CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 58,168	$ 58,972	$ 155,904	$ 148,854
Other comprehensive income/(loss), before tax:
Foreign currency translation adjustments	(10,851)	(16,046)	138	(26,959)
Employee benefit plan activity	513	1,656	1,623	4,032
Other comprehensive income/(loss)	(10,338)	(14,390)	1,761	(22,927)
Income tax expense related to items of other comprehensive income/(loss)	(128)	(379)	(405)	(899)
Other comprehensive income/(loss), net of tax	(10,466)	(14,769)	1,356	(23,826)
Comprehensive income	47,702	44,203	157,260	125,028
Less: Comprehensive income attributable to noncontrolling interests	(294)	(226)	(1,141)	(854)
Comprehensive income attributable to Franklin Electric Co., Inc.	$ 47,408	$ 43,977	$ 156,119	$ 124,174