Statements of Consolidated Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net sales	$ 669,679	$ 637,021	$ 517,417
Cost of products sold	434,831	421,841	351,175
GROSS PROFIT	234,848	215,180	166,242
Costs and expenses
Selling	51,078	45,712	40,539
General and administrative	74,643	70,317	55,257
Research and engineering	22,481	19,661	19,188
Goodwill impairment	0	6,529	0
Other operating expense, net	2,492	3,600	3,709
Total costs and expenses	150,694	145,819	118,693
OPERATING INCOME	84,154	69,361	47,549
Other income (expense)
Interest income	1,811	631	169
Interest expense	(3,905)	(3,214)	(2,023)
Other income, net	284	6,926	3,201
Total other income (expense)	(1,810)	4,343	1,347
INCOME BEFORE INCOME TAXES	82,344	73,704	48,896
Income tax expense	19,007	19,305	13,175
NET INCOME	63,337	54,399	35,721
Net (income) loss attributable to noncontrolling interests	(5)	(4)	8
NET INCOME ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS	$ 63,332	$ 54,395	$ 35,729
AVERAGE NUMBER OF SHARES OF COMMON STOCK OUTSTANDING:
Basic	4,920	4,931	4,907
Diluted	4,997	4,999	4,970
EARNINGS PER SHARE OF COMMON STOCK ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS:
Basic	$ 12.87	$ 11.03	$ 7.28
Diluted	$ 12.68	$ 10.88	$ 7.19