EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net income attributable to Franklin Electric Co., Inc.	$ 37,325	$ 29,765
Less: Earnings allocated to participating securities	100	100
Net income available to common shareholders	$ 37,200	$ 29,700
Basic
Basic weighted average common shares outstanding	46.2	46.4
Effect of dilutive securities:
Non-participating employee stock options, performance awards, and deferred shares to non-employee directors	0.7	0.7
Diluted weighted average common shares outstanding	46.9	47.1
Basic	$ 0.81	$ 0.64
Diluted	$ 0.79	$ 0.63
Anti-dilutive stock options (in shares)	0.1	0.1