| Document and Entity Information | Oct. 30, 2020 |
| Entity Information [Line Items] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001758057 |
| Document Type | 8-K |
| Document Period End Date | Oct. 30, 2020 |
| Entity Registrant Name | GORES METROPOULOS, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-38791 |
| Entity Tax Identification Number | 83-1804317 |
| Entity Address, Address Line One | 9800 Wilshire Blvd. |
| Entity Address, City or Town | Beverly Hills |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 90212 |
| City Area Code | 310 |
| Local Phone Number | 209-3010 |
| Written Communications | true |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Class A Common Stock | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Class A Common Stock |
| Trading Symbol | GMHI |
| Security Exchange Name | NASDAQ |
| Warrant | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Warrants |
| Trading Symbol | GMHIW |
| Security Exchange Name | NASDAQ |
| Units | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Units |
| Trading Symbol | GMHIU |
| Security Exchange Name | NASDAQ |
