CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net sales	$ 2,065,133	$ 2,043,711	$ 1,661,865
Cost of sales	1,368,125	1,352,276	1,085,776
Gross profit	697,008	691,435	576,089
Selling, general, and administrative expenses	433,476	432,076	386,275
Restructuring expense	1,091	2,170	621
Operating income	262,441	257,189	189,193
Interest expense	(11,790)	(11,525)	(5,196)
Other income/(expense), net	3,696	(3,201)	7,978
Foreign exchange expense	(12,124)	(7,236)	(2,269)
Income before income taxes	242,223	235,227	189,706
Income tax expense	47,489	46,416	34,731
Net income	194,734	188,811	154,975
Less: Net income attributable to noncontrolling interests	(1,462)	(1,479)	(1,115)
Net income attributable to Franklin Electric Co., Inc.	$ 193,272	$ 187,332	$ 153,860
Earnings per share:
Basic	$ 4.17	$ 4.02	$ 3.29
Diluted	$ 4.11	$ 3.97	$ 3.25