EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net income attributable to Franklin Electric Co., Inc.	$ 32,959	$ 37,325
Less: Earnings allocated to participating securities	100	100
Net income available to common shareholders	$ 32,900	$ 37,200
Basic
Basic weighted average common shares outstanding	46.1	46.2
Effect of dilutive securities:
Non-participating employee stock options, performance awards, and deferred shares to non-employee directors	0.6	0.7
Diluted weighted average common shares outstanding	46.7	46.9
Basic	$ 0.71	$ 0.81
Diluted	$ 0.70	$ 0.79
Anti-dilutive stock options (in shares)	0.1	0.1