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Revenue
 9 Months Ended
Sep. 30, 2022
Revenue from Contract with Customer [Abstract]  
Revenue Revenue
Disaggregation of Revenue from Contracts with Customers

The Company earns revenues primarily through the sale of coal produced at Company operations and coal purchased from third parties. The Company extracts, processes and markets met and thermal coal from deep and surface mines for sale to steel and coke producers, industrial customers, and electric utilities.
The Company has disaggregated revenue between met coal and thermal coal and export and domestic revenues which depicts the pricing and contract differences between the two. Export revenue generally is derived by spot or short term contracts with pricing determined at the time of shipment or based on a market index; whereas domestic revenue is characterized by contracts that typically have a term of one year or longer and typically the pricing is fixed. The following tables disaggregate the Company’s coal revenues by product category and by market to depict how the nature, amount, timing, and uncertainty of the Company’s coal revenues and cash flows are affected by economic factors:
Three Months Ended September 30, 2022
Met CoalThermal CoalTotal
Export coal revenues$602,314 $39,031 $641,345 
Domestic coal revenues192,301 34,203 226,504 
Total coal revenues$794,615 $73,234 $867,849 

Three Months Ended September 30, 2021
Met CoalThermal CoalTotal
Export coal revenues$503,566 $13,311 $516,877 
Domestic coal revenues92,115 38,137 130,252 
Total coal revenues$595,681 $51,448 $647,129 

Nine Months Ended September 30, 2022
Met CoalThermal CoalTotal
Export coal revenues$2,626,077 $55,796 $2,681,873 
Domestic coal revenues514,771 75,201 589,972 
Total coal revenues$3,140,848 $130,997 $3,271,845 

Nine Months Ended September 30, 2021
Met CoalThermal CoalTotal
Export coal revenues$996,642 $20,035 $1,016,677 
Domestic coal revenues297,592 111,770 409,362 
Total coal revenues$1,294,234 $131,805 $1,426,039 

Performance Obligations

The following table includes estimated revenue expected to be recognized in the future related to performance obligations that are unsatisfied as of September 30, 2022:
Remainder of 20222023202420252026Total
Estimated coal revenues$11,388 $32,919 $37,250 $— $— $81,557