Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001130310-20-000049-index-headers.html | 2020-05-18 18:25:15 | |
| 0001130310-20-000049-index.html | 2020-05-18 18:25:15 | |
| 0001130310-20-000049.txt | 2020-05-18 18:25:15 | |
 0001130310-20-000049-xbrl.zip | 1024691 | 2020-05-18 18:25:15 |
| a8-k8012019recast.htm | 1536589 | 2020-05-18 18:25:15 |
| a8-k8012019recast_htm.xml | 14458852 | 2020-05-18 18:25:15 |
| cnp-20200518.xsd | 131382 | 2020-05-18 18:25:15 |
| cnp-20200518_cal.xml | 163431 | 2020-05-18 18:25:15 |
| cnp-20200518_def.xml | 1221333 | 2020-05-18 18:25:15 |
| cnp-20200518_lab.xml | 2092326 | 2020-05-18 18:25:15 |
| cnp-20200518_pre.xml | 1336811 | 2020-05-18 18:25:15 |
| cnpexhibit23.htm | 3613 | 2020-05-18 18:25:15 |
| exhibit991.htm | 9411943 | 2020-05-18 18:25:15 |
| FilingSummary.xml | 59857 | 2020-05-18 18:25:15 |
| Financial_Report.xlsx | 256199 | 2020-05-18 18:25:15 |
| MetaLinks.json | 1525313 | 2020-05-18 18:25:15 |
| R1.htm | 66429 | 2020-05-18 18:25:15 |
| R10.htm | 20274 | 2020-05-18 18:25:15 |
| R11.htm | 20335 | 2020-05-18 18:25:15 |
| R12.htm | 103038 | 2020-05-18 18:25:15 |
| R13.htm | 158102 | 2020-05-18 18:25:15 |
| R14.htm | 363440 | 2020-05-18 18:25:15 |
| R15.htm | 176928 | 2020-05-18 18:25:15 |
| R16.htm | 89510 | 2020-05-18 18:25:15 |
| R17.htm | 167159 | 2020-05-18 18:25:15 |
| R18.htm | 431839 | 2020-05-18 18:25:15 |
| R19.htm | 809638 | 2020-05-18 18:25:15 |
| R2.htm | 120137 | 2020-05-18 18:25:15 |
| R20.htm | 358743 | 2020-05-18 18:25:15 |
| R21.htm | 69450 | 2020-05-18 18:25:15 |
| R22.htm | 185868 | 2020-05-18 18:25:15 |
| R23.htm | 218654 | 2020-05-18 18:25:15 |
| R24.htm | 275340 | 2020-05-18 18:25:15 |
| R25.htm | 342135 | 2020-05-18 18:25:15 |
| R26.htm | 64485 | 2020-05-18 18:25:15 |
| R27.htm | 61191 | 2020-05-18 18:25:15 |
| R28.htm | 128644 | 2020-05-18 18:25:15 |
| R29.htm | 422957 | 2020-05-18 18:25:15 |
| R3.htm | 7206 | 2020-05-18 18:25:15 |
| R30.htm | 84110 | 2020-05-18 18:25:15 |
| R31.htm | 69059 | 2020-05-18 18:25:15 |
| R32.htm | 129673 | 2020-05-18 18:25:15 |
| R33.htm | 31005 | 2020-05-18 18:25:15 |
| R34.htm | 154895 | 2020-05-18 18:25:15 |
| R35.htm | 9975 | 2020-05-18 18:25:15 |
| R36.htm | 68478 | 2020-05-18 18:25:15 |
| R37.htm | 158298 | 2020-05-18 18:25:15 |
| R38.htm | 434487 | 2020-05-18 18:25:15 |
| R39.htm | 171834 | 2020-05-18 18:25:15 |
| R4.htm | 37427 | 2020-05-18 18:25:15 |
| R40.htm | 87024 | 2020-05-18 18:25:15 |
| R41.htm | 140911 | 2020-05-18 18:25:15 |
