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Segment Information - Summary of Depreciation and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Total depreciation and amortization	$ 5,560	$ 5,792
PLP-USA
Segment Reporting Information [Line Items]
Total depreciation and amortization	3,099	2,785
The Americas
Segment Reporting Information [Line Items]
Total depreciation and amortization	805	1,371
EMEA
Segment Reporting Information [Line Items]
Total depreciation and amortization	905	875
Asia-Pacific
Segment Reporting Information [Line Items]
Total depreciation and amortization	$ 751	$ 761

X

- Definition

Deprecation, Depletion And Amortization, Including Foreign Exchange

+ References

No definition available.

+ Details

Name:	plpc_DeprecationDepletionAndAmortizationIncludingForeignExchange
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

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

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=plpc_PlpUsaMember
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
Balance Type:
Period Type: