Name | Size | Last Modified |
---|---|---|
0000784977-23-000034-index-headers.html | 2023-03-07 16:21:40 | |
0000784977-23-000034-index.html | 2023-03-07 16:21:40 | |
0000784977-23-000034.txt | 2023-03-07 16:21:40 | |
0000784977-23-000034-xbrl.zip | 7283152 | 2023-03-07 16:21:40 |
FilingSummary.xml | 5457 | 2023-03-07 16:21:40 |
Financial_Report.xlsx | 9680 | 2023-03-07 16:21:40 |
MetaLinks.json | 148995 | 2023-03-07 16:21:40 |
por-20230306.htm | 1976233 | 2023-03-07 16:21:40 |
por-20230306.xsd | 3904 | 2023-03-07 16:21:40 |
por-20230306_def.xml | 4872 | 2023-03-07 16:21:40 |
por-20230306_g1.jpg | 331282 | 2023-03-07 16:21:40 |
por-20230306_g10.jpg | 55826 | 2023-03-07 16:21:40 |
por-20230306_g11.jpg | 56347 | 2023-03-07 16:21:40 |
por-20230306_g12.jpg | 54230 | 2023-03-07 16:21:40 |
por-20230306_g13.jpg | 64951 | 2023-03-07 16:21:40 |
por-20230306_g14.jpg | 60025 | 2023-03-07 16:21:40 |
por-20230306_g15.jpg | 46051 | 2023-03-07 16:21:40 |
por-20230306_g16.jpg | 300150 | 2023-03-07 16:21:40 |
por-20230306_g17.jpg | 81103 | 2023-03-07 16:21:40 |
por-20230306_g18.jpg | 157754 | 2023-03-07 16:21:40 |
por-20230306_g19.jpg | 503031 | 2023-03-07 16:21:40 |
por-20230306_g2.jpg | 108548 | 2023-03-07 16:21:40 |
por-20230306_g20.jpg | 22280 | 2023-03-07 16:21:40 |
por-20230306_g21.jpg | 21303 | 2023-03-07 16:21:40 |
por-20230306_g22.jpg | 25057 | 2023-03-07 16:21:40 |
por-20230306_g23.jpg | 28057 | 2023-03-07 16:21:40 |
por-20230306_g24.jpg | 37390 | 2023-03-07 16:21:40 |
por-20230306_g25.jpg | 33838 | 2023-03-07 16:21:40 |
por-20230306_g26.jpg | 34867 | 2023-03-07 16:21:40 |
por-20230306_g27.jpg | 103520 | 2023-03-07 16:21:40 |
por-20230306_g28.jpg | 120045 | 2023-03-07 16:21:40 |
por-20230306_g29.jpg | 116218 | 2023-03-07 16:21:40 |
por-20230306_g3.gif | 2319 | 2023-03-07 16:21:40 |
por-20230306_g30.jpg | 113349 | 2023-03-07 16:21:40 |
por-20230306_g31.jpg | 99604 | 2023-03-07 16:21:40 |
por-20230306_g32.jpg | 89113 | 2023-03-07 16:21:40 |
por-20230306_g33.jpg | 106898 | 2023-03-07 16:21:40 |
por-20230306_g34.jpg | 100786 | 2023-03-07 16:21:40 |
por-20230306_g35.jpg | 129733 | 2023-03-07 16:21:40 |
por-20230306_g36.jpg | 86618 | 2023-03-07 16:21:40 |
por-20230306_g37.gif | 106491 | 2023-03-07 16:21:40 |
por-20230306_g38.gif | 10939 | 2023-03-07 16:21:40 |
por-20230306_g39.gif | 3823 | 2023-03-07 16:21:40 |
por-20230306_g4.gif | 96242 | 2023-03-07 16:21:40 |
por-20230306_g40.gif | 7304 | 2023-03-07 16:21:40 |
por-20230306_g41.gif | 9692 | 2023-03-07 16:21:40 |
por-20230306_g42.jpg | 70161 | 2023-03-07 16:21:40 |
por-20230306_g43.jpg | 72065 | 2023-03-07 16:21:40 |
por-20230306_g44.jpg | 55596 | 2023-03-07 16:21:40 |
