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Property, plant and equipment, net - Narrative (Details) $ in Thousands		1 Months Ended	3 Months Ended
	Sep. 01, 2024 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) gpu	Sep. 30, 2024 USD ($)
Property, Plant and Equipment [Line Items]
Depreciation, excluding ROU			$ 85,226	$ 33,931
GPUs purchased | gpu			3,300
Percentage leased			1
Lease not yet commenced, total			$ 198,000
Asset impairment charges			16,257
Loss on change in fair value			0	2,582
Asset, held-for-sale			$ 0
Maximum
Property, Plant and Equipment [Line Items]
Lessee, term of contract			36 months
Minimum
Property, Plant and Equipment [Line Items]
Lessee, term of contract			24 months
S19 j Pro Miners
Property, Plant and Equipment [Line Items]
Loss on change in fair value	$ 6,836	$ 2,582
Mining hardware
Property, Plant and Equipment [Line Items]
Depreciation, excluding ROU				$ 28,917
Disposals			$ 15,330
T21 Miners
Property, Plant and Equipment [Line Items]
Estimated residual value			$ 5,800

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