Net Loss per Share - Basic and Diluted Per Share Computations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator – basic and diluted:
Net loss	$ (21,275)	$ (44,859)
Less: Net loss attributable to noncontrolling interest	(13,110)	(30,883)
Net loss attributable to Bakkt Holdings, Inc. – basic	(8,165)	(13,976)
Net loss and tax effect attributable to noncontrolling interests	0	0
Net loss attributable to Bakkt Holdings, Inc. – diluted	$ (8,165)	$ (13,976)
Denominator – basic and diluted:
Weighted average shares outstanding – basic (in dollars per share)	4,396,495	3,275,172
Weighted average shares outstanding – diluted (in dollars per share)	4,396,495	3,275,172
Net loss per share – basic (in dollars per share)	$ (1.86)	$ (4.27)
Net loss per share – diluted (in dollars per share)	$ (1.86)	$ (4.27)