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| 0001193125-19-066503-index.html | 2019-03-07 09:01:34 | |
| 0001193125-19-066503.txt | 2019-03-07 09:01:34 | |
 0001193125-19-066503-xbrl.zip | 106435 | 2019-03-07 09:01:34 |
| d668655d10k.htm | 883638 | 2019-03-07 09:01:34 |
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| d668655dex321.htm | 3384 | 2019-03-07 09:01:34 |
| d668655dex322.htm | 3390 | 2019-03-07 09:01:34 |
| FilingSummary.xml | 18384 | 2019-03-07 09:01:34 |
| Financial_Report.xlsx | 43646 | 2019-03-07 09:01:34 |
| hppi-20181231.xml | 1054830 | 2019-03-07 09:01:34 |
| hppi-20181231.xsd | 33699 | 2019-03-07 09:01:34 |
| hppi-20181231_cal.xml | 24059 | 2019-03-07 09:01:34 |
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| hppi-20181231_lab.xml | 288621 | 2019-03-07 09:01:34 |
| hppi-20181231_pre.xml | 232288 | 2019-03-07 09:01:34 |
| R1.htm | 35736 | 2019-03-07 09:01:34 |
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| R8.htm | 19854 | 2019-03-07 09:01:34 |
| R9.htm | 23796 | 2019-03-07 09:01:34 |
| report.css | 2767 | 2019-03-07 09:01:34 |
| Show.js | 1085 | 2019-03-07 09:01:34 |