Statements of Consolidated Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Income Statement [Abstract]
Net sales	$ 176,278	$ 148,541
Cost of products sold	121,058	99,870
GROSS PROFIT	55,220	48,671
Costs and expenses
Selling	13,769	12,181
General and administrative	21,053	17,626
Research and engineering	6,736	5,479
Other operating (income) expense, net	(54)	255
Total costs and expenses	41,504	35,541
Operating Income	13,716	13,130
Other income (expense)
Interest income	777	510
Interest expense	(232)	(376)
Other income, net	69	407
Total other income (expense)	614	541
Income before income taxes	14,330	13,671
Income tax expense	3,781	2,118
NET INCOME	10,549	11,553
Net income attributable to noncontrolling interests	(25)	(36)
NET INCOME ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS	$ 10,524	$ 11,517
AVERAGE NUMBER OF SHARES OF COMMON STOCK OUTSTANDING:
Basic (in shares)	4,906	4,928
Diluted (in shares)	4,927	4,950
EARNINGS PER SHARE OF COMMON STOCK ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS:
Basic (in dollars per share)	$ 2.15	$ 2.34
Diluted (in dollars per share)	$ 2.14	$ 2.33