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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