| R42.htm | 436159 | 2020-05-18 18:25:15 |
| R43.htm | 880462 | 2020-05-18 18:25:15 |
| R44.htm | 355682 | 2020-05-18 18:25:15 |
| R45.htm | 63223 | 2020-05-18 18:25:15 |
| R46.htm | 182581 | 2020-05-18 18:25:15 |
| R47.htm | 217940 | 2020-05-18 18:25:15 |
| R48.htm | 270802 | 2020-05-18 18:25:15 |
| R49.htm | 342379 | 2020-05-18 18:25:15 |
| R5.htm | 12760 | 2020-05-18 18:25:15 |
| R50.htm | 29482 | 2020-05-18 18:25:15 |
| R51.htm | 61751 | 2020-05-18 18:25:15 |
| R52.htm | 128931 | 2020-05-18 18:25:15 |
| R53.htm | 416967 | 2020-05-18 18:25:15 |
| R54.htm | 123288 | 2020-05-18 18:25:15 |
| R55.htm | 68343 | 2020-05-18 18:25:15 |
| R56.htm | 134117 | 2020-05-18 18:25:15 |
| R57.htm | 31296 | 2020-05-18 18:25:15 |
| R58.htm | 24556 | 2020-05-18 18:25:15 |
| R59.htm | 24046 | 2020-05-18 18:25:15 |
| R6.htm | 174311 | 2020-05-18 18:25:15 |
| R60.htm | 91467 | 2020-05-18 18:25:15 |
| R61.htm | 170458 | 2020-05-18 18:25:15 |
| R62.htm | 28397 | 2020-05-18 18:25:15 |
| R63.htm | 276453 | 2020-05-18 18:25:15 |
| R64.htm | 69148 | 2020-05-18 18:25:15 |
| R65.htm | 41612 | 2020-05-18 18:25:15 |
| R66.htm | 16093 | 2020-05-18 18:25:15 |
| R67.htm | 79502 | 2020-05-18 18:25:15 |
| R68.htm | 85462 | 2020-05-18 18:25:15 |
| R69.htm | 28367 | 2020-05-18 18:25:15 |
| R7.htm | 52261 | 2020-05-18 18:25:15 |
| R70.htm | 43032 | 2020-05-18 18:25:15 |
| R71.htm | 158120 | 2020-05-18 18:25:15 |
| R72.htm | 66001 | 2020-05-18 18:25:15 |
| R73.htm | 253289 | 2020-05-18 18:25:15 |
| R74.htm | 52925 | 2020-05-18 18:25:15 |
| R75.htm | 232166 | 2020-05-18 18:25:15 |
| R76.htm | 50770 | 2020-05-18 18:25:15 |
| R77.htm | 204173 | 2020-05-18 18:25:15 |
| R78.htm | 70558 | 2020-05-18 18:25:15 |
| R79.htm | 171703 | 2020-05-18 18:25:15 |
| R8.htm | 184101 | 2020-05-18 18:25:15 |
| R80.htm | 227937 | 2020-05-18 18:25:15 |
| R81.htm | 97125 | 2020-05-18 18:25:15 |
| R82.htm | 227927 | 2020-05-18 18:25:15 |
| R83.htm | 201439 | 2020-05-18 18:25:15 |
| R84.htm | 13020 | 2020-05-18 18:25:15 |
| R85.htm | 74814 | 2020-05-18 18:25:15 |
| R86.htm | 88142 | 2020-05-18 18:25:15 |
| R87.htm | 58141 | 2020-05-18 18:25:15 |
| R88.htm | 209114 | 2020-05-18 18:25:15 |
| R89.htm | 81835 | 2020-05-18 18:25:15 |
| R9.htm | 117102 | 2020-05-18 18:25:15 |
| R90.htm | 51748 | 2020-05-18 18:25:15 |
| R91.htm | 43255 | 2020-05-18 18:25:15 |
| R92.htm | 128101 | 2020-05-18 18:25:15 |
| R93.htm | 88302 | 2020-05-18 18:25:15 |
| report.css | 2767 | 2020-05-18 18:25:15 |
| Show.js | 1085 | 2020-05-18 18:25:15 |