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Fair Value Measurements (Details) - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation - Fair Value, Inputs, Level 3 [Member] - 3.25% Convertible Senior Notes Due 2023 [Member] - Fair Value, Recurring [Member] - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Balance $ 21,918 $ 21,282
Change in fair value 6,668 2,065
Balance $ 28,586 $ 23,347