Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Debt Securities, Available-for-sale (Details)

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Fair Value Measurements - Summary of Debt Securities, Available-for-sale (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cost or Amortized Cost $ 814,183 $ 828,203
Unrealized Gains 63 589
Unrealized Losses (906) (559)
Allowance for credit losses 0 0
Fair value 813,340 828,233
Term deposits    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cost or Amortized Cost 43,076 42,538
Unrealized Gains 0 0
Unrealized Losses 0 0
Allowance for credit losses 0 0
Fair value 43,076 42,538
Asset backed securities    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cost or Amortized Cost 55,939 27,465
Unrealized Gains 0 21
Unrealized Losses (106) (17)
Allowance for credit losses 0 0
Fair value 55,833 27,469
Government debt securities    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cost or Amortized Cost 257,223 265,439
Unrealized Gains 19 269
Unrealized Losses (276) (27)
Allowance for credit losses 0 0
Fair value 256,966 265,681
Corporate debt securities    
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]    
Cost or Amortized Cost 457,945 492,761
Unrealized Gains 44 299
Unrealized Losses (524) (515)
Allowance for credit losses 0 0
Fair value $ 457,465 $ 492,545