CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 2,043,711	$ 1,661,865	$ 1,247,331
Cost of sales	1,352,276	1,085,776	814,192
Gross profit	691,435	576,089	433,139
Selling, general, and administrative expenses	432,076	386,275	300,122
Restructuring expense	2,170	621	2,506
Operating income	257,189	189,193	130,511
Interest expense	(11,525)	(5,196)	(4,627)
Other income/(expense), net	(3,201)	7,978	(795)
Foreign exchange income/(expense)	(7,236)	(2,269)	(1,392)
Income before income taxes	235,227	189,706	123,697
Income tax expense	46,416	34,731	22,540
Net income	188,811	154,975	101,157
Less: Net loss/(income) attributable to noncontrolling interests	(1,479)	(1,115)	(697)
Net income attributable to Franklin Electric Co., Inc.	$ 187,332	$ 153,860	$ 100,460
Earnings per share:
Basic	$ 4.02	$ 3.29	$ 2.16
Diluted	$ 3.97	$ 3.25	$ 2.14