Leases - Maturities of lease liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Operating leases
2024	$ 6,168
2025	3,862
2026	2,524
2027	1,675
2028	1,524
Thereafter	2,822
Total lease payments	18,575
Less imputed interest	(2,304)
Total	16,271	$ 20,067
Finance leases
2024	115
2025	64
2026	39
2027	13
2028	2
Thereafter	0
Total lease payments	233
Less imputed interest	(13)
Total	$ 220	$ 291