por-20230306_g45.jpg | 52837 | 2023-03-07 16:21:40 |
por-20230306_g46.jpg | 70732 | 2023-03-07 16:21:40 |
por-20230306_g47.jpg | 56373 | 2023-03-07 16:21:40 |
por-20230306_g48.jpg | 56980 | 2023-03-07 16:21:40 |
por-20230306_g49.jpg | 51928 | 2023-03-07 16:21:40 |
por-20230306_g5.jpg | 2842 | 2023-03-07 16:21:40 |
por-20230306_g50.jpg | 70654 | 2023-03-07 16:21:40 |
por-20230306_g51.jpg | 54490 | 2023-03-07 16:21:40 |
por-20230306_g52.jpg | 52110 | 2023-03-07 16:21:40 |
por-20230306_g53.jpg | 19734 | 2023-03-07 16:21:40 |
por-20230306_g54.jpg | 117763 | 2023-03-07 16:21:40 |
por-20230306_g55.jpg | 13871 | 2023-03-07 16:21:40 |
por-20230306_g56.jpg | 19644 | 2023-03-07 16:21:40 |
por-20230306_g57.jpg | 88833 | 2023-03-07 16:21:40 |
por-20230306_g58.jpg | 111241 | 2023-03-07 16:21:40 |
por-20230306_g59.jpg | 89093 | 2023-03-07 16:21:40 |
por-20230306_g6.jpg | 38239 | 2023-03-07 16:21:40 |
por-20230306_g60.jpg | 84937 | 2023-03-07 16:21:40 |
por-20230306_g61.jpg | 115566 | 2023-03-07 16:21:40 |
por-20230306_g62.jpg | 94987 | 2023-03-07 16:21:40 |
por-20230306_g63.jpg | 116312 | 2023-03-07 16:21:40 |
por-20230306_g64.jpg | 96252 | 2023-03-07 16:21:40 |
por-20230306_g65.jpg | 80114 | 2023-03-07 16:21:40 |
por-20230306_g66.jpg | 87035 | 2023-03-07 16:21:40 |
por-20230306_g67.jpg | 101835 | 2023-03-07 16:21:40 |
por-20230306_g68.jpg | 73106 | 2023-03-07 16:21:40 |
por-20230306_g69.jpg | 114864 | 2023-03-07 16:21:40 |
por-20230306_g7.jpg | 148313 | 2023-03-07 16:21:40 |
por-20230306_g70.jpg | 1113391 | 2023-03-07 16:21:40 |
por-20230306_g71.jpg | 52228 | 2023-03-07 16:21:40 |
por-20230306_g72.jpg | 78306 | 2023-03-07 16:21:40 |
por-20230306_g73.jpg | 47951 | 2023-03-07 16:21:40 |
por-20230306_g74.jpg | 47140 | 2023-03-07 16:21:40 |
por-20230306_g75.jpg | 145739 | 2023-03-07 16:21:40 |
por-20230306_g76.jpg | 139126 | 2023-03-07 16:21:40 |
por-20230306_g77.jpg | 131658 | 2023-03-07 16:21:40 |
por-20230306_g78.jpg | 132038 | 2023-03-07 16:21:40 |
por-20230306_g79.jpg | 180954 | 2023-03-07 16:21:40 |
por-20230306_g8.jpg | 67037 | 2023-03-07 16:21:40 |
por-20230306_g80.jpg | 69684 | 2023-03-07 16:21:40 |
por-20230306_g81.jpg | 75728 | 2023-03-07 16:21:40 |
por-20230306_g82.jpg | 73686 | 2023-03-07 16:21:40 |
por-20230306_g83.jpg | 305282 | 2023-03-07 16:21:40 |
por-20230306_g9.jpg | 71397 | 2023-03-07 16:21:40 |
por-20230306_htm.xml | 98392 | 2023-03-07 16:21:40 |
por-20230306_lab.xml | 7661 | 2023-03-07 16:21:40 |
por-20230306_pre.xml | 4510 | 2023-03-07 16:21:40 |
R1.htm | 10856 | 2023-03-07 16:21:40 |
R2.htm | 107681 | 2023-03-07 16:21:40 |
report.css | 2767 | 2023-03-07 16:21:40 |
Show.js | 1085 | 2023-03-07 16:21:40 |