Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-14-054910-index-headers.html | 2014-02-14 16:33:11 | |
| 0001193125-14-054910-index.html | 2014-02-14 16:33:11 | |
| 0001193125-14-054910.txt | 2014-02-14 16:33:11 | |
 0001193125-14-054910-xbrl.zip | 232669 | 2014-02-14 16:33:11 |
| d639374d10k.htm | 1531338 | 2014-02-14 16:33:11 |
| d639374dex211.htm | 4825 | 2014-02-14 16:33:11 |
| d639374dex231.htm | 1478 | 2014-02-14 16:33:11 |
| d639374dex311.htm | 6357 | 2014-02-14 16:33:11 |
| d639374dex312.htm | 6399 | 2014-02-14 16:33:11 |
| d639374dex321.htm | 4924 | 2014-02-14 16:33:11 |
| FilingSummary.xml | 48935 | 2014-02-14 16:33:11 |
| Financial_Report.xls | 1450487 | 2014-02-14 16:33:11 |
| Financial_Report.xlsx | 252871 | 2014-02-14 16:33:11 |
 g639374g62s48.jpg | 35571 | 2014-02-14 16:33:11 |
| pten-20131231.xml | 1761193 | 2014-02-14 16:33:11 |
| pten-20131231.xsd | 101283 | 2014-02-14 16:33:11 |
| pten-20131231_cal.xml | 105587 | 2014-02-14 16:33:11 |
| pten-20131231_def.xml | 551684 | 2014-02-14 16:33:11 |
| pten-20131231_lab.xml | 709523 | 2014-02-14 16:33:11 |
| pten-20131231_pre.xml | 657491 | 2014-02-14 16:33:11 |
| R1.htm | 39476 | 2014-02-14 16:33:11 |
| R10.htm | 55589 | 2014-02-14 16:33:11 |
| R11.htm | 11959 | 2014-02-14 16:33:11 |
| R12.htm | 27785 | 2014-02-14 16:33:11 |
| R13.htm | 39365 | 2014-02-14 16:33:11 |
| R14.htm | 14694 | 2014-02-14 16:33:11 |
| R15.htm | 12515 | 2014-02-14 16:33:11 |
| R16.htm | 22642 | 2014-02-14 16:33:11 |
| R17.htm | 16241 | 2014-02-14 16:33:11 |
| R18.htm | 54053 | 2014-02-14 16:33:11 |
| R19.htm | 84062 | 2014-02-14 16:33:11 |
| R2.htm | 107445 | 2014-02-14 16:33:11 |
| R20.htm | 6090 | 2014-02-14 16:33:11 |
| R21.htm | 114673 | 2014-02-14 16:33:11 |
| R22.htm | 4064 | 2014-02-14 16:33:11 |
| R23.htm | 66991 | 2014-02-14 16:33:11 |
| R24.htm | 15131 | 2014-02-14 16:33:11 |
| R25.htm | 20961 | 2014-02-14 16:33:11 |
| R26.htm | 26863 | 2014-02-14 16:33:11 |
| R27.htm | 16804 | 2014-02-14 16:33:11 |
| R28.htm | 97289 | 2014-02-14 16:33:11 |
| R29.htm | 41769 | 2014-02-14 16:33:11 |
| R3.htm | 29708 | 2014-02-14 16:33:11 |
| R30.htm | 9444 | 2014-02-14 16:33:11 |
| R31.htm | 23796 | 2014-02-14 16:33:11 |
| R32.htm | 31281 | 2014-02-14 16:33:11 |
| R33.htm | 12705 | 2014-02-14 16:33:11 |
| R34.htm | 11511 | 2014-02-14 16:33:11 |
| R35.htm | 8841 | 2014-02-14 16:33:11 |
| R36.htm | 48698 | 2014-02-14 16:33:11 |
| R37.htm | 86847 | 2014-02-14 16:33:11 |
| R38.htm | 113621 | 2014-02-14 16:33:11 |
| R39.htm | 59997 | 2014-02-14 16:33:11 |
