Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Schedule of Rollforward of Level 3 Assets at Cost Adjusted for any Impairment and Observable Price C (Details)

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Fair Value Measurements - Schedule of Rollforward of Level 3 Assets at Cost Adjusted for any Impairment and Observable Price C (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Fair Value Disclosures [Abstract]    
Beginning Balance $ 345 $ 346
Purchases 1,141  
Unrealized Gains (losses) 2,835 (1)
Ending Balance $ 4,321 $ 345