Revenue From Contracts With Customers - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Coal Revenue
Disaggregation of Revenue [Line Items]
Capitalized contract cost, net	$ 0		$ 0		$ 0
Capitalized contract cost, amortization	0	$ 0	0	$ 0
Contract with customer, liability, revenue recognized			0
Third-Party Terminal Revenue
Disaggregation of Revenue [Line Items]
Capitalized contract cost, net	0		0		$ 0
Capitalized contract cost, amortization	$ 0	$ 0	0	$ 0
Contract with customer, liability, revenue recognized			$ 0