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Summary of Significant Accounting Policies (Cash and Cash Equivalents) (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Aug. 31, 2024
Feb. 29, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Cash and Cash Equivalents [Line Items]          
Payments to Acquire Held-to-Maturity Securities $ 550,000 $ 341,000 $ 0 $ 890,970 $ 0
Proceeds from Sale of Held-to-Maturity Securities 350,000        
Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value $ 563,000        
Maximum          
Cash and Cash Equivalents [Line Items]          
Investment maturity date for cash equivalent classification     3 months