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Cash and Cash Equivalents, Restricted Cash and Short-term Investments (Tables)
 12 Months Ended
Dec. 31, 2025
Cash and Cash Equivalents [Abstract]  
Schedule of Cash and Cash Equivalents
The following table disaggregates the Company’s cash, cash equivalents and restricted cash, which reconciles to the total shown on the Consolidated Statements of Cash Flows:
December 31,
20252024
Cash and Cash Equivalents$432,174 $408,240 
Restricted Cash - Current (a)
37,403 39,302 
Restricted Cash - Noncurrent (a)
131,585 — 
Cash and Cash Equivalents and Restricted Cash$601,162 $447,542 
(a) Restricted Cash - Current and Restricted Cash - Noncurrent are included in Other Current Assets and Funds for Asset Retirement Obligations, respectively, in the accompanying Consolidated Balance Sheets.
Schedule of Restricted Cash
The following table disaggregates the Company’s cash, cash equivalents and restricted cash, which reconciles to the total shown on the Consolidated Statements of Cash Flows:
December 31,
20252024
Cash and Cash Equivalents$432,174 $408,240 
Restricted Cash - Current (a)
37,403 39,302 
Restricted Cash - Noncurrent (a)
131,585 — 
Cash and Cash Equivalents and Restricted Cash$601,162 $447,542 
(a) Restricted Cash - Current and Restricted Cash - Noncurrent are included in Other Current Assets and Funds for Asset Retirement Obligations, respectively, in the accompanying Consolidated Balance Sheets.
Schedule Available-for-Sale Securities
The Company’s investments in available-for-sale securities were as follows:
December 31, 2024
Amortized CostAllowance for Credit LossesGross Unrealized
GainsLossesFair Value
U.S. Treasury Securities$51,885 $— $120 $(12)$51,993 
The Company’s investments in available-for-sale securities are as follows:
Amortized CostAllowance for Credit LossesGross Unrealized
Funds for Asset Retirement ObligationsGainsLossesFair Value
December 31, 2025$15,546 $— $2,403 $(660)$17,289 
December 31, 2024$12,112 $— $87 $(145)$12,054