Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001704715-20-000052-index-headers.html | 2020-11-17 16:16:35 | |
| 0001704715-20-000052-index.html | 2020-11-17 16:16:35 | |
| 0001704715-20-000052.txt | 2020-11-17 16:16:35 | |
 0001704715-20-000052-xbrl.zip | 95050 | 2020-11-17 16:16:35 |
| ctra-20201111.htm | 41483 | 2020-11-17 16:16:35 |
| ctra-20201111.xsd | 2438 | 2020-11-17 16:16:35 |
| ctra-20201111_cal.xml | 720 | 2020-11-17 16:16:35 |
| ctra-20201111_def.xml | 1653 | 2020-11-17 16:16:35 |
| ctra-20201111_htm.xml | 10937 | 2020-11-17 16:16:35 |
| ctra-20201111_lab.xml | 23970 | 2020-11-17 16:16:35 |
| ctra-20201111_pre.xml | 12656 | 2020-11-17 16:16:35 |
| exhibit101.htm | 838881 | 2020-11-17 16:16:35 |
| exhibit991.htm | 12316 | 2020-11-17 16:16:35 |
| FilingSummary.xml | 1746 | 2020-11-17 16:16:35 |
| Financial_Report.xlsx | 5427 | 2020-11-17 16:16:35 |
 image0a721.jpg | 19246 | 2020-11-17 16:16:35 |
| MetaLinks.json | 17333 | 2020-11-17 16:16:35 |
 newsreleaseimagea171.jpg | 117757 | 2020-11-17 16:16:35 |
| R1.htm | 38587 | 2020-11-17 16:16:35 |
 releasefootera221.jpg | 164136 | 2020-11-17 16:16:35 |
| report.css | 2767 | 2020-11-17 16:16:35 |
| Show.js | 1085 | 2020-11-17 16:16:35 |