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Summary of Significant Accounting Policies Impairment of Long-Lived Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]      
Impairment of Intangible Assets (Excluding Goodwill) $ 0 $ 0 $ 0
Asset Impairment Charges 0 1,600 28,638
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) $ 0 $ 1,600 $ 0