Document and Entity Information
| Document and Entity Information | Jul. 24, 2023 |
| Entity Listings [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 24, 2023 |
| Entity File Number | 001-41048 |
| Entity Registrant Name | Integrated Rail and Resources Acquisition Corp. |
| Entity Central Index Key | 0001854795 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 86-2581754 |
| Entity Address, Address Line One | 400 W. Morse Boulevard, Suite 220 |
| Entity Address, City or Town | Winter Park |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 32789 |
| City Area Code | 321 |
| Local Phone Number | 972-1583 |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Common Stock [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one share of Class A common stock, par value $0.0001 per share, and one-half of one redeemable warrant |
| Trading Symbol | IRRXU |
| Security Exchange Name | NYSE |
| Shares of Class A common stock, par value $0.0001 per share [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Shares of Class A common stock, par value $0.0001 per share |
| Trading Symbol | IRRX |
| Security Exchange Name | NYSE |
| Redeemable Warrants, each exercisable for one share of Class A common stock for $11.50 per share [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Redeemable Warrants, each exercisable for one share of Class A common stock for $11.50 per share |
| Trading Symbol | IRRXW |
| Security Exchange Name | NYSE |