Leases - Future minimum payments (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Operating lease liabilities
Operating leases - Remaining 2024	$ 7,818
Operating leases - 2025	28,553
Operating leases - 2026	20,088
Operating leases - 2027	14,681
Operating leases - 2028	12,221
Operating leases - later years	40,309
Operating leases - Total	123,670
Less: Imputed interest	(15,505)
Operating lease liabilities	108,165	$ 126,946
Finance lease liabilities
Finance leases - Remaining 2024	1,156
Finance leases - 2025	4,692
Finance leases - 2026	4,462
Finance leases - 2027	3,105
Finance leases - 2028	2,432
Finance leases - later years	10,908
Finance leases - Total	26,755
Less: imputed interest	(2,962)
Finance lease liabilities	$ 23,793	$ 25,778