Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000928816-16-003547-index-headers.html | 2016-09-16 09:16:58 | |
| 0000928816-16-003547-index.html | 2016-09-16 09:16:58 | |
| 0000928816-16-003547.txt | 2016-09-16 09:16:58 | |
 0000928816-16-003547-xbrl.zip | 68533 | 2016-09-16 09:16:58 |
| a_rrsupp.htm | 227264 | 2016-09-16 09:16:58 |
| FilingSummary.xml | 8056 | 2016-09-16 09:16:58 |
| prr-20160902.xml | 690872 | 2016-09-16 09:16:58 |
| prr-20160902.xsd | 22606 | 2016-09-16 09:16:58 |
| prr-20160902_def.xml | 222809 | 2016-09-16 09:16:58 |
| prr-20160902_lab.xml | 223830 | 2016-09-16 09:16:58 |
| prr-20160902_pre.xml | 525777 | 2016-09-16 09:16:58 |
| R1.htm | 51111 | 2016-09-16 09:16:58 |
| R10.htm | 55041 | 2016-09-16 09:16:58 |
| R11.htm | 316536 | 2016-09-16 09:16:58 |
| R12.htm | 43532 | 2016-09-16 09:16:58 |
| R17.htm | 641242 | 2016-09-16 09:16:58 |
| R2.htm | 55012 | 2016-09-16 09:16:58 |
| R3.htm | 54997 | 2016-09-16 09:16:58 |
| R4.htm | 54990 | 2016-09-16 09:16:58 |
| R5.htm | 54995 | 2016-09-16 09:16:58 |
| R6.htm | 54995 | 2016-09-16 09:16:58 |
| R7.htm | 54990 | 2016-09-16 09:16:58 |
| R8.htm | 54995 | 2016-09-16 09:16:58 |
| R9.htm | 54995 | 2016-09-16 09:16:58 |
| report.css | 2767 | 2016-09-16 09:16:58 |
| Show.js | 1410 | 2016-09-16 09:16:58 |