| Document and Entity Information | Jul. 18, 2024 |
| Document And Entity Information [Line Items] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001838513 |
| Document Type | 8-K |
| Document Period End Date | Jul. 18, 2024 |
| Entity Registrant Name | Marblegate Acquisition Corp. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-40862 |
| Entity Tax Identification Number | 85-4249135 |
| Entity Address, Address Line One | 411 Theodore Fremd Avenue |
| Entity Address, Address Line Two | Suite 206S |
| Entity Address, City or Town | Rye |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10580 |
| City Area Code | (914) |
| Local Phone Number | 415-4081 |
| 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 |
| Units Each Consisting Of One Share Of Class A Common Stock And One Half Of One Redeemable Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Units, each consisting of one share of Class A Common Stock and one-half of one redeemable warrant |
| Trading Symbol | GATEU |
| Security Exchange Name | NASDAQ |
| Common Class B [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Shares of Class A Common Stock, par value $0.0001 per share |
| Trading Symbol | GATE |
| Security Exchange Name | NASDAQ |
| Warrants Each Exercisable For One Share Of Class A Common Stock At A Price Of 11.50 [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Warrants, each exercisable for one share of Class A Common Stock at a price of $11.50 |
| Trading Symbol | GATEW |
| Security Exchange Name | NASDAQ |
