| Document and Entity Information | Jul. 06, 2021 |
| Document And Entity Information [Line Items] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001819395 |
| Document Type | 8-K |
| Document Period End Date | Jul. 6, 2021 |
| Entity Registrant Name | GORES METROPOULOS II, INC. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-39907 |
| Entity Tax Identification Number | 85-2097088 |
| Entity Address, Address Line One | 6260 Lookout Road |
| Entity Address, City or Town | Boulder |
| Entity Address, State or Province | CO |
| Entity Address, Postal Zip Code | 80301 |
| City Area Code | (303) |
| Local Phone Number | 531-3100 |
| 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 |
| Units Each Consisting Of One Share Of Class A Common Stock And One Fifth Of One Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Units, each consisting of one share of Class A common stock and one-fifth of one warrant |
| Trading Symbol | GMIIU |
| Security Exchange Name | NASDAQ |
| Class A Common Stock Par Value 0.0001 Per Share [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Class A common stock, par value $0.0001 per share |
| Trading Symbol | GMII |
| Security Exchange Name | NASDAQ |
| Warrants Each Whole Warrant Exercisable For One Share Of Class A Common Stock At An Exercise Price Of 11.50 Per Share [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share |
| Trading Symbol | GMIIW |
| Security Exchange Name | NASDAQ |
