CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net sales	$ 333,046	$ 266,754
Cost of sales	217,500	176,437
Gross profit	115,546	90,317
Selling, general, and administrative expenses	81,603	75,623
Restructuring expense	152	873
Operating income	33,791	13,821
Interest expense	(1,090)	(1,234)
Other income/(expense), net	(100)	(202)
Foreign exchange income/(expense)	(57)	962
Income before income taxes	32,544	13,347
Income tax (benefit)/expense	4,381	2,555
Net income	28,163	10,792
Less: Net (income)/expense attributable to noncontrolling interests	(283)	(149)
Net income attributable to Franklin Electric Co., Inc.	$ 27,880	$ 10,643
Income per share:
Basic	$ 0.60	$ 0.23
Diluted	$ 0.59	$ 0.23