CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Net sales	$ 581,714	$ 531,438	$ 1,624,395	$ 1,535,596
Cost of sales	373,010	341,775	1,039,962	982,556
Gross profit	208,704	189,663	584,433	553,040
Selling, general, and administrative expenses	123,474	115,998	366,638	352,290
Restructuring expense	112	139	435	139
Operating income	85,118	73,526	217,360	200,611
Interest expense	(3,496)	(1,556)	(8,100)	(4,980)
Other income (expense), net	(165)	(181)	514	709
Foreign exchange income (expense), net	(2,673)	88	(8,514)	(5,228)
Pension settlement loss	(55,251)	0	(55,251)	0
Income before income taxes	23,533	71,877	146,009	191,112
Income tax expense	6,329	16,983	36,868	43,795
Net income	17,204	54,894	109,141	147,317
Less: Net income attributable to noncontrolling interests	(466)	(298)	(1,301)	(663)
Net income attributable to Franklin Electric Co., Inc.	$ 16,738	$ 54,596	$ 107,840	$ 146,654
Earnings per share:
Basic	$ 0.37	$ 1.19	$ 2.38	$ 3.18
Diluted	$ 0.37	$ 1.17	$ 2.35	$ 3.14