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|---|---|---|
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| 0000722885-17-000059-index.html | 2017-02-10 10:15:46 | |
| 0000722885-17-000059.txt | 2017-02-10 10:15:46 | |
 0000722885-17-000059-xbrl.zip | 104428 | 2017-02-10 10:15:46 |
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| coverltr.htm | 4527 | 2017-02-10 10:15:46 |
| FilingSummary.xml | 9736 | 2017-02-10 10:15:46 |
| ptf-20170206.xml | 270498 | 2017-02-10 10:15:46 |
| ptf-20170206.xsd | 18201 | 2017-02-10 10:15:46 |
| ptf-20170206_cal.xml | 13133 | 2017-02-10 10:15:46 |
| ptf-20170206_def.xml | 648087 | 2017-02-10 10:15:46 |
| ptf-20170206_lab.xml | 164922 | 2017-02-10 10:15:46 |
| ptf-20170206_pre.xml | 677011 | 2017-02-10 10:15:46 |
| R1.htm | 47284 | 2017-02-10 10:15:46 |
| R10.htm | 99254 | 2017-02-10 10:15:46 |
| R11.htm | 190298 | 2017-02-10 10:15:46 |
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| R13.htm | 165726 | 2017-02-10 10:15:46 |
| R18.htm | 16188 | 2017-02-10 10:15:46 |
| R2.htm | 108583 | 2017-02-10 10:15:46 |
| R3.htm | 201865 | 2017-02-10 10:15:46 |
| R4.htm | 103582 | 2017-02-10 10:15:46 |
| R5.htm | 191688 | 2017-02-10 10:15:46 |
| R6.htm | 104641 | 2017-02-10 10:15:46 |
| R7.htm | 199515 | 2017-02-10 10:15:46 |
| R8.htm | 101113 | 2017-02-10 10:15:46 |
| R9.htm | 188229 | 2017-02-10 10:15:46 |
| report.css | 2767 | 2017-02-10 10:15:46 |
| Show.js | 1410 | 2017-02-10 10:15:46 |