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Cover
Mar. 05, 2021
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Mar. 05, 2021
Entity File Number 0-31164
Entity Registrant Name Preformed Line Products Company
Entity Central Index Key 0000080035
Entity Tax Identification Number 34-0676895
Entity Incorporation, State or Country Code OH
Entity Address, Address Line One 660 Beta Drive
Entity Address, City or Town Mayfield Village
Entity Address, State or Province OH
Entity Address, Postal Zip Code 44143
City Area Code 440
Local Phone Number 461-5200
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common
Trading Symbol PLPC
Security Exchange Name NASDAQ
Entity Emerging Growth Company false