Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-16-118693-index-headers.html | 2016-05-06 13:57:47 | |
| 0001104659-16-118693-index.html | 2016-05-06 13:57:47 | |
| 0001104659-16-118693.txt | 2016-05-06 13:57:47 | |
 0001104659-16-118693-xbrl.zip | 219886 | 2016-05-06 13:57:47 |
| a16-6982_110q.htm | 2319564 | 2016-05-06 13:57:47 |
| a16-6982_1ex10d2.htm | 11094 | 2016-05-06 13:57:47 |
| a16-6982_1ex31d1.htm | 10563 | 2016-05-06 13:57:47 |
| a16-6982_1ex31d2.htm | 11399 | 2016-05-06 13:57:47 |
| a16-6982_1ex32.htm | 6723 | 2016-05-06 13:57:47 |
| FilingSummary.xml | 36621 | 2016-05-06 13:57:47 |
| Financial_Report.xlsx | 81493 | 2016-05-06 13:57:47 |
| hp-20160331.xml | 4862146 | 2016-05-06 13:57:47 |
| hp-20160331.xsd | 44663 | 2016-05-06 13:57:47 |
| hp-20160331_cal.xml | 81908 | 2016-05-06 13:57:47 |
| hp-20160331_def.xml | 233450 | 2016-05-06 13:57:47 |
| hp-20160331_lab.xml | 534843 | 2016-05-06 13:57:47 |
| hp-20160331_pre.xml | 447212 | 2016-05-06 13:57:47 |
| R1.htm | 22216 | 2016-05-06 13:57:47 |
| R10.htm | 58341 | 2016-05-06 13:57:47 |
| R11.htm | 10009 | 2016-05-06 13:57:47 |
| R12.htm | 142507 | 2016-05-06 13:57:47 |
| R13.htm | 83681 | 2016-05-06 13:57:47 |
| R14.htm | 131040 | 2016-05-06 13:57:47 |
| R15.htm | 5332 | 2016-05-06 13:57:47 |
| R16.htm | 140132 | 2016-05-06 13:57:47 |
| R17.htm | 48898 | 2016-05-06 13:57:47 |
| R18.htm | 8264 | 2016-05-06 13:57:47 |
| R19.htm | 11198 | 2016-05-06 13:57:47 |
| R2.htm | 81863 | 2016-05-06 13:57:47 |
| R20.htm | 318667 | 2016-05-06 13:57:47 |
| R21.htm | 35882 | 2016-05-06 13:57:47 |
| R22.htm | 23866 | 2016-05-06 13:57:47 |
| R23.htm | 13357 | 2016-05-06 13:57:47 |
| R24.htm | 13264 | 2016-05-06 13:57:47 |
| R25.htm | 991201 | 2016-05-06 13:57:47 |
| R26.htm | 5760 | 2016-05-06 13:57:47 |
| R27.htm | 52211 | 2016-05-06 13:57:47 |
| R28.htm | 146699 | 2016-05-06 13:57:47 |
| R29.htm | 84881 | 2016-05-06 13:57:47 |
| R3.htm | 20829 | 2016-05-06 13:57:47 |
| R30.htm | 138381 | 2016-05-06 13:57:47 |
| R31.htm | 150273 | 2016-05-06 13:57:47 |
| R32.htm | 48903 | 2016-05-06 13:57:47 |
| R33.htm | 329949 | 2016-05-06 13:57:47 |
| R34.htm | 35483 | 2016-05-06 13:57:47 |
| R35.htm | 24659 | 2016-05-06 13:57:47 |
| R36.htm | 1030644 | 2016-05-06 13:57:47 |
| R37.htm | 55056 | 2016-05-06 13:57:47 |
| R38.htm | 7357 | 2016-05-06 13:57:47 |
| R39.htm | 73280 | 2016-05-06 13:57:47 |
| R4.htm | 96887 | 2016-05-06 13:57:47 |
| R40.htm | 20725 | 2016-05-06 13:57:47 |
| R41.htm | 47623 | 2016-05-06 13:57:47 |
| R42.htm | 28666 | 2016-05-06 13:57:47 |
| R43.htm | 22184 | 2016-05-06 13:57:47 |
| R44.htm | 13604 | 2016-05-06 13:57:47 |
| R45.htm | 7359 | 2016-05-06 13:57:47 |
| R46.htm | 96677 | 2016-05-06 13:57:47 |
| R47.htm | 24953 | 2016-05-06 13:57:47 |
| R48.htm | 67782 | 2016-05-06 13:57:47 |
| R49.htm | 9669 | 2016-05-06 13:57:47 |
| R5.htm | 19921 | 2016-05-06 13:57:47 |
| R50.htm | 5979 | 2016-05-06 13:57:47 |
| R51.htm | 58293 | 2016-05-06 13:57:47 |
| R52.htm | 40544 | 2016-05-06 13:57:47 |
| R53.htm | 15090 | 2016-05-06 13:57:47 |
| R54.htm | 10839 | 2016-05-06 13:57:47 |
| R55.htm | 18271 | 2016-05-06 13:57:47 |
| R56.htm | 7414 | 2016-05-06 13:57:47 |
| R57.htm | 68670 | 2016-05-06 13:57:47 |
| R58.htm | 36154 | 2016-05-06 13:57:47 |
| R59.htm | 141242 | 2016-05-06 13:57:47 |
| R6.htm | 8563 | 2016-05-06 13:57:47 |
| R60.htm | 72311 | 2016-05-06 13:57:47 |
| R61.htm | 7195 | 2016-05-06 13:57:47 |
| R7.htm | 99481 | 2016-05-06 13:57:47 |
| R8.htm | 46596 | 2016-05-06 13:57:47 |
| R9.htm | 5156 | 2016-05-06 13:57:47 |
| report.css | 2767 | 2016-05-06 13:57:47 |
| Show.js | 1410 | 2016-05-06 13:57:47 |