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|---|---|---|
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| 0000225648-17-000066-index.html | 2017-04-27 16:36:01 | |
| 0000225648-17-000066.txt | 2017-04-27 16:36:01 | |
 0000225648-17-000066-xbrl.zip | 172263 | 2017-04-27 16:36:01 |
| cva-033117x10q.htm | 1071629 | 2017-04-27 16:36:01 |
| cva-20170331.xml | 1008170 | 2017-04-27 16:36:01 |
| cva-20170331.xsd | 47151 | 2017-04-27 16:36:01 |
| cva-20170331_cal.xml | 64344 | 2017-04-27 16:36:01 |
| cva-20170331_def.xml | 311119 | 2017-04-27 16:36:01 |
| cva-20170331_lab.xml | 549784 | 2017-04-27 16:36:01 |
| cva-20170331_pre.xml | 351858 | 2017-04-27 16:36:01 |
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| ex32-033117x10q.htm | 10745 | 2017-04-27 16:36:01 |
| FilingSummary.xml | 29360 | 2017-04-27 16:36:01 |
| Financial_Report.xlsx | 66001 | 2017-04-27 16:36:01 |
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| report.css | 2767 | 2017-04-27 16:36:01 |
| Show.js | 1410 | 2017-04-27 16:36:01 |