Net Loss per Share - Basic and Diluted Per Share Computations (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Numerator – basic and diluted:
Net loss	$ (225,812)	$ (1,989,934)
Less: Net loss attributable to noncontrolling interest	(150,958)	(1,411,829)
Net loss attributable to Bakkt Holdings, Inc. – basic	(74,854)	(578,105)
Net loss and tax effect attributable to noncontrolling interests	0	0
Net loss attributable to Bakkt Holdings, Inc. – diluted	$ (74,854)	$ (578,105)
Denominator – basic and diluted:
Weighted average shares outstanding – basic (in dollars per share)	89,083,329	71,167,992
Weighted average shares outstanding – diluted (in dollars per share)	89,083,329	71,167,992
Net loss per share – basic (in dollars per share)	$ (0.84)	$ (8.12)
Net loss per share – diluted (in dollars per share)	$ (0.84)	$ (8.12)