Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-15-007304-index-headers.html | 2015-02-06 11:35:19 | |
| 0001104659-15-007304-index.html | 2015-02-06 11:35:19 | |
| 0001104659-15-007304.txt | 2015-02-06 11:35:19 | |
 0001104659-15-007304-xbrl.zip | 111136 | 2015-02-06 11:35:19 |
| a14-26013_110q.htm | 1116044 | 2015-02-06 11:35:19 |
| a14-26013_1ex10d1.htm | 19174 | 2015-02-06 11:35:19 |
| a14-26013_1ex10d2.htm | 19753 | 2015-02-06 11:35:19 |
| a14-26013_1ex10d3.htm | 19627 | 2015-02-06 11:35:19 |
| a14-26013_1ex10d4.htm | 20259 | 2015-02-06 11:35:19 |
| a14-26013_1ex10d5.htm | 40272 | 2015-02-06 11:35:19 |
| a14-26013_1ex31d1.htm | 12302 | 2015-02-06 11:35:19 |
| a14-26013_1ex31d2.htm | 12010 | 2015-02-06 11:35:19 |
| a14-26013_1ex32.htm | 6916 | 2015-02-06 11:35:19 |
| FilingSummary.xml | 25101 | 2015-02-06 11:35:19 |
| Financial_Report.xls | 1194575 | 2015-02-06 11:35:19 |
| Financial_Report.xlsx | 130984 | 2015-02-06 11:35:19 |
| hp-20141231.xml | 1296066 | 2015-02-06 11:35:19 |
| hp-20141231.xsd | 34400 | 2015-02-06 11:35:19 |
| hp-20141231_cal.xml | 66336 | 2015-02-06 11:35:19 |
| hp-20141231_def.xml | 140956 | 2015-02-06 11:35:19 |
| hp-20141231_lab.xml | 446335 | 2015-02-06 11:35:19 |
| hp-20141231_pre.xml | 318494 | 2015-02-06 11:35:19 |
| R1.htm | 30008 | 2015-02-06 11:35:19 |
| R10.htm | 10944 | 2015-02-06 11:35:19 |
| R11.htm | 10159 | 2015-02-06 11:35:19 |
| R12.htm | 73534 | 2015-02-06 11:35:19 |
| R13.htm | 79528 | 2015-02-06 11:35:19 |
| R14.htm | 72771 | 2015-02-06 11:35:19 |
| R15.htm | 12322 | 2015-02-06 11:35:19 |
| R16.htm | 93503 | 2015-02-06 11:35:19 |
| R17.htm | 27581 | 2015-02-06 11:35:19 |
| R18.htm | 9820 | 2015-02-06 11:35:19 |
| R19.htm | 12703 | 2015-02-06 11:35:19 |
| R2.htm | 124001 | 2015-02-06 11:35:19 |
| R20.htm | 158450 | 2015-02-06 11:35:19 |
| R21.htm | 25252 | 2015-02-06 11:35:19 |
| R22.htm | 21160 | 2015-02-06 11:35:19 |
| R23.htm | 9485 | 2015-02-06 11:35:19 |
| R24.htm | 11327 | 2015-02-06 11:35:19 |
| R25.htm | 7407 | 2015-02-06 11:35:19 |
| R26.htm | 72271 | 2015-02-06 11:35:19 |
| R27.htm | 74756 | 2015-02-06 11:35:19 |
| R28.htm | 71671 | 2015-02-06 11:35:19 |
| R29.htm | 95571 | 2015-02-06 11:35:19 |
| R3.htm | 30727 | 2015-02-06 11:35:19 |
| R30.htm | 27376 | 2015-02-06 11:35:19 |
| R31.htm | 167685 | 2015-02-06 11:35:19 |
| R32.htm | 21765 | 2015-02-06 11:35:19 |
| R33.htm | 21298 | 2015-02-06 11:35:19 |
| R34.htm | 88790 | 2015-02-06 11:35:19 |
| R35.htm | 23742 | 2015-02-06 11:35:19 |
| R36.htm | 45116 | 2015-02-06 11:35:19 |
| R37.htm | 37639 | 2015-02-06 11:35:19 |
| R38.htm | 27592 | 2015-02-06 11:35:19 |
| R39.htm | 21152 | 2015-02-06 11:35:19 |
| R4.htm | 122080 | 2015-02-06 11:35:19 |
| R40.htm | 10463 | 2015-02-06 11:35:19 |
| R41.htm | 163402 | 2015-02-06 11:35:19 |
| R42.htm | 93422 | 2015-02-06 11:35:19 |
| R43.htm | 21036 | 2015-02-06 11:35:19 |
| R44.htm | 8251 | 2015-02-06 11:35:19 |
| R45.htm | 85373 | 2015-02-06 11:35:19 |
| R46.htm | 54187 | 2015-02-06 11:35:19 |
| R47.htm | 17182 | 2015-02-06 11:35:19 |
| R48.htm | 15829 | 2015-02-06 11:35:19 |
| R49.htm | 17938 | 2015-02-06 11:35:19 |
| R5.htm | 26555 | 2015-02-06 11:35:19 |
| R6.htm | 11462 | 2015-02-06 11:35:19 |
| R7.htm | 113660 | 2015-02-06 11:35:19 |
| R8.htm | 71195 | 2015-02-06 11:35:19 |
| R9.htm | 7237 | 2015-02-06 11:35:19 |
| report.css | 2740 | 2015-02-06 11:35:19 |
| Show.js | 1410 | 2015-02-06 11:35:19 |