Subsequent Events (Details) - USD ($)					3 Months Ended
	Nov. 03, 2025	Oct. 28, 2025	Oct. 01, 2025	Jul. 23, 2025	Sep. 30, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 17, 2025	Dec. 31, 2024	Apr. 29, 2024
Subsequent Event [Line Items]
Common stock, par value (in dollars per share)								$ 0.0001
Equity offerings, net of issuance costs					$ 62,962,000	$ 4,903,000	$ 11,269,000
Opco
Subsequent Event [Line Items]
Cash consideration				$ 11,000,000
Indemnity Escrow Account | Opco
Subsequent Event [Line Items]
Cash consideration				1,000,000
Working Capital Adjustment Escrow Account | Opco
Subsequent Event [Line Items]
Cash consideration				$ 1,500,000
Subsequent Event
Subsequent Event [Line Items]
Discount rate to be used to calculate percentage of payments to holders	18.00%
Subsequent Event | Pre-funded warrants
Subsequent Event [Line Items]
Warrants issued (in shares)		28,265
Warrants outstanding (in shares)		28,265
Subsequent Event | Opco
Subsequent Event [Line Items]
Restricted cash loaned			$ 5,000,000
Subsequent Event | Indemnity Escrow Account | Opco
Subsequent Event [Line Items]
Cash consideration			1,000,000
Subsequent Event | Working Capital Adjustment Escrow Account | Opco
Subsequent Event [Line Items]
Cash consideration			1,500,000
Subsequent Event | Discontinued Operations, Held-for-Sale | Loyalty Business | Project Labrador Holdco, LLC
Subsequent Event [Line Items]
Consideration			18,876,950
Proceeds from divestiture			$ 9,974,000
Bakkt Class A Common Stock | Subsequent Event
Subsequent Event [Line Items]
Common stock, par value (in dollars per share)	$ 0.0001
NewCo Class A Common Stock | Subsequent Event
Subsequent Event [Line Items]
Common stock, par value (in dollars per share)	$ 0.0001
Equity offerings, net of issuance costs	$ 5,700,000
NewCo Class A Common Stock | Subsequent Event | ICE
Subsequent Event [Line Items]
Number of shares issued (in shares)	465,890
NewCo Class A Common Stock | Subsequent Event | Mr. Naheta
Subsequent Event [Line Items]
Number of shares issued (in shares)	69,733
Bakkt Class V Common Stock | Subsequent Event
Subsequent Event [Line Items]
Common stock, par value (in dollars per share)	$ 0.0001
NewCo Class V Common Stock | Subsequent Event
Subsequent Event [Line Items]
Common stock, par value (in dollars per share)	$ 0.0001
Class A Common Stock
Subsequent Event [Line Items]
Common stock, par value (in dollars per share)					$ 0.0001				$ 0.0001	$ 0.0001
Class A Common Stock | Subsequent Event | Pre-funded warrants
Subsequent Event [Line Items]
Exercise of warrants (in shares)		28,265
Warrants received upon exercise (in shares)		28,264