| Document and Entity Information | Jul. 26, 2023 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 26, 2023 |
| Entity Registrant Name | LSB INDUSTRIES, INC. |
| Entity Central Index Key | 0000060714 |
| Entity File Number | 1-7677 |
| Entity Incorporation State Country Code | DE |
| Entity Tax Identification Number | 73-1015226 |
| Entity Address, Address Line One | 3503 NW 63rd Street |
| Entity Address, Address Line Two | Suite 500 |
| Entity Address, City or Town | Oklahoma City |
| Entity Address, State or Province | OK |
| Entity Address, Postal Zip Code | 73116 |
| City Area Code | (405) |
| Local Phone Number | 235-4546 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Common Stock [Member] | |
| Document Information [Line Items] | |
| Security 12b Title | Common Stock, Par Value $.10 |
| Trading Symbol | LXU |
| Security Exchange Name | NYSE |
| Preferred Stock [Member] | |
| Document Information [Line Items] | |
| Security 12b Title | Preferred Stock Purchase Rights |
| No Trading Symbol Flag | true |
| Security Exchange Name | NYSE |
