Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000945764-20-000166-index-headers.html | 2020-11-04 08:44:47 | |
| 0000945764-20-000166-index.html | 2020-11-04 08:44:47 | |
| 0000945764-20-000166.txt | 2020-11-04 08:44:47 | |
 0000945764-20-000166-xbrl.zip | 111124 | 2020-11-04 08:44:47 |
| den-20201030.xsd | 4521 | 2020-11-04 08:44:47 |
| den-20201030x8kex101.htm | 291807 | 2020-11-04 08:44:47 |
| den-20201030x8kex102.htm | 170729 | 2020-11-04 08:44:47 |
| den-20201030x8kex103.htm | 257415 | 2020-11-04 08:44:47 |
| den-20201030xpipelinet.htm | 64583 | 2020-11-04 08:44:47 |
| 3581948 | 2020-11-04 08:44:47 | |
| den-20201030xpipelinet_htm.xml | 4383 | 2020-11-04 08:44:47 |
| den-20201030_cal.xml | 698 | 2020-11-04 08:44:47 |
| den-20201030_def.xml | 1548 | 2020-11-04 08:44:47 |
| den-20201030_lab.xml | 26147 | 2020-11-04 08:44:47 |
| den-20201030_pre.xml | 13654 | 2020-11-04 08:44:47 |
| den-20201104x8kex991.htm | 16788 | 2020-11-04 08:44:47 |
| FilingSummary.xml | 1967 | 2020-11-04 08:44:47 |
| Financial_Report.xlsx | 5455 | 2020-11-04 08:44:47 |
 headerlogo.jpg | 84556 | 2020-11-04 08:44:47 |
| MetaLinks.json | 18996 | 2020-11-04 08:44:47 |
| R1.htm | 38625 | 2020-11-04 08:44:47 |
| report.css | 2767 | 2020-11-04 08:44:47 |
| Show.js | 1085 | 2020-11-04 08:44:47 |