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Other Assets - Prepaid and Other Current Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Jun. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]      
Tax receivables $ 63,183 $ 57,127  
Restricted cash 10,578 5,861 $ 741
Prepaid assets 6,085 5,479  
Patents held for sale 4,000 4,000  
Other current assets 2,547 5,078  
Total Prepaid and other current assets $ 86,393 $ 77,545