Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000077281-17-000025-index-headers.html | 2017-04-27 13:18:38 | |
| 0000077281-17-000025-index.html | 2017-04-27 13:18:38 | |
| 0000077281-17-000025.txt | 2017-04-27 13:18:38 | |
 0000077281-17-000025-xbrl.zip | 181139 | 2017-04-27 13:18:38 |
| a2017q110q03-31x17.htm | 1371705 | 2017-04-27 13:18:38 |
| a2017q1exhibit311.htm | 15575 | 2017-04-27 13:18:38 |
| a2017q1exhibit312.htm | 13881 | 2017-04-27 13:18:38 |
| a2017q1exhibit321.htm | 6306 | 2017-04-27 13:18:38 |
| a2017q1exhibit322.htm | 6428 | 2017-04-27 13:18:38 |
| FilingSummary.xml | 26202 | 2017-04-27 13:18:38 |
| Financial_Report.xlsx | 55535 | 2017-04-27 13:18:38 |
| pei-20170331.xml | 1031162 | 2017-04-27 13:18:38 |
| pei-20170331.xsd | 59223 | 2017-04-27 13:18:38 |
| pei-20170331_cal.xml | 82849 | 2017-04-27 13:18:38 |
| pei-20170331_def.xml | 277353 | 2017-04-27 13:18:38 |
| pei-20170331_lab.xml | 628809 | 2017-04-27 13:18:38 |
| pei-20170331_pre.xml | 384758 | 2017-04-27 13:18:38 |
| R1.htm | 22008 | 2017-04-27 13:18:38 |
| R10.htm | 23347 | 2017-04-27 13:18:38 |
| R11.htm | 50204 | 2017-04-27 13:18:38 |
| R12.htm | 99320 | 2017-04-27 13:18:38 |
| R13.htm | 52784 | 2017-04-27 13:18:38 |
| R14.htm | 8936 | 2017-04-27 13:18:38 |
| R15.htm | 7225 | 2017-04-27 13:18:38 |
| R16.htm | 160692 | 2017-04-27 13:18:38 |
| R17.htm | 7272 | 2017-04-27 13:18:38 |
| R18.htm | 49246 | 2017-04-27 13:18:38 |
| R19.htm | 31256 | 2017-04-27 13:18:38 |
| R2.htm | 92876 | 2017-04-27 13:18:38 |
| R20.htm | 20155 | 2017-04-27 13:18:38 |
| R21.htm | 69991 | 2017-04-27 13:18:38 |
| R22.htm | 44995 | 2017-04-27 13:18:38 |
| R23.htm | 146480 | 2017-04-27 13:18:38 |
| R24.htm | 20018 | 2017-04-27 13:18:38 |
| R25.htm | 11012 | 2017-04-27 13:18:38 |
| R26.htm | 4434 | 2017-04-27 13:18:38 |
| R27.htm | 4189 | 2017-04-27 13:18:38 |
| R28.htm | 16082 | 2017-04-27 13:18:38 |
| R29.htm | 13748 | 2017-04-27 13:18:38 |
| R3.htm | 31076 | 2017-04-27 13:18:38 |
| R30.htm | 34298 | 2017-04-27 13:18:38 |
| R31.htm | 40804 | 2017-04-27 13:18:38 |
| R32.htm | 43145 | 2017-04-27 13:18:38 |
| R33.htm | 5507 | 2017-04-27 13:18:38 |
| R34.htm | 35040 | 2017-04-27 13:18:38 |
| R35.htm | 24200 | 2017-04-27 13:18:38 |
| R36.htm | 6860 | 2017-04-27 13:18:38 |
| R37.htm | 12105 | 2017-04-27 13:18:38 |
| R38.htm | 22577 | 2017-04-27 13:18:38 |
| R39.htm | 10119 | 2017-04-27 13:18:38 |
| R4.htm | 87612 | 2017-04-27 13:18:38 |
| R40.htm | 7851 | 2017-04-27 13:18:38 |
| R41.htm | 30863 | 2017-04-27 13:18:38 |
| R42.htm | 114298 | 2017-04-27 13:18:38 |
| R43.htm | 11923 | 2017-04-27 13:18:38 |
| R44.htm | 16728 | 2017-04-27 13:18:38 |
| R5.htm | 5482 | 2017-04-27 13:18:38 |
| R6.htm | 18331 | 2017-04-27 13:18:38 |
| R7.htm | 46893 | 2017-04-27 13:18:38 |
| R8.htm | 8970 | 2017-04-27 13:18:38 |
| R9.htm | 86331 | 2017-04-27 13:18:38 |
| report.css | 2767 | 2017-04-27 13:18:38 |
| Show.js | 1410 | 2017-04-27 13:18:38 |