Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000225648-16-000180-index-headers.html | 2016-04-27 16:37:19 | |
| 0000225648-16-000180-index.html | 2016-04-27 16:37:19 | |
| 0000225648-16-000180.txt | 2016-04-27 16:37:19 | |
 0000225648-16-000180-xbrl.zip | 166801 | 2016-04-27 16:37:19 |
| cva-20160331.xml | 972806 | 2016-04-27 16:37:19 |
| cva-20160331.xsd | 50432 | 2016-04-27 16:37:19 |
| cva-20160331_cal.xml | 67522 | 2016-04-27 16:37:19 |
| cva-20160331_def.xml | 282840 | 2016-04-27 16:37:19 |
| cva-20160331_lab.xml | 568133 | 2016-04-27 16:37:19 |
| cva-20160331_pre.xml | 324001 | 2016-04-27 16:37:19 |
| cva-33116x10q.htm | 1137215 | 2016-04-27 16:37:19 |
| ex311-3311610q.htm | 13161 | 2016-04-27 16:37:19 |
| ex312-33116x10q.htm | 13045 | 2016-04-27 16:37:19 |
| ex32-33116x10q.htm | 10705 | 2016-04-27 16:37:19 |
| FilingSummary.xml | 27301 | 2016-04-27 16:37:19 |
| Financial_Report.xlsx | 59380 | 2016-04-27 16:37:19 |
| R1.htm | 22063 | 2016-04-27 16:37:19 |
| R10.htm | 14644 | 2016-04-27 16:37:19 |
| R11.htm | 68396 | 2016-04-27 16:37:19 |
| R12.htm | 34328 | 2016-04-27 16:37:19 |
| R13.htm | 93566 | 2016-04-27 16:37:19 |
| R14.htm | 7150 | 2016-04-27 16:37:19 |
| R15.htm | 5566 | 2016-04-27 16:37:19 |
| R16.htm | 14845 | 2016-04-27 16:37:19 |
| R17.htm | 96869 | 2016-04-27 16:37:19 |
| R18.htm | 38426 | 2016-04-27 16:37:19 |
| R19.htm | 37675 | 2016-04-27 16:37:19 |
| R2.htm | 63521 | 2016-04-27 16:37:19 |
| R20.htm | 35587 | 2016-04-27 16:37:19 |
| R21.htm | 65476 | 2016-04-27 16:37:19 |
| R22.htm | 31055 | 2016-04-27 16:37:19 |
| R23.htm | 88152 | 2016-04-27 16:37:19 |
| R24.htm | 9688 | 2016-04-27 16:37:19 |
| R25.htm | 88434 | 2016-04-27 16:37:19 |
| R26.htm | 24505 | 2016-04-27 16:37:19 |
| R27.htm | 22545 | 2016-04-27 16:37:19 |
| R28.htm | 24257 | 2016-04-27 16:37:19 |
| R29.htm | 38239 | 2016-04-27 16:37:19 |
| R3.htm | 16382 | 2016-04-27 16:37:19 |
| R30.htm | 21632 | 2016-04-27 16:37:19 |
| R31.htm | 64608 | 2016-04-27 16:37:19 |
| R32.htm | 6659 | 2016-04-27 16:37:19 |
| R33.htm | 17681 | 2016-04-27 16:37:19 |
| R34.htm | 73576 | 2016-04-27 16:37:19 |
| R35.htm | 33393 | 2016-04-27 16:37:19 |
| R36.htm | 4065 | 2016-04-27 16:37:19 |
| R37.htm | 4439 | 2016-04-27 16:37:19 |
| R38.htm | 5021 | 2016-04-27 16:37:19 |
| R39.htm | 4583 | 2016-04-27 16:37:19 |
| R4.htm | 5018 | 2016-04-27 16:37:19 |
| R40.htm | 20341 | 2016-04-27 16:37:19 |
| R41.htm | 14277 | 2016-04-27 16:37:19 |
| R42.htm | 64288 | 2016-04-27 16:37:19 |
| R43.htm | 16331 | 2016-04-27 16:37:19 |
| R44.htm | 57295 | 2016-04-27 16:37:19 |
| R45.htm | 36794 | 2016-04-27 16:37:19 |
| R5.htm | 92014 | 2016-04-27 16:37:19 |
| R6.htm | 21515 | 2016-04-27 16:37:19 |
| R7.htm | 85506 | 2016-04-27 16:37:19 |
| R8.htm | 13046 | 2016-04-27 16:37:19 |
| R9.htm | 12197 | 2016-04-27 16:37:19 |
| report.css | 2767 | 2016-04-27 16:37:19 |
| Show.js | 1410 | 2016-04-27 16:37:19 |