EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator:
Net income attributable to Franklin Electric Co., Inc.	$ 187,332	$ 153,860	$ 100,460
Less: Earnings allocated to participating securities	700	900	700
Net income available to common shareholders	$ 186,600	$ 153,000	$ 99,800
Denominator:
Basic weighted average common shares outstanding (in shares)	46.3	46.4	46.2
Effect of dilutive securities:
Non-participating employee stock options and performance awards (in shares)	0.7	0.6	0.5
Diluted weighted average common shares outstanding (in shares)	47.0	47.0	46.7
Basic	$ 4.02	$ 3.29	$ 2.16
Diluted	$ 3.97	$ 3.25	$ 2.14
Anti-dilutive stock options (in shares)	0.1	0.1	0.2