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Fair Value Measures and Disclosures - Level 3 Rollforward (Details) - Level 3
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Level 3 investments at December 31, 2020 $ 0
Increase due to acquisition of Level 3 investments 99,723
Increase in fair value of Level 3 investments 2,632
Level 3 investments at December 31, 2021 $ 102,355