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Organization and Summary of Significant Accounting Policies - Goodwill and Other Intangible Assets, Net (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill and Other Intangible Assets, Net      
Goodwill impairment $ 0.0 $ 0.0 $ 0.0
Impairment of intangible assets 0.0 0.0  
Trade name      
Goodwill and Other Intangible Assets, Net      
Impairment of intangible assets $ 0.0 $ 0.0 $ 0.2