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| 0001130310-16-000031-index.html | 2016-02-26 06:32:43 | |
| 0001130310-16-000031.txt | 2016-02-26 06:32:43 | |
 0001130310-16-000031-xbrl.zip | 543222 | 2016-02-26 06:32:43 |
| cnp-20151231.xml | 5450443 | 2016-02-26 06:32:43 |
| cnp-20151231.xsd | 92109 | 2016-02-26 06:32:43 |
| cnp-20151231_cal.xml | 144410 | 2016-02-26 06:32:43 |
| cnp-20151231_def.xml | 824889 | 2016-02-26 06:32:43 |
| cnp-20151231_lab.xml | 1533001 | 2016-02-26 06:32:43 |
| cnp-20151231_pre.xml | 936960 | 2016-02-26 06:32:43 |
| cnp_10kx12312015.htm | 4185144 | 2016-02-26 06:32:43 |
| cnp_exhibit10ll2x12312015.htm | 37802 | 2016-02-26 06:32:43 |
| cnp_exhibit10ll3x12312015.htm | 42097 | 2016-02-26 06:32:43 |
| cnp_exhibit10ll5x12312015.htm | 37290 | 2016-02-26 06:32:43 |
| cnp_exhibit10ll7x12312015.htm | 40453 | 2016-02-26 06:32:43 |
| cnp_exhibit10mmx12312015.htm | 6541 | 2016-02-26 06:32:43 |
| cnp_exhibit10nnx12312015.htm | 14217 | 2016-02-26 06:32:43 |
| cnp_exhibit10sx12312015.htm | 5123 | 2016-02-26 06:32:43 |
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| cnp_exhibit21x12312015.htm | 4713 | 2016-02-26 06:32:43 |
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| cnp_exhibit3bx12312015.htm | 157704 | 2016-02-26 06:32:43 |
| FilingSummary.xml | 49589 | 2016-02-26 06:32:43 |
| Financial_Report.xlsx | 160650 | 2016-02-26 06:32:43 |
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| report.css | 2768 | 2016-02-26 06:32:43 |
| Show.js | 1411 | 2016-02-26 06:32:43 |