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Fair Value of Financial Instruments and Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Trading securities	$ 65,340	$ 83,938
Short-term investments	30,887	49,582
Long-term restricted investments	34,453	34,356
Quoted Prices in Active Markets (Level 1)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Trading securities	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Trading securities	65,340	83,938
Significant Unobservable Inputs (Level 3)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Trading securities	$ 0	$ 0

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