Net Loss Per Share - Schedule of loss per share and weighted average of common stock outstanding (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator [Abstract]
Net loss attributable to Bitcoin Depot Inc. - basic	$ (2,561)	$ (10,699)	$ (4,099)	$ (10,699)
Net loss attributable to Bitcoin Depot Inc. - diluted	$ (2,561)	$ (10,699)	$ (4,099)	$ (10,699)
Denominator [Abstract]
Weighted average common stock outstanding - basic	19,432,011	16,658,691	18,016,761	16,658,691
Weighted average common stock outstanding - diluted	19,432,011	16,658,691	18,016,761	16,658,691
Earnings per share, basic	$ (0.13)	$ (0.64)	$ (0.23)	$ (0.64)
Earnings per share, diluted	(0.13)	(0.64)	(0.23)	(0.64)
Bitcoin Depot Inc. [Member]
Denominator [Abstract]
Earnings per share, basic	(0.13)	(0.64)	(0.23)	(0.64)
Earnings per share, diluted	$ (0.13)	$ (0.64)	$ (0.23)	$ (0.64)