Failed sale and leaseback arrangements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Leases [Abstract]
Sale leaseback arrangement, impairment loss	$ 0.0	$ 0.0	$ 0.8