Stockholders’ Equity - Noncontrolling Ownership Interest (Details) - shares	Sep. 30, 2023	Dec. 31, 2022
Bakkt Opco Holdings, LLC
Noncontrolling Interest [Line Items]
Ownership percentage, Total Opco common units outstanding	100.00%	100.00%
Bakkt Opco Holdings, LLC
Noncontrolling Interest [Line Items]
Opco Common Units (in shares)	274,664,349	264,409,620
Class A Common Stock | Bakkt Opco Holdings, LLC
Noncontrolling Interest [Line Items]
Ownership percentage, Opco common units held by Bakkt Holdings, Inc.	34.00%	31.00%
Class A Common Stock | Opco common units held by Bakkt Holdings, Inc. | Bakkt Opco Holdings, LLC
Noncontrolling Interest [Line Items]
Opco Common Units (in shares)	91,414,923	80,926,843
Class V Common Stock | Bakkt Opco Holdings, LLC
Noncontrolling Interest [Line Items]
Ownership percentage, Opco common units held by noncontrolling interest holders	66.00%	69.00%
Class V Common Stock | Opco common units held by noncontrolling interest holders | Bakkt Opco Holdings, LLC
Noncontrolling Interest [Line Items]
Opco Common Units (in shares)	183,249,426	183,482,777