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Organization and Summary of Significant Accounting Policies - Debt Issuance Costs Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Unamortized debt issuance costs $ 57.8 $ 63.3
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Unamortized debt issuance costs $ 12.2 $ 12.1