Leases - Weighted average remaining lease term and weighted average discount rate (Details)	Mar. 31, 2025	Dec. 31, 2024
Leases
Finance leases remaining lease term	4 years 1 month 6 days	4 years 2 months 12 days
Operating leases remaining lease term	13 years 7 months 6 days	13 years 10 months 24 days
Finance leases discount rate	5.50%	5.50%
Operating leases discount rate	8.20%	8.20%