XML 39 R30.htm IDEA: XBRL DOCUMENT v3.23.1
Cash, Cash Equivalents, Marketable Securities, and Restricted Cash - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Cash, Cash Equivalents, and Short-Term Investments [Abstract]      
Cash and cash equivalents $ 160,602,000 $ 148,813,000 $ 233,317,000
Available-for-sale debt securities 106,507,000 144,782,000  
Debt securities, realized gain (loss) 0 0  
Fair value of available-for-sale debt securities in unrealized loss positions $ 37,600,000 $ 0