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Statements of Consolidated Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Comprehensive Income Net Of Tax [Abstract]
Net income	$ 23,336	$ 26,581	$ 12,654
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	2,028	(12,285)	10,070
Recognized net actuarial gains	397	386	269
Loss on unfunded pension obligations	(195)	(244)	(410)
Other comprehensive income (loss), net of tax	2,230	(12,143)	9,929
Less: Comprehensive income attributable to noncontrolling interests	(33)	0	0
Comprehensive income attributable to Preformed Line Products Company shareholders	$ 25,533	$ 14,438	$ 22,583

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