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|---|---|---|
 0001704715-20-000037-index-headers.html | 2020-08-07 07:46:05 | |
| 0001704715-20-000037-index.html | 2020-08-07 07:46:05 | |
| 0001704715-20-000037.txt | 2020-08-07 07:46:05 | |
 0001704715-20-000037-xbrl.zip | 60882 | 2020-08-07 07:46:05 |
| ctra-20200807.htm | 46419 | 2020-08-07 07:46:05 |
| ctra-20200807.xsd | 2438 | 2020-08-07 07:46:05 |
| ctra-20200807_cal.xml | 720 | 2020-08-07 07:46:05 |
| ctra-20200807_def.xml | 1653 | 2020-08-07 07:46:05 |
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| ctra-20200807_lab.xml | 23970 | 2020-08-07 07:46:05 |
| ctra-20200807_pre.xml | 12656 | 2020-08-07 07:46:05 |
| FilingSummary.xml | 1722 | 2020-08-07 07:46:05 |
| Financial_Report.xlsx | 5430 | 2020-08-07 07:46:05 |
 image0a721.jpg | 19246 | 2020-08-07 07:46:05 |
| MetaLinks.json | 17333 | 2020-08-07 07:46:05 |
 newsreleaseimagea171.jpg | 117757 | 2020-08-07 07:46:05 |
| pressrelease063020.htm | 1732934 | 2020-08-07 07:46:05 |
| R1.htm | 38588 | 2020-08-07 07:46:05 |
 releasefootera221.jpg | 164136 | 2020-08-07 07:46:05 |
| report.css | 2767 | 2020-08-07 07:46:05 |
| Show.js | 1085 | 2020-08-07 07:46:05 |