Landfill Accounting - Final Capping, Closure and Post-Closure Liability (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Landfill Accounting [Abstract]
Final capping, closure and post-closure liability at the beginning of the period	$ 651,586
Liability adjustments	(106,659)
Accretion expense associated with landfill obligations	10,272	$ 11,872
Closure payments	(65,990)
Foreign currency translation adjustment	(1,415)
Final capping, closure and post-closure liability at the end of the period	$ 701,112