 | 2022-05-09 07:00:56 |
| Show.js | 1085 | 2022-05-09 07:00:56 |