XML 71 R49.htm IDEA: XBRL DOCUMENT v3.24.0.1
Fair Value Measurements - Fair value hierarchy of assets and liabilities (Details) - Recurring - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds (1) $ 118,768 $ 3,297
Equity securities 150,522 85,415
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds (1) 118,768 3,297
Equity securities 139,778 76,580
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds (1) 0 0
Equity securities 0 0
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds (1) 0 0
Equity securities 0 0
Fair Value Measured at Net Asset Value Per Share [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds (1) 0 0
Equity securities $ 10,744 $ 8,835