| R4.htm | 129042 | 2014-02-14 16:33:11 |
| R40.htm | 11430 | 2014-02-14 16:33:11 |
| R41.htm | 17527 | 2014-02-14 16:33:11 |
| R42.htm | 25168 | 2014-02-14 16:33:11 |
| R43.htm | 15889 | 2014-02-14 16:33:11 |
| R44.htm | 10040 | 2014-02-14 16:33:11 |
| R45.htm | 60623 | 2014-02-14 16:33:11 |
| R46.htm | 9375 | 2014-02-14 16:33:11 |
| R47.htm | 16652 | 2014-02-14 16:33:11 |
| R48.htm | 24575 | 2014-02-14 16:33:11 |
| R49.htm | 13762 | 2014-02-14 16:33:11 |
| R5.htm | 13536 | 2014-02-14 16:33:11 |
| R50.htm | 24654 | 2014-02-14 16:33:11 |
| R51.htm | 12029 | 2014-02-14 16:33:11 |
| R52.htm | 25181 | 2014-02-14 16:33:11 |
| R53.htm | 14346 | 2014-02-14 16:33:11 |
| R54.htm | 29586 | 2014-02-14 16:33:11 |
| R55.htm | 6173 | 2014-02-14 16:33:11 |
| R56.htm | 16749 | 2014-02-14 16:33:11 |
| R57.htm | 160929 | 2014-02-14 16:33:11 |
| R58.htm | 23100 | 2014-02-14 16:33:11 |
| R59.htm | 32362 | 2014-02-14 16:33:11 |
| R6.htm | 4422 | 2014-02-14 16:33:11 |
| R60.htm | 18917 | 2014-02-14 16:33:11 |
| R61.htm | 19349 | 2014-02-14 16:33:11 |
| R62.htm | 21991 | 2014-02-14 16:33:11 |
| R63.htm | 14492 | 2014-02-14 16:33:11 |
| R64.htm | 68648 | 2014-02-14 16:33:11 |
| R65.htm | 15536 | 2014-02-14 16:33:11 |
| R66.htm | 38810 | 2014-02-14 16:33:11 |
| R67.htm | 11648 | 2014-02-14 16:33:11 |
| R68.htm | 15789 | 2014-02-14 16:33:11 |
| R69.htm | 29467 | 2014-02-14 16:33:11 |
| R7.htm | 72363 | 2014-02-14 16:33:11 |
| R70.htm | 11098 | 2014-02-14 16:33:11 |
| R71.htm | 29484 | 2014-02-14 16:33:11 |
| R72.htm | 8390 | 2014-02-14 16:33:11 |
| R73.htm | 8845 | 2014-02-14 16:33:11 |
| R74.htm | 11007 | 2014-02-14 16:33:11 |
| R75.htm | 5585 | 2014-02-14 16:33:11 |
| R76.htm | 54129 | 2014-02-14 16:33:11 |
| R77.htm | 19369 | 2014-02-14 16:33:11 |
| R78.htm | 49175 | 2014-02-14 16:33:11 |
| R79.htm | 61642 | 2014-02-14 16:33:11 |
| R8.htm | 135693 | 2014-02-14 16:33:11 |
| R80.htm | 5607 | 2014-02-14 16:33:11 |
| R81.htm | 25843 | 2014-02-14 16:33:11 |
| R82.htm | 20067 | 2014-02-14 16:33:11 |
| R83.htm | 31419 | 2014-02-14 16:33:11 |
| R84.htm | 14040 | 2014-02-14 16:33:11 |
| R85.htm | 10337 | 2014-02-14 16:33:11 |
| R86.htm | 10917 | 2014-02-14 16:33:11 |
| R87.htm | 19179 | 2014-02-14 16:33:11 |
| R88.htm | 6229 | 2014-02-14 16:33:11 |
| R89.htm | 14157 | 2014-02-14 16:33:11 |
| R9.htm | 4006 | 2014-02-14 16:33:11 |
| R90.htm | 6974 | 2014-02-14 16:33:11 |
| R91.htm | 34897 | 2014-02-14 16:33:11 |
| R92.htm | 14449 | 2014-02-14 16:33:11 |
| report.css | 2740 | 2014-02-14 16:33:11 |
| Show.js | 1410 | 2014-02-14 16:33:11 |