XML 12 R1.htm IDEA: XBRL DOCUMENT v3.19.2
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2019
Jul. 29, 2019
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Trading Symbol PLPC  
Entity Registrant Name PREFORMED LINE PRODUCTS CO  
Entity Central Index Key 0000080035  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   5,030,181
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity File Number 0-31164  
Entity Tax Identification Number 340676895  
Entity Address, Address Line One 660 Beta Drive  
Entity Address, City or Town Mayfield Village  
Entity Address, State or Province Ohio  
Entity Address, Postal Zip Code 44143  
City Area Code 440  
Local Phone Number 461-5200