Statements of Consolidated Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Shares	Common Shares Issued to Rabbi Trust	Deferred Compensation Liability	Paid in Capital	Retained Earnings	Treasury Shares	Cumulative Translation Adjustment	Unrecognized Pension Benefit Cost	Total Preformed Line Products Company Equity	Noncontrolling Interests
Beginning Balance at Dec. 31, 2024	$ 422,324	$ 13,752	$ (9,575)	$ 9,575	$ 65,093	$ 553,179	$ (126,800)	$ (77,536)	$ (5,373)	$ 422,315	$ 9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,553					11,517				11,517	36
Foreign currency translation adjustment	6,671							6,671		6,671
Pension adjustment, net of tax	123								123	123
Total comprehensive income	18,347									18,311	36
Purchase of common shares	(131)						(131)			(131)
Stock incentive plan activity	(3,701)	68			(2,888)		(881)			(3,701)
Common shares distributed from rabbi trust, net	0		(19)	19						0
Cash dividends declared	(1,018)					(1,018)				(1,018)
Ending Balance at Mar. 31, 2025	435,821	13,820	(9,594)	9,594	62,205	563,678	(127,812)	(70,865)	(5,250)	435,776	45
Beginning Balance at Dec. 31, 2025	475,551	13,860	(9,586)	9,586	67,217	584,360	(136,554)	(53,365)	0	475,518	33
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	10,549					10,524				10,524	25
Foreign currency translation adjustment	(1,425)							(1,425)		(1,425)
Pension adjustment, net of tax	0									0
Total comprehensive income	9,124									9,099	25
Purchase of common shares	(8,938)						(8,938)			(8,938)
Stock incentive plan activity	(1,140)	30			(1,170)					(1,140)
Common shares issued to rabbi trust, net	0									0
Cash dividends declared	(1,015)					(1,015)				(1,015)
Ending Balance at Mar. 31, 2026	$ 473,582	$ 13,890	$ (9,586)	$ 9,586	$ 66,047	$ 593,869	$ (145,492)	$ (54,790)	$ 0	$ 473,524	$ 58