Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-16-012604-index-headers.html | 2016-02-10 16:53:13 | |
| 0001564590-16-012604-index.html | 2016-02-10 16:53:13 | |
| 0001564590-16-012604.txt | 2016-02-10 16:53:13 | |
 0001564590-16-012604-xbrl.zip | 248664 | 2016-02-10 16:53:13 |
| FilingSummary.xml | 60015 | 2016-02-10 16:53:13 |
| Financial_Report.xlsx | 124212 | 2016-02-10 16:53:13 |
 g201602101549225383243.jpg | 4114 | 2016-02-10 16:53:13 |
 g201602101549588132711.jpg | 24642 | 2016-02-10 16:53:13 |
| pten-10k_20151231.htm | 5332960 | 2016-02-10 16:53:13 |
| pten-20151231.xml | 4481125 | 2016-02-10 16:53:13 |
| pten-20151231.xsd | 94619 | 2016-02-10 16:53:13 |
| pten-20151231_cal.xml | 72974 | 2016-02-10 16:53:13 |
| pten-20151231_def.xml | 344655 | 2016-02-10 16:53:13 |
| pten-20151231_lab.xml | 661538 | 2016-02-10 16:53:13 |
| pten-20151231_pre.xml | 579513 | 2016-02-10 16:53:13 |
| pten-ex211_6.htm | 18022 | 2016-02-10 16:53:13 |
| pten-ex231_10.htm | 2160 | 2016-02-10 16:53:13 |
| pten-ex311_8.htm | 8064 | 2016-02-10 16:53:13 |
| pten-ex312_7.htm | 8346 | 2016-02-10 16:53:13 |
| pten-ex321_9.htm | 8255 | 2016-02-10 16:53:13 |
| pten-ex991_1072.htm | 88962 | 2016-02-10 16:53:13 |
| R1.htm | 29989 | 2016-02-10 16:53:13 |
| R10.htm | 136454 | 2016-02-10 16:53:13 |
| R11.htm | 38018 | 2016-02-10 16:53:13 |
| R12.htm | 79032 | 2016-02-10 16:53:13 |
| R13.htm | 98770 | 2016-02-10 16:53:13 |
| R14.htm | 33066 | 2016-02-10 16:53:13 |
| R15.htm | 30672 | 2016-02-10 16:53:13 |
| R16.htm | 45398 | 2016-02-10 16:53:13 |
| R17.htm | 18620 | 2016-02-10 16:53:13 |
| R18.htm | 162407 | 2016-02-10 16:53:13 |
| R19.htm | 373431 | 2016-02-10 16:53:13 |
| R2.htm | 79569 | 2016-02-10 16:53:13 |
| R20.htm | 22817 | 2016-02-10 16:53:13 |
| R21.htm | 432666 | 2016-02-10 16:53:13 |
| R22.htm | 6085 | 2016-02-10 16:53:13 |
| R23.htm | 228327 | 2016-02-10 16:53:13 |
| R24.htm | 33216 | 2016-02-10 16:53:13 |
| R25.htm | 70368 | 2016-02-10 16:53:13 |
| R26.htm | 114298 | 2016-02-10 16:53:13 |
| R27.htm | 83111 | 2016-02-10 16:53:13 |
| R28.htm | 168009 | 2016-02-10 16:53:13 |
| R29.htm | 117144 | 2016-02-10 16:53:13 |
| R3.htm | 23029 | 2016-02-10 16:53:13 |
| R30.htm | 34653 | 2016-02-10 16:53:13 |
| R31.htm | 61700 | 2016-02-10 16:53:13 |
| R32.htm | 85252 | 2016-02-10 16:53:13 |
| R33.htm | 32529 | 2016-02-10 16:53:13 |
| R34.htm | 29666 | 2016-02-10 16:53:13 |
| R35.htm | 20821 | 2016-02-10 16:53:13 |
| R36.htm | 157761 | 2016-02-10 16:53:13 |
| R37.htm | 380688 | 2016-02-10 16:53:13 |
| R38.htm | 20895 | 2016-02-10 16:53:13 |
| R39.htm | 428877 | 2016-02-10 16:53:13 |
| R4.htm | 80641 | 2016-02-10 16:53:13 |
