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Significant Accounting Policies - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2024
Significant Accounting Policies [Line Items]
Percentage of ownership in earnings of subsidiary	100.00%

X

- Definition

Percentage of ownership in earnings of subsidiary.

+ References

No definition available.

+ Details

Name:	plpc_PercentageOfOwnershipInEarningsOfSubsidiary
Namespace Prefix:	plpc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Significant accounting policies.

+ References

No definition available.

+ Details

Name:	plpc_SignificantAccountingPoliciesLineItems
Namespace Prefix:	plpc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration