| Document and Entity Information | Jan. 20, 2022 |
| Entity Listings [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jan. 20, 2022 |
| Entity Registrant Name | SILVER SPIKE ACQUISITION CORP II |
| Entity Incorporation, State or Country Code | KY |
| Entity File Number | 001-40182 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Address, Address Line One | 660 Madison Avenue Suite 1600 |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10065 |
| City Area Code | 212 |
| Local Phone Number | 905-4923 |
| 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 |
| Entity Central Index Key | 0001826435 |
| Class A ordinary shares, par value $0.0001 per share [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Class A ordinary shares, par value $0.0001 per share |
| Trading Symbol | SPKB |
| Security Exchange Name | NASDAQ |
| Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 |
| Trading Symbol | SPKBW |
| Security Exchange Name | NASDAQ |
| Units, each consisting of one Class A ordinary share and one-fourth of one redeemable warrant [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one Class A ordinary share and one-fourth of one redeemable warrant |
| Trading Symbol | SPKBU |
| Security Exchange Name | NASDAQ |
