Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001130310-18-000023-index-headers.html | 2018-11-08 06:25:29 | |
| 0001130310-18-000023-index.html | 2018-11-08 06:25:29 | |
| 0001130310-18-000023.txt | 2018-11-08 06:25:29 | |
 0001130310-18-000023-xbrl.zip | 478608 | 2018-11-08 06:25:29 |
| cehe_exhibit3112x9302018.htm | 12981 | 2018-11-08 06:25:29 |
| cehe_exhibit3122x9302018.htm | 12732 | 2018-11-08 06:25:29 |
| cehe_exhibit3212x9302018.htm | 6025 | 2018-11-08 06:25:29 |
| cehe_exhibit3222x9302018.htm | 6035 | 2018-11-08 06:25:29 |
| cercexhibit3113_9302018.htm | 12133 | 2018-11-08 06:25:29 |
| cercexhibit3123_9302018.htm | 12284 | 2018-11-08 06:25:29 |
| cercexhibit3213_9302018.htm | 6537 | 2018-11-08 06:25:29 |
| cercexhibit3223_9302018.htm | 5789 | 2018-11-08 06:25:29 |
| cnp-20180930.xml | 6019501 | 2018-11-08 06:25:29 |
| cnp-20180930.xsd | 65001 | 2018-11-08 06:25:29 |
| cnp-20180930_cal.xml | 103370 | 2018-11-08 06:25:29 |
| cnp-20180930_def.xml | 595644 | 2018-11-08 06:25:29 |
| cnp-20180930_lab.xml | 1001719 | 2018-11-08 06:25:29 |
| cnp-20180930_pre.xml | 652780 | 2018-11-08 06:25:29 |
| cnp_10qx9302018combined.htm | 3778480 | 2018-11-08 06:25:29 |
| cnp_exhibit3111x9302018.htm | 12856 | 2018-11-08 06:25:29 |
| cnp_exhibit3121x9302018.htm | 12868 | 2018-11-08 06:25:29 |
| cnp_exhibit3211x9302018.htm | 5944 | 2018-11-08 06:25:29 |
| cnp_exhibit3221x9302018.htm | 5936 | 2018-11-08 06:25:29 |
| cnp_exhibit414x9302018.htm | 352498 | 2018-11-08 06:25:29 |
| FilingSummary.xml | 42272 | 2018-11-08 06:25:29 |
| Financial_Report.xlsx | 138308 | 2018-11-08 06:25:29 |
| R1.htm | 36469 | 2018-11-08 06:25:29 |
| R10.htm | 104238 | 2018-11-08 06:25:29 |
| R11.htm | 9918 | 2018-11-08 06:25:29 |
| R12.htm | 223023 | 2018-11-08 06:25:29 |
| R13.htm | 158153 | 2018-11-08 06:25:29 |
| R14.htm | 110428 | 2018-11-08 06:25:29 |
| R15.htm | 270329 | 2018-11-08 06:25:29 |
| R16.htm | 312642 | 2018-11-08 06:25:29 |
| R17.htm | 157761 | 2018-11-08 06:25:29 |
| R18.htm | 55620 | 2018-11-08 06:25:29 |
| R19.htm | 41649 | 2018-11-08 06:25:29 |
| R2.htm | 100917 | 2018-11-08 06:25:29 |
| R20.htm | 113025 | 2018-11-08 06:25:29 |
| R21.htm | 31783 | 2018-11-08 06:25:29 |
| R22.htm | 26314 | 2018-11-08 06:25:29 |
| R23.htm | 38365 | 2018-11-08 06:25:29 |
| R24.htm | 236294 | 2018-11-08 06:25:29 |
| R25.htm | 57542 | 2018-11-08 06:25:29 |
| R26.htm | 98924 | 2018-11-08 06:25:29 |
| R27.htm | 58528 | 2018-11-08 06:25:29 |
| R28.htm | 11535 | 2018-11-08 06:25:29 |
| R29.htm | 104858 | 2018-11-08 06:25:29 |
| R3.htm | 6948 | 2018-11-08 06:25:29 |
| R30.htm | 214594 | 2018-11-08 06:25:29 |
| R31.htm | 161348 | 2018-11-08 06:25:29 |
| R32.htm | 110004 | 2018-11-08 06:25:29 |
| R33.htm | 270962 | 2018-11-08 06:25:29 |
| R34.htm | 312612 | 2018-11-08 06:25:29 |
| R35.htm | 158349 | 2018-11-08 06:25:29 |
| R36.htm | 55517 | 2018-11-08 06:25:29 |
| R37.htm | 34958 | 2018-11-08 06:25:29 |
| R38.htm | 105691 | 2018-11-08 06:25:29 |
| R39.htm | 30646 | 2018-11-08 06:25:29 |
| R4.htm | 22576 | 2018-11-08 06:25:29 |
| R40.htm | 10359 | 2018-11-08 06:25:29 |
| R41.htm | 38340 | 2018-11-08 06:25:29 |
| R42.htm | 262638 | 2018-11-08 06:25:29 |
| R43.htm | 56657 | 2018-11-08 06:25:29 |
| R44.htm | 97795 | 2018-11-08 06:25:29 |
| R45.htm | 26699 | 2018-11-08 06:25:29 |
| R46.htm | 20843 | 2018-11-08 06:25:29 |
| R47.htm | 22269 | 2018-11-08 06:25:29 |
| R48.htm | 20592 | 2018-11-08 06:25:29 |
| R49.htm | 74462 | 2018-11-08 06:25:29 |
| R5.htm | 8482 | 2018-11-08 06:25:29 |
| R50.htm | 69666 | 2018-11-08 06:25:29 |
| R51.htm | 81334 | 2018-11-08 06:25:29 |
| R52.htm | 51498 | 2018-11-08 06:25:29 |
| R53.htm | 136633 | 2018-11-08 06:25:29 |
| R54.htm | 200603 | 2018-11-08 06:25:29 |
| R55.htm | 212954 | 2018-11-08 06:25:29 |
| R56.htm | 39065 | 2018-11-08 06:25:29 |
| R57.htm | 53624 | 2018-11-08 06:25:29 |
| R58.htm | 128454 | 2018-11-08 06:25:29 |
| R59.htm | 29005 | 2018-11-08 06:25:29 |
| R6.htm | 185284 | 2018-11-08 06:25:29 |
| R60.htm | 30993 | 2018-11-08 06:25:29 |
| R61.htm | 23989 | 2018-11-08 06:25:29 |
| R62.htm | 113875 | 2018-11-08 06:25:29 |
| R63.htm | 35599 | 2018-11-08 06:25:29 |
| R64.htm | 42671 | 2018-11-08 06:25:29 |
| R65.htm | 95373 | 2018-11-08 06:25:29 |
| R66.htm | 54792 | 2018-11-08 06:25:29 |
| R7.htm | 40822 | 2018-11-08 06:25:29 |
| R8.htm | 166799 | 2018-11-08 06:25:29 |
| R9.htm | 16274 | 2018-11-08 06:25:29 |
| report.css | 2767 | 2018-11-08 06:25:29 |
| Show.js | 1085 | 2018-11-08 06:25:29 |