Leases - Future minimum payments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Operating lease liabilities under Topic 842
Operating leases - 2023	$ 7,690
Operating leases - 2024	30,084
Operating leases - 2025	27,214
Operating leases - 2026	18,806
Operating leases - 2027	13,571
Operating leases - later years	50,056
Operating leases - Total	147,421
Less: Imputed interest	(18,398)
Operating lease liabilities	$ 129,023	$ 137,290
Operating Lease Liability Statement Of Financial Position Extensible List	Other liabilities	Other liabilities
Finance lease liabilities under Topic 842
Finance leases - 2023	$ 2,061
Finance leases - 2024	3,991
Finance leases - 2025	4,084
Finance leases - 2026	3,839
Finance leases - 2027	2,468
Finance leases - later years	9,346
Finance leases - Total	25,789
Less: imputed interest	(2,609)
Finance lease liabilities	$ 23,180	$ 24,737
Finance Lease Liability Statement Of Financial Position Extensible List	Other liabilities	Other liabilities