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Summary of Significant Accounting Policies (Reconciliation of Cash, Cash Equivalents, and Restricted Cash) (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]        
Cash and cash equivalents $ 343,809 $ 296,151 $ 252,340  
Restricted cash included in other long-term assets $ 1,782 $ 621 $ 0  
Restricted Cash, Statement of Financial Position [Extensible Enumeration] Other long-term assets Other long-term assets Other long-term assets  
Total cash, cash equivalents, and restricted cash $ 345,591 $ 296,772 $ 252,340 $ 84,254