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Fair Value Measurements - Transfers (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Fair Value Disclosures [Abstract]    
Asset transferred from level 1 to 2 $ 0 $ 0
Asset transferred from level 2 to 1 0 0
Asset transferred level 3 net 0 0
Liabilities transferred from level 1 to 2 0 0
Liabilities transferred from level 2 to 1 0 0
Liabilities transferred level 3 net $ 0 $ 0