XML 53 R41.htm IDEA: XBRL DOCUMENT v3.23.3
Investments and fair value measurements - Summary of the Changes in the Fair Value of Level 3 Financial Instruments (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Strategic Investments        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Vesting and remeasurement of SARs $ 0 $ 0 $ 0 $ 0
Exercises of SARs     0  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance 10,311 15,000 12,104 10,000
Unrealized loss on strategic investments   (2,896) (1,793) (2,896)
Purchases of strategic investments       5,000
Ending balance 10,311 12,104 10,311 12,104
Stock Appreciation Rights        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance 30 419 462 818
Vesting and remeasurement of SARs (4) 165 (183) (234)
Exercises of SARs     (253)  
Amount reclassified from liability to equity upon exchange   (62)   (62)
Unrealized loss on strategic investments   0 0 0
Ending balance $ 26 $ 522 $ 26 522
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Purchases of strategic investments       $ 0