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Accounts Receivable (Tables)
12 Months Ended
Dec. 31, 2020
Receivables [Abstract]  
Schedule of Accounts Receivable
Accounts receivable consists of the following (in millions):
 As of December 31,
 20202019
Current:
Patient accounts receivable
$563.0 $498.7 
Other accounts receivable9.8 7.4 
572.8 506.1 
Noncurrent patient accounts receivable
123.8 152.1 
Accounts receivable$696.6 $658.2