| R40.htm | 221122 | 2016-02-10 16:53:13 |
| R41.htm | 29748 | 2016-02-10 16:53:13 |
| R42.htm | 66717 | 2016-02-10 16:53:13 |
| R43.htm | 112961 | 2016-02-10 16:53:13 |
| R44.htm | 14646 | 2016-02-10 16:53:13 |
| R45.htm | 3974 | 2016-02-10 16:53:13 |
| R46.htm | 37109 | 2016-02-10 16:53:13 |
| R47.htm | 14747 | 2016-02-10 16:53:13 |
| R48.htm | 13920 | 2016-02-10 16:53:13 |
| R49.htm | 10669 | 2016-02-10 16:53:13 |
| R5.htm | 13656 | 2016-02-10 16:53:13 |
| R50.htm | 18540 | 2016-02-10 16:53:13 |
| R51.htm | 10708 | 2016-02-10 16:53:13 |
| R52.htm | 34447 | 2016-02-10 16:53:13 |
| R53.htm | 12102 | 2016-02-10 16:53:13 |
| R54.htm | 35060 | 2016-02-10 16:53:13 |
| R55.htm | 9815 | 2016-02-10 16:53:13 |
| R56.htm | 19560 | 2016-02-10 16:53:13 |
| R57.htm | 13774 | 2016-02-10 16:53:13 |
| R58.htm | 149851 | 2016-02-10 16:53:13 |
| R59.htm | 65457 | 2016-02-10 16:53:13 |
| R6.htm | 5246 | 2016-02-10 16:53:13 |
| R60.htm | 15369 | 2016-02-10 16:53:13 |
| R61.htm | 51886 | 2016-02-10 16:53:13 |
| R62.htm | 43570 | 2016-02-10 16:53:13 |
| R63.htm | 22521 | 2016-02-10 16:53:13 |
| R64.htm | 20078 | 2016-02-10 16:53:13 |
| R65.htm | 12771 | 2016-02-10 16:53:13 |
| R66.htm | 40586 | 2016-02-10 16:53:13 |
| R67.htm | 13297 | 2016-02-10 16:53:13 |
| R68.htm | 25452 | 2016-02-10 16:53:13 |
| R69.htm | 9309 | 2016-02-10 16:53:13 |
| R7.htm | 65037 | 2016-02-10 16:53:13 |
| R70.htm | 11677 | 2016-02-10 16:53:13 |
| R71.htm | 24662 | 2016-02-10 16:53:13 |
| R72.htm | 9782 | 2016-02-10 16:53:13 |
| R73.htm | 20234 | 2016-02-10 16:53:13 |
| R74.htm | 15153 | 2016-02-10 16:53:13 |
| R75.htm | 12954 | 2016-02-10 16:53:13 |
| R76.htm | 16683 | 2016-02-10 16:53:13 |
| R77.htm | 19430 | 2016-02-10 16:53:13 |
| R78.htm | 4499 | 2016-02-10 16:53:13 |
| R79.htm | 19250 | 2016-02-10 16:53:13 |
| R8.htm | 100827 | 2016-02-10 16:53:13 |
| R80.htm | 41027 | 2016-02-10 16:53:13 |
| R81.htm | 15115 | 2016-02-10 16:53:13 |
| R82.htm | 75241 | 2016-02-10 16:53:13 |
| R83.htm | 59989 | 2016-02-10 16:53:13 |
| R84.htm | 4600 | 2016-02-10 16:53:13 |
| R85.htm | 26862 | 2016-02-10 16:53:13 |
| R86.htm | 23596 | 2016-02-10 16:53:13 |
| R87.htm | 37423 | 2016-02-10 16:53:13 |
| R88.htm | 16119 | 2016-02-10 16:53:13 |
| R89.htm | 14473 | 2016-02-10 16:53:13 |
| R9.htm | 4534 | 2016-02-10 16:53:13 |
| R90.htm | 14955 | 2016-02-10 16:53:13 |
| R91.htm | 15057 | 2016-02-10 16:53:13 |
| R92.htm | 4915 | 2016-02-10 16:53:13 |
| R93.htm | 20160 | 2016-02-10 16:53:13 |
| R94.htm | 8653 | 2016-02-10 16:53:13 |
| R95.htm | 21567 | 2016-02-10 16:53:13 |
| R96.htm | 9644 | 2016-02-10 16:53:13 |
| report.css | 2768 | 2016-02-10 16:53:13 |
| Show.js | 1411 | 2016-02-10 16:53:13 |