CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net sales	$ 308,281	$ 355,340	$ 575,035	$ 646,055
Cost of sales	201,159	235,622	377,596	436,831
Gross profit	107,122	119,718	197,439	209,224
Selling, general, and administrative expenses	72,314	75,782	147,937	152,081
Restructuring expense	875	245	1,748	1,331
Operating income	33,933	43,691	47,754	55,812
Interest expense	(1,132)	(2,295)	(2,366)	(4,637)
Other expense, net	(397)	(292)	(599)	(53)
Foreign exchange income/(expense)	(906)	(505)	56	84
Income before income taxes	31,498	40,599	44,845	51,206
Income tax expense	6,696	7,787	9,251	9,267
Net income	24,802	32,812	35,594	41,939
Less: Net (income) attributable to noncontrolling interests	(151)	(67)	(300)	(138)
Net income attributable to Franklin Electric Co., Inc.	$ 24,651	$ 32,745	$ 35,294	$ 41,801
Income per share:
Basic earnings per share (in dollars per share)	$ 0.53	$ 0.70	$ 0.76	$ 0.89
Diluted earnings per share (in dollars per share)	$ 0.52	$ 0.70	$ 0.75	$ 0.89