General form of registration statement for all companies including face-amount certificate companies

Debt Obligations Net - Summary of Outstanding Debt Obligations (Parenthetical) (Details)

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Debt Obligations Net - Summary of Outstanding Debt Obligations (Parenthetical) (Details) - Owl Rock Capital and Subsidiaries and Owl Rock Capital Securities LLC - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Revolving Credit Facility #1 [Member]    
Debt Instrument [Line Items]    
Unamortized deferred financing costs $ 373.0 $ 89.0
Revolving Credit Facility #2 [Member]    
Debt Instrument [Line Items]    
Unamortized deferred financing costs 62.0 148.0
Term Loan [Member]    
Debt Instrument [Line Items]    
Unamortized deferred financing costs $ 3.4 $ 3.8