Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail)			1 Months Ended	3 Months Ended			6 Months Ended
	May 30, 2025 USD ($) $ / shares shares	Jun. 30, 2023 shares	Dec. 31, 2024 USD ($) $ / shares shares	Jun. 30, 2025 USD ($) $ / shares shares	Mar. 31, 2025 shares	Jun. 30, 2024 USD ($) shares	Jun. 30, 2025 USD ($) Segment $ / shares shares	Jun. 30, 2024 USD ($) shares	Jun. 30, 2023 shares	Jan. 01, 2025 USD ($)
Property, Plant and Equipment [Line Items]
Cash In Transit | $			$ 2,600,000	$ 4,000,000			$ 4,000,000
Cryptocurrencies | $			1,510,000	11,563,000			11,563,000			$ 2,362,000
Depreciation | $				1,500,000		$ 2,600,000	3,000,000	$ 5,200,000
Impairment of long lived assets held for use | $				0		0	0	0
Impairment of goodwill | $				$ 0		$ 0	$ 0	$ 0
Number of operating segments | Segment							1
Number of reporting segments | Segment							1
Weighted average common stock outstanding - basic				37,541,637	37,541,637	19,432,011	29,406,538	18,016,761
Weighted average common stock outstanding - diluted				37,541,637		19,432,011	29,406,538	18,016,761
Distribution paid | $							$ 10,117,000	$ 7,748,000
Class of Warrant or Right, Outstanding				43,848,750			43,848,750
Class of warrant or right exercise price | $ / shares				$ 11.5			$ 11.5
Bitcoin [Member]
Property, Plant and Equipment [Line Items]
Cryptocurrencies | $			600,000
Cryptocurrency, Fair Value | $				$ 10,700,000			$ 10,700,000
Public Warrants [Member]
Property, Plant and Equipment [Line Items]
Class of Warrant or Right, Outstanding				31,625,000			31,625,000
Private Warrants [Member]
Property, Plant and Equipment [Line Items]
Class of Warrant or Right, Outstanding				12,223,750			12,223,750
BT Hold Co [Member]
Property, Plant and Equipment [Line Items]
Distribution paid | $			$ 29,000,000
Conversion of stock, description							During the three months ended March 31, 2025, the holders of the Series A Preferred Stock exercised their option to convert the Series A Preferred Stock for Class A common stock on a 1:1 basis.
Additional earnout shares issuable				15,000,000			15,000,000
GSRM [Member]
Property, Plant and Equipment [Line Items]
Class of warrants or rights assumed in the course of business combination				43,848,750			43,848,750
GSRM [Member] | Public Warrants [Member]
Property, Plant and Equipment [Line Items]
Class of warrants or rights assumed in the course of business combination				31,625,000			31,625,000
GSRM [Member] | Private Warrants [Member]
Property, Plant and Equipment [Line Items]
Class of warrants or rights assumed in the course of business combination				12,223,750			12,223,750
Bt Assets [Member]
Property, Plant and Equipment [Line Items]
Number of shares issued		44,100,000
Bt Assets [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Payment for termination of Tax Receivable Agreement | $	$ 8,400,000
Bt Assets [Member] | Founder Preferred Stock [Member]
Property, Plant and Equipment [Line Items]
Limited Liability Company (LLC) Preferred Unit, Outstanding		2,900,000							2,900,000
Bt Assets [Member] | Class 1 Earnout Units [Member]
Property, Plant and Equipment [Line Items]
Earnout Unit Outstanding									5,000,000
Bt Assets [Member] | Class 2 Earnout Units [Member]
Property, Plant and Equipment [Line Items]
Earnout Unit Outstanding									5,000,000
Bt Assets [Member] | Class 3 Earnout Units [Member]
Property, Plant and Equipment [Line Items]
Earnout Unit Outstanding									5,000,000
Bitcoin Depot Inc. [Member]
Property, Plant and Equipment [Line Items]
Common unit, issued		12,358,691							12,358,691
Common Unit, Outstanding		12,358,691							12,358,691
Limited Liability Company (LLC) Preferred Unit, Outstanding		4,300,000							4,300,000
Class of Warrant or Right, Outstanding		43,848,750							43,848,750
Class A Common Stock [Member]
Property, Plant and Equipment [Line Items]
Shares outstanding			19,072,544	25,250,155			25,250,155
Shares issued			19,263,164	25,440,775			25,440,775
Common stock, vote per share							one vote
Par value | $ / shares			$ 0.0001	$ 0.0001			$ 0.0001
Class A Common Stock [Member] | BT Hold Co [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Common stock, vote per share	one vote
Class of warrant or right exercise price | $ / shares	$ 11.5
Class A Common Stock [Member] | GSRM [Member]
Property, Plant and Equipment [Line Items]
Class of warrant or right exercise price | $ / shares				$ 11.5			$ 11.5
Common Stock [Member] | BT Hold Co [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Shares outstanding	41,193,024
Common stock shares issued and outstanding percentage	63.48%
Common Stock [Member] | Bt Assets [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Shares of capital stock consideration percentage	100.00%
Common Stock [Member] | Bitcoin Depot Inc. [Member]
Property, Plant and Equipment [Line Items]
Common Unit, Outstanding		41,200,000							41,200,000
Class E Common Stock [Member]
Property, Plant and Equipment [Line Items]
Shares outstanding			1,075,761	0			0
Shares issued			1,075,761	0			0
Earnout shares issuable				15,000,000			15,000,000
Par value | $ / shares			$ 0.0001	$ 0.0001			$ 0.0001
Class E Common Stock [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Earnout shares issuable	15,000,000
Class E Common Stock [Member] | Sponsor [Member]
Property, Plant and Equipment [Line Items]
Earnout shares issuable				1,075,061	1,075,061		1,075,061
Class E Common Stock [Member] | Sponsor [Member] | GSRM [Member]
Property, Plant and Equipment [Line Items]
Earnout shares issuable				1,075,761			1,075,761
Class V Common Stock [Member]
Property, Plant and Equipment [Line Items]
Shares outstanding				0			0
Par value | $ / shares				$ 0.0001			$ 0.0001
Common stock percentage of voting rights				20.00%			20.00%
Class V Common Stock [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Shares issued	41,193,024
Class V Common Stock [Member] | BT Hold Co [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Shares outstanding	41,193,024
Class V Common Stock [Member] | BT Hold Co [Member] | Minimum [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Common stock percentage of voting rights	20.00%
Class M Common Stock [Member]
Property, Plant and Equipment [Line Items]
Shares outstanding				41,193,024			41,193,024
Common stock, vote per share							ten votes
Par value | $ / shares				$ 0.0001			$ 0.0001
Class M Common Stock [Member] | Bt Assets [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Shares issued	41,193,024
Common stock, vote per share	ten votes
Class M Common Stock [Member] | Bt Assets [Member] | Minimum [Member] | Up-C Restructuring [Member]
Property, Plant and Equipment [Line Items]
Common stock percentage of voting rights	20.00%
Selling, General and Administrative Expenses [Member]
Property, Plant and Equipment [Line Items]
Advertising expenses | $				$ 1,500,000		$ 1,600,000	$ 3,200,000	$ 3,300,000
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | No Major Customer [Member]
Property, Plant and Equipment [Line Items]
Concentration risk percentage							10.00%	10.00%
Bitcoin Teller Machine [Member]
Property, Plant and Equipment [Line Items]
Cash balances | $			$ 10,700,000	$ 16,900,000			$ 16,900,000
Intuitive Software LLC [Member]
Property, Plant and Equipment [Line Items]
Equity method investment, ownership percentage				82.14%			82.14%