Document and Entity Information
| Document and Entity Information | Aug. 15, 2022 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Aug. 15, 2022 |
| Entity Registrant Name | FISCALNOTE HOLDINGS, INC. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-396972 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Address, Address Line One | 1201 Pennsylvania Avenue NW |
| Entity Address, Address Line Two | 6th Floor |
| Entity Address, City or Town | Washington |
| Entity Address, State or Province | DC |
| Entity Address, Postal Zip Code | 20004 |
| City Area Code | 202 |
| Local Phone Number | 793-5300 |
| Written Communications | false |
| 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 | 0001823466 |
| Amendment Flag | false |
| Class A shares [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A common stock, par value $0.0001 per share |
| Trading Symbol | NOTE |
| Security Exchange Name | NYSE |
| Redeemable warrants, each warrant exercisable for one Class A ordinary share at an exercise price of $11.50 [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Warrants to purchase one share of Class A common stock |
| Trading Symbol | NOTE.WS |
| Security Exchange Name | NYSE |