| Cover | Mar. 03, 2023 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 03, 2023 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-40181 |
| Entity Registrant Name | Forest Road Acquisition Corp. II |
| Entity Central Index Key | 0001840161 |
| Entity Tax Identification Number | 86-1376005 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 1177 Avenue of the Americas |
| Entity Address, Address Line Two | 5th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10036 |
| City Area Code | 917 |
| Local Phone Number | 310-3722 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one share of Class A Common Stock and one-fifth of one Redeemable Warrant | |
| Title of 12(b) Security | Units, each consisting of one share of Class A Common Stock and one-fifth of one Redeemable Warrant |
| Trading Symbol | FRXB.U |
| Security Exchange Name | NYSE |
| Class A Common Stock, par value $0.0001 per share | |
| Title of 12(b) Security | Class A Common Stock, par value $0.0001 per share |
| Trading Symbol | FRXB |
| Security Exchange Name | NYSE |
| Redeemable Warrants, each exercisable for one share of Class A Common Stock for $11.50 per share | |
| Title of 12(b) Security | Redeemable Warrants, each exercisable for one share of Class A Common Stock for $11.50 per share |
| Trading Symbol | FRXB WS |
| Security Exchange Name | NYSE |
