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Segment Information - Summary of Depreciation and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Total depreciation and amortization	$ 6,006	$ 5,385	$ 17,259	$ 16,413
PLP-USA
Segment Reporting Information [Line Items]
Total depreciation and amortization	3,338	2,973	9,596	8,687
The Americas
Segment Reporting Information [Line Items]
Total depreciation and amortization	915	799	2,600	3,002
EMEA
Segment Reporting Information [Line Items]
Total depreciation and amortization	1,003	869	2,841	2,532
Asia-Pacific
Segment Reporting Information [Line Items]
Total depreciation and amortization	$ 750	$ 744	$ 2,222	$ 2,192

X

- Definition

Deprecation, Depletion And Amortization, Including Foreign Exchange

+ References

No definition available.

+ Details

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Namespace Prefix:	plpc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=plpc_AmericasSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=plpc_EMEASegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=plpc_AsiaPacificSegmentMember
Namespace Prefix:
Data Type:	na
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Period Type: