Investments and other assets - Components of Investments and Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Investments, All Other Investments [Abstract]
Cash value life insurance	$ 51,644	$ 50,865
Equity method investments	16,904	16,195
Other equity investments	20,972	19,526
Deferred financing costs	6,898	0
Prepaid assets	7,973	9,878
Other long-term assets	20,225	17,057
Total	$ 124,616	$ 113,521