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Summary of Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($)
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Accounting Policies [Abstract]        
Cash and cash equivalents $ 168,330,000 $ 179,723,000    
Restricted cash 2,647,000 26,358,000    
Total cash, cash equivalents and restricted cash 170,977,000 206,081,000 $ 300,329,000 $ 262,065,000
Cash equivalents 78,400,000 1,000,000    
Money market funds $ 68,700,000 $ 0