Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001725526-19-000062-index-headers.html | 2019-02-26 17:08:27 | |
| 0001725526-19-000062-index.html | 2019-02-26 17:08:27 | |
| 0001725526-19-000062.txt | 2019-02-26 17:08:27 | |
 0001725526-19-000062-xbrl.zip | 378145 | 2019-02-26 17:08:27 |
 chart-5d5ef2c9f6935f1683fa02.jpg | 81715 | 2019-02-26 17:08:27 |
| FilingSummary.xml | 49905 | 2019-02-26 17:08:27 |
| Financial_Report.xlsx | 126073 | 2019-02-26 17:08:27 |
 hplogo3a10.jpg | 80255 | 2019-02-26 17:08:27 |
| hpr-12312018x10xk.htm | 3490095 | 2019-02-26 17:08:27 |
| hpr-12312018xex105b.htm | 34950 | 2019-02-26 17:08:27 |
| hpr-12312018xex211.htm | 3071 | 2019-02-26 17:08:27 |
| hpr-12312018xex231.htm | 3584 | 2019-02-26 17:08:27 |
| hpr-12312018xex232.htm | 7336 | 2019-02-26 17:08:27 |
| hpr-12312018xex311.htm | 11998 | 2019-02-26 17:08:27 |
| hpr-12312018xex312.htm | 11645 | 2019-02-26 17:08:27 |
| hpr-12312018xex32.htm | 8467 | 2019-02-26 17:08:27 |
| hpr-12312018xex991nsai.htm | 66949 | 2019-02-26 17:08:27 |
| hpr-12312018xex992.htm | 20133 | 2019-02-26 17:08:27 |
| hpr-20181231.xml | 3625276 | 2019-02-26 17:08:27 |
| hpr-20181231.xsd | 107826 | 2019-02-26 17:08:27 |
| hpr-20181231_cal.xml | 146093 | 2019-02-26 17:08:27 |
| hpr-20181231_def.xml | 480043 | 2019-02-26 17:08:27 |
| hpr-20181231_lab.xml | 1102082 | 2019-02-26 17:08:27 |
| hpr-20181231_pre.xml | 706682 | 2019-02-26 17:08:27 |
 nsaiheader1.jpg | 19127 | 2019-02-26 17:08:27 |
 nsaiheader2015.jpg | 10481 | 2019-02-26 17:08:27 |
| R1.htm | 35649 | 2019-02-26 17:08:27 |
| R10.htm | 27336 | 2019-02-26 17:08:27 |
| R11.htm | 68901 | 2019-02-26 17:08:27 |
| R12.htm | 74387 | 2019-02-26 17:08:27 |
| R13.htm | 34112 | 2019-02-26 17:08:27 |
| R14.htm | 87953 | 2019-02-26 17:08:27 |
| R15.htm | 93582 | 2019-02-26 17:08:27 |
| R16.htm | 108725 | 2019-02-26 17:08:27 |
| R17.htm | 48276 | 2019-02-26 17:08:27 |
| R18.htm | 273395 | 2019-02-26 17:08:27 |
| R19.htm | 11150 | 2019-02-26 17:08:27 |
| R2.htm | 81677 | 2019-02-26 17:08:27 |
| R20.htm | 36426 | 2019-02-26 17:08:27 |
| R21.htm | 417193 | 2019-02-26 17:08:27 |
| R22.htm | 130101 | 2019-02-26 17:08:27 |
| R23.htm | 106062 | 2019-02-26 17:08:27 |
| R24.htm | 26491 | 2019-02-26 17:08:27 |
| R25.htm | 58249 | 2019-02-26 17:08:27 |
| R26.htm | 55637 | 2019-02-26 17:08:27 |
| R27.htm | 33608 | 2019-02-26 17:08:27 |
| R28.htm | 77014 | 2019-02-26 17:08:27 |
