EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator:
Net income attributable to Franklin Electric Co., Inc.	$ 58,624	$ 46,172	$ 147,753	$ 113,193
Less: Earnings allocated to participating securities	200	300	600	700
Net income available to common shareholders	$ 58,400	$ 45,900	$ 147,200	$ 112,500
Basic
Basic weighted average common shares outstanding	46.3	46.5	46.4	46.4
Effect of dilutive securities:
Non-participating employee stock options, performance awards, and deferred shares to non-employee directors	0.7	0.5	0.7	0.6
Diluted weighted average common shares outstanding	47.0	47.0	47.1	47.0
Basic	$ 1.26	$ 0.99	$ 3.17	$ 2.43
Diluted	$ 1.24	$ 0.98	$ 3.13	$ 2.40
Anti-dilutive stock options (in shares)	0.0	0.0	0.1	0.1