Investments and other assets - Schedule of Investments and Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Investments, All Other Investments [Abstract]
Cash value life insurance	$ 50,865	$ 48,919
Equity method investments	16,195	17,003
Other equity investments	19,526	20,158
Deferred debt issuance costs	0	2,232
Long-term contract assets	9,878	14,135
Other long-term assets	17,057	24,047
Total	$ 113,521	$ 126,494