Summary of Significant Accounting Policies - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Summary of Significant Accounting Policies
Restricted cash, Balance Sheet location	Prepaid expenses and other current assets		Other assets
Cash and cash equivalents	$ 119,806	$ 20,525	$ 45,972
Restricted cash	163		163
Total	$ 119,969	$ 20,688	$ 46,135	$ 86,629