Electrical Power Access, Not Yet Commenced

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Amount of interest expense on finance lease liability.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of unrecorded obligation to transfer funds in future for fixed or minimum amount or quantity of product and service at fixed or minimum price. Includes, but is not limited to, lease not yet commenced and take-or-pay and throughput contracts.

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Leases - Narrative (FY) (Details) $ in Thousands	12 Months Ended
Leases - Narrative (FY) (Details) $ in Thousands	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2025 USD ($) MW	Aug. 31, 2024 MW
Lessee, Lease, Description [Line Items]
Interest expense	$ 8,709	$ 868	$ 903
Lease not yet commenced term	17 years
Electrical power access \| MW				135	50
Data Center
Lessee, Lease, Description [Line Items]
Renewal term	10 years			10 years
Equipment
Lessee, Lease, Description [Line Items]
Renewal term	2 years
Data Center And Office Buildings
Lessee, Lease, Description [Line Items]
Lease not yet commenced, liability	$ 15,000,000			$ 34,000,000
Various Data Centers
Lessee, Lease, Description [Line Items]
Lease not yet commenced, liability	$ 1,100,000			$ 900,000
Lease not yet commenced term				13 years
Minimum \| Office Building
Lessee, Lease, Description [Line Items]
Term of contract	4 years			3 years
Minimum \| Data Center
Lessee, Lease, Description [Line Items]
Term of contract	3 years			5 years
Minimum \| Data Center And Office Buildings
Lessee, Lease, Description [Line Items]
Lease not yet commenced term	5 years			4 years
Maximum \| Office Building
Lessee, Lease, Description [Line Items]
Term of contract	10 years			10 years
Maximum \| Data Center
Lessee, Lease, Description [Line Items]
Term of contract	15 years			15 years
Maximum \| Data Center And Office Buildings
Lessee, Lease, Description [Line Items]
Lease not yet commenced term	16 years			16 years