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Cash Equivalents and Marketable Securities - Narrative (Details)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2023
USD ($)
bank
Sep. 30, 2022
USD ($)
Sep. 30, 2023
USD ($)
bank
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Cash Equivalents And Marketable Securities [Line Items]          
Number of domestic banking institutions (in banks) | bank 3   3    
US Government Agencies Debt Securities          
Cash Equivalents And Marketable Securities [Line Items]          
Debt securities, available-for-sale, allowance for credit loss $ 0   $ 0   $ 0
Impairment of marketable securities     0   0
Realized gains or losses on marketable securities 0 $ 0 0 $ 0  
Accrued interest receivable on available-for-sale debt securities 400,000   400,000   100,000
U.S. Banking Institution          
Cash Equivalents And Marketable Securities [Line Items]          
Cash deposits in excess of FDIC limit 16,900,000   16,900,000   $ 23,500,000
U.S. Banking Institution | Maximum          
Cash Equivalents And Marketable Securities [Line Items]          
Cash, FDIC insured amount $ 250,000   $ 250,000