Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001130310-19-000028-index-headers.html | 2019-08-07 06:35:14 | |
| 0001130310-19-000028-index.html | 2019-08-07 06:35:14 | |
| 0001130310-19-000028.txt | 2019-08-07 06:35:14 | |
 0001130310-19-000028-xbrl.zip | 664402 | 2019-08-07 06:35:14 |
| ceheexhibit31126302019.htm | 12977 | 2019-08-07 06:35:14 |
| ceheexhibit31226302019.htm | 12698 | 2019-08-07 06:35:14 |
| ceheexhibit32126302019.htm | 5986 | 2019-08-07 06:35:14 |
| ceheexhibit32226302019.htm | 5966 | 2019-08-07 06:35:14 |
| cercexhibit31136302019.htm | 12130 | 2019-08-07 06:35:14 |
| cercexhibit31236302019.htm | 12251 | 2019-08-07 06:35:14 |
| cercexhibit32136302019.htm | 6534 | 2019-08-07 06:35:14 |
| cercexhibit32236302019.htm | 5756 | 2019-08-07 06:35:14 |
| cnp-20190630.xsd | 77132 | 2019-08-07 06:35:14 |
| cnp-20190630_cal.xml | 102757 | 2019-08-07 06:35:14 |
| cnp-20190630_def.xml | 713026 | 2019-08-07 06:35:14 |
| cnp-20190630_lab.xml | 1254613 | 2019-08-07 06:35:14 |
| cnp-20190630_pre.xml | 803383 | 2019-08-07 06:35:14 |
| cnp10q6302019combined.htm | 7343987 | 2019-08-07 06:35:14 |
| cnp10q6302019combined_htm.xml | 8585458 | 2019-08-07 06:35:14 |
| cnpexhibit101offerlett.htm | 24181 | 2019-08-07 06:35:14 |
| cnpexhibit31116302019.htm | 12852 | 2019-08-07 06:35:14 |
| cnpexhibit31216302019.htm | 12834 | 2019-08-07 06:35:14 |
| cnpexhibit32116302019.htm | 5936 | 2019-08-07 06:35:14 |
| cnpexhibit32216302019.htm | 5897 | 2019-08-07 06:35:14 |
| cnpexhibit417firstamen.htm | 24437 | 2019-08-07 06:35:14 |
 cnplogo03.jpg | 22687 | 2019-08-07 06:35:14 |
| FilingSummary.xml | 49451 | 2019-08-07 06:35:14 |
| Financial_Report.xlsx | 172009 | 2019-08-07 06:35:14 |
| MetaLinks.json | 995921 | 2019-08-07 06:35:14 |
| R1.htm | 86730 | 2019-08-07 06:35:14 |
| R10.htm | 21067 | 2019-08-07 06:35:14 |
| R11.htm | 26146 | 2019-08-07 06:35:14 |
| R12.htm | 68949 | 2019-08-07 06:35:14 |
| R13.htm | 22319 | 2019-08-07 06:35:14 |
| R14.htm | 320324 | 2019-08-07 06:35:14 |
| R15.htm | 129315 | 2019-08-07 06:35:14 |
| R16.htm | 122129 | 2019-08-07 06:35:14 |
| R17.htm | 397642 | 2019-08-07 06:35:14 |
| R18.htm | 328677 | 2019-08-07 06:35:14 |
| R19.htm | 183030 | 2019-08-07 06:35:14 |
| R2.htm | 99221 | 2019-08-07 06:35:14 |
| R20.htm | 134916 | 2019-08-07 06:35:14 |
| R21.htm | 20375 | 2019-08-07 06:35:14 |
| R22.htm | 130437 | 2019-08-07 06:35:14 |
| R23.htm | 25915 | 2019-08-07 06:35:14 |
| R24.htm | 62475 | 2019-08-07 06:35:14 |
| R25.htm | 52958 | 2019-08-07 06:35:14 |
