Statements of Consolidated Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net sales	$ 140,904	$ 181,824
Cost of products sold	96,773	115,541
GROSS PROFIT	44,131	66,283
Costs and expenses
Selling	11,900	12,388
General and administrative	16,608	18,609
Research and engineering	5,431	5,193
Other operating (income) expense, net	(1,367)	1,112
Total costs and expenses	32,572	37,302
OPERATING INCOME	11,559	28,981
Other income (expense)
Interest income	972	304
Interest expense	(708)	(1,066)
Other income, net	35	40
Total other income (expense)	299	(722)
INCOME BEFORE INCOME TAXES	11,858	28,259
Income tax expense	2,255	6,840
NET INCOME	9,603	21,419
Net income attributable to noncontrolling interests	(7)	(21)
NET INCOME ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS	$ 9,596	$ 21,398
AVERAGE NUMBER OF SHARES OF COMMON STOCK OUTSTANDING:
Basic	4,915	4,937
Diluted	4,944	4,997
EARNINGS PER SHARE OF COMMON STOCK ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS:
Basic	$ 1.95	$ 4.33
Diluted	$ 1.94	$ 4.28

The total amount of expenses directly related to research and engineering of products.

No definition available.

Name:	plpc_ResearchAndEngineeringExpense
Namespace Prefix:	plpc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.