DOCUMENT AND ENTITY INFORMATION - $ / shares	6 Months Ended
	Jun. 30, 2018	Jul. 27, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Entity Registrant Name	FRANKLIN ELECTRIC CO INC
Entity Listing, Par Value Per Share	$ 0.10
Entity Common Stock, Shares Outstanding		46,715,822
Entity Central Index Key	0000038725
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Amendment Flag	false