Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-17-006417-index-headers.html | 2017-02-03 15:27:41 | |
| 0001104659-17-006417-index.html | 2017-02-03 15:27:41 | |
| 0001104659-17-006417.txt | 2017-02-03 15:27:41 | |
 0001104659-17-006417-xbrl.zip | 185056 | 2017-02-03 15:27:41 |
| a17-1267_110q.htm | 1767410 | 2017-02-03 15:27:41 |
| a17-1267_1ex31d1.htm | 10731 | 2017-02-03 15:27:41 |
| a17-1267_1ex31d2.htm | 10282 | 2017-02-03 15:27:41 |
| a17-1267_1ex32.htm | 6736 | 2017-02-03 15:27:41 |
| FilingSummary.xml | 35527 | 2017-02-03 15:27:41 |
| Financial_Report.xlsx | 75362 | 2017-02-03 15:27:41 |
| hp-20161231.xml | 3491366 | 2017-02-03 15:27:41 |
| hp-20161231.xsd | 43841 | 2017-02-03 15:27:41 |
| hp-20161231_cal.xml | 81688 | 2017-02-03 15:27:41 |
| hp-20161231_def.xml | 225177 | 2017-02-03 15:27:41 |
| hp-20161231_lab.xml | 516283 | 2017-02-03 15:27:41 |
| hp-20161231_pre.xml | 428668 | 2017-02-03 15:27:41 |
| R1.htm | 22216 | 2017-02-03 15:27:41 |
| R10.htm | 10924 | 2017-02-03 15:27:41 |
| R11.htm | 9184 | 2017-02-03 15:27:41 |
| R12.htm | 91820 | 2017-02-03 15:27:41 |
| R13.htm | 100289 | 2017-02-03 15:27:41 |
| R14.htm | 93966 | 2017-02-03 15:27:41 |
| R15.htm | 5165 | 2017-02-03 15:27:41 |
| R16.htm | 110536 | 2017-02-03 15:27:41 |
| R17.htm | 45464 | 2017-02-03 15:27:41 |
| R18.htm | 7935 | 2017-02-03 15:27:41 |
| R19.htm | 13243 | 2017-02-03 15:27:41 |
| R2.htm | 82240 | 2017-02-03 15:27:41 |
| R20.htm | 192305 | 2017-02-03 15:27:41 |
| R21.htm | 24625 | 2017-02-03 15:27:41 |
| R22.htm | 23604 | 2017-02-03 15:27:41 |
| R23.htm | 12834 | 2017-02-03 15:27:41 |
| R24.htm | 17930 | 2017-02-03 15:27:41 |
| R25.htm | 759710 | 2017-02-03 15:27:41 |
| R26.htm | 5820 | 2017-02-03 15:27:41 |
| R27.htm | 91275 | 2017-02-03 15:27:41 |
| R28.htm | 97903 | 2017-02-03 15:27:41 |
| R29.htm | 94292 | 2017-02-03 15:27:41 |
| R3.htm | 19269 | 2017-02-03 15:27:41 |
| R30.htm | 110675 | 2017-02-03 15:27:41 |
| R31.htm | 45633 | 2017-02-03 15:27:41 |
| R32.htm | 191499 | 2017-02-03 15:27:41 |
| R33.htm | 24365 | 2017-02-03 15:27:41 |
| R34.htm | 24018 | 2017-02-03 15:27:41 |
| R35.htm | 771220 | 2017-02-03 15:27:41 |
| R36.htm | 8715 | 2017-02-03 15:27:41 |
| R37.htm | 61185 | 2017-02-03 15:27:41 |
| R38.htm | 15827 | 2017-02-03 15:27:41 |
| R39.htm | 55472 | 2017-02-03 15:27:41 |
| R4.htm | 87752 | 2017-02-03 15:27:41 |
| R40.htm | 24750 | 2017-02-03 15:27:41 |
| R41.htm | 22602 | 2017-02-03 15:27:41 |
| R42.htm | 18228 | 2017-02-03 15:27:41 |
| R43.htm | 6955 | 2017-02-03 15:27:41 |
| R44.htm | 83656 | 2017-02-03 15:27:41 |
| R45.htm | 36840 | 2017-02-03 15:27:41 |
| R46.htm | 53119 | 2017-02-03 15:27:41 |
| R47.htm | 9192 | 2017-02-03 15:27:41 |
| R48.htm | 16263 | 2017-02-03 15:27:41 |
| R49.htm | 52634 | 2017-02-03 15:27:41 |
| R5.htm | 18795 | 2017-02-03 15:27:41 |
| R50.htm | 36193 | 2017-02-03 15:27:41 |
| R51.htm | 11674 | 2017-02-03 15:27:41 |
| R52.htm | 10839 | 2017-02-03 15:27:41 |
| R53.htm | 17399 | 2017-02-03 15:27:41 |
| R54.htm | 10327 | 2017-02-03 15:27:41 |
| R55.htm | 61601 | 2017-02-03 15:27:41 |
| R56.htm | 33003 | 2017-02-03 15:27:41 |
| R57.htm | 140885 | 2017-02-03 15:27:41 |
| R58.htm | 64137 | 2017-02-03 15:27:41 |
| R59.htm | 9901 | 2017-02-03 15:27:41 |
| R6.htm | 8199 | 2017-02-03 15:27:41 |
| R7.htm | 87059 | 2017-02-03 15:27:41 |
| R8.htm | 42783 | 2017-02-03 15:27:41 |
| R9.htm | 4840 | 2017-02-03 15:27:41 |
| report.css | 2767 | 2017-02-03 15:27:41 |
| Show.js | 1410 | 2017-02-03 15:27:41 |