| R29.htm | 91493 | 2019-02-26 17:08:27 |
| R3.htm | 14590 | 2019-02-26 17:08:27 |
| R30.htm | 104377 | 2019-02-26 17:08:27 |
| R31.htm | 38233 | 2019-02-26 17:08:27 |
| R32.htm | 258450 | 2019-02-26 17:08:27 |
| R33.htm | 37199 | 2019-02-26 17:08:27 |
| R34.htm | 419426 | 2019-02-26 17:08:27 |
| R35.htm | 29865 | 2019-02-26 17:08:27 |
| R36.htm | 16355 | 2019-02-26 17:08:27 |
| R37.htm | 23471 | 2019-02-26 17:08:27 |
| R38.htm | 17272 | 2019-02-26 17:08:27 |
| R39.htm | 19864 | 2019-02-26 17:08:27 |
| R4.htm | 79480 | 2019-02-26 17:08:27 |
| R40.htm | 22305 | 2019-02-26 17:08:27 |
| R41.htm | 19419 | 2019-02-26 17:08:27 |
| R42.htm | 121108 | 2019-02-26 17:08:27 |
| R43.htm | 35701 | 2019-02-26 17:08:27 |
| R44.htm | 81178 | 2019-02-26 17:08:27 |
| R45.htm | 13800 | 2019-02-26 17:08:27 |
| R46.htm | 23229 | 2019-02-26 17:08:27 |
| R47.htm | 35659 | 2019-02-26 17:08:27 |
| R48.htm | 35781 | 2019-02-26 17:08:27 |
| R49.htm | 23531 | 2019-02-26 17:08:27 |
| R5.htm | 13882 | 2019-02-26 17:08:27 |
| R50.htm | 30777 | 2019-02-26 17:08:27 |
| R51.htm | 21644 | 2019-02-26 17:08:27 |
| R52.htm | 30712 | 2019-02-26 17:08:27 |
| R53.htm | 15515 | 2019-02-26 17:08:27 |
| R54.htm | 34140 | 2019-02-26 17:08:27 |
| R55.htm | 42219 | 2019-02-26 17:08:27 |
| R56.htm | 43895 | 2019-02-26 17:08:27 |
| R57.htm | 33797 | 2019-02-26 17:08:27 |
| R58.htm | 161233 | 2019-02-26 17:08:27 |
| R59.htm | 16507 | 2019-02-26 17:08:27 |
| R6.htm | 72822 | 2019-02-26 17:08:27 |
| R60.htm | 30380 | 2019-02-26 17:08:27 |
| R61.htm | 30474 | 2019-02-26 17:08:27 |
| R62.htm | 26527 | 2019-02-26 17:08:27 |
| R63.htm | 21915 | 2019-02-26 17:08:27 |
| R64.htm | 35413 | 2019-02-26 17:08:27 |
| R65.htm | 16777 | 2019-02-26 17:08:27 |
| R66.htm | 11154 | 2019-02-26 17:08:27 |
| R67.htm | 9159 | 2019-02-26 17:08:27 |
| R68.htm | 16521 | 2019-02-26 17:08:27 |
| R69.htm | 9838 | 2019-02-26 17:08:27 |
| R7.htm | 36878 | 2019-02-26 17:08:27 |
| R70.htm | 11097 | 2019-02-26 17:08:27 |
| R71.htm | 20668 | 2019-02-26 17:08:27 |
| R72.htm | 10558 | 2019-02-26 17:08:27 |
| R73.htm | 11958 | 2019-02-26 17:08:27 |
| R74.htm | 86092 | 2019-02-26 17:08:27 |
| R75.htm | 57316 | 2019-02-26 17:08:27 |
| R76.htm | 28239 | 2019-02-26 17:08:27 |
| R77.htm | 74730 | 2019-02-26 17:08:27 |
| R8.htm | 6555 | 2019-02-26 17:08:27 |
| R9.htm | 135739 | 2019-02-26 17:08:27 |
| report.css | 2768 | 2019-02-26 17:08:27 |
| Show.js | 1085 | 2019-02-26 17:08:27 |