| ceix-20200615.xsd | EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA |
| ceix-20200615_lab.xml | EX-101.LAB - XBRL TAXONOMY EXTENSION LABEL LINKBASE |
| ceix-20200615_pre.xml | EX-101.PRE - XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE |
| MetaLinks.json | JSON - IDEA: XBRL DOCUMENT |