Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000080035-26-000017-index.html | 2026-04-30 12:02:54 | |
| 0000080035-26-000017.txt | 2026-04-30 12:02:54 | |
 0000080035-26-000017-xbrl.zip | 176855 | 2026-04-30 12:02:54 |
| FilingSummary.xml | 36145 | 2026-04-30 12:02:54 |
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| plpc-10qxex311x2026q1.htm | 9799 | 2026-04-30 12:02:54 |
| plpc-10qxex312x2026q1.htm | 9813 | 2026-04-30 12:02:54 |
| plpc-10qxex321x2026q1.htm | 4423 | 2026-04-30 12:02:54 |
| plpc-10qxex322x2026q1.htm | 4436 | 2026-04-30 12:02:54 |
| plpc-20260331.htm | 1098587 | 2026-04-30 12:02:54 |
| plpc-20260331.xsd | 38644 | 2026-04-30 12:02:54 |
| plpc-20260331_cal.xml | 73022 | 2026-04-30 12:02:54 |
| plpc-20260331_def.xml | 167948 | 2026-04-30 12:02:54 |
| plpc-20260331_htm.xml | 909277 | 2026-04-30 12:02:54 |
| plpc-20260331_lab.xml | 542519 | 2026-04-30 12:02:54 |
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| R1.htm | 51526 | 2026-04-30 12:02:54 |
| R10.htm | 37780 | 2026-04-30 12:02:54 |
| R11.htm | 15003 | 2026-04-30 12:02:54 |
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| R26.htm | 14041 | 2026-04-30 12:02:54 |
| R27.htm | 14537 | 2026-04-30 12:02:54 |
| R28.htm | 9505 | 2026-04-30 12:02:54 |
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| R4.htm | 116756 | 2026-04-30 12:02:54 |
| R40.htm | 7734 | 2026-04-30 12:02:54 |
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| R6.htm | 74337 | 2026-04-30 12:02:54 |
| R7.htm | 67213 | 2026-04-30 12:02:54 |
| R8.htm | 10211 | 2026-04-30 12:02:54 |
| R9.htm | 10865 | 2026-04-30 12:02:54 |
| report.css | 2767 | 2026-04-30 12:02:54 |
| Show.js | 1085 | 2026-04-30 12:02:54 |