Cover page
Cover page | Aug. 05, 2020 | May 06, 2020 |
Cover [Abstract] | ||
Document Type | 8-K | |
Document Period End Date | Aug. 5, 2020 | |
Entity Registrant Name | SOUTH JERSEY INDUSTRIES, INC. | |
Entity Incorporation, State or Country Code | NJ | |
Entity File Number | 1-6364 | |
Entity Tax Identification Number | 22-1901645 | |
Entity Address, Address Line One | 1 South Jersey Plaza | |
Entity Address, City or Town | Folsom | |
Entity Address, State or Province | NJ | |
Entity Address, Postal Zip Code | 08037 | |
City Area Code | 609 | |
Local Phone Number | 561-9000 | |
Written Communications | false | |
Soliciting Material | false | |
Pre-commencement Tender Offer | false | |
Pre-commencement Issuer Tender Offer | false | |
Entity Central Index Key | 0000091928 | |
Amendment Flag | false | |
Entity Emerging Growth Company | false | |
Document Information [Line Items] | ||
Document Period End Date | Aug. 5, 2020 | |
Common Stock [Member] | ||
Cover [Abstract] | ||
Title of 12(b) Security | Common Stock | |
Trading Symbol | SJI | |
Security Exchange Name | NYSE | |
Document Information [Line Items] | ||
Title of 12(b) Security | Common Stock | |
Trading Symbol | SJI | |
Security Exchange Name | NYSE | |
Convertible Notes Payable [Member] | ||
Cover [Abstract] | ||
Title of 12(b) Security | 5.625% Junior Subordinated Notes due 2079 | |
Trading Symbol | SJIJ | |
Security Exchange Name | NYSE | |
Document Information [Line Items] | ||
Title of 12(b) Security | 5.625% Junior Subordinated Notes due 2079 | |
Trading Symbol | SJIJ | |
Security Exchange Name | NYSE | |
Capital Units [Member] | ||
Cover [Abstract] | ||
Title of 12(b) Security | Corporate Units | |
Trading Symbol | SJIU | |
Security Exchange Name | NYSE | |
Document Information [Line Items] | ||
Title of 12(b) Security | Corporate Units | |
Trading Symbol | SJIU | |
Security Exchange Name | NYSE |