CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 188,811	$ 154,975	$ 101,157
Other comprehensive income/(loss), before tax:
Foreign currency translation adjustments	(11,809)	(27,534)	(11,868)
Employee benefit plan activity:
Net gain/(loss) arising during period	6,660	288	(7,398)
Amortization arising during period	5,828	4,760	3,709
Other comprehensive income/(loss)	679	(22,486)	(15,557)
Income tax benefit/(expense) related to items of other comprehensive income/(loss)	(3,647)	(1,458)	1,112
Other comprehensive income/(loss), net of tax	(2,968)	(23,944)	(14,445)
Comprehensive income	185,843	131,031	86,712
Less: Comprehensive loss/(income) attributable to noncontrolling interests	(1,378)	(981)	(813)
Comprehensive income attributable to Franklin Electric Co., Inc.	$ 184,465	$ 130,050	$ 85,899