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Summary of Significant Accounting Policies - Schedule of Restricted Cash and Short-Term Investments Cost Basis and Fair Value (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Cost Basis      
Restricted cash $ 7,537 $ 4,797 $ 110,564
Restricted short-term investments (greater than three months maturity) 115,379 115,379  
Restricted cash and short-term investments 122,916 120,176  
Fair Value      
Restricted cash 7,537 4,797  
Restricted short-term investments (greater than three months maturity) 117,163 116,175  
Restricted cash and short-term investments $ 124,700 $ 120,972