| R26.htm | 248804 | 2019-08-07 06:35:14 |
| R27.htm | 60340 | 2019-08-07 06:35:14 |
| R28.htm | 81717 | 2019-08-07 06:35:14 |
| R29.htm | 143124 | 2019-08-07 06:35:14 |
| R3.htm | 6927 | 2019-08-07 06:35:14 |
| R30.htm | 163403 | 2019-08-07 06:35:14 |
| R31.htm | 26665 | 2019-08-07 06:35:14 |
| R32.htm | 17387 | 2019-08-07 06:35:14 |
| R33.htm | 9658 | 2019-08-07 06:35:14 |
| R34.htm | 63961 | 2019-08-07 06:35:14 |
| R35.htm | 23244 | 2019-08-07 06:35:14 |
| R36.htm | 310687 | 2019-08-07 06:35:14 |
| R37.htm | 129213 | 2019-08-07 06:35:14 |
| R38.htm | 140020 | 2019-08-07 06:35:14 |
| R39.htm | 401948 | 2019-08-07 06:35:14 |
| R4.htm | 26895 | 2019-08-07 06:35:14 |
| R40.htm | 327059 | 2019-08-07 06:35:14 |
| R41.htm | 185030 | 2019-08-07 06:35:14 |
| R42.htm | 140120 | 2019-08-07 06:35:14 |
| R43.htm | 17756 | 2019-08-07 06:35:14 |
| R44.htm | 131378 | 2019-08-07 06:35:14 |
| R45.htm | 24695 | 2019-08-07 06:35:14 |
| R46.htm | 31955 | 2019-08-07 06:35:14 |
| R47.htm | 53144 | 2019-08-07 06:35:14 |
| R48.htm | 267092 | 2019-08-07 06:35:14 |
| R49.htm | 59655 | 2019-08-07 06:35:14 |
| R5.htm | 10521 | 2019-08-07 06:35:14 |
| R50.htm | 80405 | 2019-08-07 06:35:14 |
| R51.htm | 146540 | 2019-08-07 06:35:14 |
| R52.htm | 163905 | 2019-08-07 06:35:14 |
| R53.htm | 26885 | 2019-08-07 06:35:14 |
| R54.htm | 25830 | 2019-08-07 06:35:14 |
| R55.htm | 157134 | 2019-08-07 06:35:14 |
| R56.htm | 116884 | 2019-08-07 06:35:14 |
| R57.htm | 38881 | 2019-08-07 06:35:14 |
| R58.htm | 15094 | 2019-08-07 06:35:14 |
| R59.htm | 62365 | 2019-08-07 06:35:14 |
| R6.htm | 178145 | 2019-08-07 06:35:14 |
| R60.htm | 101877 | 2019-08-07 06:35:14 |
| R61.htm | 64417 | 2019-08-07 06:35:14 |
| R62.htm | 161785 | 2019-08-07 06:35:14 |
| R63.htm | 238331 | 2019-08-07 06:35:14 |
| R64.htm | 204522 | 2019-08-07 06:35:14 |
| R65.htm | 128185 | 2019-08-07 06:35:14 |
| R66.htm | 23505 | 2019-08-07 06:35:14 |
| R67.htm | 222756 | 2019-08-07 06:35:14 |
| R68.htm | 19513 | 2019-08-07 06:35:14 |
| R69.htm | 56841 | 2019-08-07 06:35:14 |
| R7.htm | 43661 | 2019-08-07 06:35:14 |
| R70.htm | 45515 | 2019-08-07 06:35:14 |
| R71.htm | 131008 | 2019-08-07 06:35:14 |
| R72.htm | 37571 | 2019-08-07 06:35:14 |
| R73.htm | 40026 | 2019-08-07 06:35:14 |
| R74.htm | 137554 | 2019-08-07 06:35:14 |
| R75.htm | 107573 | 2019-08-07 06:35:14 |
| R76.htm | 65060 | 2019-08-07 06:35:14 |
| R8.htm | 167462 | 2019-08-07 06:35:14 |
| R9.htm | 93860 | 2019-08-07 06:35:14 |
| report.css | 2768 | 2019-08-07 06:35:14 |
| Show.js | 1086 | 2019-08-07 06:35:14 |