Cash and Cash Equivalents, Restricted Cash and Short-Term Investments (Tables)

9 Months Ended

Sep. 30, 2025

Investments, Debt and Equity Securities [Abstract]

Schedule of Cash, Cash Equivalents and Investments

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:

	September 30,
	2025		2024
Cash and Cash Equivalents	$	444,672	$	331,674
Restricted Cash - Current (a)	42,036		37,941
Restricted Cash - Noncurrent (a)	124,873		—
Cash and Cash Equivalents and Restricted Cash	$	611,581	$	369,615

(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 Debt Securities, Available-for-Sale

The Company's investments in available-for-sale securities were as follows:

	December 31, 2024
					Gross Unrealized
	Amortized Cost		Allowance for Credit Losses		Gains		Losses		Fair Value
U.S. Treasury Securities	$	51,885	$	—	$	120	$	(12)	$	51,993