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Statements of Consolidated Cash Flows (Unaudited) (Parenthetical) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($)
Corporate Aircraft [Member]
Non cash term loan	$ 20.5

X

- Definition

Non cash term loan.

+ References

No definition available.

+ Details

Name:	plpc_NonCashTermLoan
Namespace Prefix:	plpc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=plpc_CorporateAircraftMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: