| Cover | Jul. 31, 2023 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Jul. 31, 2023 |
| Entity Registrant Name | Latch, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-39688 |
| Entity Tax Identification Number | 85-3087759 |
| Entity Address, Address Line One | 508 West 26th Street, Suite 6G |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10001 |
| City Area Code | 917 |
| Local Phone Number | 338-3915 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001826000 |
| Common stock, par value $0.0001 per share | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Common stock, par value $0.0001 per share |
| Trading Symbol | LTCH |
| Security Exchange Name | NASDAQ |
| Warrants, each whole warrant exercisable for one share of Common stock at an exercise price of $11.50 per share | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Warrants, each whole warrant exercisable for one share of Common stock at an exercise price of $11.50 per share |
| Trading Symbol | LTCHW |
| Security Exchange Name | NASDAQ |
