Statements of Consolidated Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Statement [Abstract]
Net sales	$ 669,338	$ 593,714	$ 669,679
Cost of products sold	460,799	403,903	434,831
GROSS PROFIT	208,539	189,811	234,848
Costs and expenses
Selling	52,011	48,722	51,078
General and administrative	75,176	67,477	74,643
Research and engineering	23,687	21,923	22,481
Other operating expense, net	2,530	932	2,492
Total costs and expenses	153,404	139,054	150,694
OPERATING INCOME	55,135	50,757	84,154
Other income (expense)
Interest income	2,317	2,573	1,811
Interest expense	(1,303)	(2,221)	(3,905)
Pension termination expense	(11,657)	0	0
Other income (expense), net	1,128	(339)	284
Total other income (expense)	(9,515)	13	(1,810)
INCOME BEFORE INCOME TAXES	45,620	50,770	82,344
Income tax expense	10,313	13,659	19,007
NET INCOME	35,307	37,111	63,337
Net income attributable to noncontrolling interests	(24)	(17)	(5)
NET INCOME ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS	$ 35,283	$ 37,094	$ 63,332
AVERAGE NUMBER OF SHARES OF COMMON STOCK OUTSTANDING:
Basic (in shares)	4,918	4,908	4,920
Diluted (in shares)	4,942	4,947	4,997
EARNINGS PER SHARE OF COMMON STOCK ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS:
Basic (in dollars per share)	$ 7.17	$ 7.56	$ 12.87
Diluted (in dollars per share)	$ 7.14	$ 7.50	$ 12.68