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Organization and Summary of Accounting Policies - Rollforward of Goodwill (Details)
$ in Millions
3 Months Ended
Mar. 31, 2022
USD ($)
Goodwill [Roll Forward]  
Goodwill, beginning of period $ 3,911.8
Acquisitions, including post acquisition adjustments 43.4
Disposals and deconsolidations (29.4)
Goodwill, end of period $ 3,925.8