Investments and other assets - Components of Investments and Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Investments, All Other Investments [Abstract]
Cash value life insurance	$ 52,460	$ 51,860
Equity method investments	16,469	16,280
Other equity investments	30,904	29,020
Deferred financing costs	5,389	6,137
Prepaid assets	3,963	5,960
Other long-term assets	21,188	23,280
Total	$ 130,373	$ 132,537