v3.22.2.2
Document and Entity Information
Sep. 13, 2022
Cover [Abstract]  
Document Type 8-K
Document Period End Date Sep. 13, 2022
Entity Registrant Name Kemper Corporation
Entity Central Index Key 0000860748
Amendment Flag false
Entity File Number 001-18298
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 95-4255452
Entity Address, Address Line One 200 E. Randolph Street
Entity Address, Address Line Two Suite 3300
Entity Address, City or Town Chicago
Entity Address, State or Province IL
Entity Address, Postal Zip Code 60601
City Area Code 312
Local Phone Number 661-4600
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock  
Cover [Abstract]  
Title of 12(b) Security Common Stock, par value $0.10 per share
Trading Symbol KMPR
Security Exchange Name NYSE
Entity Listings [Line Items]  
Trading Symbol KMPR
Security Exchange Name NYSE
Title of 12(b) Security Common Stock, par value $0.10 per share
5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062  
Cover [Abstract]  
Title of 12(b) Security 5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062
Trading Symbol KMPB
Security Exchange Name NYSE
Entity Listings [Line Items]  
Trading Symbol KMPB
Security Exchange Name NYSE
Title of 12(b) Security 5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062