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Summary of Significant Accounting Policies - Prepaid Expenses and Other Current Assets (Details) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Accounting Policies [Abstract]      
Accounts receivable $ 3,900,000 $ 4,100,000  
Accounts receivable, writeoff 0 0 $ 0
Accounts receivable, allowance for doubtful accounts $ 0 $ 0